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Wollney E, Sovich K, LaBarre B, Maixner SM, Paulson HL, Manning C, Fields JA, Lunde A, Boeve BF, Galvin JE, Taylor AS, Li Z, Fechtel HJ, Armstrong MJ. End-of-life experiences in individuals with dementia with Lewy bodies and their caregivers: A mixed-methods analysis. PLoS One 2024; 19:e0309530. [PMID: 39208192 PMCID: PMC11361593 DOI: 10.1371/journal.pone.0309530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Accepted: 08/13/2024] [Indexed: 09/04/2024] Open
Abstract
BACKGROUND Dementia with Lewy bodies (DLB) is one of the most common degenerative dementias, but research on end-of-life experiences for people with DLB and their caregivers is limited. METHOD Dyads of individuals with moderate-advanced DLB and their primary informal caregivers were recruited from specialty clinics, advocacy organizations, and research registries and followed prospectively every 6 months. The current study examines results of caregiver study visits 3 months after the death of the person with DLB. These visits included the Last Month of Life survey, study-specific questions, and a semi-structured interview querying end-of-life experiences. RESULTS Individuals with DLB (n = 50) died 3.24 ± 1.81 years after diagnosis, typically of disease-related complications. Only 44% of caregivers reported a helpful conversation with clinicians regarding what to expect at the end of life in DLB. Symptoms commonly worsening prior to death included: cognition and motor function, ADL dependence, behavioral features, daytime sleepiness, communication, appetite, and weight loss. Almost 90% of participants received hospice care, but 20% used hospice for <1 week. Most caregivers reported overall positive experiences in the last month of life, but this was not universal. Having information about DLB and what to expect, access to support, and hospice care were healthcare factors associated with positive and negative end of life experiences. Hospice experiences were driven by communication, care coordination, quality care, and caregiver education. CONCLUSION Most caregivers of individuals who died with DLB reported positive end-of-life experiences. However, the study identified multiple opportunities for improvement relating to clinician counseling of patients/families, support/hospice referrals, and monitoring individuals with DLB to identify approaching end of life. Future research should quantitatively identify changes that herald end of life in DLB and develop tools that can assist clinicians in evaluating disease stage to better inform counseling and timely hospice referrals. TRIAL REGISTRATION Trial registration information: NCT04829656.
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Affiliation(s)
- Easton Wollney
- Department of Health Outcomes and Biomedical Informatics, University of Florida College of Medicine, Gainesville, Florida, United States of America
| | - Kaitlin Sovich
- Department of Neurology, University of Florida College of Medicine, Gainesville, Florida, United States of America
- Norman Fixel Institute for Neurological Diseases, Gainesville, Florida, United States of America
| | - Brian LaBarre
- Department of Biostatistics, University of Florida College of Medicine, Gainesville, Florida, United States of America
| | - Susan M. Maixner
- Department of Psychiatry, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Henry L. Paulson
- Department of Neurology, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Carol Manning
- Department of Neurology, University of Virginia, Charlottesville, Virginia, United States of America
| | - Julie A. Fields
- Department of Psychiatry and Psychology, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Angela Lunde
- Department of Neurology, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Bradley F. Boeve
- Department of Neurology, Mayo Clinic, Rochester, Minnesota, United States of America
| | - James E. Galvin
- Department of Neurology, Comprehensive Center for Brain Health, University of Miami Miller School of Medicine, Miami, Florida, United States of America
| | - Angela S. Taylor
- Lewy Body Dementia Association, Lilburn, Georgia, United States of America
| | - Zhigang Li
- Department of Biostatistics, University of Florida College of Medicine, Gainesville, Florida, United States of America
| | - Hannah J. Fechtel
- Department of Neurology, University of Florida College of Medicine, Gainesville, Florida, United States of America
- Norman Fixel Institute for Neurological Diseases, Gainesville, Florida, United States of America
| | - Melissa J. Armstrong
- Department of Neurology, University of Florida College of Medicine, Gainesville, Florida, United States of America
- Norman Fixel Institute for Neurological Diseases, Gainesville, Florida, United States of America
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Coughlin DG, MacLeod KR, Middleton JS, Bozoki AC, Galvin JE, Irwin DJ, Lippa CF, Litvan I, Lopez OL, Berman S, Tsuang DW, Zabetian CP, Honig LS, Marder KS, Fleisher JE, Sabbagh M, Wint D, Taylor AS, Bekris L, Leverenz JB, Galasko D. Association of CSF α-Synuclein Seeding Amplification Assay Results With Clinical Features of Possible and Probable Dementia With Lewy Bodies. Neurology 2024; 103:e209656. [PMID: 39013126 PMCID: PMC11238940 DOI: 10.1212/wnl.0000000000209656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 05/28/2024] [Indexed: 07/18/2024] Open
Abstract
BACKGROUND AND OBJECTIVES The clinical diagnosis of dementia with Lewy bodies (DLB) depends on identifying significant cognitive decline accompanied by core features of parkinsonism, visual hallucinations, cognitive fluctuations, and REM sleep behavior disorder (RBD). Hyposmia is one of the several supportive features. α-Synuclein seeding amplification assays (αSyn-SAAs) may enhance diagnostic accuracy by detecting pathologic αSyn seeds in CSF. In this study, we examine how different clinical features associate with CSF αSyn-SAA positivity in a large group of clinically diagnosed participants with DLB. METHODS Cross-sectional and longitudinal CSF samples from the multicentered observational cohort study of the DLB Consortium and similar studies within the Parkinson's Disease Biomarker Program, contributed by academic medical centers in the United States, underwent αSyn-SAA testing. Participants included those clinically diagnosed with DLB and 2 control cohorts. Associations between core DLB features and olfaction with αSyn-SAA positivity were evaluated using logistic regression. RESULTS CSF samples from 191 participants diagnosed with DLB (mean age 69.9 ± 6.8, 15% female), 50 age-matched and sex-matched clinical control participants, and 49 younger analytical control participants were analyzed. Seventy-two percent (137/191) of participants with DLB had positive αSyn-SAAs vs 4% of the control groups. Among participants with DLB, those who were αSyn-SAA-positive had lower Montreal Cognitive Assessment scores (18.8 ± 5.7 vs 21.2 ± 5.2, p = 0.01), had worse parkinsonism on the Movement Disorders Society Unified Parkinson's Disease Rating Scale part III (33.8 ± 15.1 vs 25.6 ± 16.4, p = 0.001), were more likely to report RBD (114/133 [86%] vs 33/53 [62%], p < 0.0001), and had worse hyposmia on the University of Pennsylvania Smell Identification Test (UPSIT) (94/105 [90%] below 15th percentile vs 14/44 [32%], p < 0.0001). UPSIT percentile had the highest area under the curve (0.87, 95% CI 0.81-0.94) in predicting αSyn-SAA positivity and participants scoring at or below the 15th percentile of age and sex normative values had 18.3 times higher odds (95% CI 7.52-44.6) of having a positive αSyn-SAA test. Among 82 participants with longitudinal CSF samples, 81 (99%) had the same αSyn-SAA result for initial and follow-up specimens. DISCUSSION A substantial proportion of clinically diagnosed participants with DLB had negative αSyn-SAA results. Hyposmia was the strongest clinical predictor of αSyn-SAA positivity. Hyposmia and αSyn-SAA may have utility in improving the diagnostic assessment of individuals with potential DLB. CLASSIFICATION OF EVIDENCE This study provided Class III evidence that CSF αSyn-SAA distinguishes patients with clinically diagnosed DLB from normal controls.
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Affiliation(s)
- David G Coughlin
- From the Department of Neurosciences (D.G.C., I.L., D.G.), University of California San Diego; Clinical Laboratory (K.R.M., J.S.M.), Amprion Inc., La Jolla, CA; Department of Neurology (A.C.B.), University of North Carolina, Chapel Hill, NC; Department of Neurology (J.E.G.), University of Miami, FL; Department of Neurology (D.J.I.), University of Pennsylvania, Philadelphia; Department of Neurology (C.F.L.), Thomas Jefferson University, Philadelphia, PA; Department of Neurology (O.L.L., S.B.), University of Pittsburgh, PA; Department of Neurology (D.W.T., C.P.Z.), University of Washington and Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA; Department of Neurology (L.S.H., K.S.M.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (J.E.F.), Rush University, Chicago, IL; Department of Neurology (M.S.), Barrow Neurological Institute, AZ; Department of Neurology (D.W., L.B., J.B.L.), Cleveland Clinic, OH; and Lewy Body Dementia Association (A.S.T.), Lilburn, GA
| | - Karen R MacLeod
- From the Department of Neurosciences (D.G.C., I.L., D.G.), University of California San Diego; Clinical Laboratory (K.R.M., J.S.M.), Amprion Inc., La Jolla, CA; Department of Neurology (A.C.B.), University of North Carolina, Chapel Hill, NC; Department of Neurology (J.E.G.), University of Miami, FL; Department of Neurology (D.J.I.), University of Pennsylvania, Philadelphia; Department of Neurology (C.F.L.), Thomas Jefferson University, Philadelphia, PA; Department of Neurology (O.L.L., S.B.), University of Pittsburgh, PA; Department of Neurology (D.W.T., C.P.Z.), University of Washington and Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA; Department of Neurology (L.S.H., K.S.M.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (J.E.F.), Rush University, Chicago, IL; Department of Neurology (M.S.), Barrow Neurological Institute, AZ; Department of Neurology (D.W., L.B., J.B.L.), Cleveland Clinic, OH; and Lewy Body Dementia Association (A.S.T.), Lilburn, GA
| | - John S Middleton
- From the Department of Neurosciences (D.G.C., I.L., D.G.), University of California San Diego; Clinical Laboratory (K.R.M., J.S.M.), Amprion Inc., La Jolla, CA; Department of Neurology (A.C.B.), University of North Carolina, Chapel Hill, NC; Department of Neurology (J.E.G.), University of Miami, FL; Department of Neurology (D.J.I.), University of Pennsylvania, Philadelphia; Department of Neurology (C.F.L.), Thomas Jefferson University, Philadelphia, PA; Department of Neurology (O.L.L., S.B.), University of Pittsburgh, PA; Department of Neurology (D.W.T., C.P.Z.), University of Washington and Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA; Department of Neurology (L.S.H., K.S.M.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (J.E.F.), Rush University, Chicago, IL; Department of Neurology (M.S.), Barrow Neurological Institute, AZ; Department of Neurology (D.W., L.B., J.B.L.), Cleveland Clinic, OH; and Lewy Body Dementia Association (A.S.T.), Lilburn, GA
| | - Andrea C Bozoki
- From the Department of Neurosciences (D.G.C., I.L., D.G.), University of California San Diego; Clinical Laboratory (K.R.M., J.S.M.), Amprion Inc., La Jolla, CA; Department of Neurology (A.C.B.), University of North Carolina, Chapel Hill, NC; Department of Neurology (J.E.G.), University of Miami, FL; Department of Neurology (D.J.I.), University of Pennsylvania, Philadelphia; Department of Neurology (C.F.L.), Thomas Jefferson University, Philadelphia, PA; Department of Neurology (O.L.L., S.B.), University of Pittsburgh, PA; Department of Neurology (D.W.T., C.P.Z.), University of Washington and Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA; Department of Neurology (L.S.H., K.S.M.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (J.E.F.), Rush University, Chicago, IL; Department of Neurology (M.S.), Barrow Neurological Institute, AZ; Department of Neurology (D.W., L.B., J.B.L.), Cleveland Clinic, OH; and Lewy Body Dementia Association (A.S.T.), Lilburn, GA
| | - James E Galvin
- From the Department of Neurosciences (D.G.C., I.L., D.G.), University of California San Diego; Clinical Laboratory (K.R.M., J.S.M.), Amprion Inc., La Jolla, CA; Department of Neurology (A.C.B.), University of North Carolina, Chapel Hill, NC; Department of Neurology (J.E.G.), University of Miami, FL; Department of Neurology (D.J.I.), University of Pennsylvania, Philadelphia; Department of Neurology (C.F.L.), Thomas Jefferson University, Philadelphia, PA; Department of Neurology (O.L.L., S.B.), University of Pittsburgh, PA; Department of Neurology (D.W.T., C.P.Z.), University of Washington and Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA; Department of Neurology (L.S.H., K.S.M.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (J.E.F.), Rush University, Chicago, IL; Department of Neurology (M.S.), Barrow Neurological Institute, AZ; Department of Neurology (D.W., L.B., J.B.L.), Cleveland Clinic, OH; and Lewy Body Dementia Association (A.S.T.), Lilburn, GA
| | - David J Irwin
- From the Department of Neurosciences (D.G.C., I.L., D.G.), University of California San Diego; Clinical Laboratory (K.R.M., J.S.M.), Amprion Inc., La Jolla, CA; Department of Neurology (A.C.B.), University of North Carolina, Chapel Hill, NC; Department of Neurology (J.E.G.), University of Miami, FL; Department of Neurology (D.J.I.), University of Pennsylvania, Philadelphia; Department of Neurology (C.F.L.), Thomas Jefferson University, Philadelphia, PA; Department of Neurology (O.L.L., S.B.), University of Pittsburgh, PA; Department of Neurology (D.W.T., C.P.Z.), University of Washington and Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA; Department of Neurology (L.S.H., K.S.M.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (J.E.F.), Rush University, Chicago, IL; Department of Neurology (M.S.), Barrow Neurological Institute, AZ; Department of Neurology (D.W., L.B., J.B.L.), Cleveland Clinic, OH; and Lewy Body Dementia Association (A.S.T.), Lilburn, GA
| | - Carol F Lippa
- From the Department of Neurosciences (D.G.C., I.L., D.G.), University of California San Diego; Clinical Laboratory (K.R.M., J.S.M.), Amprion Inc., La Jolla, CA; Department of Neurology (A.C.B.), University of North Carolina, Chapel Hill, NC; Department of Neurology (J.E.G.), University of Miami, FL; Department of Neurology (D.J.I.), University of Pennsylvania, Philadelphia; Department of Neurology (C.F.L.), Thomas Jefferson University, Philadelphia, PA; Department of Neurology (O.L.L., S.B.), University of Pittsburgh, PA; Department of Neurology (D.W.T., C.P.Z.), University of Washington and Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA; Department of Neurology (L.S.H., K.S.M.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (J.E.F.), Rush University, Chicago, IL; Department of Neurology (M.S.), Barrow Neurological Institute, AZ; Department of Neurology (D.W., L.B., J.B.L.), Cleveland Clinic, OH; and Lewy Body Dementia Association (A.S.T.), Lilburn, GA
| | - Irene Litvan
- From the Department of Neurosciences (D.G.C., I.L., D.G.), University of California San Diego; Clinical Laboratory (K.R.M., J.S.M.), Amprion Inc., La Jolla, CA; Department of Neurology (A.C.B.), University of North Carolina, Chapel Hill, NC; Department of Neurology (J.E.G.), University of Miami, FL; Department of Neurology (D.J.I.), University of Pennsylvania, Philadelphia; Department of Neurology (C.F.L.), Thomas Jefferson University, Philadelphia, PA; Department of Neurology (O.L.L., S.B.), University of Pittsburgh, PA; Department of Neurology (D.W.T., C.P.Z.), University of Washington and Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA; Department of Neurology (L.S.H., K.S.M.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (J.E.F.), Rush University, Chicago, IL; Department of Neurology (M.S.), Barrow Neurological Institute, AZ; Department of Neurology (D.W., L.B., J.B.L.), Cleveland Clinic, OH; and Lewy Body Dementia Association (A.S.T.), Lilburn, GA
| | - Oscar L Lopez
- From the Department of Neurosciences (D.G.C., I.L., D.G.), University of California San Diego; Clinical Laboratory (K.R.M., J.S.M.), Amprion Inc., La Jolla, CA; Department of Neurology (A.C.B.), University of North Carolina, Chapel Hill, NC; Department of Neurology (J.E.G.), University of Miami, FL; Department of Neurology (D.J.I.), University of Pennsylvania, Philadelphia; Department of Neurology (C.F.L.), Thomas Jefferson University, Philadelphia, PA; Department of Neurology (O.L.L., S.B.), University of Pittsburgh, PA; Department of Neurology (D.W.T., C.P.Z.), University of Washington and Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA; Department of Neurology (L.S.H., K.S.M.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (J.E.F.), Rush University, Chicago, IL; Department of Neurology (M.S.), Barrow Neurological Institute, AZ; Department of Neurology (D.W., L.B., J.B.L.), Cleveland Clinic, OH; and Lewy Body Dementia Association (A.S.T.), Lilburn, GA
| | - Sarah Berman
- From the Department of Neurosciences (D.G.C., I.L., D.G.), University of California San Diego; Clinical Laboratory (K.R.M., J.S.M.), Amprion Inc., La Jolla, CA; Department of Neurology (A.C.B.), University of North Carolina, Chapel Hill, NC; Department of Neurology (J.E.G.), University of Miami, FL; Department of Neurology (D.J.I.), University of Pennsylvania, Philadelphia; Department of Neurology (C.F.L.), Thomas Jefferson University, Philadelphia, PA; Department of Neurology (O.L.L., S.B.), University of Pittsburgh, PA; Department of Neurology (D.W.T., C.P.Z.), University of Washington and Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA; Department of Neurology (L.S.H., K.S.M.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (J.E.F.), Rush University, Chicago, IL; Department of Neurology (M.S.), Barrow Neurological Institute, AZ; Department of Neurology (D.W., L.B., J.B.L.), Cleveland Clinic, OH; and Lewy Body Dementia Association (A.S.T.), Lilburn, GA
| | - Debby W Tsuang
- From the Department of Neurosciences (D.G.C., I.L., D.G.), University of California San Diego; Clinical Laboratory (K.R.M., J.S.M.), Amprion Inc., La Jolla, CA; Department of Neurology (A.C.B.), University of North Carolina, Chapel Hill, NC; Department of Neurology (J.E.G.), University of Miami, FL; Department of Neurology (D.J.I.), University of Pennsylvania, Philadelphia; Department of Neurology (C.F.L.), Thomas Jefferson University, Philadelphia, PA; Department of Neurology (O.L.L., S.B.), University of Pittsburgh, PA; Department of Neurology (D.W.T., C.P.Z.), University of Washington and Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA; Department of Neurology (L.S.H., K.S.M.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (J.E.F.), Rush University, Chicago, IL; Department of Neurology (M.S.), Barrow Neurological Institute, AZ; Department of Neurology (D.W., L.B., J.B.L.), Cleveland Clinic, OH; and Lewy Body Dementia Association (A.S.T.), Lilburn, GA
| | - Cyrus P Zabetian
- From the Department of Neurosciences (D.G.C., I.L., D.G.), University of California San Diego; Clinical Laboratory (K.R.M., J.S.M.), Amprion Inc., La Jolla, CA; Department of Neurology (A.C.B.), University of North Carolina, Chapel Hill, NC; Department of Neurology (J.E.G.), University of Miami, FL; Department of Neurology (D.J.I.), University of Pennsylvania, Philadelphia; Department of Neurology (C.F.L.), Thomas Jefferson University, Philadelphia, PA; Department of Neurology (O.L.L., S.B.), University of Pittsburgh, PA; Department of Neurology (D.W.T., C.P.Z.), University of Washington and Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA; Department of Neurology (L.S.H., K.S.M.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (J.E.F.), Rush University, Chicago, IL; Department of Neurology (M.S.), Barrow Neurological Institute, AZ; Department of Neurology (D.W., L.B., J.B.L.), Cleveland Clinic, OH; and Lewy Body Dementia Association (A.S.T.), Lilburn, GA
| | - Lawrence S Honig
- From the Department of Neurosciences (D.G.C., I.L., D.G.), University of California San Diego; Clinical Laboratory (K.R.M., J.S.M.), Amprion Inc., La Jolla, CA; Department of Neurology (A.C.B.), University of North Carolina, Chapel Hill, NC; Department of Neurology (J.E.G.), University of Miami, FL; Department of Neurology (D.J.I.), University of Pennsylvania, Philadelphia; Department of Neurology (C.F.L.), Thomas Jefferson University, Philadelphia, PA; Department of Neurology (O.L.L., S.B.), University of Pittsburgh, PA; Department of Neurology (D.W.T., C.P.Z.), University of Washington and Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA; Department of Neurology (L.S.H., K.S.M.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (J.E.F.), Rush University, Chicago, IL; Department of Neurology (M.S.), Barrow Neurological Institute, AZ; Department of Neurology (D.W., L.B., J.B.L.), Cleveland Clinic, OH; and Lewy Body Dementia Association (A.S.T.), Lilburn, GA
| | - Karen S Marder
- From the Department of Neurosciences (D.G.C., I.L., D.G.), University of California San Diego; Clinical Laboratory (K.R.M., J.S.M.), Amprion Inc., La Jolla, CA; Department of Neurology (A.C.B.), University of North Carolina, Chapel Hill, NC; Department of Neurology (J.E.G.), University of Miami, FL; Department of Neurology (D.J.I.), University of Pennsylvania, Philadelphia; Department of Neurology (C.F.L.), Thomas Jefferson University, Philadelphia, PA; Department of Neurology (O.L.L., S.B.), University of Pittsburgh, PA; Department of Neurology (D.W.T., C.P.Z.), University of Washington and Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA; Department of Neurology (L.S.H., K.S.M.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (J.E.F.), Rush University, Chicago, IL; Department of Neurology (M.S.), Barrow Neurological Institute, AZ; Department of Neurology (D.W., L.B., J.B.L.), Cleveland Clinic, OH; and Lewy Body Dementia Association (A.S.T.), Lilburn, GA
| | - Jori E Fleisher
- From the Department of Neurosciences (D.G.C., I.L., D.G.), University of California San Diego; Clinical Laboratory (K.R.M., J.S.M.), Amprion Inc., La Jolla, CA; Department of Neurology (A.C.B.), University of North Carolina, Chapel Hill, NC; Department of Neurology (J.E.G.), University of Miami, FL; Department of Neurology (D.J.I.), University of Pennsylvania, Philadelphia; Department of Neurology (C.F.L.), Thomas Jefferson University, Philadelphia, PA; Department of Neurology (O.L.L., S.B.), University of Pittsburgh, PA; Department of Neurology (D.W.T., C.P.Z.), University of Washington and Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA; Department of Neurology (L.S.H., K.S.M.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (J.E.F.), Rush University, Chicago, IL; Department of Neurology (M.S.), Barrow Neurological Institute, AZ; Department of Neurology (D.W., L.B., J.B.L.), Cleveland Clinic, OH; and Lewy Body Dementia Association (A.S.T.), Lilburn, GA
| | - Marwan Sabbagh
- From the Department of Neurosciences (D.G.C., I.L., D.G.), University of California San Diego; Clinical Laboratory (K.R.M., J.S.M.), Amprion Inc., La Jolla, CA; Department of Neurology (A.C.B.), University of North Carolina, Chapel Hill, NC; Department of Neurology (J.E.G.), University of Miami, FL; Department of Neurology (D.J.I.), University of Pennsylvania, Philadelphia; Department of Neurology (C.F.L.), Thomas Jefferson University, Philadelphia, PA; Department of Neurology (O.L.L., S.B.), University of Pittsburgh, PA; Department of Neurology (D.W.T., C.P.Z.), University of Washington and Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA; Department of Neurology (L.S.H., K.S.M.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (J.E.F.), Rush University, Chicago, IL; Department of Neurology (M.S.), Barrow Neurological Institute, AZ; Department of Neurology (D.W., L.B., J.B.L.), Cleveland Clinic, OH; and Lewy Body Dementia Association (A.S.T.), Lilburn, GA
| | - Dylan Wint
- From the Department of Neurosciences (D.G.C., I.L., D.G.), University of California San Diego; Clinical Laboratory (K.R.M., J.S.M.), Amprion Inc., La Jolla, CA; Department of Neurology (A.C.B.), University of North Carolina, Chapel Hill, NC; Department of Neurology (J.E.G.), University of Miami, FL; Department of Neurology (D.J.I.), University of Pennsylvania, Philadelphia; Department of Neurology (C.F.L.), Thomas Jefferson University, Philadelphia, PA; Department of Neurology (O.L.L., S.B.), University of Pittsburgh, PA; Department of Neurology (D.W.T., C.P.Z.), University of Washington and Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA; Department of Neurology (L.S.H., K.S.M.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (J.E.F.), Rush University, Chicago, IL; Department of Neurology (M.S.), Barrow Neurological Institute, AZ; Department of Neurology (D.W., L.B., J.B.L.), Cleveland Clinic, OH; and Lewy Body Dementia Association (A.S.T.), Lilburn, GA
| | - Angela S Taylor
- From the Department of Neurosciences (D.G.C., I.L., D.G.), University of California San Diego; Clinical Laboratory (K.R.M., J.S.M.), Amprion Inc., La Jolla, CA; Department of Neurology (A.C.B.), University of North Carolina, Chapel Hill, NC; Department of Neurology (J.E.G.), University of Miami, FL; Department of Neurology (D.J.I.), University of Pennsylvania, Philadelphia; Department of Neurology (C.F.L.), Thomas Jefferson University, Philadelphia, PA; Department of Neurology (O.L.L., S.B.), University of Pittsburgh, PA; Department of Neurology (D.W.T., C.P.Z.), University of Washington and Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA; Department of Neurology (L.S.H., K.S.M.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (J.E.F.), Rush University, Chicago, IL; Department of Neurology (M.S.), Barrow Neurological Institute, AZ; Department of Neurology (D.W., L.B., J.B.L.), Cleveland Clinic, OH; and Lewy Body Dementia Association (A.S.T.), Lilburn, GA
| | - Lynn Bekris
- From the Department of Neurosciences (D.G.C., I.L., D.G.), University of California San Diego; Clinical Laboratory (K.R.M., J.S.M.), Amprion Inc., La Jolla, CA; Department of Neurology (A.C.B.), University of North Carolina, Chapel Hill, NC; Department of Neurology (J.E.G.), University of Miami, FL; Department of Neurology (D.J.I.), University of Pennsylvania, Philadelphia; Department of Neurology (C.F.L.), Thomas Jefferson University, Philadelphia, PA; Department of Neurology (O.L.L., S.B.), University of Pittsburgh, PA; Department of Neurology (D.W.T., C.P.Z.), University of Washington and Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA; Department of Neurology (L.S.H., K.S.M.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (J.E.F.), Rush University, Chicago, IL; Department of Neurology (M.S.), Barrow Neurological Institute, AZ; Department of Neurology (D.W., L.B., J.B.L.), Cleveland Clinic, OH; and Lewy Body Dementia Association (A.S.T.), Lilburn, GA
| | - James B Leverenz
- From the Department of Neurosciences (D.G.C., I.L., D.G.), University of California San Diego; Clinical Laboratory (K.R.M., J.S.M.), Amprion Inc., La Jolla, CA; Department of Neurology (A.C.B.), University of North Carolina, Chapel Hill, NC; Department of Neurology (J.E.G.), University of Miami, FL; Department of Neurology (D.J.I.), University of Pennsylvania, Philadelphia; Department of Neurology (C.F.L.), Thomas Jefferson University, Philadelphia, PA; Department of Neurology (O.L.L., S.B.), University of Pittsburgh, PA; Department of Neurology (D.W.T., C.P.Z.), University of Washington and Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA; Department of Neurology (L.S.H., K.S.M.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (J.E.F.), Rush University, Chicago, IL; Department of Neurology (M.S.), Barrow Neurological Institute, AZ; Department of Neurology (D.W., L.B., J.B.L.), Cleveland Clinic, OH; and Lewy Body Dementia Association (A.S.T.), Lilburn, GA
| | - Douglas Galasko
- From the Department of Neurosciences (D.G.C., I.L., D.G.), University of California San Diego; Clinical Laboratory (K.R.M., J.S.M.), Amprion Inc., La Jolla, CA; Department of Neurology (A.C.B.), University of North Carolina, Chapel Hill, NC; Department of Neurology (J.E.G.), University of Miami, FL; Department of Neurology (D.J.I.), University of Pennsylvania, Philadelphia; Department of Neurology (C.F.L.), Thomas Jefferson University, Philadelphia, PA; Department of Neurology (O.L.L., S.B.), University of Pittsburgh, PA; Department of Neurology (D.W.T., C.P.Z.), University of Washington and Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA; Department of Neurology (L.S.H., K.S.M.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (J.E.F.), Rush University, Chicago, IL; Department of Neurology (M.S.), Barrow Neurological Institute, AZ; Department of Neurology (D.W., L.B., J.B.L.), Cleveland Clinic, OH; and Lewy Body Dementia Association (A.S.T.), Lilburn, GA
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Wyman-Chick KA, Barrett MJ, Miller MJ, Kuntz JL, Chrenka EA, Rossom RC. Factors Associated With Increased Health Care Utilization for Patients With Dementia With Lewy Bodies: A Narrative Review. J Patient Cent Res Rev 2024; 11:97-106. [PMID: 39044852 PMCID: PMC11262839 DOI: 10.17294/2330-0698.2059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2024] Open
Abstract
Numerous studies have demonstrated that dementia is associated with increased utilization of health care services, which in turn results in increased costs of care. Dementia with Lewy bodies (DLB) is associated with greater costs of care relative to other forms of dementia due to higher rates of hospitalization and nursing home placement directly related to neuropsychiatric symptoms, parkinsonism, increased susceptibility to delirium, and elevated rates of caregiver burden. There is a critical need for researchers to identify potentially modifiable factors contributing to increased costs of care and poor clinical outcomes for patients with DLB, which may include comorbidities, polypharmacy/contraindicated medications, and access to specialty care. Previous research has utilized Medicare claims data, limiting the ability to study patients with early-onset (ie, prior to age 65) DLB. Integrated health systems offer the ability to combine electronic medical record data with Medicare, Medicaid, and commercial claims data and may therefore be ideal for utilization research in this population. The goals of this narrative review are to 1) synthesize and describe the current literature on health care utilization studies for patients with DLB, 2) highlight the current gaps in the literature, and 3) provide recommendations for stakeholders, including researchers, health systems, and policymakers. It is important to improve current understanding of potentially modifiable factors associated with increased costs of care among patients with DLB to inform public health policies and clinical decision-making, as this will ultimately improve the quality of patient care.
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Affiliation(s)
- Kathryn A. Wyman-Chick
- Neuropsychology, HealthPartners, St. Paul, MN
- Center for Memory and Aging, HealthPartners Institute, Minneapolis, MN
| | | | | | | | - Ella A. Chrenka
- Center for Memory and Aging, HealthPartners Institute, Minneapolis, MN
| | - Rebecca C. Rossom
- Center for Memory and Aging, HealthPartners Institute, Minneapolis, MN
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4
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Armstrong MJ, Dai Y, Sovich K, LaBarre B, Paulson HL, Maixner SM, Fields JA, Lunde AM, Forsberg LK, Boeve BF, Manning CA, Galvin JE, Taylor AS, Li Z. Caregiver Experiences and Burden in Moderate-Advanced Dementia With Lewy Bodies. Neurol Clin Pract 2024; 14:e200292. [PMID: 38617555 PMCID: PMC11014644 DOI: 10.1212/cpj.0000000000200292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 01/23/2024] [Indexed: 04/16/2024]
Abstract
Background and Objectives Dementia with Lewy bodies (DLB) is a common degenerative dementia, but research on caregiver experiences in late stages is lacking. This study aimed to investigate the caregiving experience in moderate-advanced DLB to identify opportunities for improving care and support. Methods Dyads of individuals with moderate-advanced DLB and their primary informal caregivers were recruited from specialty clinics, advocacy organizations, and research registries. The study collected demographics, disease-related measures, and measures of the caregiver experience relating to caregiver support, burden, grief, self-efficacy, depression, quality of life, and coping. Spearman correlation coefficients and Wilcoxon rank-sum tests evaluated the relationships of caregiver measures with patient and caregiver variables with adjustments for multiple testing. Results Caregivers (n = 143) were mostly women (83.5%) and spouses (84.7%) (mean age 68 years; range 37-85). Almost 40% reported high burden and/or depression. Caregiver measures correlated with fluctuation and behavioral symptom severity, sleepiness, and autonomic symptoms of the person with DLB. Higher burden correlated with worse caregiver quality of life, higher depression, and grief. Greater self-efficacy, social support, and resilience correlated with lower caregiver burden. The most frequently reported caregiver concerns were being unable to plan for the future, having to put the needs of the person with DLB ahead of the caregiver's own needs, and worry that the person with DLB would become too dependent on the caregiver, but many additional concerns were endorsed. Caregivers were generally satisfied with medical team support. The lowest reported satisfaction related to information regarding disease progression and how well medical teams shared information with each other. Discussion Various patient-related and caregiver-related factors influence caregiver experiences in moderate-advanced DLB. Clinicians can target caregiver needs by providing support resources and DLB education and treating bothersome patient symptoms. Future research should investigate what interventions can modify and improve caregiver experiences in advanced DLB and identify therapeutics for patient symptoms currently without adequate treatments (e.g., fluctuations, daytime sleepiness). Trial Registration Information NCT04829656.
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Affiliation(s)
- Melissa J Armstrong
- Department of Neurology (MJA, KS), University of Florida College of Medicine; Norman Fixel Institute for Neurological Diseases (MJA); Department of Biostatistics (YD, BL, ZL), University of Florida College of Medicine, Gainesville; Departments of Neurology (HLP) and Psychiatry (SMM), University of Michigan, Ann Arbor; Departments of Psychiatry and Psychology (JAF) and Neurology (AML, LKF, BFB), Mayo Clinic Rochester, MN; Department of Neurology (CAM), University of Virginia, Charlottesville; Comprehensive Center for Brain Health (JEG), Department of Neurology, University of Miami Miller School of Medicine, FL; and Lewy Body Dementia Association (AST), Lilburn, GA
| | - Yunfeng Dai
- Department of Neurology (MJA, KS), University of Florida College of Medicine; Norman Fixel Institute for Neurological Diseases (MJA); Department of Biostatistics (YD, BL, ZL), University of Florida College of Medicine, Gainesville; Departments of Neurology (HLP) and Psychiatry (SMM), University of Michigan, Ann Arbor; Departments of Psychiatry and Psychology (JAF) and Neurology (AML, LKF, BFB), Mayo Clinic Rochester, MN; Department of Neurology (CAM), University of Virginia, Charlottesville; Comprehensive Center for Brain Health (JEG), Department of Neurology, University of Miami Miller School of Medicine, FL; and Lewy Body Dementia Association (AST), Lilburn, GA
| | - Kaitlin Sovich
- Department of Neurology (MJA, KS), University of Florida College of Medicine; Norman Fixel Institute for Neurological Diseases (MJA); Department of Biostatistics (YD, BL, ZL), University of Florida College of Medicine, Gainesville; Departments of Neurology (HLP) and Psychiatry (SMM), University of Michigan, Ann Arbor; Departments of Psychiatry and Psychology (JAF) and Neurology (AML, LKF, BFB), Mayo Clinic Rochester, MN; Department of Neurology (CAM), University of Virginia, Charlottesville; Comprehensive Center for Brain Health (JEG), Department of Neurology, University of Miami Miller School of Medicine, FL; and Lewy Body Dementia Association (AST), Lilburn, GA
| | - Brian LaBarre
- Department of Neurology (MJA, KS), University of Florida College of Medicine; Norman Fixel Institute for Neurological Diseases (MJA); Department of Biostatistics (YD, BL, ZL), University of Florida College of Medicine, Gainesville; Departments of Neurology (HLP) and Psychiatry (SMM), University of Michigan, Ann Arbor; Departments of Psychiatry and Psychology (JAF) and Neurology (AML, LKF, BFB), Mayo Clinic Rochester, MN; Department of Neurology (CAM), University of Virginia, Charlottesville; Comprehensive Center for Brain Health (JEG), Department of Neurology, University of Miami Miller School of Medicine, FL; and Lewy Body Dementia Association (AST), Lilburn, GA
| | - Henry L Paulson
- Department of Neurology (MJA, KS), University of Florida College of Medicine; Norman Fixel Institute for Neurological Diseases (MJA); Department of Biostatistics (YD, BL, ZL), University of Florida College of Medicine, Gainesville; Departments of Neurology (HLP) and Psychiatry (SMM), University of Michigan, Ann Arbor; Departments of Psychiatry and Psychology (JAF) and Neurology (AML, LKF, BFB), Mayo Clinic Rochester, MN; Department of Neurology (CAM), University of Virginia, Charlottesville; Comprehensive Center for Brain Health (JEG), Department of Neurology, University of Miami Miller School of Medicine, FL; and Lewy Body Dementia Association (AST), Lilburn, GA
| | - Susan M Maixner
- Department of Neurology (MJA, KS), University of Florida College of Medicine; Norman Fixel Institute for Neurological Diseases (MJA); Department of Biostatistics (YD, BL, ZL), University of Florida College of Medicine, Gainesville; Departments of Neurology (HLP) and Psychiatry (SMM), University of Michigan, Ann Arbor; Departments of Psychiatry and Psychology (JAF) and Neurology (AML, LKF, BFB), Mayo Clinic Rochester, MN; Department of Neurology (CAM), University of Virginia, Charlottesville; Comprehensive Center for Brain Health (JEG), Department of Neurology, University of Miami Miller School of Medicine, FL; and Lewy Body Dementia Association (AST), Lilburn, GA
| | - Julie A Fields
- Department of Neurology (MJA, KS), University of Florida College of Medicine; Norman Fixel Institute for Neurological Diseases (MJA); Department of Biostatistics (YD, BL, ZL), University of Florida College of Medicine, Gainesville; Departments of Neurology (HLP) and Psychiatry (SMM), University of Michigan, Ann Arbor; Departments of Psychiatry and Psychology (JAF) and Neurology (AML, LKF, BFB), Mayo Clinic Rochester, MN; Department of Neurology (CAM), University of Virginia, Charlottesville; Comprehensive Center for Brain Health (JEG), Department of Neurology, University of Miami Miller School of Medicine, FL; and Lewy Body Dementia Association (AST), Lilburn, GA
| | - Angela M Lunde
- Department of Neurology (MJA, KS), University of Florida College of Medicine; Norman Fixel Institute for Neurological Diseases (MJA); Department of Biostatistics (YD, BL, ZL), University of Florida College of Medicine, Gainesville; Departments of Neurology (HLP) and Psychiatry (SMM), University of Michigan, Ann Arbor; Departments of Psychiatry and Psychology (JAF) and Neurology (AML, LKF, BFB), Mayo Clinic Rochester, MN; Department of Neurology (CAM), University of Virginia, Charlottesville; Comprehensive Center for Brain Health (JEG), Department of Neurology, University of Miami Miller School of Medicine, FL; and Lewy Body Dementia Association (AST), Lilburn, GA
| | - Leah K Forsberg
- Department of Neurology (MJA, KS), University of Florida College of Medicine; Norman Fixel Institute for Neurological Diseases (MJA); Department of Biostatistics (YD, BL, ZL), University of Florida College of Medicine, Gainesville; Departments of Neurology (HLP) and Psychiatry (SMM), University of Michigan, Ann Arbor; Departments of Psychiatry and Psychology (JAF) and Neurology (AML, LKF, BFB), Mayo Clinic Rochester, MN; Department of Neurology (CAM), University of Virginia, Charlottesville; Comprehensive Center for Brain Health (JEG), Department of Neurology, University of Miami Miller School of Medicine, FL; and Lewy Body Dementia Association (AST), Lilburn, GA
| | - Bradley F Boeve
- Department of Neurology (MJA, KS), University of Florida College of Medicine; Norman Fixel Institute for Neurological Diseases (MJA); Department of Biostatistics (YD, BL, ZL), University of Florida College of Medicine, Gainesville; Departments of Neurology (HLP) and Psychiatry (SMM), University of Michigan, Ann Arbor; Departments of Psychiatry and Psychology (JAF) and Neurology (AML, LKF, BFB), Mayo Clinic Rochester, MN; Department of Neurology (CAM), University of Virginia, Charlottesville; Comprehensive Center for Brain Health (JEG), Department of Neurology, University of Miami Miller School of Medicine, FL; and Lewy Body Dementia Association (AST), Lilburn, GA
| | - Carol A Manning
- Department of Neurology (MJA, KS), University of Florida College of Medicine; Norman Fixel Institute for Neurological Diseases (MJA); Department of Biostatistics (YD, BL, ZL), University of Florida College of Medicine, Gainesville; Departments of Neurology (HLP) and Psychiatry (SMM), University of Michigan, Ann Arbor; Departments of Psychiatry and Psychology (JAF) and Neurology (AML, LKF, BFB), Mayo Clinic Rochester, MN; Department of Neurology (CAM), University of Virginia, Charlottesville; Comprehensive Center for Brain Health (JEG), Department of Neurology, University of Miami Miller School of Medicine, FL; and Lewy Body Dementia Association (AST), Lilburn, GA
| | - James E Galvin
- Department of Neurology (MJA, KS), University of Florida College of Medicine; Norman Fixel Institute for Neurological Diseases (MJA); Department of Biostatistics (YD, BL, ZL), University of Florida College of Medicine, Gainesville; Departments of Neurology (HLP) and Psychiatry (SMM), University of Michigan, Ann Arbor; Departments of Psychiatry and Psychology (JAF) and Neurology (AML, LKF, BFB), Mayo Clinic Rochester, MN; Department of Neurology (CAM), University of Virginia, Charlottesville; Comprehensive Center for Brain Health (JEG), Department of Neurology, University of Miami Miller School of Medicine, FL; and Lewy Body Dementia Association (AST), Lilburn, GA
| | - Angela S Taylor
- Department of Neurology (MJA, KS), University of Florida College of Medicine; Norman Fixel Institute for Neurological Diseases (MJA); Department of Biostatistics (YD, BL, ZL), University of Florida College of Medicine, Gainesville; Departments of Neurology (HLP) and Psychiatry (SMM), University of Michigan, Ann Arbor; Departments of Psychiatry and Psychology (JAF) and Neurology (AML, LKF, BFB), Mayo Clinic Rochester, MN; Department of Neurology (CAM), University of Virginia, Charlottesville; Comprehensive Center for Brain Health (JEG), Department of Neurology, University of Miami Miller School of Medicine, FL; and Lewy Body Dementia Association (AST), Lilburn, GA
| | - Zhigang Li
- Department of Neurology (MJA, KS), University of Florida College of Medicine; Norman Fixel Institute for Neurological Diseases (MJA); Department of Biostatistics (YD, BL, ZL), University of Florida College of Medicine, Gainesville; Departments of Neurology (HLP) and Psychiatry (SMM), University of Michigan, Ann Arbor; Departments of Psychiatry and Psychology (JAF) and Neurology (AML, LKF, BFB), Mayo Clinic Rochester, MN; Department of Neurology (CAM), University of Virginia, Charlottesville; Comprehensive Center for Brain Health (JEG), Department of Neurology, University of Miami Miller School of Medicine, FL; and Lewy Body Dementia Association (AST), Lilburn, GA
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O’Shea DM, Arkhipenko A, Galasko D, Goldman JG, Sheikh ZH, Petrides G, Toledo JB, Galvin JE. Practical use of DAT SPECT imaging in diagnosing dementia with Lewy bodies: a US perspective of current guidelines and future directions. Front Neurol 2024; 15:1395413. [PMID: 38711561 PMCID: PMC11073567 DOI: 10.3389/fneur.2024.1395413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Accepted: 03/25/2024] [Indexed: 05/08/2024] Open
Abstract
Background Diagnosing Dementia with Lewy Bodies (DLB) remains a challenge in clinical practice. The use of 123I-ioflupane (DaTscan™) SPECT imaging, which detects reduced dopamine transporter (DAT) uptake-a key biomarker in DLB diagnosis-could improve diagnostic accuracy. However, DAT imaging is underutilized despite its potential, contributing to delays and suboptimal patient management. Methods This review evaluates DLB diagnostic practices and challenges faced within the U.S. by synthesizing information from current literature, consensus guidelines, expert opinions, and recent updates on DaTscan FDA filings. It contrasts DAT SPECT with alternative biomarkers, provides recommendations for when DAT SPECT imaging may be indicated and discusses the potential of emerging biomarkers in enhancing diagnostic approaches. Results The radiopharmaceutical 123I-ioflupane for SPECT imaging was initially approved in Europe (2000) and later in the US (2011) for Parkinsonism/Essential Tremor. Its application was extended in 2022 to include the diagnosis of DLB. DaTscan's diagnostic efficacy for DLB, with its sensitivity, specificity, and predictive values, confirms its clinical utility. However, US implementation faces challenges such as insurance barriers, costs, access issues, and regional availability disparities. Conclusion 123I-ioflupane SPECT Imaging is indicated for DLB diagnosis and differential diagnosis of Alzheimer's Disease, particularly in uncertain cases. Addressing diagnostic obstacles and enhancing physician-patient education could improve and expedite DLB diagnosis. Collaborative efforts among neurologists, geriatric psychiatrists, psychologists, and memory clinic staff are key to increasing diagnostic accuracy and care in DLB management.
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Affiliation(s)
- Deirdre M. O’Shea
- Department of Neurology, Comprehensive Center for Brain Health, University of Miami, Miller School of Medicine, Coral Gables, FL, United States
| | | | - Douglas Galasko
- Department of Neurosciences, UC San Diego, San Diego, CA, United States
| | - Jennifer G. Goldman
- JPG Enterprises LLC, Chicago, IL, United States
- Barrow Neurological Institute, Phoenix, AZ, United States
| | | | - George Petrides
- Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom
| | - Jon B. Toledo
- Nantz National Alzheimer Center, Stanley Appel Department of Neurology, Houston Methodist Hospital, Houston, TX, United States
| | - James E. Galvin
- Department of Neurology, Comprehensive Center for Brain Health, University of Miami, Miller School of Medicine, Coral Gables, FL, United States
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Dodel R, Berg D, Duning T, Kalbe E, Meyer PT, Ramirez A, Storch A, Aarsland D, Jessen F. [Dementia with Lewy bodies: old and new knowledge - Part 1: clinical aspects and diagnostics]. DER NERVENARZT 2024; 95:353-361. [PMID: 38092983 PMCID: PMC11014876 DOI: 10.1007/s00115-023-01576-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 10/26/2023] [Indexed: 04/13/2024]
Abstract
BACKGROUND Dementia with Lewy bodies (DLB) is the second most common neurodegenerative dementia after Alzheimer's disease. Patients with DLB often have a poor prognosis, with worse outcomes than patients with Alzheimer's disease in terms of important parameters, such as quality of life, caregiver burden, health-related costs, frequency of hospital and nursing home admissions, shorter time to severe dementia, and lower survival. The DLB is frequently misdiagnosed and often undertreated. Therefore, it is critical to diagnose DLB as early as possible to ensure optimal care and treatment. OBJECTIVE The aim of this review article is to summarize the main recent findings on diagnostic tools, epidemiology and genetics of DLB. RESULTS Precise clinical diagnostic criteria exist for DLB that enable an etiologic assignment. Imaging techniques are used as standard in DLB, especially also to exclude non-neurodegenerative causes. In particular, procedures in nuclear medicine have a high diagnostic value. DISCUSSION The diagnosis is primarily based on clinical symptoms, although the development of in vivo neuroimaging and biomarkers is changing the scope of clinical diagnosis as well as research into this devastating disease.
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Affiliation(s)
- Richard Dodel
- Lehrstuhl für Geriatrie, Universität Duisburg-Essen, Virchowstraße 171, 45147, Essen, Deutschland.
| | - Daniela Berg
- Neurologische Klinik, Universität Kiel, Kiel, Deutschland
| | - Thomas Duning
- Neurologische Klinik, Universität Münster, Münster, Deutschland
| | - Elke Kalbe
- Medizinische Psychologie, Neuropsychologie und Gender Studies & Centrum für Neuropsychologische Diagnostik und Intervention (CeNDI), Universität Köln, Köln, Deutschland
| | - Philipp T Meyer
- Klinik für Nuklearmedizin, Universitätsklinikum Freiburg, Medizinische Fakultät, Albert-Ludwigs-Universität Freiburg, Freiburg, Deutschland
| | - Alfredo Ramirez
- Klinik und Poliklinik für Psychiatrie und Psychotherapie, Universität Köln, Köln, Deutschland
| | - Alexander Storch
- Klinik für Neurologie, Universität Rostock, Rostock, Deutschland
| | - Dag Aarsland
- Centre for Age-Related Medicine (SESAM), Stavanger University Hospital, Stavanger, Norwegen
- Institute of Psychiatry, Psychology, and Neuroscience, King's College London, London, Großbritannien
| | - Frank Jessen
- Klinik und Poliklinik für Psychiatrie und Psychotherapie, Universität Köln, Köln, Deutschland
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Armstrong MJ, LaBarre B, Sovich K, Maixner SM, Paulson HL, Manning C, Fields JA, Lunde A, Forsberg L, Boeve BF, Galvin JE, Taylor AS, Li Z. Patient- and proxy-reported quality of life in advanced dementia with Lewy bodies. Alzheimers Dement 2024; 20:2719-2730. [PMID: 38400528 PMCID: PMC11032544 DOI: 10.1002/alz.13745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 01/23/2024] [Accepted: 01/24/2024] [Indexed: 02/25/2024]
Abstract
INTRODUCTION Little is known regarding quality of life (QoL) in dementia with Lewy bodies (DLB), particularly in advanced stages. METHODS Dyads of individuals with moderate-advanced DLB and their primary caregivers were recruited from specialty clinics, advocacy organizations, and research registries. The study collected demographics, disease-related measures, and measures of patient/caregiver experiences. RESULTS The Quality of Life in Alzheimer's Disease (QoL-AD) was completed by the person with DLB and the caregiver (proxy) in 61 dyads; 85 dyads had only a proxy-completed QoL-AD. Patient- and proxy-reported scores were moderately correlated (r = 0.57, P < 0.0001). Worse patient-reported QoL correlated with daytime sleepiness, autonomic symptom burden, and behavioral symptoms. Proxy ratings correlated with dementia severity, daytime sleepiness, behavioral symptoms, dependence in activities of daily living, and caregiver experience measures. DISCUSSION Patient- and proxy-reported quality of life (QoL) should be assessed separately in advanced DLB. Some symptoms associated with QoL have available therapeutic options. Research is needed regarding strategies to optimally improve QoL in DLB. HIGHLIGHTS Patient and proxy quality of life (QoL) ratings had moderate correlation in advanced dementia with Lewy bodies. Daytime sleepiness affected patient- and proxy-reported QoL. Behavioral symptoms affected patient- and proxy-reported QoL. Autonomic symptom burden affected patient-reported QoL. Dementia severity, dependence, and caregiver experiences affected proxy ratings.
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Affiliation(s)
- Melissa J. Armstrong
- Department of NeurologyUniversity of Florida College of MedicineGainesvilleFloridaUSA
- Norman Fixel Institute for Neurological DiseasesGainesvilleFloridaUSA
| | - Brian LaBarre
- Department of BiostatisticsUniversity of Florida College of MedicineGainesvilleFloridaUSA
| | - Kaitlin Sovich
- Department of NeurologyUniversity of Florida College of MedicineGainesvilleFloridaUSA
| | - Susan M. Maixner
- Department of PsychiatryUniversity of MichiganAnn ArborMichiganUSA
| | - Henry L. Paulson
- Department of NeurologyUniversity of MichiganAnn ArborMichiganUSA
| | - Carol Manning
- Department of NeurologyUniversity of VirginiaCharlottesvilleVirginiaUSA
| | - Julie A. Fields
- Department of Psychiatry and PsychologyMayo ClinicRochesterMinnesotaUSA
| | - Angela Lunde
- Department of NeurologyMayo ClinicRochesterMinnesotaUSA
| | - Leah Forsberg
- Department of NeurologyMayo ClinicRochesterMinnesotaUSA
| | | | - James E. Galvin
- Comprehensive Center for Brain HealthDepartment of NeurologyUniversity of Miami Miller School of MedicineMiamiFloridaUSA
| | | | - Zhigang Li
- Department of BiostatisticsUniversity of Florida College of MedicineGainesvilleFloridaUSA
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Park M, Baik K, Sohn YH, Ye BS. Development and Validation of a Screening Questionnaire for Dementia With Lewy Bodies (DLB): the DLB Screening Questionnaire (DLBSQ). Dement Neurocogn Disord 2024; 23:11-21. [PMID: 38362053 PMCID: PMC10864695 DOI: 10.12779/dnd.2024.23.1.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 01/08/2024] [Indexed: 02/17/2024] Open
Abstract
Background and Purpose Although dementia with Lewy bodies (DLB) is the second most common cause of neurodegenerative dementia, its clinical prevalence is low. We developed a short and easy-to-complete DLB screening questionnaire (DLBSQ) to raise diagnostic sensitivity in routine clinical settings. Methods A total of 501 participants were retrospectively enrolled, including 71 controls, 184 patients without DLB, and 246 patients with probable DLB. All patients underwent clinical evaluation, including core features of DLB, the DLBSQ, brain magnetic resonance imaging, and detailed neuropsychological assessments. The diagnostic performance of the DLBSQ for probable DLB was investigated using a receiver operating characteristic curve analysis. Results Total DLBSQ score was associated with visuospatial and frontal/executive dysfunction and the diagnosis of probable DLB. The area under the receiver operating characteristic curve for total DLBSQ score was 0.727. Youden's method revealed an optimal cutoff value of 3. The sensitivity and specificity of the DLBSQ were 68.7% and 62.4%, respectively. Its discriminating performance improved when cognitive test profiles were additionally considered (area under the curve: 0.822, sensitivity: 80.6%, and specificity: 70.4%). Conclusions The DLBSQ might be a useful screening tool for DLB in routine clinical practice with good sensitivity and specificity.
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Affiliation(s)
- Mincheol Park
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
- Department of Neurology, Chung-Ang University College of Medicine and Graduate School of Medicine, Gwangmyeong Hospital, Gwangmyeong, Korea
| | - Kyoungwon Baik
- Department of Neurology, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea
| | - Young H. Sohn
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| | - Byoung Seok Ye
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
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Besser LM, Chrisphonte S, Kleiman MJ, O’Shea D, Rosenfeld A, Tolea M, Galvin JE. The Healthy Brain Initiative (HBI): A prospective cohort study protocol. PLoS One 2023; 18:e0293634. [PMID: 37889891 PMCID: PMC10610524 DOI: 10.1371/journal.pone.0293634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 10/16/2023] [Indexed: 10/29/2023] Open
Abstract
BACKGROUND The Health Brain Initiative (HBI), established by University of Miami's Comprehensive Center for Brain Health (CCBH), follows racially/ethnically diverse older adults without dementia living in South Florida. With dementia prevention and brain health promotion as an overarching goal, HBI will advance scientific knowledge by developing novel assessments and non-invasive biomarkers of Alzheimer's disease and related dementias (ADRD), examining additive effects of sociodemographic, lifestyle, neurological and biobehavioral measures, and employing innovative, methodologically advanced modeling methods to characterize ADRD risk and resilience factors and transition of brain aging. METHODS HBI is a longitudinal, observational cohort study that will follow 500 deeply-phenotyped participants annually to collect, analyze, and store clinical, cognitive, behavioral, functional, genetic, and neuroimaging data and biospecimens. Participants are ≥50 years old; have no, subjective, or mild cognitive impairment; have a study partner; and are eligible to undergo magnetic resonance imaging (MRI). Recruitment is community-based including advertisements, word-of-mouth, community events, and physician referrals. At baseline, following informed consent, participants complete detailed web-based surveys (e.g., demographics, health history, risk and resilience factors), followed by two half-day visits which include neurological exams, cognitive and functional assessments, an overnight sleep study, and biospecimen collection. Structural and functional MRI is completed by all participants and a subset also consent to amyloid PET imaging. Annual follow-up visits repeat the same data and biospecimen collection as baseline, except that MRIs are conducted every other year after baseline. ETHICS AND EXPECTED IMPACT HBI has been approved by the University of Miami Miller School of Medicine Institutional Review Board. Participants provide informed consent at baseline and are re-consented as needed with protocol changes. Data collected by HBI will lead to breakthroughs in developing new diagnostics and therapeutics, creating comprehensive diagnostic evaluations, and providing the evidence base for precision medicine approaches to dementia prevention with individualized treatment plans.
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Affiliation(s)
- Lilah M. Besser
- Department of Neurology, Comprehensive Center for Brain Health, University of Miami Miller School of Medicine, Boca Raton, Florida, United States of America
| | - Stephanie Chrisphonte
- Department of Neurology, Comprehensive Center for Brain Health, University of Miami Miller School of Medicine, Boca Raton, Florida, United States of America
| | - Michael J. Kleiman
- Department of Neurology, Comprehensive Center for Brain Health, University of Miami Miller School of Medicine, Boca Raton, Florida, United States of America
| | - Deirdre O’Shea
- Department of Neurology, Comprehensive Center for Brain Health, University of Miami Miller School of Medicine, Boca Raton, Florida, United States of America
| | - Amie Rosenfeld
- Department of Neurology, Comprehensive Center for Brain Health, University of Miami Miller School of Medicine, Boca Raton, Florida, United States of America
| | - Magdalena Tolea
- Department of Neurology, Comprehensive Center for Brain Health, University of Miami Miller School of Medicine, Boca Raton, Florida, United States of America
| | - James E. Galvin
- Department of Neurology, Comprehensive Center for Brain Health, University of Miami Miller School of Medicine, Boca Raton, Florida, United States of America
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Choudhury P, Zhang N, Adler CH, Chen K, Belden C, Driver-Dunckley E, Mehta SH, Shprecher DR, Serrano G, Shill HA, Beach TG, Atri A. Longitudinal motor decline in dementia with Lewy bodies, Parkinson disease dementia, and Alzheimer's dementia in a community autopsy cohort. Alzheimers Dement 2023; 19:4377-4387. [PMID: 37422286 PMCID: PMC10592344 DOI: 10.1002/alz.13357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 05/04/2023] [Accepted: 05/05/2023] [Indexed: 07/10/2023]
Abstract
INTRODUCTION We examined the progression of extrapyramidal symptoms and signs in autopsy-confirmed dementia with Lewy bodies (DLB), Parkinson's disease dementia (PDD), and Alzheimer's disease dementia (AD). METHODS Longitudinal data were obtained from Arizona Study of Aging and Neurodegenerative Disease, with PDD (n = 98), AD (n = 47) and DLB (n = 48) further sub-grouped as with or without parkinsonism (DLB+ and DLB-). Within-group Unified Parkinson's Disease Rating Scale (UPDRS) -II and UPDRS-III trajectories were analyzed using non-linear mixed effects models. RESULTS In DLB, 65.6% had parkinsonism. Baseline UPDRS-II and III scores (off-stage) were highest (P < 0.001) for PDD (mean ± SD 14.3 ± 7.8 and 27.4 ± 16.3), followed by DLB+ (6.0 ± 8.8 and 17.2 ± 17.1), DLB- (1.1 ± 1.3 and 3.3 ± 5.5) and AD (3.2 ± 6.1 and 8.2 ± 13.6). Compared to PDD, the DLB+ group had faster UPDRS-III progression over 8-years (Cohen's-d range 0.98 to 2.79, P < 0.001), driven by gait (P < 0.001) and limb bradykinesia (P = 0.02) subscales. DISCUSSION Motor deficits progress faster in DLB+ than PDD, providing insights about expected changes in motor function. HIGHLIGHTS Dementia with Lewy bodies has faster motor progression than Parkinson's disease dementia Linear and non-linear mixed modeling analysis of longitudinal data was utilized Findings have implications for clinical prognostication and trial design.
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Affiliation(s)
- Parichita Choudhury
- Cleo Roberts Center, Banner Sun Health Research Institute, Sun City, Arizona, 85351, USA
| | - Nan Zhang
- Department of Quantitative Health Sciences, Mayo Clinic College of Medicine, Scottsdale, Arizona, 85259, USA
| | - Charles H. Adler
- Department of Neurology, Mayo Clinic College of Medicine, Scottsdale, Arizona, 85259, USA
| | - Kewei Chen
- Computational Imaging Lab, Banner Alzheimer’s Institute, Phoenix, Arizona, 85006, USA
| | - Christine Belden
- Cleo Roberts Center, Banner Sun Health Research Institute, Sun City, Arizona, 85351, USA
| | - Erika Driver-Dunckley
- Department of Neurology, Mayo Clinic College of Medicine, Scottsdale, Arizona, 85259, USA
| | - Shyamal H. Mehta
- Computational Imaging Lab, Banner Alzheimer’s Institute, Phoenix, Arizona, 85006, USA
| | - David R. Shprecher
- Cleo Roberts Center, Banner Sun Health Research Institute, Sun City, Arizona, 85351, USA
| | - Geidy Serrano
- Civin Laboratory for Neuropathology, Banner Sun Health Research Institute, Sun City, Arizona, 85351, USA
| | - Holly A. Shill
- Department of Neurology, Barrow Neurological Institute, Phoenix, Arizona, 85013, USA
| | - Thomas G. Beach
- Civin Laboratory for Neuropathology, Banner Sun Health Research Institute, Sun City, Arizona, 85351, USA
| | - Alireza Atri
- Cleo Roberts Center, Banner Sun Health Research Institute, Sun City, Arizona, 85351, USA
- Center for Brain/Mind Medicine & Department of Neurology, Brigham and Women’s Hospital, Boston, MA, 02115, USA
- Harvard Medical School, Boston, MA, 02115, USA
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Besser LM, Chrisphonte S, Kleiman MJ, O'Shea D, Rosenfeld A, Tolea M, Galvin JE. The Healthy Brain Initiative (HBI): A prospective cohort study protocol. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.09.21.23295908. [PMID: 37808766 PMCID: PMC10557773 DOI: 10.1101/2023.09.21.23295908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
Background The Health Brain Initiative (HBI), established by University of Miami's Comprehensive Center for Brain Health (CCBH), follows racially/ethnically diverse older adults without dementia living in South Florida. With dementia prevention and brain health promotion as an overarching goal, HBI will advance scientific knowledge by developing novel assessments and non-invasive biomarkers of Alzheimer's disease and related dementias (ADRD), examining additive effects of sociodemographic, lifestyle, neurological and biobehavioral measures, and employing innovative, methodologically advanced modeling methods to characterize ADRD risk and resilience factors and transition of brain aging. Methods HBI is a longitudinal, observational cohort study that will follow 500 deeply-phenotyped participants annually to collect, analyze, and store clinical, cognitive, behavioral, functional, genetic, and neuroimaging data and biospecimens. Participants are ≥50 years old; have no, subjective, or mild cognitive impairment; have a study partner; and are eligible to undergo magnetic resonance imaging (MRI). Recruitment is community-based including advertisements, word-of-mouth, community events, and physician referrals. At baseline, following informed consent, participants complete detailed web-based surveys (e.g., demographics, health history, risk and resilience factors), followed by two half-day visits which include neurological exams, cognitive and functional assessments, an overnight sleep study, and biospecimen collection. Structural and functional MRI is completed by all participants and a subset also consent to amyloid PET imaging. Annual follow-up visits repeat the same data and biospecimen collection as baseline, except that MRIs are conducted every other year after baseline. Ethics and expected impact HBI has been approved by the University of Miami Miller School of Medicine Institutional Review Board. Participants provide informed consent at baseline and are re-consented as needed with protocol changes. Data collected by HBI will lead to breakthroughs in developing new diagnostics and therapeutics, create comprehensive diagnostic evaluations, and provide the evidence base for precision medicine approaches to dementia prevention with individualized treatment plans.
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Diaz-Galvan P, Przybelski SA, Lesnick TG, Schwarz CG, Senjem ML, Gunter JL, Jack CR, Min HKP, Jain M, Miyagawa T, Forsberg LK, Fields JA, Savica R, Graff-Radford J, Jones DT, Botha H, St Louis EK, Knopman DS, Ramanan VK, Ross O, Graff-Radford N, Day GS, Dickson DW, Ferman TJ, Petersen RC, Lowe VJ, Boeve BF, Kantarci K. β-Amyloid Load on PET Along the Continuum of Dementia With Lewy Bodies. Neurology 2023; 101:e178-e188. [PMID: 37202168 PMCID: PMC10351554 DOI: 10.1212/wnl.0000000000207393] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 03/23/2023] [Indexed: 05/20/2023] Open
Abstract
BACKGROUND AND OBJECTIVES β-Amyloid (Aβ) plaques can co-occur with Lewy-related pathology in patients with dementia with Lewy bodies (DLB), but Aβ load at prodromal stages of DLB still needs to be elucidated. We investigated Aβ load on PET throughout the DLB continuum, from an early prodromal stage of isolated REM sleep behavior disorder (iRBD) to a stage of mild cognitive impairment with Lewy bodies (MCI-LB), and finally DLB. METHODS We performed a cross-sectional study in patients with a diagnosis of iRBD, MCI-LB, or DLB from the Mayo Clinic Alzheimer Disease Research Center. Aβ levels were measured by Pittsburgh compound B (PiB) PET, and global cortical standardized uptake value ratio (SUVR) was calculated. Global cortical PiB SUVR values from each clinical group were compared with each other and with those of cognitively unimpaired (CU) individuals (n = 100) balanced on age and sex using analysis of covariance. We used multiple linear regression testing for interaction to study the influences of sex and APOE ε4 status on PiB SUVR along the DLB continuum. RESULTS Of the 162 patients, 16 had iRBD, 64 had MCI-LB, and 82 had DLB. Compared with CU individuals, global cortical PiB SUVR was higher in those with DLB (p < 0.001) and MCI-LB (p = 0.012). The DLB group included the highest proportion of Aβ-positive patients (60%), followed by MCI-LB (41%), iRBD (25%), and finally CU (19%). Global cortical PiB SUVR was higher in APOE ε4 carriers compared with that in APOE ε4 noncarriers in MCI-LB (p < 0.001) and DLB groups (p = 0.049). Women had higher PiB SUVR with older age compared with men across the DLB continuum (β estimate = 0.014, p = 0.02). DISCUSSION In this cross-sectional study, levels of Aβ load was higher further along the DLB continuum. Whereas Aβ levels were comparable with those in CU individuals in iRBD, a significant elevation in Aβ levels was observed in the predementia stage of MCI-LB and in DLB. Specifically, APOE ε4 carriers had higher Aβ levels than APOE ε4 noncarriers, and women tended to have higher Aβ levels than men as they got older. These findings have important implications in targeting patients within the DLB continuum for clinical trials of disease-modifying therapies.
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Affiliation(s)
- Patricia Diaz-Galvan
- From the Department of Radiology (P.D.-G., C.G.S., M.L.S., J.L.G., C.R.J., H.-K.P.M., V.J.L., K.K.), Department of Quantitative Health Sciences (S.A.P., T.G.L., R.C.P.), and Department of Information Technology (M.L.S.), Mayo Clinic, Rochester, MN; Department of Radiology (M.J.), Mayo Clinic, Jacksonville, FL; Department of Neurology (T.M., L.K.F., R.S., J.G.-R., D.T.J., H.B., E.K.S.L., D.S.K., V.K.R., R.C.P., B.F.B.), Department of Psychiatry and Psychology (J.A.F., E.K.S.L.), and Center for Sleep Medicine (E.K.S.L.), Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN; Mayo Clinic Health System Southwest Wisconsin (E.K.S.L.), La Crosse; Department of Neuroscience (O.R.), Department of Neurology (N.G.-R., G.S.D.), Laboratory of Medicine and Pathology (D.W.D.), and Department of Psychiatry and Psychology (T.J.F.), Mayo Clinic, Jacksonville, FL
| | - Scott A Przybelski
- From the Department of Radiology (P.D.-G., C.G.S., M.L.S., J.L.G., C.R.J., H.-K.P.M., V.J.L., K.K.), Department of Quantitative Health Sciences (S.A.P., T.G.L., R.C.P.), and Department of Information Technology (M.L.S.), Mayo Clinic, Rochester, MN; Department of Radiology (M.J.), Mayo Clinic, Jacksonville, FL; Department of Neurology (T.M., L.K.F., R.S., J.G.-R., D.T.J., H.B., E.K.S.L., D.S.K., V.K.R., R.C.P., B.F.B.), Department of Psychiatry and Psychology (J.A.F., E.K.S.L.), and Center for Sleep Medicine (E.K.S.L.), Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN; Mayo Clinic Health System Southwest Wisconsin (E.K.S.L.), La Crosse; Department of Neuroscience (O.R.), Department of Neurology (N.G.-R., G.S.D.), Laboratory of Medicine and Pathology (D.W.D.), and Department of Psychiatry and Psychology (T.J.F.), Mayo Clinic, Jacksonville, FL
| | - Timothy G Lesnick
- From the Department of Radiology (P.D.-G., C.G.S., M.L.S., J.L.G., C.R.J., H.-K.P.M., V.J.L., K.K.), Department of Quantitative Health Sciences (S.A.P., T.G.L., R.C.P.), and Department of Information Technology (M.L.S.), Mayo Clinic, Rochester, MN; Department of Radiology (M.J.), Mayo Clinic, Jacksonville, FL; Department of Neurology (T.M., L.K.F., R.S., J.G.-R., D.T.J., H.B., E.K.S.L., D.S.K., V.K.R., R.C.P., B.F.B.), Department of Psychiatry and Psychology (J.A.F., E.K.S.L.), and Center for Sleep Medicine (E.K.S.L.), Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN; Mayo Clinic Health System Southwest Wisconsin (E.K.S.L.), La Crosse; Department of Neuroscience (O.R.), Department of Neurology (N.G.-R., G.S.D.), Laboratory of Medicine and Pathology (D.W.D.), and Department of Psychiatry and Psychology (T.J.F.), Mayo Clinic, Jacksonville, FL
| | - Christopher G Schwarz
- From the Department of Radiology (P.D.-G., C.G.S., M.L.S., J.L.G., C.R.J., H.-K.P.M., V.J.L., K.K.), Department of Quantitative Health Sciences (S.A.P., T.G.L., R.C.P.), and Department of Information Technology (M.L.S.), Mayo Clinic, Rochester, MN; Department of Radiology (M.J.), Mayo Clinic, Jacksonville, FL; Department of Neurology (T.M., L.K.F., R.S., J.G.-R., D.T.J., H.B., E.K.S.L., D.S.K., V.K.R., R.C.P., B.F.B.), Department of Psychiatry and Psychology (J.A.F., E.K.S.L.), and Center for Sleep Medicine (E.K.S.L.), Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN; Mayo Clinic Health System Southwest Wisconsin (E.K.S.L.), La Crosse; Department of Neuroscience (O.R.), Department of Neurology (N.G.-R., G.S.D.), Laboratory of Medicine and Pathology (D.W.D.), and Department of Psychiatry and Psychology (T.J.F.), Mayo Clinic, Jacksonville, FL
| | - Matthew L Senjem
- From the Department of Radiology (P.D.-G., C.G.S., M.L.S., J.L.G., C.R.J., H.-K.P.M., V.J.L., K.K.), Department of Quantitative Health Sciences (S.A.P., T.G.L., R.C.P.), and Department of Information Technology (M.L.S.), Mayo Clinic, Rochester, MN; Department of Radiology (M.J.), Mayo Clinic, Jacksonville, FL; Department of Neurology (T.M., L.K.F., R.S., J.G.-R., D.T.J., H.B., E.K.S.L., D.S.K., V.K.R., R.C.P., B.F.B.), Department of Psychiatry and Psychology (J.A.F., E.K.S.L.), and Center for Sleep Medicine (E.K.S.L.), Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN; Mayo Clinic Health System Southwest Wisconsin (E.K.S.L.), La Crosse; Department of Neuroscience (O.R.), Department of Neurology (N.G.-R., G.S.D.), Laboratory of Medicine and Pathology (D.W.D.), and Department of Psychiatry and Psychology (T.J.F.), Mayo Clinic, Jacksonville, FL
| | - Jeffrey L Gunter
- From the Department of Radiology (P.D.-G., C.G.S., M.L.S., J.L.G., C.R.J., H.-K.P.M., V.J.L., K.K.), Department of Quantitative Health Sciences (S.A.P., T.G.L., R.C.P.), and Department of Information Technology (M.L.S.), Mayo Clinic, Rochester, MN; Department of Radiology (M.J.), Mayo Clinic, Jacksonville, FL; Department of Neurology (T.M., L.K.F., R.S., J.G.-R., D.T.J., H.B., E.K.S.L., D.S.K., V.K.R., R.C.P., B.F.B.), Department of Psychiatry and Psychology (J.A.F., E.K.S.L.), and Center for Sleep Medicine (E.K.S.L.), Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN; Mayo Clinic Health System Southwest Wisconsin (E.K.S.L.), La Crosse; Department of Neuroscience (O.R.), Department of Neurology (N.G.-R., G.S.D.), Laboratory of Medicine and Pathology (D.W.D.), and Department of Psychiatry and Psychology (T.J.F.), Mayo Clinic, Jacksonville, FL
| | - Clifford R Jack
- From the Department of Radiology (P.D.-G., C.G.S., M.L.S., J.L.G., C.R.J., H.-K.P.M., V.J.L., K.K.), Department of Quantitative Health Sciences (S.A.P., T.G.L., R.C.P.), and Department of Information Technology (M.L.S.), Mayo Clinic, Rochester, MN; Department of Radiology (M.J.), Mayo Clinic, Jacksonville, FL; Department of Neurology (T.M., L.K.F., R.S., J.G.-R., D.T.J., H.B., E.K.S.L., D.S.K., V.K.R., R.C.P., B.F.B.), Department of Psychiatry and Psychology (J.A.F., E.K.S.L.), and Center for Sleep Medicine (E.K.S.L.), Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN; Mayo Clinic Health System Southwest Wisconsin (E.K.S.L.), La Crosse; Department of Neuroscience (O.R.), Department of Neurology (N.G.-R., G.S.D.), Laboratory of Medicine and Pathology (D.W.D.), and Department of Psychiatry and Psychology (T.J.F.), Mayo Clinic, Jacksonville, FL
| | - Hoon-Ki Paul Min
- From the Department of Radiology (P.D.-G., C.G.S., M.L.S., J.L.G., C.R.J., H.-K.P.M., V.J.L., K.K.), Department of Quantitative Health Sciences (S.A.P., T.G.L., R.C.P.), and Department of Information Technology (M.L.S.), Mayo Clinic, Rochester, MN; Department of Radiology (M.J.), Mayo Clinic, Jacksonville, FL; Department of Neurology (T.M., L.K.F., R.S., J.G.-R., D.T.J., H.B., E.K.S.L., D.S.K., V.K.R., R.C.P., B.F.B.), Department of Psychiatry and Psychology (J.A.F., E.K.S.L.), and Center for Sleep Medicine (E.K.S.L.), Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN; Mayo Clinic Health System Southwest Wisconsin (E.K.S.L.), La Crosse; Department of Neuroscience (O.R.), Department of Neurology (N.G.-R., G.S.D.), Laboratory of Medicine and Pathology (D.W.D.), and Department of Psychiatry and Psychology (T.J.F.), Mayo Clinic, Jacksonville, FL
| | - Manoj Jain
- From the Department of Radiology (P.D.-G., C.G.S., M.L.S., J.L.G., C.R.J., H.-K.P.M., V.J.L., K.K.), Department of Quantitative Health Sciences (S.A.P., T.G.L., R.C.P.), and Department of Information Technology (M.L.S.), Mayo Clinic, Rochester, MN; Department of Radiology (M.J.), Mayo Clinic, Jacksonville, FL; Department of Neurology (T.M., L.K.F., R.S., J.G.-R., D.T.J., H.B., E.K.S.L., D.S.K., V.K.R., R.C.P., B.F.B.), Department of Psychiatry and Psychology (J.A.F., E.K.S.L.), and Center for Sleep Medicine (E.K.S.L.), Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN; Mayo Clinic Health System Southwest Wisconsin (E.K.S.L.), La Crosse; Department of Neuroscience (O.R.), Department of Neurology (N.G.-R., G.S.D.), Laboratory of Medicine and Pathology (D.W.D.), and Department of Psychiatry and Psychology (T.J.F.), Mayo Clinic, Jacksonville, FL
| | - Toji Miyagawa
- From the Department of Radiology (P.D.-G., C.G.S., M.L.S., J.L.G., C.R.J., H.-K.P.M., V.J.L., K.K.), Department of Quantitative Health Sciences (S.A.P., T.G.L., R.C.P.), and Department of Information Technology (M.L.S.), Mayo Clinic, Rochester, MN; Department of Radiology (M.J.), Mayo Clinic, Jacksonville, FL; Department of Neurology (T.M., L.K.F., R.S., J.G.-R., D.T.J., H.B., E.K.S.L., D.S.K., V.K.R., R.C.P., B.F.B.), Department of Psychiatry and Psychology (J.A.F., E.K.S.L.), and Center for Sleep Medicine (E.K.S.L.), Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN; Mayo Clinic Health System Southwest Wisconsin (E.K.S.L.), La Crosse; Department of Neuroscience (O.R.), Department of Neurology (N.G.-R., G.S.D.), Laboratory of Medicine and Pathology (D.W.D.), and Department of Psychiatry and Psychology (T.J.F.), Mayo Clinic, Jacksonville, FL
| | - Leah K Forsberg
- From the Department of Radiology (P.D.-G., C.G.S., M.L.S., J.L.G., C.R.J., H.-K.P.M., V.J.L., K.K.), Department of Quantitative Health Sciences (S.A.P., T.G.L., R.C.P.), and Department of Information Technology (M.L.S.), Mayo Clinic, Rochester, MN; Department of Radiology (M.J.), Mayo Clinic, Jacksonville, FL; Department of Neurology (T.M., L.K.F., R.S., J.G.-R., D.T.J., H.B., E.K.S.L., D.S.K., V.K.R., R.C.P., B.F.B.), Department of Psychiatry and Psychology (J.A.F., E.K.S.L.), and Center for Sleep Medicine (E.K.S.L.), Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN; Mayo Clinic Health System Southwest Wisconsin (E.K.S.L.), La Crosse; Department of Neuroscience (O.R.), Department of Neurology (N.G.-R., G.S.D.), Laboratory of Medicine and Pathology (D.W.D.), and Department of Psychiatry and Psychology (T.J.F.), Mayo Clinic, Jacksonville, FL
| | - Julie A Fields
- From the Department of Radiology (P.D.-G., C.G.S., M.L.S., J.L.G., C.R.J., H.-K.P.M., V.J.L., K.K.), Department of Quantitative Health Sciences (S.A.P., T.G.L., R.C.P.), and Department of Information Technology (M.L.S.), Mayo Clinic, Rochester, MN; Department of Radiology (M.J.), Mayo Clinic, Jacksonville, FL; Department of Neurology (T.M., L.K.F., R.S., J.G.-R., D.T.J., H.B., E.K.S.L., D.S.K., V.K.R., R.C.P., B.F.B.), Department of Psychiatry and Psychology (J.A.F., E.K.S.L.), and Center for Sleep Medicine (E.K.S.L.), Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN; Mayo Clinic Health System Southwest Wisconsin (E.K.S.L.), La Crosse; Department of Neuroscience (O.R.), Department of Neurology (N.G.-R., G.S.D.), Laboratory of Medicine and Pathology (D.W.D.), and Department of Psychiatry and Psychology (T.J.F.), Mayo Clinic, Jacksonville, FL
| | - Rodolfo Savica
- From the Department of Radiology (P.D.-G., C.G.S., M.L.S., J.L.G., C.R.J., H.-K.P.M., V.J.L., K.K.), Department of Quantitative Health Sciences (S.A.P., T.G.L., R.C.P.), and Department of Information Technology (M.L.S.), Mayo Clinic, Rochester, MN; Department of Radiology (M.J.), Mayo Clinic, Jacksonville, FL; Department of Neurology (T.M., L.K.F., R.S., J.G.-R., D.T.J., H.B., E.K.S.L., D.S.K., V.K.R., R.C.P., B.F.B.), Department of Psychiatry and Psychology (J.A.F., E.K.S.L.), and Center for Sleep Medicine (E.K.S.L.), Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN; Mayo Clinic Health System Southwest Wisconsin (E.K.S.L.), La Crosse; Department of Neuroscience (O.R.), Department of Neurology (N.G.-R., G.S.D.), Laboratory of Medicine and Pathology (D.W.D.), and Department of Psychiatry and Psychology (T.J.F.), Mayo Clinic, Jacksonville, FL
| | - Jonathan Graff-Radford
- From the Department of Radiology (P.D.-G., C.G.S., M.L.S., J.L.G., C.R.J., H.-K.P.M., V.J.L., K.K.), Department of Quantitative Health Sciences (S.A.P., T.G.L., R.C.P.), and Department of Information Technology (M.L.S.), Mayo Clinic, Rochester, MN; Department of Radiology (M.J.), Mayo Clinic, Jacksonville, FL; Department of Neurology (T.M., L.K.F., R.S., J.G.-R., D.T.J., H.B., E.K.S.L., D.S.K., V.K.R., R.C.P., B.F.B.), Department of Psychiatry and Psychology (J.A.F., E.K.S.L.), and Center for Sleep Medicine (E.K.S.L.), Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN; Mayo Clinic Health System Southwest Wisconsin (E.K.S.L.), La Crosse; Department of Neuroscience (O.R.), Department of Neurology (N.G.-R., G.S.D.), Laboratory of Medicine and Pathology (D.W.D.), and Department of Psychiatry and Psychology (T.J.F.), Mayo Clinic, Jacksonville, FL
| | - David T Jones
- From the Department of Radiology (P.D.-G., C.G.S., M.L.S., J.L.G., C.R.J., H.-K.P.M., V.J.L., K.K.), Department of Quantitative Health Sciences (S.A.P., T.G.L., R.C.P.), and Department of Information Technology (M.L.S.), Mayo Clinic, Rochester, MN; Department of Radiology (M.J.), Mayo Clinic, Jacksonville, FL; Department of Neurology (T.M., L.K.F., R.S., J.G.-R., D.T.J., H.B., E.K.S.L., D.S.K., V.K.R., R.C.P., B.F.B.), Department of Psychiatry and Psychology (J.A.F., E.K.S.L.), and Center for Sleep Medicine (E.K.S.L.), Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN; Mayo Clinic Health System Southwest Wisconsin (E.K.S.L.), La Crosse; Department of Neuroscience (O.R.), Department of Neurology (N.G.-R., G.S.D.), Laboratory of Medicine and Pathology (D.W.D.), and Department of Psychiatry and Psychology (T.J.F.), Mayo Clinic, Jacksonville, FL
| | - Hugo Botha
- From the Department of Radiology (P.D.-G., C.G.S., M.L.S., J.L.G., C.R.J., H.-K.P.M., V.J.L., K.K.), Department of Quantitative Health Sciences (S.A.P., T.G.L., R.C.P.), and Department of Information Technology (M.L.S.), Mayo Clinic, Rochester, MN; Department of Radiology (M.J.), Mayo Clinic, Jacksonville, FL; Department of Neurology (T.M., L.K.F., R.S., J.G.-R., D.T.J., H.B., E.K.S.L., D.S.K., V.K.R., R.C.P., B.F.B.), Department of Psychiatry and Psychology (J.A.F., E.K.S.L.), and Center for Sleep Medicine (E.K.S.L.), Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN; Mayo Clinic Health System Southwest Wisconsin (E.K.S.L.), La Crosse; Department of Neuroscience (O.R.), Department of Neurology (N.G.-R., G.S.D.), Laboratory of Medicine and Pathology (D.W.D.), and Department of Psychiatry and Psychology (T.J.F.), Mayo Clinic, Jacksonville, FL
| | - Erik K St Louis
- From the Department of Radiology (P.D.-G., C.G.S., M.L.S., J.L.G., C.R.J., H.-K.P.M., V.J.L., K.K.), Department of Quantitative Health Sciences (S.A.P., T.G.L., R.C.P.), and Department of Information Technology (M.L.S.), Mayo Clinic, Rochester, MN; Department of Radiology (M.J.), Mayo Clinic, Jacksonville, FL; Department of Neurology (T.M., L.K.F., R.S., J.G.-R., D.T.J., H.B., E.K.S.L., D.S.K., V.K.R., R.C.P., B.F.B.), Department of Psychiatry and Psychology (J.A.F., E.K.S.L.), and Center for Sleep Medicine (E.K.S.L.), Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN; Mayo Clinic Health System Southwest Wisconsin (E.K.S.L.), La Crosse; Department of Neuroscience (O.R.), Department of Neurology (N.G.-R., G.S.D.), Laboratory of Medicine and Pathology (D.W.D.), and Department of Psychiatry and Psychology (T.J.F.), Mayo Clinic, Jacksonville, FL
| | - David S Knopman
- From the Department of Radiology (P.D.-G., C.G.S., M.L.S., J.L.G., C.R.J., H.-K.P.M., V.J.L., K.K.), Department of Quantitative Health Sciences (S.A.P., T.G.L., R.C.P.), and Department of Information Technology (M.L.S.), Mayo Clinic, Rochester, MN; Department of Radiology (M.J.), Mayo Clinic, Jacksonville, FL; Department of Neurology (T.M., L.K.F., R.S., J.G.-R., D.T.J., H.B., E.K.S.L., D.S.K., V.K.R., R.C.P., B.F.B.), Department of Psychiatry and Psychology (J.A.F., E.K.S.L.), and Center for Sleep Medicine (E.K.S.L.), Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN; Mayo Clinic Health System Southwest Wisconsin (E.K.S.L.), La Crosse; Department of Neuroscience (O.R.), Department of Neurology (N.G.-R., G.S.D.), Laboratory of Medicine and Pathology (D.W.D.), and Department of Psychiatry and Psychology (T.J.F.), Mayo Clinic, Jacksonville, FL
| | - Vijay K Ramanan
- From the Department of Radiology (P.D.-G., C.G.S., M.L.S., J.L.G., C.R.J., H.-K.P.M., V.J.L., K.K.), Department of Quantitative Health Sciences (S.A.P., T.G.L., R.C.P.), and Department of Information Technology (M.L.S.), Mayo Clinic, Rochester, MN; Department of Radiology (M.J.), Mayo Clinic, Jacksonville, FL; Department of Neurology (T.M., L.K.F., R.S., J.G.-R., D.T.J., H.B., E.K.S.L., D.S.K., V.K.R., R.C.P., B.F.B.), Department of Psychiatry and Psychology (J.A.F., E.K.S.L.), and Center for Sleep Medicine (E.K.S.L.), Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN; Mayo Clinic Health System Southwest Wisconsin (E.K.S.L.), La Crosse; Department of Neuroscience (O.R.), Department of Neurology (N.G.-R., G.S.D.), Laboratory of Medicine and Pathology (D.W.D.), and Department of Psychiatry and Psychology (T.J.F.), Mayo Clinic, Jacksonville, FL
| | - Owen Ross
- From the Department of Radiology (P.D.-G., C.G.S., M.L.S., J.L.G., C.R.J., H.-K.P.M., V.J.L., K.K.), Department of Quantitative Health Sciences (S.A.P., T.G.L., R.C.P.), and Department of Information Technology (M.L.S.), Mayo Clinic, Rochester, MN; Department of Radiology (M.J.), Mayo Clinic, Jacksonville, FL; Department of Neurology (T.M., L.K.F., R.S., J.G.-R., D.T.J., H.B., E.K.S.L., D.S.K., V.K.R., R.C.P., B.F.B.), Department of Psychiatry and Psychology (J.A.F., E.K.S.L.), and Center for Sleep Medicine (E.K.S.L.), Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN; Mayo Clinic Health System Southwest Wisconsin (E.K.S.L.), La Crosse; Department of Neuroscience (O.R.), Department of Neurology (N.G.-R., G.S.D.), Laboratory of Medicine and Pathology (D.W.D.), and Department of Psychiatry and Psychology (T.J.F.), Mayo Clinic, Jacksonville, FL
| | - Neill Graff-Radford
- From the Department of Radiology (P.D.-G., C.G.S., M.L.S., J.L.G., C.R.J., H.-K.P.M., V.J.L., K.K.), Department of Quantitative Health Sciences (S.A.P., T.G.L., R.C.P.), and Department of Information Technology (M.L.S.), Mayo Clinic, Rochester, MN; Department of Radiology (M.J.), Mayo Clinic, Jacksonville, FL; Department of Neurology (T.M., L.K.F., R.S., J.G.-R., D.T.J., H.B., E.K.S.L., D.S.K., V.K.R., R.C.P., B.F.B.), Department of Psychiatry and Psychology (J.A.F., E.K.S.L.), and Center for Sleep Medicine (E.K.S.L.), Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN; Mayo Clinic Health System Southwest Wisconsin (E.K.S.L.), La Crosse; Department of Neuroscience (O.R.), Department of Neurology (N.G.-R., G.S.D.), Laboratory of Medicine and Pathology (D.W.D.), and Department of Psychiatry and Psychology (T.J.F.), Mayo Clinic, Jacksonville, FL
| | - Gregory S Day
- From the Department of Radiology (P.D.-G., C.G.S., M.L.S., J.L.G., C.R.J., H.-K.P.M., V.J.L., K.K.), Department of Quantitative Health Sciences (S.A.P., T.G.L., R.C.P.), and Department of Information Technology (M.L.S.), Mayo Clinic, Rochester, MN; Department of Radiology (M.J.), Mayo Clinic, Jacksonville, FL; Department of Neurology (T.M., L.K.F., R.S., J.G.-R., D.T.J., H.B., E.K.S.L., D.S.K., V.K.R., R.C.P., B.F.B.), Department of Psychiatry and Psychology (J.A.F., E.K.S.L.), and Center for Sleep Medicine (E.K.S.L.), Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN; Mayo Clinic Health System Southwest Wisconsin (E.K.S.L.), La Crosse; Department of Neuroscience (O.R.), Department of Neurology (N.G.-R., G.S.D.), Laboratory of Medicine and Pathology (D.W.D.), and Department of Psychiatry and Psychology (T.J.F.), Mayo Clinic, Jacksonville, FL
| | - Dennis W Dickson
- From the Department of Radiology (P.D.-G., C.G.S., M.L.S., J.L.G., C.R.J., H.-K.P.M., V.J.L., K.K.), Department of Quantitative Health Sciences (S.A.P., T.G.L., R.C.P.), and Department of Information Technology (M.L.S.), Mayo Clinic, Rochester, MN; Department of Radiology (M.J.), Mayo Clinic, Jacksonville, FL; Department of Neurology (T.M., L.K.F., R.S., J.G.-R., D.T.J., H.B., E.K.S.L., D.S.K., V.K.R., R.C.P., B.F.B.), Department of Psychiatry and Psychology (J.A.F., E.K.S.L.), and Center for Sleep Medicine (E.K.S.L.), Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN; Mayo Clinic Health System Southwest Wisconsin (E.K.S.L.), La Crosse; Department of Neuroscience (O.R.), Department of Neurology (N.G.-R., G.S.D.), Laboratory of Medicine and Pathology (D.W.D.), and Department of Psychiatry and Psychology (T.J.F.), Mayo Clinic, Jacksonville, FL
| | - Tanis J Ferman
- From the Department of Radiology (P.D.-G., C.G.S., M.L.S., J.L.G., C.R.J., H.-K.P.M., V.J.L., K.K.), Department of Quantitative Health Sciences (S.A.P., T.G.L., R.C.P.), and Department of Information Technology (M.L.S.), Mayo Clinic, Rochester, MN; Department of Radiology (M.J.), Mayo Clinic, Jacksonville, FL; Department of Neurology (T.M., L.K.F., R.S., J.G.-R., D.T.J., H.B., E.K.S.L., D.S.K., V.K.R., R.C.P., B.F.B.), Department of Psychiatry and Psychology (J.A.F., E.K.S.L.), and Center for Sleep Medicine (E.K.S.L.), Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN; Mayo Clinic Health System Southwest Wisconsin (E.K.S.L.), La Crosse; Department of Neuroscience (O.R.), Department of Neurology (N.G.-R., G.S.D.), Laboratory of Medicine and Pathology (D.W.D.), and Department of Psychiatry and Psychology (T.J.F.), Mayo Clinic, Jacksonville, FL
| | - Ronald C Petersen
- From the Department of Radiology (P.D.-G., C.G.S., M.L.S., J.L.G., C.R.J., H.-K.P.M., V.J.L., K.K.), Department of Quantitative Health Sciences (S.A.P., T.G.L., R.C.P.), and Department of Information Technology (M.L.S.), Mayo Clinic, Rochester, MN; Department of Radiology (M.J.), Mayo Clinic, Jacksonville, FL; Department of Neurology (T.M., L.K.F., R.S., J.G.-R., D.T.J., H.B., E.K.S.L., D.S.K., V.K.R., R.C.P., B.F.B.), Department of Psychiatry and Psychology (J.A.F., E.K.S.L.), and Center for Sleep Medicine (E.K.S.L.), Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN; Mayo Clinic Health System Southwest Wisconsin (E.K.S.L.), La Crosse; Department of Neuroscience (O.R.), Department of Neurology (N.G.-R., G.S.D.), Laboratory of Medicine and Pathology (D.W.D.), and Department of Psychiatry and Psychology (T.J.F.), Mayo Clinic, Jacksonville, FL
| | - Val J Lowe
- From the Department of Radiology (P.D.-G., C.G.S., M.L.S., J.L.G., C.R.J., H.-K.P.M., V.J.L., K.K.), Department of Quantitative Health Sciences (S.A.P., T.G.L., R.C.P.), and Department of Information Technology (M.L.S.), Mayo Clinic, Rochester, MN; Department of Radiology (M.J.), Mayo Clinic, Jacksonville, FL; Department of Neurology (T.M., L.K.F., R.S., J.G.-R., D.T.J., H.B., E.K.S.L., D.S.K., V.K.R., R.C.P., B.F.B.), Department of Psychiatry and Psychology (J.A.F., E.K.S.L.), and Center for Sleep Medicine (E.K.S.L.), Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN; Mayo Clinic Health System Southwest Wisconsin (E.K.S.L.), La Crosse; Department of Neuroscience (O.R.), Department of Neurology (N.G.-R., G.S.D.), Laboratory of Medicine and Pathology (D.W.D.), and Department of Psychiatry and Psychology (T.J.F.), Mayo Clinic, Jacksonville, FL
| | - Brad F Boeve
- From the Department of Radiology (P.D.-G., C.G.S., M.L.S., J.L.G., C.R.J., H.-K.P.M., V.J.L., K.K.), Department of Quantitative Health Sciences (S.A.P., T.G.L., R.C.P.), and Department of Information Technology (M.L.S.), Mayo Clinic, Rochester, MN; Department of Radiology (M.J.), Mayo Clinic, Jacksonville, FL; Department of Neurology (T.M., L.K.F., R.S., J.G.-R., D.T.J., H.B., E.K.S.L., D.S.K., V.K.R., R.C.P., B.F.B.), Department of Psychiatry and Psychology (J.A.F., E.K.S.L.), and Center for Sleep Medicine (E.K.S.L.), Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN; Mayo Clinic Health System Southwest Wisconsin (E.K.S.L.), La Crosse; Department of Neuroscience (O.R.), Department of Neurology (N.G.-R., G.S.D.), Laboratory of Medicine and Pathology (D.W.D.), and Department of Psychiatry and Psychology (T.J.F.), Mayo Clinic, Jacksonville, FL
| | - Kejal Kantarci
- From the Department of Radiology (P.D.-G., C.G.S., M.L.S., J.L.G., C.R.J., H.-K.P.M., V.J.L., K.K.), Department of Quantitative Health Sciences (S.A.P., T.G.L., R.C.P.), and Department of Information Technology (M.L.S.), Mayo Clinic, Rochester, MN; Department of Radiology (M.J.), Mayo Clinic, Jacksonville, FL; Department of Neurology (T.M., L.K.F., R.S., J.G.-R., D.T.J., H.B., E.K.S.L., D.S.K., V.K.R., R.C.P., B.F.B.), Department of Psychiatry and Psychology (J.A.F., E.K.S.L.), and Center for Sleep Medicine (E.K.S.L.), Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN; Mayo Clinic Health System Southwest Wisconsin (E.K.S.L.), La Crosse; Department of Neuroscience (O.R.), Department of Neurology (N.G.-R., G.S.D.), Laboratory of Medicine and Pathology (D.W.D.), and Department of Psychiatry and Psychology (T.J.F.), Mayo Clinic, Jacksonville, FL.
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Mutlay F, Kaya D, Ates Bulut E, Akpınar Söylemez B, Öntan MS, Isık AT. Validation of the Turkish version of the Lewy body composite risk score. APPLIED NEUROPSYCHOLOGY. ADULT 2023:1-7. [PMID: 37183974 DOI: 10.1080/23279095.2023.2212393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
The Lewy Body Composite Risk Score (LBCRS) has been developed to increase the sensitivity and specificity of the diagnosis attributable to Lewy body pathology outside of specialty centers. We aimed to assess the validity and reliability of the Turkish version of the LBCRS in patients with dementia with Lewy Bodies (DLB) and investigate the discriminative power of the test in Turkish patients with Alzheimer's disease (AD) and DLB, and control group. The sample population (n = 512) comprised DLB (n = 113), DLB-Mild Cognitive Impairment (MCI)(n = 12), AD (n = 42), AD-MCI (n = 21), and control group (n = 324). A significant group difference was observed in the Turkish version of the LBCRS scores of the five groups (p < .001). The Cronbach's α value was 0.82 (95% CI: 0.799-0.868). The test-retest reliability score of the scale was r = 0.94 and p < .001. The subscales of the LBCRS (motor and nonmotor subdomains of the disease) were determined to explain 65.961% of the total variance with an eigenvalue >1. In patients with DLB, the cutoff score of ≥3 showed sensitivity (92%) and specificity (81%) (area under the curve [AUC] = 0.883, 95% CI: 0.815-0.951), p < .001) compared with the AD. Compared to the control group, the cutoff score of ≥3 showed a sensitivity of 98% and specificity of 97% (AUC = 0.994, 95% CI: 0.989-0.999, p < .001). The Turkish version of LBCRS permits accurate diagnosis of DLB with high sensitivity and specificity. Also, it can be useful to inform the caregivers regarding the course of the disease during the follow-up.
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Affiliation(s)
- Feyza Mutlay
- Unit for Aging Brain and Dementia, Department of Geriatric Medicine, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkey
- The Geriatric Science Association, Izmir, Turkey
| | - Derya Kaya
- Unit for Aging Brain and Dementia, Department of Geriatric Medicine, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkey
- The Geriatric Science Association, Izmir, Turkey
| | - Esra Ates Bulut
- The Geriatric Science Association, Izmir, Turkey
- Department of Geriatric Medicine, Adana City Research and Training Hospital, Adana, Turkey
| | - Burcu Akpınar Söylemez
- Department of Internal Medicine Nursing, Faculty of Nursing, Dokuz Eylul University, Izmir, Turkey
| | - Mehmet Selman Öntan
- Unit for Aging Brain and Dementia, Department of Geriatric Medicine, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkey
- The Geriatric Science Association, Izmir, Turkey
| | - Ahmet Turan Isık
- Unit for Aging Brain and Dementia, Department of Geriatric Medicine, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkey
- The Geriatric Science Association, Izmir, Turkey
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14
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Pelak VS, Paez YM, Patnaik JL, Holden SK, Subramanian PS, Mathias MT, Mandava N, Lynch AM. An Exploratory Study to Investigate the Utility of Clinical Screening for Neurodegenerative Disease in Age-Related Eye Disease Research. J Neuroophthalmol 2022; 42:346-352. [PMID: 35483065 PMCID: PMC9529756 DOI: 10.1097/wno.0000000000001550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Unrecognized neurodegenerative diseases (NDD) in age-related eye disease research studies have the potential to confound vision-specific quality of life and retinal optical coherence tomography (OCT) outcome measures. The aim of this exploratory study was to investigate relationships between NDD screening tools and visual outcome measures in a small cohort of controls from the Colorado Age-Related Macular Degeneration Registry (CO-AMD), to consider the utility of future studies. METHODS Twenty-nine controls from the CO-AMD were screened using the Montreal Cognitive Assessment (MoCA), a Colorado Parkinsonian Checklist, and the Lewy Body Composite Risk Score. Univariate and multivariable linear regression modeling was used to assess associations between screening tools and the National Eye Institute Visual Function Questionnaire-25 (VFQ-25) and macular OCT outcome measures, and t tests were used to evaluate outcome measure differences between those with normal vs abnormal MoCA scores. RESULTS One patient withdrew. The average age was 72.8 years, and 68% were female patients. Ten participants (36%) had abnormal MoCA scores, and their VFQ-25 scores were only 1 point less and not statistically different than those with normal MoCA scores. Macular OCT volumes and thicknesses for retinal nerve fiber layer (RNFL) and retinal ganglion cell layer were consistently and moderately lower for those with abnormal MoCA scores, and a positive association between MoCA and macular RNFL volume was observed, although differences and regression were not significant. Parkinson screening tests were abnormal for only 4 participants and were not associated with OCT or VFQ-25 measures by regression modeling. CONCLUSIONS Given the degree and direction of observed differences, further investigation is warranted regarding the relationship between cognitive screening tools and macular OCT measures in age-related eye disease research, but future investigations regarding the relationship between NDD screening tools and VFQ-25 seem unwarranted.
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Affiliation(s)
- Victoria S. Pelak
- Department of Neurology, University of Colorado School of Medicine, Aurora, CO, USA
- Department of Ophthalmology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Yosbelkys Martin Paez
- Department of Neurology, University of Colorado School of Medicine, Aurora, CO, USA
- Department of Ophthalmology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Jennifer L. Patnaik
- Department of Ophthalmology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Samantha K. Holden
- Department of Neurology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Prem S. Subramanian
- Department of Neurology, University of Colorado School of Medicine, Aurora, CO, USA
- Department of Ophthalmology, University of Colorado School of Medicine, Aurora, CO, USA
- Department of Neurosurgery, University of Colorado School of Medicine, Aurora, CO, USA
- Department of Surgery, Division of Ophthalmology, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
| | - Marc T. Mathias
- Department of Ophthalmology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Naresh Mandava
- Department of Ophthalmology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Anne M. Lynch
- Department of Ophthalmology, University of Colorado School of Medicine, Aurora, CO, USA
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15
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Carlisle TC, Birlea M, Restrepo D, Filley CM. Headache-Associated Phantosmia as a Harbinger of Lewy Body Dementia. J Neuropsychiatry Clin Neurosci 2022; 35:92-97. [PMID: 35989571 PMCID: PMC11022529 DOI: 10.1176/appi.neuropsych.21110265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Olfactory hallucinations, or phantosmias, can occur in many neurological, psychiatric, and medical conditions, but no widely used standardized approach exists to comprehensively assess qualitative olfactory dysfunction in the clinical setting. Additionally, medical professionals, patients, and their family members may not recognize phantosmia as a potentially neurological problem. Given the many possible etiologies for symptomatic phantosmia, it is important to recognize this unusual presentation and elicit a meaningful history to explore the potential underlying cause. We describe a 77-year-old gentleman with a two-year history of headaches accompanied by smelling a foul odor and discuss the differential diagnosis for new onset and persistent phantosmia. This unusual case ultimately manifested features consistent with Lewy body dementia, highlighting the varied clinical presentations that are possible with this neurodegenerative disorder. We discuss the possible pathophysiology of phantosmia in Lewy body disorders, including a proposed mechanism for olfactory hallucinations arising prior to the typical well-formed hallucinations in Lewy body dementia.
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Affiliation(s)
- Tara C Carlisle
- Departments of Neurology, Behavioral Neurology (Carlisle, Filley) and Headache (Birlea) sections, Psychiatry (Filley), and Cell and Developmental Biology (Restrepo), University of Colorado School of Medicine, Aurora; Marcus Institute for Brain Health, Aurora (Filley)
| | - Marius Birlea
- Departments of Neurology, Behavioral Neurology (Carlisle, Filley) and Headache (Birlea) sections, Psychiatry (Filley), and Cell and Developmental Biology (Restrepo), University of Colorado School of Medicine, Aurora; Marcus Institute for Brain Health, Aurora (Filley)
| | - Diego Restrepo
- Departments of Neurology, Behavioral Neurology (Carlisle, Filley) and Headache (Birlea) sections, Psychiatry (Filley), and Cell and Developmental Biology (Restrepo), University of Colorado School of Medicine, Aurora; Marcus Institute for Brain Health, Aurora (Filley)
| | - Christopher M Filley
- Departments of Neurology, Behavioral Neurology (Carlisle, Filley) and Headache (Birlea) sections, Psychiatry (Filley), and Cell and Developmental Biology (Restrepo), University of Colorado School of Medicine, Aurora; Marcus Institute for Brain Health, Aurora (Filley)
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16
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Ala T, Bakir D, Goel S, Feller N, Botchway A, Womack C. A Mini-Mental State Examination Formula May Help to Distinguish Alzheimer's Disease from Dementia with Lewy Bodies. J Alzheimers Dis 2022; 89:1119-1129. [PMID: 35964193 PMCID: PMC9535553 DOI: 10.3233/jad-220392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Background: Alzheimer’s disease (AD) and dementia with Lewy bodies (DLB) differ in their memory, attention, and visuoconstructional characteristics. The subscales of the well-known Mini-Mental State Examination (MMSE) provide an opportunity to assess these characteristics. Previous research has shown that analysis of the MMSE subscale performance of AD and DLB patients helps to differentiate them. Objective: Study the MMSE scores of AD and DLB patients to see if the ability of previously reported analyses to differentiate them could be improved. Include other dementia patients for perspective. Methods: We studied the MMSEs of all patients seen in our clinics during an 18-month period. Different equations were studied, derived from the subscales of Memory (M, 3 points maximum), Attention (A, 5 points maximum), and Pentagon-copying (P, 1 point maximum). Results: We obtained 400 MMSEs, 136 from AD patients and 24 from DLB patients, scoring range 1–30. The equation P minus M provided the best discrimination between AD and DLB. Using a P-M score = 1 to identify AD, the positive predictive value was 0.97, negative predictive value 0.22, specificity 0.92, and sensitivity 0.43. As a secondary finding, the P-M = 1 equation was also helpful to differentiate AD from Parkinson’s disease dementia. Conclusion: Considering AD versus DLB in our clinic population, a demented patient who was unable to recall the three memory words on the MMSE but able to copy the intersecting pentagons had a 97% likelihood of having AD. Additional work is needed to improve the sensitivity of the P-M = 1 equation.
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Affiliation(s)
- Tom Ala
- Dale and Deborah Smith Center for Alzheimer's Research and Treatment, Southern Illinois University School ofMedicine, Springfield, IL, USA
| | - Danah Bakir
- Dale and Deborah Smith Center for Alzheimer's Research and Treatment, Southern Illinois University School ofMedicine, Springfield, IL, USA
| | - Srishti Goel
- Dale and Deborah Smith Center for Alzheimer's Research and Treatment, Southern Illinois University School ofMedicine, Springfield, IL, USA
| | - Nida Feller
- Dale and Deborah Smith Center for Alzheimer's Research and Treatment, Southern Illinois University School ofMedicine, Springfield, IL, USA
| | - Albert Botchway
- Dale and Deborah Smith Center for Alzheimer's Research and Treatment, Southern Illinois University School ofMedicine, Springfield, IL, USA
| | - Cindy Womack
- Dale and Deborah Smith Center for Alzheimer's Research and Treatment, Southern Illinois University School ofMedicine, Springfield, IL, USA
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17
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Inskip MJ, Mavros Y, Sachdev PS, Hausdorff JM, Hillel I, Singh MAF. Promoting independence in Lewy body dementia through exercise: the PRIDE study. BMC Geriatr 2022; 22:650. [PMID: 35945508 PMCID: PMC9361699 DOI: 10.1186/s12877-022-03347-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 07/28/2022] [Indexed: 11/24/2022] Open
Abstract
Background Lewy body dementia (LBD) is an aggressive type of dementia of rapid, fluctuating disease trajectory, higher incidence of adverse events, and poorer functional independence than observed in Alzheimer’s disease dementia. Non-pharmacological treatments such as progressive, high-intensity exercise are effective in other neurological cohorts but have been scarcely evaluated in LBD. Methods The Promoting Independence in Lewy Body Dementia through Exercise (PRIDE) trial was a non-randomised, non-blinded, crossover pilot trial involving older adults with LBD consisting of a baseline assessment, an 8-week wait-list, and an 8-week exercise intervention. The aims of this study were to evaluate the determinants of the primary outcome functional independence, as measured by the Movement Disorder Society Unified Parkinson’s Disease Rating Scale, and the feasibility and preliminary efficacy of an exercise intervention on this outcome. Additionally, important clinical characteristics were evaluated to explore associations and treatment targets. The exercise intervention was supervised, clinic-based, high-intensity progressive resistance training (PRT), challenging balance, and functional exercises, 3 days/week. Results Nine participants completed the baseline cross-sectional study, of which five had a diagnosis of Parkinson’s disease dementia (PDD), and four dementia with Lewy Bodies (DLB). Six completed the exercise intervention (three PDD, three DLB). The cohort was diverse, ranging from mild to severe dementia and living in various residential settings. Greater functional independence at baseline was significantly associated with better physical function, balance, cognition, quality of life, muscle mass ratio, walking endurance, faster walking speed and cadence, and lower dementia severity (p < 0.05). Participants declined by clinically meaningful amounts in functional independence, cognition, physical function, muscle mass, and weight over the wait-list period (p < 0.05). Following exercise, participants improved by clinically meaningful amounts in functional independence, cognition, physical function, and strength (p < 0.05). Progressive, high intensity exercise was well-tolerated (> 80% adherence), and only one minor exercise-related adverse event occurred. Conclusions PRIDE is the first exercise trial conducted specifically within individuals diagnosed with LBD, and provides important insight for the design of larger, randomized trials for further evaluation of progressive, high-intensity exercise as a valuable treatment in LBD. Trial registration The PRIDE trial protocol has previously been prospectively registered (08/04/2016, ANZCTR: ACTRN12616000466448). Supplementary Information The online version contains supplementary material available at 10.1186/s12877-022-03347-2.
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Affiliation(s)
- Michael J Inskip
- Sport and Exercise Science, College of Healthcare Sciences, James Cook University, Townsville, QLD, Australia. .,Exercise and Sport Science, School of Health Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW, 2006, Australia.
| | - Yorgi Mavros
- Exercise and Sport Science, School of Health Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW, 2006, Australia
| | - Perminder S Sachdev
- Centre for Healthy Brain Ageing (CHeBA), Discipline of Psychiatry, University of New South Wales, Sydney, NSW, Australia.,Neuropsychiatric Institute, The Prince of Wales Hospital, Sydney, NSW, Australia
| | - Jeffrey M Hausdorff
- Center for the Study of Movement, Cognition and Mobility, Neurological Institute, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.,Sagol School of Neuroscience and Department of Physical Therapy, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Rush Alzheimer's Disease Center and Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois, USA
| | - Inbar Hillel
- Center for the Study of Movement, Cognition and Mobility, Neurological Institute, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Maria A Fiatarone Singh
- Exercise and Sport Science, School of Health Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW, 2006, Australia.,Sydney Medical School, The University of Sydney, Camperdown, NSW, Australia.,Hebrew SeniorLife, Boston, MA, USA
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18
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Russo M, Carrarini C, Di Iorio A, Pellegrino R, Bruni AC, Caratozzolo S, Chiari A, Pretta S, Marra C, Cotelli MS, Arighi A, Fumagalli GG, Cataruzza T, Caso F, Paci C, Rosso M, Amici S, Giannandrea D, Pilotto A, Luzzi S, Castellano A, D'antonio F, Luca A, Gelosa G, Piccoli T, Mauri M, Agosta F, Babiloni C, Borroni B, Bozzali M, Filippi M, Galimberti D, Monastero R, Muscio C, Parnetti L, Perani D, Serra L, Silani V, Tiraboschi P, Cagnin A, Padovani A, Bonanni L. Accuracy of the clinical diagnosis of dementia with Lewy bodies (DLB) among the Italian Dementia Centers: a study by the Italian DLB study group (DLB-SINdem). Neurol Sci 2022; 43:4221-4229. [PMID: 35244829 PMCID: PMC9213280 DOI: 10.1007/s10072-022-05987-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 02/25/2022] [Indexed: 11/25/2022]
Abstract
Introduction Dementia with Lewy bodies (DLB) may represent a diagnostic challenge, since its clinical picture overlaps with other dementia. Two toolkits have been developed to aid the clinician to diagnose DLB: the Lewy Body Composite Risk Score (LBCRS) and the Assessment Toolkit for DLB (AT-DLB). We aim to evaluate the reliability of these two questionnaires, and their ability to enhance the interpretation of the international consensus diagnostic criteria. Methods LBCRS and AT-DLB were distributed to 135 Italian Neurological Centers for Cognitive Decline and Dementia (CDCDs), with the indication to administer them to all patients with dementia referred within the subsequent 3 months. We asked to subsequently apply consensus criteria for DLB diagnosis, to validate the diagnostic accuracy of the two toolkits. Results A total of 23 Centers joined the study; 1854 patients were enrolled. We found a prevalence of possible or probable DLB of 13% each (26% total), according to the consensus criteria. LBCRS toolkit showed good reliability, with a Cronbach alpha of 0.77, stable even after removing variables from the construct. AT-DLB toolkit Cronbach alpha was 0.52 and, after the subtraction of the “cognitive fluctuation” criterion, was only 0.31. Accuracy, sensitivity, and specificity were higher for LBCRS vs. AT-DLB. However, when simultaneously considered in the logistic models, AT-DLB showed a better performance (p < 0.001). Overall, the concordance between LBCRS positive and AT-DLB possible/probable was of 78.02% Conclusions In a clinical setting, the LBCRS and AT-DLB questionnaires have good accuracy for DLB diagnosis. Supplementary Information The online version contains supplementary material available at 10.1007/s10072-022-05987-z.
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Affiliation(s)
- Mirella Russo
- Department of Neuroscience, Imaging and Clinical Sciences, University G. d'Annunzio of Chieti-Pescara, Chieti, Italy
| | - Claudia Carrarini
- Department of Neuroscience, Imaging and Clinical Sciences, University G. d'Annunzio of Chieti-Pescara, Chieti, Italy
| | - Angelo Di Iorio
- Department of Medicine and Aging Sciences, University G. d'Annunzio of Chieti-Pescara, Chieti, Italy
| | - Raffaello Pellegrino
- Department of Medicine and Aging Sciences, University G. d'Annunzio of Chieti-Pescara, Chieti, Italy
| | - Amalia Cecilia Bruni
- Regional Neurogenetic Centre, Department of Primary Care, ASP-CZ, Lamezia Terme, Italy
| | - Salvatore Caratozzolo
- Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Annalisa Chiari
- U.O. Di Neurologia, Azienda Ospedaliera Universitaria Di Modena, Modena, Italy
| | - Stefano Pretta
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Camillo Marra
- Memory Clinic, Fondazione Policlinico Gemelli, IRCCS Università, Cattolica del Sacro Cuore, Rome, Italy
| | | | - Andrea Arighi
- UOSD Neurologia, Malattie Neurodegenerative, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milano, Italy
| | - Giorgio G Fumagalli
- UOSD Neurologia, Malattie Neurodegenerative, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milano, Italy
| | - Tatiana Cataruzza
- Department of Medicine, Surgery and Health Sciences, Neurology Unit, University Hospital and Health Services of Trieste, Trieste, Italy
| | - Francesca Caso
- Unit of Neurology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Cristina Paci
- Division of Neurology, Ospedale Madonna del Soccorso, ASUR Marche, San Benedetto del Tronto-Ascoli, Piceno, Italy
| | - Mara Rosso
- Neurology Clinic, SS Annunziata Hospital of Savigliano, Savigliano, Italy
| | - Serena Amici
- Cognitive Disorder and Dementia Unit, USL Umbria 1, Perugia, Italy
| | - David Giannandrea
- Neurologia E Stroke Unit, Ospedale Di Gubbio E Gualdo Tadino, Perugia, Italy
| | - Andrea Pilotto
- Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Simona Luzzi
- Department of Experimental and Clinical Medicine, Polytechnic University of Marche - Ospedali Riuniti, Ancona, Italy
| | | | - Fabrizia D'antonio
- Department of Human Neurosciences, Sapienza University of Rome, Rome, Italy
| | - Antonina Luca
- Department of Medical, Surgical Sciences and Advanced Technologies, GF Ingrassia, University of Catania, Catania, Italy
| | - Giorgio Gelosa
- Cognitive Neuropsychology Center, Niguarda Hospital, Milan, Italy
| | - Tommaso Piccoli
- Unit of Neurology, Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Marco Mauri
- Department of Biotechnologies and Life Sciences, University of Insubria, Varese, Italy
| | - Federica Agosta
- Unit of Neurology, Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute and Vita-Salute San Raffaele University, Milan, Italy
| | - Claudio Babiloni
- Department of Physiology and Pharmacology "V. Erspamer, Sapienza University of Rome, Rome, Italy
- Hospital San Raffaele Cassino (FR), Cassino, Italy
| | - Barbara Borroni
- Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Marco Bozzali
- Department of Neuroscience, University of Turin, Turin, Italy
| | - Massimo Filippi
- Unit of Neurology, Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute and Vita-Salute San Raffaele University, Milan, Italy
| | - Daniela Galimberti
- UOSD Neurologia, Malattie Neurodegenerative, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milano, Italy
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Milan, Italy
| | - Roberto Monastero
- Section of Neurology, Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Cristina Muscio
- Neurology 5-Neuropathology Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Lucilla Parnetti
- Laboratory of Clinical Neurochemistry, Section of Neurology, Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Daniela Perani
- In Vivo Human Molecular and Structural Neuroimaging Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Laura Serra
- Neuroimaging Laboratory, Fondazione Santa Lucia, IRCCS, Rome, Italy
| | - Vincenzo Silani
- Department of Neurology and Laboratory of Neuroscience, IRCCS Istituto Auxologico Italiano and Università Degli Studi Di Milano, Milano, Italy
| | - Pietro Tiraboschi
- Neurology 5-Neuropathology Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | | | - Alessandro Padovani
- Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Laura Bonanni
- Department of Medicine and Aging Sciences, University G. d'Annunzio of Chieti-Pescara, Chieti, Italy.
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19
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Ingram M, Colloby SJ, Firbank MJ, Lloyd JJ, O'Brien JT, Taylor JP. Spatial covariance analysis of FDG-PET and HMPAO-SPECT for the differential diagnosis of dementia with Lewy bodies and Alzheimer's disease. Psychiatry Res Neuroimaging 2022; 322:111460. [PMID: 35247828 DOI: 10.1016/j.pscychresns.2022.111460] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 02/13/2022] [Indexed: 10/19/2022]
Abstract
We investigated diagnostic characteristics of spatial covariance analysis (SCA) of FDG-PET and HMPAO-SPECT scans in the differential diagnosis of dementia with Lewy bodies (DLB) and Alzheimer's disease (AD), in comparison with visual ratings and region of interest (ROI) analysis. Sixty-seven patients (DLB 29, AD 38) had both HMPAO-SPECT and FDG-PET scans. Spatial covariance patterns were used to separate AD and DLB in an initial derivation group (DLB n=15, AD n=19), before being forward applied to an independent group (DLB n=14, AD n=19). Visual ratings were by consensus, with ROI analysis utilising medial occipital/medial temporal uptake ratios. SCA of HMPAO-SPECT performed poorly (AUC 0.59±0.10), whilst SCA of FDG-PET (AUC 0.83±0.07) was significantly better. For FDG-PET, SCA showed similar diagnostic performance to ROI analysis (AUC 0.84±0.08) and visual rating (AUC 0.82±0.08). In contrast to ROI analysis, there was little concordance between SCA and visual ratings of FDG-PET scans. We conclude that SCA of FDG-PET outperforms that of HMPAO-SPECT. SCA of FDG-PET also performed similarly to the other analytical approaches, despite the limitations of a relatively small SCA derivation group. Compared to visual rating, SCA of FDG-PET relies on different sources of group variance to separate DLB from AD.
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Affiliation(s)
- Matthew Ingram
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle-upon-Tyne, United Kingdom.
| | - Sean J Colloby
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle-upon-Tyne, United Kingdom
| | - Michael J Firbank
- Institute of Neuroscience, Faculty of Medical Sciences, Newcastle University, Newcastle-upon-Tyne, United Kingdom
| | - Jim J Lloyd
- Institute of Neuroscience, Faculty of Medical Sciences, Newcastle University, Newcastle-upon-Tyne, United Kingdom
| | - John T O'Brien
- Department of Psychiatry, University of Cambridge, Cambridge, United Kingdom
| | - John-Paul Taylor
- Institute of Neuroscience, Faculty of Medical Sciences, Newcastle University, Newcastle-upon-Tyne, United Kingdom
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20
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Hermida AP, Sterina E, Schwab PP, Browning CM, Chapman HM, Marques Pinheiro AP, Mori N. Ultrabrief Right Unilateral Electroconvulsive Therapy for the Treatment of the Neuropsychiatric Symptoms of Dementia with Lewy Bodies. J ECT 2022; 38:39-44. [PMID: 34739421 DOI: 10.1097/yct.0000000000000809] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Dementia with Lewy bodies (DLB) is a debilitating disorder associated with a number of distressing neuropsychiatric symptoms. There is currently limited guidance regarding the most effective strategies of managing these symptoms, and both pharmacologic and nonpharmacologic strategies are often used. Electroconvulsive therapy (ECT) has been reported as a potential nonpharmacologic method to alleviate some of these debilitating neuropsychiatric symptoms. However, there remains a paucity of evidence in current literature. This report aims to add to existing literature regarding ECT in DLB by highlighting successful treatment in seven cases. METHODS Our study is a retrospective case series of 7 patients with DLB who received treatment with ultrabrief (UB) right unilateral (RUL) ECT for the treatment of agitation and depressive symptoms. Participants included patients with a diagnosis of DLB who were admitted to Emory University Hospital at Wesley Woods from 2011 to 2020 presenting with agitation and/or depressive symptoms after failing pharmacologic intervention. Patients underwent UB RUL ECT administered by a board-certified psychiatrist. After treatment, Pittsburg Agitation Scale and Clinical Global Impression-Improvement scales were recorded as measures of agitation and clinical improvement, respectively. RESULTS All 7 patients responded to UB RUL ECT with marked improvement in their presenting symptoms of agitation and/or depression without significant adverse effects from treatment. CONCLUSIONS Ultrabrief RUL ECT seems to be a safe and effective treatment of the agitative and depressive features of DLB.
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Affiliation(s)
| | | | | | - Cody Michael Browning
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA
| | - Hannah M Chapman
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA
| | | | - Neil Mori
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA
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21
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Payne S, Shofer JB, Shutes-David A, Li G, Jankowski A, Dean P, Tsuang D. Correlates of Conversion from Mild Cognitive Impairment to Dementia with Lewy Bodies: Data from the National Alzheimer's Coordinating Center. J Alzheimers Dis 2022; 86:1643-1654. [PMID: 35213374 PMCID: PMC9536845 DOI: 10.3233/jad-215428] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Many patients with dementia with Lewy bodies (DLB) miss out on the best standards of care and psychosocial support due to diagnostic delays or inaccuracies following symptom onset. OBJECTIVE This study seeks to identify baseline characteristics in individuals with mild cognitive impairment (MCI) that correlate with eventual conversion to DLB or Alzheimer's disease (AD). METHODS Baseline neuropsychological and neuropsychiatric data were analyzed in National Alzheimer's Coordinating Center participants who completed the Uniform Data Set between 2006 and 2020 and subsequently converted from MCI to DLB or AD (n = 1632). RESULTS Only 6% of participants with MCI converted to DLB. Among those who converted to DLB, multidomain amnestic MCI (aMCI) was the most common subtype at study entry. As part of logistic regression analyses, odds ratios (ORs) were estimated for conversion to DLB versus AD based on study-entry characteristics, adjusting for age, sex, education, and years to diagnosis. The strongest predictors of conversion to DLB (p≤0.0001) were nonamnestic MCI versus aMCI (OR 8.2, CI [5.0, 14]), multidomain MCI versus single-domain MCI (OR 2.7, CI [1.7. 4.2]), male sex (OR 4.2, CI [2.5, 7.1]), and presence of nighttime behaviors (OR 4.4 CI [2.8, 6.9]). CONCLUSION A diagnosis of prodromal DLB should be considered in individuals with MCI who present with prominent executive/visuospatial deficits, neuropsychiatric symptoms, and less memory impairment. Early diagnosis of DLB may guide treatment planning, including the avoidance of antipsychotic medications in patients who develop psychotic symptoms, caregiver support, and initiation of early treatment(s) once medications become available.
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Affiliation(s)
- Sarah Payne
- Geriatric Research, Education, and Clinical Center (GRECC), VA Puget Sound Health Care System, Seattle, WA, USA
| | - Jane B. Shofer
- Mental Illness Research, Education, and Clinical Center (MIRECC), VA Puget Sound Health Care System, Seattle, WA, USA
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA
| | - Andrew Shutes-David
- Geriatric Research, Education, and Clinical Center (GRECC), VA Puget Sound Health Care System, Seattle, WA, USA
- Mental Illness Research, Education, and Clinical Center (MIRECC), VA Puget Sound Health Care System, Seattle, WA, USA
| | - Ge Li
- Geriatric Research, Education, and Clinical Center (GRECC), VA Puget Sound Health Care System, Seattle, WA, USA
- Mental Illness Research, Education, and Clinical Center (MIRECC), VA Puget Sound Health Care System, Seattle, WA, USA
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA
| | - Adrienne Jankowski
- Geriatric Research, Education, and Clinical Center (GRECC), VA Puget Sound Health Care System, Seattle, WA, USA
| | - Pamela Dean
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA
- Mental Health Service, VA Puget Sound Health Care System, Seattle, WA, USA
| | - Debby Tsuang
- Geriatric Research, Education, and Clinical Center (GRECC), VA Puget Sound Health Care System, Seattle, WA, USA
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA
- Correspondence to: Debby Tsuang, MD, MS, VA Puget Sound, Health Care System, 1660 S Columbian Way, MS-182, Seattle WA, 98108, USA. Tel.: +1 206 277 1333;
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22
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Zhao J, Lu W, Ren Y, Fu Y, Martens YA, Shue F, Davis MD, Wang X, Chen K, Li F, Liu CC, Graff-Radford NR, Wszolek ZK, Younkin SG, Brafman DA, Ertekin-Taner N, Asmann YW, Dickson DW, Xu Z, Pan M, Han X, Kanekiyo T, Bu G. Apolipoprotein E regulates lipid metabolism and α-synuclein pathology in human iPSC-derived cerebral organoids. Acta Neuropathol 2021; 142:807-825. [PMID: 34453582 PMCID: PMC8500881 DOI: 10.1007/s00401-021-02361-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 07/31/2021] [Accepted: 08/17/2021] [Indexed: 12/25/2022]
Abstract
APOE4 is a strong genetic risk factor for Alzheimer's disease and Dementia with Lewy bodies; however, how its expression impacts pathogenic pathways in a human-relevant system is not clear. Here using human iPSC-derived cerebral organoid models, we find that APOE deletion increases α-synuclein (αSyn) accumulation accompanied with synaptic loss, reduction of GBA levels, lipid droplet accumulation and dysregulation of intracellular organelles. These phenotypes are partially rescued by exogenous apoE2 and apoE3, but not apoE4. Lipidomics analysis detects the increased fatty acid utilization and cholesterol ester accumulation in apoE-deficient cerebral organoids. Furthermore, APOE4 cerebral organoids have increased αSyn accumulation compared to those with APOE3. Carrying APOE4 also increases apoE association with Lewy bodies in postmortem brains from patients with Lewy body disease. Our findings reveal the predominant role of apoE in lipid metabolism and αSyn pathology in iPSC-derived cerebral organoids, providing mechanistic insights into how APOE4 drives the risk for synucleinopathies.
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Affiliation(s)
- Jing Zhao
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA
- Center for Regenerative Medicine, Neuroregeneration Laboratory, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Wenyan Lu
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA
- Center for Regenerative Medicine, Neuroregeneration Laboratory, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Yingxue Ren
- Department of Health Sciences Research, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Yuan Fu
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Yuka A Martens
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA
- Center for Regenerative Medicine, Neuroregeneration Laboratory, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Francis Shue
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Mary D Davis
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA
- Center for Regenerative Medicine, Neuroregeneration Laboratory, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Xue Wang
- Department of Health Sciences Research, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Kai Chen
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Fuyao Li
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Chia-Chen Liu
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA
| | | | | | - Steven G Younkin
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - David A Brafman
- School of Biological & Health Systems Engineering, Arizona State University, Tempe, AZ, 85287, USA
| | - Nilüfer Ertekin-Taner
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA
- Department of Neurology, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Yan W Asmann
- Department of Health Sciences Research, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Dennis W Dickson
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Ziying Xu
- Barshop Institute for Longevity and Aging Studies, University of Texas Health Science Center At San Antonio, San Antonio, TX, 78229, USA
| | - Meixia Pan
- Barshop Institute for Longevity and Aging Studies, University of Texas Health Science Center At San Antonio, San Antonio, TX, 78229, USA
| | - Xianlin Han
- Barshop Institute for Longevity and Aging Studies, University of Texas Health Science Center At San Antonio, San Antonio, TX, 78229, USA
- Department of Medicine, University of Texas Health Science Center At San Antonio, San Antonio, TX, 78229, USA
| | - Takahisa Kanekiyo
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA
- Center for Regenerative Medicine, Neuroregeneration Laboratory, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Guojun Bu
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA.
- Center for Regenerative Medicine, Neuroregeneration Laboratory, Mayo Clinic, Jacksonville, FL, 32224, USA.
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23
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Chiu PY, Wei CY, Hung GU, Wu SL. Motor Dysfunction Questionnaire and Dopamine Transporter Imaging Composite Scale Improve Differentiating Dementia With Lewy Bodies From Alzheimer's Disease With Motor Dysfunction. Front Aging Neurosci 2021; 13:709215. [PMID: 34456711 PMCID: PMC8385672 DOI: 10.3389/fnagi.2021.709215] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 07/13/2021] [Indexed: 01/18/2023] Open
Abstract
Objective: Characteristic parkinsonism is the major comorbidity of dementia with Lewy bodies (DLB). We aimed to differentiate DLB from Alzheimer's disease (AD) with motor dysfunction using a composite scale with a characteristic motor dysfunction questionnaire (MDQ) and dopamine transporter (DAT) imaging. It could help detect DLB easily in healthcare settings without movement disorder specialists. Methods: This is a two-phase study. In the design phase, seven questions were selected and composed of a novel MDQ. In the test phase, all participants with DLB, AD, or non-dementia (ND) control completed dementia and parkinsonism survey, the novel designed questionnaire, DAT imaging, and composite scales of MDQ and DAT. The cutoff scores of the MDQ, semiquantitative analysis of the striatal–background ratio (SBR) and visual rating of DAT, and the composite scale of MDQ and DAT for discriminating DLB from AD or ND were derived and compared. Results: A total of 277 participants were included in this study (126 with DLB, 86 with AD, and 65 with ND). Compared with the AD or ND groups, the DLB group showed a significantly higher frequency in all seven items in the MDQ and a significantly lower SBR. For discrimination of DLB from non-DLB with MDQ, SBR, and composite scale, the cutoff scores of 3/2, 1.37/1.38, and 6/5 were suggested for the diagnosis of DLB with the sensitivities/specificities of 0.91/0.72, 0.91/0.80, and 0.87/0.93, respectively. The composite scale significantly improved the accuracy of discrimination compared with either the MDQ or SBR. Conclusion: This study showed that the novel designed simple questionnaire was a practical screening tool and had similar power to DAT scanning to detect DLB. The questionnaire can be applied in clinical practice and population studies for screening DLB. In addition, the composite scale of MDQ and DAT imaging further improved the diagnostic accuracy, indicating the superiority of the dual-model diagnostic tool.
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Affiliation(s)
- Pai-Yi Chiu
- Department of Neurology, Show Chwan Memorial Hospital, Changhua, Taiwan.,Department of Nursing, College of Nursing and Health Sciences, Da-Yeh University, Changhua, Taiwan
| | - Cheng-Yu Wei
- Department of Neurology, Chang Bing Show Chwan Memorial Hospital, Changhua, Taiwan
| | - Guang-Uei Hung
- Department of Nuclear Medicine, Chang Bing Show Chwan Memorial Hospital, Changhua, Taiwan
| | - Shey-Lin Wu
- Department of Neurology, Changhua Christian Hospital, Changhua, Taiwan.,Department of Biomedical Sciences, Da-Yeh University,Changhua, Taiwan
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24
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Milán-Tomás Á, Fernández-Matarrubia M, Rodríguez-Oroz MC. Lewy Body Dementias: A Coin with Two Sides? Behav Sci (Basel) 2021; 11:94. [PMID: 34206456 PMCID: PMC8301188 DOI: 10.3390/bs11070094] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 06/12/2021] [Accepted: 06/15/2021] [Indexed: 02/07/2023] Open
Abstract
Lewy body dementias (LBDs) consist of dementia with Lewy bodies (DLB) and Parkinson's disease dementia (PDD), which are clinically similar syndromes that share neuropathological findings with widespread cortical Lewy body deposition, often with a variable degree of concomitant Alzheimer pathology. The objective of this article is to provide an overview of the neuropathological and clinical features, current diagnostic criteria, biomarkers, and management of LBD. Literature research was performed using the PubMed database, and the most pertinent articles were read and are discussed in this paper. The diagnostic criteria for DLB have recently been updated, with the addition of indicative and supportive biomarker information. The time interval of dementia onset relative to parkinsonism remains the major distinction between DLB and PDD, underpinning controversy about whether they are the same illness in a different spectrum of the disease or two separate neurodegenerative disorders. The treatment for LBD is only symptomatic, but the expected progression and prognosis differ between the two entities. Diagnosis in prodromal stages should be of the utmost importance, because implementing early treatment might change the course of the illness if disease-modifying therapies are developed in the future. Thus, the identification of novel biomarkers constitutes an area of active research, with a special focus on α-synuclein markers.
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Affiliation(s)
- Ángela Milán-Tomás
- Department of Neurology, Clínica Universidad de Navarra, 28027 Madrid, Spain;
| | - Marta Fernández-Matarrubia
- Department of Neurology, Clínica Universidad de Navarra, 31008 Pamplona, Spain;
- IdiSNA, Navarra Institute for Health Research, 31008 Pamplona, Spain
| | - María Cruz Rodríguez-Oroz
- Department of Neurology, Clínica Universidad de Navarra, 28027 Madrid, Spain;
- Department of Neurology, Clínica Universidad de Navarra, 31008 Pamplona, Spain;
- IdiSNA, Navarra Institute for Health Research, 31008 Pamplona, Spain
- CIMA, Center of Applied Medical Research, Universidad de Navarra, Neurosciences Program, 31008 Pamplona, Spain
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25
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Bentley A, Morgan T, Salifu Y, Walshe C. Exploring the experiences of living with Lewy body dementia: An integrative review. J Adv Nurs 2021; 77:4632-4645. [PMID: 34146346 DOI: 10.1111/jan.14932] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 05/12/2021] [Accepted: 05/24/2021] [Indexed: 01/30/2023]
Abstract
AIM Lewy body dementia is a common neurodegenerative dementia with unique challenges in managing day-to-day life. A more in-depth multifaceted picture of the Lewy body dementia lived experience will enable identification of best practice and future research direction. The review aim was to explore experiences of people living with Lewy body dementia and their family carers. DESIGN Integrative review method informed by Whittemore and Knafl, supported by the information retrieval framework PALETTE. A convergent integrated approach enabled synthesis of key findings and theme identification. DATA SOURCES Medline, CINAHL, PsycINFO, AMED, and ALOIS databases were systematically searched to find studies published between 1995 and 2020. REVIEW METHODS Twenty-six articles from twenty studies were synthesized (from 1583 retrieved). Quality and relevance were appraised using the Mixed-Methods Appraisal Tool and Gough's 'Weight of Evidence' framework. Data management was supported by ATLAS.ti 8 and COVIDENCE software. RESULTS Four themes were identified: living with an uncertain diagnosis and prognosis; fear of the now - worry for the future; living with behavioural and psychiatric symptoms; and maintaining a social and emotional life. People reported difficulty finding information and support around diagnosis, disease progression and managing complex symptoms. The result is increased caregiver burden, grief and stress and reduced quality of life. CONCLUSION Delayed diagnosis and complex symptom burden means people are not getting the timely support and information they need to live and die well. Current evidence is largely quantitative, with a focus on family caregiver burden and unmet need. The challenge remains in how to capture a more holistic picture of the lived experience for people living with Lewy body dementia and those who care for them. IMPACT This review highlighted current knowledge and identified gaps in exploring the lived experience for people with Lewy body dementia and their families.
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Affiliation(s)
- Allison Bentley
- Cambridgeshire and Peterborough NHS Foundation Trust, Windsor Research Unit, Fulbourn Hospital, Cambridge, UK.,International Observatory on End of Life Care, Division of Health Research, Faculty of Health and Medicine, Health Innovation One, Lancaster University, Lancaster, UK
| | - Tessa Morgan
- Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
| | - Yakubu Salifu
- International Observatory on End of Life Care, Division of Health Research, Faculty of Health and Medicine, Health Innovation One, Lancaster University, Lancaster, UK
| | - Catherine Walshe
- International Observatory on End of Life Care, Division of Health Research, Faculty of Health and Medicine, Health Innovation One, Lancaster University, Lancaster, UK
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26
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Armstrong MJ, Paulson HL, Maixner SM, Fields JA, Lunde AM, Boeve BF, Manning C, Galvin JE, Taylor AS, Li Z. Protocol for an observational cohort study identifying factors predicting accurately end of life in dementia with Lewy bodies and promoting quality end-of-life experiences: the PACE-DLB study. BMJ Open 2021; 11:e047554. [PMID: 34039578 PMCID: PMC8160156 DOI: 10.1136/bmjopen-2020-047554] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
INTRODUCTION Dementia with Lewy bodies (DLB) is one of the most common degenerative dementias. Despite the fact that most individuals with DLB die from complications of the disease, little is known regarding what factors predict impending end of life or are associated with a quality end of life. METHODS AND ANALYSIS This is a multisite longitudinal cohort study. Participants are being recruited from five academic centres providing subspecialty DLB care and volunteers through the Lewy Body Dementia Association (not receiving specialty care). Dyads must be US residents, include individuals with a clinical diagnosis of DLB and at least moderate-to-severe dementia and include the primary caregiver, who must pass a brief cognitive screen. The first dyad was enrolled 25 February 2021; recruitment is ongoing. Dyads will attend study visits every 6 months through the end of life or 3 years. Study visits will occur in-person or virtually. Measures include demographics, DLB characteristics, caregiver considerations, quality of life and satisfaction with end-of-life experiences. For dyads where the individual with DLB dies, the caregiver will complete a final study visit 3 months after the death to assess grief, recovery and quality of the end-of-life experience. Terminal trend models will be employed to identify significant predictors of approaching end of life (death in the next 6 months). Similar models will assess caregiver factors (eg, grief, satisfaction with end-of-life experience) after the death of the individual with DLB. A qualitative descriptive analysis approach will evaluate interview transcripts regarding end-of-life experiences. ETHICS AND DISSEMINATION This study was approved by the University of Florida institutional review board (IRB202001438) and is listed on clinicaltrials.gov (NCT04829656). Data sharing follows National Institutes of Health policies. Study results will be disseminated via traditional scientific strategies (conferences, publications) and through collaborating with the Lewy Body Dementia Association, National Institute on Aging and other partnerships.
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Affiliation(s)
- Melissa J Armstrong
- Neurology, University of Florida College of Medicine, Gainesville, Florida, USA
| | | | - Susan M Maixner
- Psychiatry, University of Michigan, Ann Arbor, Michigan, USA
| | - Julie A Fields
- Psychiatry and Psychology, Mayo Clinic Rochester, Rochester, Minnesota, USA
| | - Angela M Lunde
- Psychiatry and Psychology, Mayo Clinic Rochester, Rochester, Minnesota, USA
| | | | - Carol Manning
- Neurology, University of Virginia, Charlottesville, Virginia, USA
| | - James E Galvin
- Neurology, University of Miami Miller School of Medicine, Miami, Florida, USA
| | | | - Zhigang Li
- Biostatistics, University of Florida College of Medicine, Gainesville, Florida, USA
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27
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Olivieri P, Lebouvier T, Hardouin JB, Courtemanche H, Le Dily S, Barbin L, Pallardy A, Derkinderen P, Boutoleau-Bretonnière C. LeSCoD: a new clinical scale for the detection of Lewy body disease in neurocognitive disorders. J Neurol 2021; 268:3886-3896. [PMID: 33830336 DOI: 10.1007/s00415-021-10539-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 03/23/2021] [Accepted: 03/29/2021] [Indexed: 11/24/2022]
Abstract
BACKGROUND Dementia with Lewy bodies remains underdiagnosed in clinical practice mainly because of the low sensitivity of existing diagnostic criteria and a strong overlap with Alzheimer's pathology that can mask the Lewy phenotype. OBJECTIVE The objective of this study was therefore to develop and validate a new clinical scale designed to detect signs of Lewy body disease, called LeSCoD for Lewy body Screening scale in Cognitive Disorders. METHODS 128 patients who fulfilled the clinical criteria of dementia with Lewy bodies (DLB; n = 32), Alzheimer's disease (AD; n = 77) or both (n = 19) was prospectively enrolled. 18F-DOPA PET imaging and/or CSF biomarkers were available in some patients. LeSCoD scale was systematically administered and the potential correlation with 18F-DOPA PET imaging was evaluated in a subgroup of patients. RESULTS LeSCoD scale showed robust internal and external validity. We determined a cut-off of 10 above which the sensitivity and specificity for Lewy body disease diagnosis were 86% and 95%, respectively. The LeSCoD scale correlated with striatal dopamine uptake in 18F-DOPA PET. CONCLUSION LeSCoD scale is a simple and reliable tool for the evaluation of Lewy body disease in routine clinical practice, with a higher sensitivity and specificity than the existing criteria. It might be an alternative to the use of dopamine-specific imaging.
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Affiliation(s)
- Pauline Olivieri
- Department of Neurology of Memory and Language, GHU Paris Psychiatry and Neurosciences, Hôpital Sainte Anne, 75014, Paris, France.,Université de Paris, 75006, Paris, France
| | - Thibaud Lebouvier
- University of Lille, Inserm U1172, CHU Lille, DISTALZ, Lille, France
| | - Jean-Benoît Hardouin
- UMR INSERM 1246-SPHERE "Methods in Patient-Centered Outcomes and Health Research", Université de Nantes, Université de Tours, Tours, France.,Unit of Methodology and Biostatistics, Université de Nantes, Nantes, France
| | - Hélène Courtemanche
- Centre Mémoire Ressource et Recherche (CMRR), Department of Neurology, CHU Nantes, 44093, Nantes, France.,INSERM CIC 04, Nantes, France
| | | | | | | | | | - Claire Boutoleau-Bretonnière
- Centre Mémoire Ressource et Recherche (CMRR), Department of Neurology, CHU Nantes, 44093, Nantes, France. .,INSERM CIC 04, Nantes, France. .,Claire Boutoleau-Bretonnière, Centre Mémoire Ressource et Recherche (CMRR), Centre Hospitalier Universitaire de Nantes Hôpital Laennec, Boulevard Jacques Monod, 44000, Nantes, France.
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28
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Goldman JG, Forsberg LK, Boeve BF, Armstrong MJ, Irwin DJ, Ferman TJ, Galasko D, Galvin JE, Kaufer D, Leverenz J, Lippa CF, Marder K, Abler V, Biglan K, Irizarry M, Keller B, Munsie L, Nakagawa M, Taylor A, Graham T. Challenges and opportunities for improving the landscape for Lewy body dementia clinical trials. Alzheimers Res Ther 2020; 12:137. [PMID: 33121510 PMCID: PMC7597002 DOI: 10.1186/s13195-020-00703-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 10/08/2020] [Indexed: 01/05/2023]
Abstract
Lewy body dementia (LBD), including dementia with Lewy bodies and Parkinson's disease dementia, affects over a million people in the USA and has a substantial impact on patients, caregivers, and society. Symptomatic treatments for LBD, which can include cognitive, neuropsychiatric, autonomic, sleep, and motor features, are limited with only two drugs (cholinesterase inhibitors) currently approved by regulatory agencies for dementia in LBD. Clinical trials represent a top research priority, but there are many challenges in the development and implementation of trials in LBD. To address these issues and advance the field of clinical trials in the LBDs, the Lewy Body Dementia Association formed an Industry Advisory Council (LBDA IAC), in addition to its Research Center of Excellence program. The LBDA IAC comprises a diverse and collaborative group of experts from academic medical centers, pharmaceutical industries, and the patient advocacy foundation. The inaugural LBDA IAC meeting, held in June 2019, aimed to bring together this group, along with representatives from regulatory agencies, to address the topic of optimizing the landscape of LBD clinical trials. This review highlights the formation of the LBDA IAC, current state of LBD clinical trials, and challenges and opportunities in the field regarding trial design, study populations, diagnostic criteria, and biomarker utilization. Current gaps include a lack of standardized clinical assessment tools and evidence-based management strategies for LBD as well as difficulty and controversy in diagnosing LBD. Challenges in LBD clinical trials include the heterogeneity of LBD pathology and symptomatology, limited understanding of the trajectory of LBD cognitive and core features, absence of LBD-specific outcome measures, and lack of established standardized biologic, imaging, or genetic biomarkers that may inform study design. Demands of study participation (e.g., travel, duration, and frequency of study visits) may also pose challenges and impact trial enrollment, retention, and outcomes. There are opportunities to improve the landscape of LBD clinical trials by harmonizing clinical assessments and biomarkers across cohorts and research studies, developing and validating outcome measures in LBD, engaging the patient community to assess research needs and priorities, and incorporating biomarker and genotype profiling in study design.
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Affiliation(s)
- Jennifer G Goldman
- Parkinson's Disease and Movement Disorders Program, Shirley Ryan AbilityLab and Departments of Physical Medicine and Rehabilitation and Neurology, Northwestern University Feinberg School of Medicine, 355 E. Erie Street, Chicago, IL, 60611, USA.
| | | | | | - Melissa J Armstrong
- Department of Neurology, University of Florida College of Medicine, Gainesville, FL, USA
| | - David J Irwin
- Department of Neurology, Hospital of the University of Pennsylvania, Philadelphia, PA, USA
| | - Tanis J Ferman
- Department of Psychiatry and Psychology, Mayo Clinic, Jacksonville, FL, USA
| | - Doug Galasko
- Department of Neurosciences, UC San Diego, San Diego, CA, USA
| | - James E Galvin
- Department of Neurology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Daniel Kaufer
- Department of Neurology, University of North Carolina, Chapel Hill, NC, USA
| | - James Leverenz
- Lou Ruvo Center for Brain Health, Neurological Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Carol F Lippa
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Karen Marder
- Department of Neurology, Taub Institute, Sergievsky Center, Columbia University Irving Medical Center, New York, NY, USA
| | | | - Kevin Biglan
- Neuroscience Research, Eli Lilly and Company, Indianapolis, IN, USA
| | | | | | - Leanne Munsie
- Neuroscience Research, Eli Lilly and Company, Indianapolis, IN, USA
| | | | - Angela Taylor
- Lewy Body Dementia Association, S.W., Lilburn, GA, USA
| | - Todd Graham
- Lewy Body Dementia Association, S.W., Lilburn, GA, USA
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29
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Borda MG, Lopera F, Buritica O, Cerquera-Cleves C, Gonzalez MC, Garcia-Cifuentes E, Jaramillo-Jimenez A, Aguillon D, Bocanegra Y, Munoz-Ospina BE, Cano-Gutierrez CA, Patiño-Hernandez D, Tobón C, Santamaría-García H, Santacruz JM, Chavarro-Carvajal DA, Pinilla G, Morros-González E, Pantoja C, Quintana-Peña V, Valderrama J, Oppedal K, Aarsland D, Orozco J. Colombian consortium for the study of Lewy body dementia COL-DLB. J Neurol Sci 2020; 412:116807. [PMID: 32247904 DOI: 10.1016/j.jns.2020.116807] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 02/07/2020] [Accepted: 03/25/2020] [Indexed: 12/01/2022]
Affiliation(s)
- Miguel Germán Borda
- Centre for Age-Related Medicine (SESAM), Stavanger University Hospital, Stavanger, Norway; Semillero de Neurociencias y Envejecimiento, Instituto de Envejecimiento, Facultad de Medicina, Pontificia Universidad Javeriana, Bogotá, Colombia; Faculty of Health Sciences, University of Stavanger, Stavanger, Norway.
| | - Francisco Lopera
- Grupo de Neurociencias de Antioquia, Facultad de Medicina, Universidad de Antioquia, Medellín, Colombia
| | - Omar Buritica
- Grupo de Neurociencias de Antioquia, Facultad de Medicina, Universidad de Antioquia, Medellín, Colombia
| | | | | | - Elkin Garcia-Cifuentes
- Semillero de Neurociencias y Envejecimiento, Instituto de Envejecimiento, Facultad de Medicina, Pontificia Universidad Javeriana, Bogotá, Colombia; Grupo de Neurociencias de Antioquia, Facultad de Medicina, Universidad de Antioquia, Medellín, Colombia
| | - Alberto Jaramillo-Jimenez
- Centre for Age-Related Medicine (SESAM), Stavanger University Hospital, Stavanger, Norway; Grupo de Neurociencias de Antioquia, Facultad de Medicina, Universidad de Antioquia, Medellín, Colombia
| | - David Aguillon
- Grupo de Neurociencias de Antioquia, Facultad de Medicina, Universidad de Antioquia, Medellín, Colombia
| | - Yamile Bocanegra
- Grupo de Neurociencias de Antioquia, Facultad de Medicina, Universidad de Antioquia, Medellín, Colombia
| | | | - Carlos Alberto Cano-Gutierrez
- Semillero de Neurociencias y Envejecimiento, Instituto de Envejecimiento, Facultad de Medicina, Pontificia Universidad Javeriana, Bogotá, Colombia; Hospital Universitario San Ignacio, Bogotá, Colombia
| | - Daniela Patiño-Hernandez
- Semillero de Neurociencias y Envejecimiento, Instituto de Envejecimiento, Facultad de Medicina, Pontificia Universidad Javeriana, Bogotá, Colombia; Hospital Universitario San Ignacio, Bogotá, Colombia
| | - Carlos Tobón
- Grupo de Neurociencias de Antioquia, Facultad de Medicina, Universidad de Antioquia, Medellín, Colombia
| | - Hernando Santamaría-García
- Semillero de Neurociencias y Envejecimiento, Instituto de Envejecimiento, Facultad de Medicina, Pontificia Universidad Javeriana, Bogotá, Colombia; Hospital Universitario San Ignacio, Bogotá, Colombia
| | - José Manuel Santacruz
- Semillero de Neurociencias y Envejecimiento, Instituto de Envejecimiento, Facultad de Medicina, Pontificia Universidad Javeriana, Bogotá, Colombia; Hospital Universitario San Ignacio, Bogotá, Colombia.; Departamento de Psiquiatría y Salud Mental, Facultad de Medicina, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Diego Andrés Chavarro-Carvajal
- Semillero de Neurociencias y Envejecimiento, Instituto de Envejecimiento, Facultad de Medicina, Pontificia Universidad Javeriana, Bogotá, Colombia; Hospital Universitario San Ignacio, Bogotá, Colombia
| | | | - Elly Morros-González
- Semillero de Neurociencias y Envejecimiento, Instituto de Envejecimiento, Facultad de Medicina, Pontificia Universidad Javeriana, Bogotá, Colombia; Hospital Universitario San Ignacio, Bogotá, Colombia
| | | | | | | | - Ketil Oppedal
- Centre for Age-Related Medicine (SESAM), Stavanger University Hospital, Stavanger, Norway
| | - Dag Aarsland
- Centre for Age-Related Medicine (SESAM), Stavanger University Hospital, Stavanger, Norway; Department of Old Age Psychiatry, King's College, London, United Kingdom
| | - Jorge Orozco
- Fundación Valle del Lili Cali, Colombia; Universidad ICESI, Cali, Colombia
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30
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McKeith IG, Ferman TJ, Thomas AJ, Blanc F, Boeve BF, Fujishiro H, Kantarci K, Muscio C, O'Brien JT, Postuma RB, Aarsland D, Ballard C, Bonanni L, Donaghy P, Emre M, Galvin JE, Galasko D, Goldman JG, Gomperts SN, Honig LS, Ikeda M, Leverenz JB, Lewis SJG, Marder KS, Masellis M, Salmon DP, Taylor JP, Tsuang DW, Walker Z, Tiraboschi P. Research criteria for the diagnosis of prodromal dementia with Lewy bodies. Neurology 2020; 94:743-755. [PMID: 32241955 PMCID: PMC7274845 DOI: 10.1212/wnl.0000000000009323] [Citation(s) in RCA: 340] [Impact Index Per Article: 85.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 02/25/2020] [Indexed: 12/11/2022] Open
Abstract
The prodromal phase of dementia with Lewy bodies (DLB) includes (1) mild cognitive impairment (MCI), (2) delirium-onset, and (3) psychiatric-onset presentations. The purpose of our review is to determine whether there is sufficient information yet available to justify development of diagnostic criteria for each of these. Our goal is to achieve evidence-based recommendations for the recognition of DLB at a predementia, symptomatic stage. We propose operationalized diagnostic criteria for probable and possible mild cognitive impairment with Lewy bodies, which are intended for use in research settings pending validation for use in clinical practice. They are compatible with current criteria for other prodromal neurodegenerative disorders including Alzheimer and Parkinson disease. Although there is still insufficient evidence to propose formal criteria for delirium-onset and psychiatric-onset presentations of DLB, we feel that it is important to characterize them, raising the index of diagnostic suspicion and prioritizing them for further investigation.
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Affiliation(s)
- Ian G McKeith
- From the Newcastle University (I.G.M., A.J.T., P.D., J.P.T.); Mayo Clinic (T.J.F.), Jacksonville; University of Strasbourg (F.B.); Mayo Clinic (B.F.B., K.K.), Rochester; Nagoya University (H.F.), Kawasaki Memorial Hospital; Istituto Neurologico "Carlo Besta" (C.M., P.T.), Milan; Cambridge University (F.M.S.); McGill University (R.B.P.); King's College London and Stavanger University Hospital (D.A.); University of Exeter (C.B.); University of Chieti-Pescara (L.B.); Istanbul Faculty of Medicine (M.E.); University of Miami Miller School of Medicine (J.E.G.); University of California (D.G., D.P.S.), San Diego; Feinberg School of Medicine (J.G.G.); Massachusetts General Hospital (S.N.G.); Columbia University Irving Medical Center (L.S.H., K.S.M.); Osaka University (M.I.); Lou Ruvo Center of Brain Health (J.B.L.), Cleveland Clinic; University of Sydney (S.J.G.L.); Sunnybrook Health Sciences Centre (M.M.), University of Toronto; VA Puget Sound & University of Washington (D.W.T.); University College London (Z.W.).
| | - Tanis J Ferman
- From the Newcastle University (I.G.M., A.J.T., P.D., J.P.T.); Mayo Clinic (T.J.F.), Jacksonville; University of Strasbourg (F.B.); Mayo Clinic (B.F.B., K.K.), Rochester; Nagoya University (H.F.), Kawasaki Memorial Hospital; Istituto Neurologico "Carlo Besta" (C.M., P.T.), Milan; Cambridge University (F.M.S.); McGill University (R.B.P.); King's College London and Stavanger University Hospital (D.A.); University of Exeter (C.B.); University of Chieti-Pescara (L.B.); Istanbul Faculty of Medicine (M.E.); University of Miami Miller School of Medicine (J.E.G.); University of California (D.G., D.P.S.), San Diego; Feinberg School of Medicine (J.G.G.); Massachusetts General Hospital (S.N.G.); Columbia University Irving Medical Center (L.S.H., K.S.M.); Osaka University (M.I.); Lou Ruvo Center of Brain Health (J.B.L.), Cleveland Clinic; University of Sydney (S.J.G.L.); Sunnybrook Health Sciences Centre (M.M.), University of Toronto; VA Puget Sound & University of Washington (D.W.T.); University College London (Z.W.)
| | - Alan J Thomas
- From the Newcastle University (I.G.M., A.J.T., P.D., J.P.T.); Mayo Clinic (T.J.F.), Jacksonville; University of Strasbourg (F.B.); Mayo Clinic (B.F.B., K.K.), Rochester; Nagoya University (H.F.), Kawasaki Memorial Hospital; Istituto Neurologico "Carlo Besta" (C.M., P.T.), Milan; Cambridge University (F.M.S.); McGill University (R.B.P.); King's College London and Stavanger University Hospital (D.A.); University of Exeter (C.B.); University of Chieti-Pescara (L.B.); Istanbul Faculty of Medicine (M.E.); University of Miami Miller School of Medicine (J.E.G.); University of California (D.G., D.P.S.), San Diego; Feinberg School of Medicine (J.G.G.); Massachusetts General Hospital (S.N.G.); Columbia University Irving Medical Center (L.S.H., K.S.M.); Osaka University (M.I.); Lou Ruvo Center of Brain Health (J.B.L.), Cleveland Clinic; University of Sydney (S.J.G.L.); Sunnybrook Health Sciences Centre (M.M.), University of Toronto; VA Puget Sound & University of Washington (D.W.T.); University College London (Z.W.)
| | - Frédéric Blanc
- From the Newcastle University (I.G.M., A.J.T., P.D., J.P.T.); Mayo Clinic (T.J.F.), Jacksonville; University of Strasbourg (F.B.); Mayo Clinic (B.F.B., K.K.), Rochester; Nagoya University (H.F.), Kawasaki Memorial Hospital; Istituto Neurologico "Carlo Besta" (C.M., P.T.), Milan; Cambridge University (F.M.S.); McGill University (R.B.P.); King's College London and Stavanger University Hospital (D.A.); University of Exeter (C.B.); University of Chieti-Pescara (L.B.); Istanbul Faculty of Medicine (M.E.); University of Miami Miller School of Medicine (J.E.G.); University of California (D.G., D.P.S.), San Diego; Feinberg School of Medicine (J.G.G.); Massachusetts General Hospital (S.N.G.); Columbia University Irving Medical Center (L.S.H., K.S.M.); Osaka University (M.I.); Lou Ruvo Center of Brain Health (J.B.L.), Cleveland Clinic; University of Sydney (S.J.G.L.); Sunnybrook Health Sciences Centre (M.M.), University of Toronto; VA Puget Sound & University of Washington (D.W.T.); University College London (Z.W.)
| | - Bradley F Boeve
- From the Newcastle University (I.G.M., A.J.T., P.D., J.P.T.); Mayo Clinic (T.J.F.), Jacksonville; University of Strasbourg (F.B.); Mayo Clinic (B.F.B., K.K.), Rochester; Nagoya University (H.F.), Kawasaki Memorial Hospital; Istituto Neurologico "Carlo Besta" (C.M., P.T.), Milan; Cambridge University (F.M.S.); McGill University (R.B.P.); King's College London and Stavanger University Hospital (D.A.); University of Exeter (C.B.); University of Chieti-Pescara (L.B.); Istanbul Faculty of Medicine (M.E.); University of Miami Miller School of Medicine (J.E.G.); University of California (D.G., D.P.S.), San Diego; Feinberg School of Medicine (J.G.G.); Massachusetts General Hospital (S.N.G.); Columbia University Irving Medical Center (L.S.H., K.S.M.); Osaka University (M.I.); Lou Ruvo Center of Brain Health (J.B.L.), Cleveland Clinic; University of Sydney (S.J.G.L.); Sunnybrook Health Sciences Centre (M.M.), University of Toronto; VA Puget Sound & University of Washington (D.W.T.); University College London (Z.W.)
| | - Hiroshige Fujishiro
- From the Newcastle University (I.G.M., A.J.T., P.D., J.P.T.); Mayo Clinic (T.J.F.), Jacksonville; University of Strasbourg (F.B.); Mayo Clinic (B.F.B., K.K.), Rochester; Nagoya University (H.F.), Kawasaki Memorial Hospital; Istituto Neurologico "Carlo Besta" (C.M., P.T.), Milan; Cambridge University (F.M.S.); McGill University (R.B.P.); King's College London and Stavanger University Hospital (D.A.); University of Exeter (C.B.); University of Chieti-Pescara (L.B.); Istanbul Faculty of Medicine (M.E.); University of Miami Miller School of Medicine (J.E.G.); University of California (D.G., D.P.S.), San Diego; Feinberg School of Medicine (J.G.G.); Massachusetts General Hospital (S.N.G.); Columbia University Irving Medical Center (L.S.H., K.S.M.); Osaka University (M.I.); Lou Ruvo Center of Brain Health (J.B.L.), Cleveland Clinic; University of Sydney (S.J.G.L.); Sunnybrook Health Sciences Centre (M.M.), University of Toronto; VA Puget Sound & University of Washington (D.W.T.); University College London (Z.W.)
| | - Kejal Kantarci
- From the Newcastle University (I.G.M., A.J.T., P.D., J.P.T.); Mayo Clinic (T.J.F.), Jacksonville; University of Strasbourg (F.B.); Mayo Clinic (B.F.B., K.K.), Rochester; Nagoya University (H.F.), Kawasaki Memorial Hospital; Istituto Neurologico "Carlo Besta" (C.M., P.T.), Milan; Cambridge University (F.M.S.); McGill University (R.B.P.); King's College London and Stavanger University Hospital (D.A.); University of Exeter (C.B.); University of Chieti-Pescara (L.B.); Istanbul Faculty of Medicine (M.E.); University of Miami Miller School of Medicine (J.E.G.); University of California (D.G., D.P.S.), San Diego; Feinberg School of Medicine (J.G.G.); Massachusetts General Hospital (S.N.G.); Columbia University Irving Medical Center (L.S.H., K.S.M.); Osaka University (M.I.); Lou Ruvo Center of Brain Health (J.B.L.), Cleveland Clinic; University of Sydney (S.J.G.L.); Sunnybrook Health Sciences Centre (M.M.), University of Toronto; VA Puget Sound & University of Washington (D.W.T.); University College London (Z.W.)
| | - Cristina Muscio
- From the Newcastle University (I.G.M., A.J.T., P.D., J.P.T.); Mayo Clinic (T.J.F.), Jacksonville; University of Strasbourg (F.B.); Mayo Clinic (B.F.B., K.K.), Rochester; Nagoya University (H.F.), Kawasaki Memorial Hospital; Istituto Neurologico "Carlo Besta" (C.M., P.T.), Milan; Cambridge University (F.M.S.); McGill University (R.B.P.); King's College London and Stavanger University Hospital (D.A.); University of Exeter (C.B.); University of Chieti-Pescara (L.B.); Istanbul Faculty of Medicine (M.E.); University of Miami Miller School of Medicine (J.E.G.); University of California (D.G., D.P.S.), San Diego; Feinberg School of Medicine (J.G.G.); Massachusetts General Hospital (S.N.G.); Columbia University Irving Medical Center (L.S.H., K.S.M.); Osaka University (M.I.); Lou Ruvo Center of Brain Health (J.B.L.), Cleveland Clinic; University of Sydney (S.J.G.L.); Sunnybrook Health Sciences Centre (M.M.), University of Toronto; VA Puget Sound & University of Washington (D.W.T.); University College London (Z.W.)
| | - John T O'Brien
- From the Newcastle University (I.G.M., A.J.T., P.D., J.P.T.); Mayo Clinic (T.J.F.), Jacksonville; University of Strasbourg (F.B.); Mayo Clinic (B.F.B., K.K.), Rochester; Nagoya University (H.F.), Kawasaki Memorial Hospital; Istituto Neurologico "Carlo Besta" (C.M., P.T.), Milan; Cambridge University (F.M.S.); McGill University (R.B.P.); King's College London and Stavanger University Hospital (D.A.); University of Exeter (C.B.); University of Chieti-Pescara (L.B.); Istanbul Faculty of Medicine (M.E.); University of Miami Miller School of Medicine (J.E.G.); University of California (D.G., D.P.S.), San Diego; Feinberg School of Medicine (J.G.G.); Massachusetts General Hospital (S.N.G.); Columbia University Irving Medical Center (L.S.H., K.S.M.); Osaka University (M.I.); Lou Ruvo Center of Brain Health (J.B.L.), Cleveland Clinic; University of Sydney (S.J.G.L.); Sunnybrook Health Sciences Centre (M.M.), University of Toronto; VA Puget Sound & University of Washington (D.W.T.); University College London (Z.W.)
| | - Ronald B Postuma
- From the Newcastle University (I.G.M., A.J.T., P.D., J.P.T.); Mayo Clinic (T.J.F.), Jacksonville; University of Strasbourg (F.B.); Mayo Clinic (B.F.B., K.K.), Rochester; Nagoya University (H.F.), Kawasaki Memorial Hospital; Istituto Neurologico "Carlo Besta" (C.M., P.T.), Milan; Cambridge University (F.M.S.); McGill University (R.B.P.); King's College London and Stavanger University Hospital (D.A.); University of Exeter (C.B.); University of Chieti-Pescara (L.B.); Istanbul Faculty of Medicine (M.E.); University of Miami Miller School of Medicine (J.E.G.); University of California (D.G., D.P.S.), San Diego; Feinberg School of Medicine (J.G.G.); Massachusetts General Hospital (S.N.G.); Columbia University Irving Medical Center (L.S.H., K.S.M.); Osaka University (M.I.); Lou Ruvo Center of Brain Health (J.B.L.), Cleveland Clinic; University of Sydney (S.J.G.L.); Sunnybrook Health Sciences Centre (M.M.), University of Toronto; VA Puget Sound & University of Washington (D.W.T.); University College London (Z.W.)
| | - Dag Aarsland
- From the Newcastle University (I.G.M., A.J.T., P.D., J.P.T.); Mayo Clinic (T.J.F.), Jacksonville; University of Strasbourg (F.B.); Mayo Clinic (B.F.B., K.K.), Rochester; Nagoya University (H.F.), Kawasaki Memorial Hospital; Istituto Neurologico "Carlo Besta" (C.M., P.T.), Milan; Cambridge University (F.M.S.); McGill University (R.B.P.); King's College London and Stavanger University Hospital (D.A.); University of Exeter (C.B.); University of Chieti-Pescara (L.B.); Istanbul Faculty of Medicine (M.E.); University of Miami Miller School of Medicine (J.E.G.); University of California (D.G., D.P.S.), San Diego; Feinberg School of Medicine (J.G.G.); Massachusetts General Hospital (S.N.G.); Columbia University Irving Medical Center (L.S.H., K.S.M.); Osaka University (M.I.); Lou Ruvo Center of Brain Health (J.B.L.), Cleveland Clinic; University of Sydney (S.J.G.L.); Sunnybrook Health Sciences Centre (M.M.), University of Toronto; VA Puget Sound & University of Washington (D.W.T.); University College London (Z.W.)
| | - Clive Ballard
- From the Newcastle University (I.G.M., A.J.T., P.D., J.P.T.); Mayo Clinic (T.J.F.), Jacksonville; University of Strasbourg (F.B.); Mayo Clinic (B.F.B., K.K.), Rochester; Nagoya University (H.F.), Kawasaki Memorial Hospital; Istituto Neurologico "Carlo Besta" (C.M., P.T.), Milan; Cambridge University (F.M.S.); McGill University (R.B.P.); King's College London and Stavanger University Hospital (D.A.); University of Exeter (C.B.); University of Chieti-Pescara (L.B.); Istanbul Faculty of Medicine (M.E.); University of Miami Miller School of Medicine (J.E.G.); University of California (D.G., D.P.S.), San Diego; Feinberg School of Medicine (J.G.G.); Massachusetts General Hospital (S.N.G.); Columbia University Irving Medical Center (L.S.H., K.S.M.); Osaka University (M.I.); Lou Ruvo Center of Brain Health (J.B.L.), Cleveland Clinic; University of Sydney (S.J.G.L.); Sunnybrook Health Sciences Centre (M.M.), University of Toronto; VA Puget Sound & University of Washington (D.W.T.); University College London (Z.W.)
| | - Laura Bonanni
- From the Newcastle University (I.G.M., A.J.T., P.D., J.P.T.); Mayo Clinic (T.J.F.), Jacksonville; University of Strasbourg (F.B.); Mayo Clinic (B.F.B., K.K.), Rochester; Nagoya University (H.F.), Kawasaki Memorial Hospital; Istituto Neurologico "Carlo Besta" (C.M., P.T.), Milan; Cambridge University (F.M.S.); McGill University (R.B.P.); King's College London and Stavanger University Hospital (D.A.); University of Exeter (C.B.); University of Chieti-Pescara (L.B.); Istanbul Faculty of Medicine (M.E.); University of Miami Miller School of Medicine (J.E.G.); University of California (D.G., D.P.S.), San Diego; Feinberg School of Medicine (J.G.G.); Massachusetts General Hospital (S.N.G.); Columbia University Irving Medical Center (L.S.H., K.S.M.); Osaka University (M.I.); Lou Ruvo Center of Brain Health (J.B.L.), Cleveland Clinic; University of Sydney (S.J.G.L.); Sunnybrook Health Sciences Centre (M.M.), University of Toronto; VA Puget Sound & University of Washington (D.W.T.); University College London (Z.W.)
| | - Paul Donaghy
- From the Newcastle University (I.G.M., A.J.T., P.D., J.P.T.); Mayo Clinic (T.J.F.), Jacksonville; University of Strasbourg (F.B.); Mayo Clinic (B.F.B., K.K.), Rochester; Nagoya University (H.F.), Kawasaki Memorial Hospital; Istituto Neurologico "Carlo Besta" (C.M., P.T.), Milan; Cambridge University (F.M.S.); McGill University (R.B.P.); King's College London and Stavanger University Hospital (D.A.); University of Exeter (C.B.); University of Chieti-Pescara (L.B.); Istanbul Faculty of Medicine (M.E.); University of Miami Miller School of Medicine (J.E.G.); University of California (D.G., D.P.S.), San Diego; Feinberg School of Medicine (J.G.G.); Massachusetts General Hospital (S.N.G.); Columbia University Irving Medical Center (L.S.H., K.S.M.); Osaka University (M.I.); Lou Ruvo Center of Brain Health (J.B.L.), Cleveland Clinic; University of Sydney (S.J.G.L.); Sunnybrook Health Sciences Centre (M.M.), University of Toronto; VA Puget Sound & University of Washington (D.W.T.); University College London (Z.W.)
| | - Murat Emre
- From the Newcastle University (I.G.M., A.J.T., P.D., J.P.T.); Mayo Clinic (T.J.F.), Jacksonville; University of Strasbourg (F.B.); Mayo Clinic (B.F.B., K.K.), Rochester; Nagoya University (H.F.), Kawasaki Memorial Hospital; Istituto Neurologico "Carlo Besta" (C.M., P.T.), Milan; Cambridge University (F.M.S.); McGill University (R.B.P.); King's College London and Stavanger University Hospital (D.A.); University of Exeter (C.B.); University of Chieti-Pescara (L.B.); Istanbul Faculty of Medicine (M.E.); University of Miami Miller School of Medicine (J.E.G.); University of California (D.G., D.P.S.), San Diego; Feinberg School of Medicine (J.G.G.); Massachusetts General Hospital (S.N.G.); Columbia University Irving Medical Center (L.S.H., K.S.M.); Osaka University (M.I.); Lou Ruvo Center of Brain Health (J.B.L.), Cleveland Clinic; University of Sydney (S.J.G.L.); Sunnybrook Health Sciences Centre (M.M.), University of Toronto; VA Puget Sound & University of Washington (D.W.T.); University College London (Z.W.)
| | - James E Galvin
- From the Newcastle University (I.G.M., A.J.T., P.D., J.P.T.); Mayo Clinic (T.J.F.), Jacksonville; University of Strasbourg (F.B.); Mayo Clinic (B.F.B., K.K.), Rochester; Nagoya University (H.F.), Kawasaki Memorial Hospital; Istituto Neurologico "Carlo Besta" (C.M., P.T.), Milan; Cambridge University (F.M.S.); McGill University (R.B.P.); King's College London and Stavanger University Hospital (D.A.); University of Exeter (C.B.); University of Chieti-Pescara (L.B.); Istanbul Faculty of Medicine (M.E.); University of Miami Miller School of Medicine (J.E.G.); University of California (D.G., D.P.S.), San Diego; Feinberg School of Medicine (J.G.G.); Massachusetts General Hospital (S.N.G.); Columbia University Irving Medical Center (L.S.H., K.S.M.); Osaka University (M.I.); Lou Ruvo Center of Brain Health (J.B.L.), Cleveland Clinic; University of Sydney (S.J.G.L.); Sunnybrook Health Sciences Centre (M.M.), University of Toronto; VA Puget Sound & University of Washington (D.W.T.); University College London (Z.W.)
| | - Douglas Galasko
- From the Newcastle University (I.G.M., A.J.T., P.D., J.P.T.); Mayo Clinic (T.J.F.), Jacksonville; University of Strasbourg (F.B.); Mayo Clinic (B.F.B., K.K.), Rochester; Nagoya University (H.F.), Kawasaki Memorial Hospital; Istituto Neurologico "Carlo Besta" (C.M., P.T.), Milan; Cambridge University (F.M.S.); McGill University (R.B.P.); King's College London and Stavanger University Hospital (D.A.); University of Exeter (C.B.); University of Chieti-Pescara (L.B.); Istanbul Faculty of Medicine (M.E.); University of Miami Miller School of Medicine (J.E.G.); University of California (D.G., D.P.S.), San Diego; Feinberg School of Medicine (J.G.G.); Massachusetts General Hospital (S.N.G.); Columbia University Irving Medical Center (L.S.H., K.S.M.); Osaka University (M.I.); Lou Ruvo Center of Brain Health (J.B.L.), Cleveland Clinic; University of Sydney (S.J.G.L.); Sunnybrook Health Sciences Centre (M.M.), University of Toronto; VA Puget Sound & University of Washington (D.W.T.); University College London (Z.W.)
| | - Jennifer G Goldman
- From the Newcastle University (I.G.M., A.J.T., P.D., J.P.T.); Mayo Clinic (T.J.F.), Jacksonville; University of Strasbourg (F.B.); Mayo Clinic (B.F.B., K.K.), Rochester; Nagoya University (H.F.), Kawasaki Memorial Hospital; Istituto Neurologico "Carlo Besta" (C.M., P.T.), Milan; Cambridge University (F.M.S.); McGill University (R.B.P.); King's College London and Stavanger University Hospital (D.A.); University of Exeter (C.B.); University of Chieti-Pescara (L.B.); Istanbul Faculty of Medicine (M.E.); University of Miami Miller School of Medicine (J.E.G.); University of California (D.G., D.P.S.), San Diego; Feinberg School of Medicine (J.G.G.); Massachusetts General Hospital (S.N.G.); Columbia University Irving Medical Center (L.S.H., K.S.M.); Osaka University (M.I.); Lou Ruvo Center of Brain Health (J.B.L.), Cleveland Clinic; University of Sydney (S.J.G.L.); Sunnybrook Health Sciences Centre (M.M.), University of Toronto; VA Puget Sound & University of Washington (D.W.T.); University College London (Z.W.)
| | - Stephen N Gomperts
- From the Newcastle University (I.G.M., A.J.T., P.D., J.P.T.); Mayo Clinic (T.J.F.), Jacksonville; University of Strasbourg (F.B.); Mayo Clinic (B.F.B., K.K.), Rochester; Nagoya University (H.F.), Kawasaki Memorial Hospital; Istituto Neurologico "Carlo Besta" (C.M., P.T.), Milan; Cambridge University (F.M.S.); McGill University (R.B.P.); King's College London and Stavanger University Hospital (D.A.); University of Exeter (C.B.); University of Chieti-Pescara (L.B.); Istanbul Faculty of Medicine (M.E.); University of Miami Miller School of Medicine (J.E.G.); University of California (D.G., D.P.S.), San Diego; Feinberg School of Medicine (J.G.G.); Massachusetts General Hospital (S.N.G.); Columbia University Irving Medical Center (L.S.H., K.S.M.); Osaka University (M.I.); Lou Ruvo Center of Brain Health (J.B.L.), Cleveland Clinic; University of Sydney (S.J.G.L.); Sunnybrook Health Sciences Centre (M.M.), University of Toronto; VA Puget Sound & University of Washington (D.W.T.); University College London (Z.W.)
| | - Lawrence S Honig
- From the Newcastle University (I.G.M., A.J.T., P.D., J.P.T.); Mayo Clinic (T.J.F.), Jacksonville; University of Strasbourg (F.B.); Mayo Clinic (B.F.B., K.K.), Rochester; Nagoya University (H.F.), Kawasaki Memorial Hospital; Istituto Neurologico "Carlo Besta" (C.M., P.T.), Milan; Cambridge University (F.M.S.); McGill University (R.B.P.); King's College London and Stavanger University Hospital (D.A.); University of Exeter (C.B.); University of Chieti-Pescara (L.B.); Istanbul Faculty of Medicine (M.E.); University of Miami Miller School of Medicine (J.E.G.); University of California (D.G., D.P.S.), San Diego; Feinberg School of Medicine (J.G.G.); Massachusetts General Hospital (S.N.G.); Columbia University Irving Medical Center (L.S.H., K.S.M.); Osaka University (M.I.); Lou Ruvo Center of Brain Health (J.B.L.), Cleveland Clinic; University of Sydney (S.J.G.L.); Sunnybrook Health Sciences Centre (M.M.), University of Toronto; VA Puget Sound & University of Washington (D.W.T.); University College London (Z.W.)
| | - Manabu Ikeda
- From the Newcastle University (I.G.M., A.J.T., P.D., J.P.T.); Mayo Clinic (T.J.F.), Jacksonville; University of Strasbourg (F.B.); Mayo Clinic (B.F.B., K.K.), Rochester; Nagoya University (H.F.), Kawasaki Memorial Hospital; Istituto Neurologico "Carlo Besta" (C.M., P.T.), Milan; Cambridge University (F.M.S.); McGill University (R.B.P.); King's College London and Stavanger University Hospital (D.A.); University of Exeter (C.B.); University of Chieti-Pescara (L.B.); Istanbul Faculty of Medicine (M.E.); University of Miami Miller School of Medicine (J.E.G.); University of California (D.G., D.P.S.), San Diego; Feinberg School of Medicine (J.G.G.); Massachusetts General Hospital (S.N.G.); Columbia University Irving Medical Center (L.S.H., K.S.M.); Osaka University (M.I.); Lou Ruvo Center of Brain Health (J.B.L.), Cleveland Clinic; University of Sydney (S.J.G.L.); Sunnybrook Health Sciences Centre (M.M.), University of Toronto; VA Puget Sound & University of Washington (D.W.T.); University College London (Z.W.)
| | - James B Leverenz
- From the Newcastle University (I.G.M., A.J.T., P.D., J.P.T.); Mayo Clinic (T.J.F.), Jacksonville; University of Strasbourg (F.B.); Mayo Clinic (B.F.B., K.K.), Rochester; Nagoya University (H.F.), Kawasaki Memorial Hospital; Istituto Neurologico "Carlo Besta" (C.M., P.T.), Milan; Cambridge University (F.M.S.); McGill University (R.B.P.); King's College London and Stavanger University Hospital (D.A.); University of Exeter (C.B.); University of Chieti-Pescara (L.B.); Istanbul Faculty of Medicine (M.E.); University of Miami Miller School of Medicine (J.E.G.); University of California (D.G., D.P.S.), San Diego; Feinberg School of Medicine (J.G.G.); Massachusetts General Hospital (S.N.G.); Columbia University Irving Medical Center (L.S.H., K.S.M.); Osaka University (M.I.); Lou Ruvo Center of Brain Health (J.B.L.), Cleveland Clinic; University of Sydney (S.J.G.L.); Sunnybrook Health Sciences Centre (M.M.), University of Toronto; VA Puget Sound & University of Washington (D.W.T.); University College London (Z.W.)
| | - Simon J G Lewis
- From the Newcastle University (I.G.M., A.J.T., P.D., J.P.T.); Mayo Clinic (T.J.F.), Jacksonville; University of Strasbourg (F.B.); Mayo Clinic (B.F.B., K.K.), Rochester; Nagoya University (H.F.), Kawasaki Memorial Hospital; Istituto Neurologico "Carlo Besta" (C.M., P.T.), Milan; Cambridge University (F.M.S.); McGill University (R.B.P.); King's College London and Stavanger University Hospital (D.A.); University of Exeter (C.B.); University of Chieti-Pescara (L.B.); Istanbul Faculty of Medicine (M.E.); University of Miami Miller School of Medicine (J.E.G.); University of California (D.G., D.P.S.), San Diego; Feinberg School of Medicine (J.G.G.); Massachusetts General Hospital (S.N.G.); Columbia University Irving Medical Center (L.S.H., K.S.M.); Osaka University (M.I.); Lou Ruvo Center of Brain Health (J.B.L.), Cleveland Clinic; University of Sydney (S.J.G.L.); Sunnybrook Health Sciences Centre (M.M.), University of Toronto; VA Puget Sound & University of Washington (D.W.T.); University College London (Z.W.)
| | - Karen S Marder
- From the Newcastle University (I.G.M., A.J.T., P.D., J.P.T.); Mayo Clinic (T.J.F.), Jacksonville; University of Strasbourg (F.B.); Mayo Clinic (B.F.B., K.K.), Rochester; Nagoya University (H.F.), Kawasaki Memorial Hospital; Istituto Neurologico "Carlo Besta" (C.M., P.T.), Milan; Cambridge University (F.M.S.); McGill University (R.B.P.); King's College London and Stavanger University Hospital (D.A.); University of Exeter (C.B.); University of Chieti-Pescara (L.B.); Istanbul Faculty of Medicine (M.E.); University of Miami Miller School of Medicine (J.E.G.); University of California (D.G., D.P.S.), San Diego; Feinberg School of Medicine (J.G.G.); Massachusetts General Hospital (S.N.G.); Columbia University Irving Medical Center (L.S.H., K.S.M.); Osaka University (M.I.); Lou Ruvo Center of Brain Health (J.B.L.), Cleveland Clinic; University of Sydney (S.J.G.L.); Sunnybrook Health Sciences Centre (M.M.), University of Toronto; VA Puget Sound & University of Washington (D.W.T.); University College London (Z.W.)
| | - Mario Masellis
- From the Newcastle University (I.G.M., A.J.T., P.D., J.P.T.); Mayo Clinic (T.J.F.), Jacksonville; University of Strasbourg (F.B.); Mayo Clinic (B.F.B., K.K.), Rochester; Nagoya University (H.F.), Kawasaki Memorial Hospital; Istituto Neurologico "Carlo Besta" (C.M., P.T.), Milan; Cambridge University (F.M.S.); McGill University (R.B.P.); King's College London and Stavanger University Hospital (D.A.); University of Exeter (C.B.); University of Chieti-Pescara (L.B.); Istanbul Faculty of Medicine (M.E.); University of Miami Miller School of Medicine (J.E.G.); University of California (D.G., D.P.S.), San Diego; Feinberg School of Medicine (J.G.G.); Massachusetts General Hospital (S.N.G.); Columbia University Irving Medical Center (L.S.H., K.S.M.); Osaka University (M.I.); Lou Ruvo Center of Brain Health (J.B.L.), Cleveland Clinic; University of Sydney (S.J.G.L.); Sunnybrook Health Sciences Centre (M.M.), University of Toronto; VA Puget Sound & University of Washington (D.W.T.); University College London (Z.W.)
| | - David P Salmon
- From the Newcastle University (I.G.M., A.J.T., P.D., J.P.T.); Mayo Clinic (T.J.F.), Jacksonville; University of Strasbourg (F.B.); Mayo Clinic (B.F.B., K.K.), Rochester; Nagoya University (H.F.), Kawasaki Memorial Hospital; Istituto Neurologico "Carlo Besta" (C.M., P.T.), Milan; Cambridge University (F.M.S.); McGill University (R.B.P.); King's College London and Stavanger University Hospital (D.A.); University of Exeter (C.B.); University of Chieti-Pescara (L.B.); Istanbul Faculty of Medicine (M.E.); University of Miami Miller School of Medicine (J.E.G.); University of California (D.G., D.P.S.), San Diego; Feinberg School of Medicine (J.G.G.); Massachusetts General Hospital (S.N.G.); Columbia University Irving Medical Center (L.S.H., K.S.M.); Osaka University (M.I.); Lou Ruvo Center of Brain Health (J.B.L.), Cleveland Clinic; University of Sydney (S.J.G.L.); Sunnybrook Health Sciences Centre (M.M.), University of Toronto; VA Puget Sound & University of Washington (D.W.T.); University College London (Z.W.)
| | - John Paul Taylor
- From the Newcastle University (I.G.M., A.J.T., P.D., J.P.T.); Mayo Clinic (T.J.F.), Jacksonville; University of Strasbourg (F.B.); Mayo Clinic (B.F.B., K.K.), Rochester; Nagoya University (H.F.), Kawasaki Memorial Hospital; Istituto Neurologico "Carlo Besta" (C.M., P.T.), Milan; Cambridge University (F.M.S.); McGill University (R.B.P.); King's College London and Stavanger University Hospital (D.A.); University of Exeter (C.B.); University of Chieti-Pescara (L.B.); Istanbul Faculty of Medicine (M.E.); University of Miami Miller School of Medicine (J.E.G.); University of California (D.G., D.P.S.), San Diego; Feinberg School of Medicine (J.G.G.); Massachusetts General Hospital (S.N.G.); Columbia University Irving Medical Center (L.S.H., K.S.M.); Osaka University (M.I.); Lou Ruvo Center of Brain Health (J.B.L.), Cleveland Clinic; University of Sydney (S.J.G.L.); Sunnybrook Health Sciences Centre (M.M.), University of Toronto; VA Puget Sound & University of Washington (D.W.T.); University College London (Z.W.)
| | - Debby W Tsuang
- From the Newcastle University (I.G.M., A.J.T., P.D., J.P.T.); Mayo Clinic (T.J.F.), Jacksonville; University of Strasbourg (F.B.); Mayo Clinic (B.F.B., K.K.), Rochester; Nagoya University (H.F.), Kawasaki Memorial Hospital; Istituto Neurologico "Carlo Besta" (C.M., P.T.), Milan; Cambridge University (F.M.S.); McGill University (R.B.P.); King's College London and Stavanger University Hospital (D.A.); University of Exeter (C.B.); University of Chieti-Pescara (L.B.); Istanbul Faculty of Medicine (M.E.); University of Miami Miller School of Medicine (J.E.G.); University of California (D.G., D.P.S.), San Diego; Feinberg School of Medicine (J.G.G.); Massachusetts General Hospital (S.N.G.); Columbia University Irving Medical Center (L.S.H., K.S.M.); Osaka University (M.I.); Lou Ruvo Center of Brain Health (J.B.L.), Cleveland Clinic; University of Sydney (S.J.G.L.); Sunnybrook Health Sciences Centre (M.M.), University of Toronto; VA Puget Sound & University of Washington (D.W.T.); University College London (Z.W.)
| | - Zuzana Walker
- From the Newcastle University (I.G.M., A.J.T., P.D., J.P.T.); Mayo Clinic (T.J.F.), Jacksonville; University of Strasbourg (F.B.); Mayo Clinic (B.F.B., K.K.), Rochester; Nagoya University (H.F.), Kawasaki Memorial Hospital; Istituto Neurologico "Carlo Besta" (C.M., P.T.), Milan; Cambridge University (F.M.S.); McGill University (R.B.P.); King's College London and Stavanger University Hospital (D.A.); University of Exeter (C.B.); University of Chieti-Pescara (L.B.); Istanbul Faculty of Medicine (M.E.); University of Miami Miller School of Medicine (J.E.G.); University of California (D.G., D.P.S.), San Diego; Feinberg School of Medicine (J.G.G.); Massachusetts General Hospital (S.N.G.); Columbia University Irving Medical Center (L.S.H., K.S.M.); Osaka University (M.I.); Lou Ruvo Center of Brain Health (J.B.L.), Cleveland Clinic; University of Sydney (S.J.G.L.); Sunnybrook Health Sciences Centre (M.M.), University of Toronto; VA Puget Sound & University of Washington (D.W.T.); University College London (Z.W.)
| | - Pietro Tiraboschi
- From the Newcastle University (I.G.M., A.J.T., P.D., J.P.T.); Mayo Clinic (T.J.F.), Jacksonville; University of Strasbourg (F.B.); Mayo Clinic (B.F.B., K.K.), Rochester; Nagoya University (H.F.), Kawasaki Memorial Hospital; Istituto Neurologico "Carlo Besta" (C.M., P.T.), Milan; Cambridge University (F.M.S.); McGill University (R.B.P.); King's College London and Stavanger University Hospital (D.A.); University of Exeter (C.B.); University of Chieti-Pescara (L.B.); Istanbul Faculty of Medicine (M.E.); University of Miami Miller School of Medicine (J.E.G.); University of California (D.G., D.P.S.), San Diego; Feinberg School of Medicine (J.G.G.); Massachusetts General Hospital (S.N.G.); Columbia University Irving Medical Center (L.S.H., K.S.M.); Osaka University (M.I.); Lou Ruvo Center of Brain Health (J.B.L.), Cleveland Clinic; University of Sydney (S.J.G.L.); Sunnybrook Health Sciences Centre (M.M.), University of Toronto; VA Puget Sound & University of Washington (D.W.T.); University College London (Z.W.)
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Abstract
OBJECTIVES This case series considers three patients newly diagnosed with dementia with Lewy bodies (DLB) whilst under the care of mental health services. The cases demonstrate that the difficulties in diagnosing DLB as early symptoms may resemble other neurodegenerative disorders or psychiatric illnesses. CONCLUSION The role of consensus criteria in diagnosis is explored. The use of screening and assessment tools in early identification of DLB is also considered.
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Affiliation(s)
- Richard Goodwin
- Metro South Addiction and Mental Health Service, Australia; University of Queensland, Australia; and Bayside Community Mental Health Service, Australia
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Inskip M, Mavros Y, Sachdev PS, Fiatarone Singh MA. Promoting independence in Lewy body dementia through exercise (PRIDE) study: Protocol for a pilot study. Contemp Clin Trials Commun 2019; 16:100466. [PMID: 31701040 PMCID: PMC6831670 DOI: 10.1016/j.conctc.2019.100466] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Revised: 09/23/2019] [Accepted: 10/10/2019] [Indexed: 11/18/2022] Open
Abstract
Background Lewy Body dementia (LBD) is the second most prevalent neurodegenerative dementia. This form of dementia is notable for an aggressive disease course consisting of a combination of cognitive, Parkinsonian, affective, and physiological symptoms that significantly increase morbidity and mortality, and decrease life expectancy in this population compared to more common dementias. Additionally, those diagnosed with LBD are often excluded from trials evaluating exercise in similar diseases such as Alzheimer's disease or Parkinson's disease due to the complexity and concurrency of motor and cognitive symptoms. Consequently, there is scarce research evaluating the effect of exercise on individuals with LBD. Methods The PRomoting Independence in Lewy Body Dementia through Exercise (PRIDE) trial is a novel non-randomised, crossover pilot study consisting of an 8-week wait-list usual care period, followed by an 8-week exercise intervention targeting progressive resistance and balance training. The trial aim is to evaluate the effect of exercise on the primary outcome of functional independence and secondary outcomes including cognitive, physical, psychosocial and quality of life measures in people living with LBD and their caregivers. The intervention involves 3 supervised 1-h sessions per week (24 sessions in total) administered by an Accredited Exercise Physiologist in a clinical facility at the University of Sydney in Lidcombe, Australia. Discussion The PRIDE study is the first controlled trial to evaluate a robust exercise intervention within a LBD cohort and will provide crucial information required to inform robust future clinical trials. Trial registration Australia and New Zealand Trial Register (ANZCTR): ACTRN12616000466448; Key words: Lewy body; dementia; exercise; anabolic; functional independence.
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Affiliation(s)
- Michael Inskip
- The University of Sydney Faculty of Health Sciences, Discipline of Exercise and Sports Science, Cumberland Campus, Lidcombe, NSW, 2141, Australia
- Corresponding author. Office K220, The University of Sydney, Faculty of Health Sciences, Cumberland Campus, Lidcombe, NSW, 2141, Australia.
| | - Yorgi Mavros
- The University of Sydney Faculty of Health Sciences, Discipline of Exercise and Sports Science, Cumberland Campus, Lidcombe, NSW, 2141, Australia
| | - Perminder S. Sachdev
- Centre for Healthy Brain Ageing (CHeBA), School of Psychiatry, University of New South Wales, Randwick, NSW, 2031, Australia
- Neuropsychiatric Institute, The Prince of Wales Hospital, Randwick, NSW, 2031, Australia
| | - Maria A. Fiatarone Singh
- The University of Sydney Faculty of Health Sciences, Discipline of Exercise and Sports Science, Cumberland Campus, Lidcombe, NSW, 2141, Australia
- The University of Sydney, Sydney Medical School, Sydney, 2006, Australia
- Hebrew SeniorLife, Roslindale, MA, 02131, USA
- Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, MA, 02155, USA
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Abstract
Parkinson's disease (PD) and other synucleinopathies, namely dementia with Lewy bodies (DLB) and multiple system atrophy (MSA), are common degenerative neurological disorders that share synuclein pathology. Although certain cardinal features of parkinsonism, including bradykinesia and rigidity, respond well to levodopa, axial features, such as gait and balance impairment, are less reliably responsive to dopaminergic therapy and surgical interventions. Consequently, falls are common in PD and other synucleinopathies and are a major contributor toward injury and loss of independence. This underscores the need for appropriate fall risk assessment and implementation of preventative measures in all patients with parkinsonism. The aim of this review is therefore to explore modifiable and non-modifiable risk factors for falls in synucleinopathies. We next review and evaluate the evidence for pharmacological, nonpharmacological, and surgical approaches for fall prevention, and emphasize individualized and multifaceted approaches.
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34
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Mouriz R, Caamaño Ponte J, García Tuñas L, Dosil C, Facal D. Dementia and Challenging Behaviors in Gerontological Centers. A Case Report. Geriatrics (Basel) 2019; 4:E15. [PMID: 31023983 PMCID: PMC6473795 DOI: 10.3390/geriatrics4010015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 01/13/2019] [Accepted: 01/21/2019] [Indexed: 11/17/2022] Open
Abstract
Among the main challenges in geriatric and gerontological centers, we consider, central, the individualized attention to those elderly persons with challenging behaviors, to the extent that it is possible to design preventive strategies that delay cognitive deterioration and minimize consequences of behavior disorders. The first step will be to develop the correct interpretation of symptoms and deficits as a guarantee of a correct diagnosis which, in addition to not always being easy, has to be adapted to the progression of the disease. We present the case of a 68-year-old institutionalized individual, with an initial diagnosis of diffuse Lewy bodies dementia, analyzing his cognitive and behavioral evolution, and the pharmacological and non-pharmacological approach to the case.
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Affiliation(s)
- Romina Mouriz
- Gerontological Therapeutic Complex "A Veiga", Serge Lucense, Pobra de San Xiao, Láncara, 27360 Lugo, Spain.
- Department of Developmental Psychology, University of Santiago de Compostel, Santiago de Compostela, 15782 Galicia, Spain.
| | - José Caamaño Ponte
- Gerontological Therapeutic Complex "A Veiga", Serge Lucense, Pobra de San Xiao, Láncara, 27360 Lugo, Spain.
| | - Laura García Tuñas
- Gerontological Therapeutic Complex "A Veiga", Serge Lucense, Pobra de San Xiao, Láncara, 27360 Lugo, Spain.
| | - Carlos Dosil
- Gerontological Therapeutic Complex "A Veiga", Serge Lucense, Pobra de San Xiao, Láncara, 27360 Lugo, Spain.
- Department of Developmental Psychology, University of Santiago de Compostel, Santiago de Compostela, 15782 Galicia, Spain.
| | - David Facal
- Department of Developmental Psychology, University of Santiago de Compostel, Santiago de Compostela, 15782 Galicia, Spain.
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35
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Outeiro TF, Koss DJ, Erskine D, Walker L, Kurzawa-Akanbi M, Burn D, Donaghy P, Morris C, Taylor JP, Thomas A, Attems J, McKeith I. Dementia with Lewy bodies: an update and outlook. Mol Neurodegener 2019; 14:5. [PMID: 30665447 PMCID: PMC6341685 DOI: 10.1186/s13024-019-0306-8] [Citation(s) in RCA: 197] [Impact Index Per Article: 39.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 01/08/2019] [Indexed: 01/17/2023] Open
Abstract
Dementia with Lewy bodies (DLB) is an age-associated neurodegenerative disorder producing progressive cognitive decline that interferes with normal life and daily activities. Neuropathologically, DLB is characterised by the accumulation of aggregated α-synuclein protein in Lewy bodies and Lewy neurites, similar to Parkinson’s disease (PD). Extrapyramidal motor features characteristic of PD, are common in DLB patients, but are not essential for the clinical diagnosis of DLB. Since many PD patients develop dementia as disease progresses, there has been controversy about the separation of DLB from PD dementia (PDD) and consensus reports have put forward guidelines to assist clinicians in the identification and management of both syndromes. Here, we present basic concepts and definitions, based on our current understanding, that should guide the community to address open questions that will, hopefully, lead us towards improved diagnosis and novel therapeutic strategies for DLB and other synucleinopathies.
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Affiliation(s)
- Tiago Fleming Outeiro
- Institute of Neuroscience, The Medical School, Newcastle University, Framlington Place, Newcastle Upon Tyne, NE2 4HH, UK. .,Department of Experimental Neurodegeneration, Center for Nanoscale Microscopy and Molecular Physiology of the Brain, Center for Biostructural Imaging of Neurodegeneration, University Medical Center Göttingen, Göttingen, Germany. .,Max Planck Institute for Experimental Medicine, Göttingen, Germany.
| | - David J Koss
- Institute of Neuroscience, The Medical School, Newcastle University, Framlington Place, Newcastle Upon Tyne, NE2 4HH, UK
| | - Daniel Erskine
- Institute of Neuroscience, The Medical School, Newcastle University, Framlington Place, Newcastle Upon Tyne, NE2 4HH, UK
| | - Lauren Walker
- Institute of Neuroscience, The Medical School, Newcastle University, Framlington Place, Newcastle Upon Tyne, NE2 4HH, UK
| | - Marzena Kurzawa-Akanbi
- Institute of Neuroscience, The Medical School, Newcastle University, Framlington Place, Newcastle Upon Tyne, NE2 4HH, UK
| | - David Burn
- Institute of Neuroscience, The Medical School, Newcastle University, Framlington Place, Newcastle Upon Tyne, NE2 4HH, UK
| | - Paul Donaghy
- Institute of Neuroscience, The Medical School, Newcastle University, Framlington Place, Newcastle Upon Tyne, NE2 4HH, UK
| | - Christopher Morris
- Institute of Neuroscience, The Medical School, Newcastle University, Framlington Place, Newcastle Upon Tyne, NE2 4HH, UK
| | - John-Paul Taylor
- Institute of Neuroscience, The Medical School, Newcastle University, Framlington Place, Newcastle Upon Tyne, NE2 4HH, UK
| | - Alan Thomas
- Institute of Neuroscience, The Medical School, Newcastle University, Framlington Place, Newcastle Upon Tyne, NE2 4HH, UK
| | - Johannes Attems
- Institute of Neuroscience, The Medical School, Newcastle University, Framlington Place, Newcastle Upon Tyne, NE2 4HH, UK
| | - Ian McKeith
- Institute of Neuroscience, The Medical School, Newcastle University, Framlington Place, Newcastle Upon Tyne, NE2 4HH, UK.
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36
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Larsson V, Torisson G, Londos E. Relative survival in patients with dementia with Lewy bodies and Parkinson's disease dementia. PLoS One 2018; 13:e0202044. [PMID: 30096198 PMCID: PMC6086429 DOI: 10.1371/journal.pone.0202044] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Accepted: 07/26/2018] [Indexed: 12/29/2022] Open
Abstract
INTRODUCTION The understanding of survival in dementia with Lewy bodies (DLB) and Parkinson's disease dementia (PDD) is limited, as well as the impact of these diagnoses in an ageing co-morbid population. METHODS A retrospective study of 177 patients who received a DLB or PDD diagnosis between 1997-2014 at the Memory Clinic in Malmö, Sweden. Relative survival was evaluated by adjusting all-cause survival for expected survival, estimated from population life-tables, matched by sex, age and calendar year. Predictors of relative survival were investigated using multivariate regression modelling. RESULTS At follow-up, 143 (81%) patients were deceased with a median survival of 4.1 years (IQR 2.6-6.0). After 10-years follow-up, the standardized mortality ratio was 3.44 (95% CI 2.92-4.04). Relative survival was worse with younger age at diagnosis (excess hazard ratio [eHR] 0.91, 95% CI 0.88-0.94 per year of age), female sex (eHR 1.45, 95% CI 1.01-2.09) and lower mini-mental state examination (eHR 0.93, 95% CI 0.90-0.96). Subgroup analysis (n = 141) showed higher mortality in DLB patients who were positive for APOE ɛ4 (eHR 2.00, 95% CI 1.35-2.97). CONCLUSION The mortality is over three-times higher in patients diagnosed with dementia with Lewy bodies and Parkinson's disease dementia during a ten-year follow-up, compared to persons in the general population. Excess mortality is found primarily in younger patients, females and carriers of APOE ε4. Further research is needed regarding survival and possible interventions, including disease-modifying treatments, to improve care for this patient group.
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Affiliation(s)
- Victoria Larsson
- Clinical Memory Research Unit, Department of Clinical Sciences Malmo, Skåne University Hospital, Malmö, Sweden
- * E-mail:
| | - Gustav Torisson
- Department of Infectious Diseases, Skåne University Hospital, Malmö, Sweden
| | - Elisabet Londos
- Clinical Memory Research Unit, Department of Clinical Sciences Malmo, Skåne University Hospital, Malmö, Sweden
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37
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Flanigan PM, Khosravi MA, Leverenz JB, Tousi B. Color Vision Impairment Differentiates Alzheimer Dementia From Dementia With Lewy Bodies. J Geriatr Psychiatry Neurol 2018; 31:97-102. [PMID: 29658429 DOI: 10.1177/0891988718767579] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Dementia with Lewy bodies (DLB) is frequently misdiagnosed for Alzheimer dementia (AD), especially in its earlier stages. We characterized color vision impairment (CVI) in patients with DLB versus patients with AD to determine its usefulness in improving accuracy of early diagnosis. METHODS We retrospectively reviewed charts of patients with AD, DLB, and patients with mild cognitive impairment suspected to be in the prodromal phase of DLB (pro-DLB) or prodromal phase of AD (pro-AD). All patients underwent an online 15-hue color vision arrangement test. RESULTS Fifty-two patients were included in this study with a median age of 77 years, of which 44% were female. No significant differences in gender, age, or Montreal Cognitive Assessment existed among patients with AD (n = 15), pro-AD (n = 5), pro-DLB (n = 8), and DLB (n = 24). Of the 52 patients, 4 (2 AD, 1 DLB, and 1 pro-AD) had CVI history from a young age and were excluded from final analyses. New-onset CVI prevalence differed significantly based on diagnosis: patients with pro-AD (20%), patients with AD (15%), patients with pro-DLB (38%), and patients with DLB (78%, P < .001). In a stepwise multivariate logistic regression analysis to determine factors associated with CVI, "diagnosis type" as a binary variable (DLB or pro-DLB vs AD or pro-AD) was the only variable retained in the model (odds ratio = 9.8 [95% CI: 2.3-42.1], P < .001). CONCLUSIONS Color vision impairment in patients with DLB showed a prevalence similar to the core features of DLB (∼80%) and can be supportive to a diagnosis of DLB versus AD. Pending prospective confirmation of our findings, simple online color vision testing could be incorporated into multivariate diagnostic tools to possibly improve accuracy of early diagnosis of DLB.
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Affiliation(s)
- Patrick M Flanigan
- 1 Lou Ruvo Center for Brain Health, Cleveland Clinic, Cleveland, OH, USA.,2 Cleveland Clinic Lerner College of Medicine, Cleveland, OH, USA
| | - Mitra A Khosravi
- 1 Lou Ruvo Center for Brain Health, Cleveland Clinic, Cleveland, OH, USA.,3 School of Medicine, Case Western Reserve University, Cleveland, OH, USA
| | - James B Leverenz
- 1 Lou Ruvo Center for Brain Health, Cleveland Clinic, Cleveland, OH, USA
| | - Babak Tousi
- 1 Lou Ruvo Center for Brain Health, Cleveland Clinic, Cleveland, OH, USA
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38
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Kane JPM, Surendranathan A, Bentley A, Barker SAH, Taylor JP, Thomas AJ, Allan LM, McNally RJ, James PW, McKeith IG, Burn DJ, O'Brien JT. Clinical prevalence of Lewy body dementia. ALZHEIMERS RESEARCH & THERAPY 2018; 10:19. [PMID: 29448953 PMCID: PMC5815202 DOI: 10.1186/s13195-018-0350-6] [Citation(s) in RCA: 132] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 01/29/2018] [Indexed: 11/24/2022]
Abstract
Background The prevalence of dementia with Lewy bodies (DLB) and dementia in Parkinson’s disease (PDD) in routine clinical practice is unclear. Prevalence rates observed in clinical and population-based cohorts and neuropathological studies vary greatly. Small sample sizes and methodological factors in these studies limit generalisability to clinical practice. Methods We investigated prevalence in a case series across nine secondary care services over an 18-month period, to determine how commonly DLB and PDD cases are diagnosed and reviewed within two regions of the UK. Results Patients with DLB comprised 4.6% (95% CI 4.0–5.2%) of all dementia cases. DLB was represented in a significantly higher proportion of dementia cases in services in the North East (5.6%) than those in East Anglia (3.3%; χ2 = 13.6, p < 0.01). DLB prevalence in individual services ranged from 2.4 to 5.9%. PDD comprised 9.7% (95% CI 8.3–11.1%) of Parkinson’s disease cases. No significant variation in PDD prevalence was observed between regions or between services. Conclusions We found that the frequency of clinical diagnosis of DLB varied between geographical regions in the UK, and that the prevalence of both DLB and PDD was much lower than would be expected in this case series, suggesting considerable under-diagnosis of both disorders. The significant variation in DLB diagnostic rates between these two regions may reflect true differences in disease prevalence, but more likely differences in diagnostic practice. The systematic introduction of more standardised diagnostic practice could improve the rates of diagnosis of both conditions.
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Affiliation(s)
- Joseph P M Kane
- Institute of Neuroscience, Biomedical Research Building, Campus for Ageing and Vitality, Newcastle University, Newcastle upon Tyne, NE4 5PL, UK
| | - Ajenthan Surendranathan
- Department of Psychiatry, University of Cambridge School of Clinical Medicine, Box 189, Level E4 Cambridge Biomedical Campus, Cambridge, CB2 0SP, UK
| | - Allison Bentley
- Department of Psychiatry, University of Cambridge School of Clinical Medicine, Box 189, Level E4 Cambridge Biomedical Campus, Cambridge, CB2 0SP, UK
| | - Sally A H Barker
- Institute of Neuroscience, Biomedical Research Building, Campus for Ageing and Vitality, Newcastle University, Newcastle upon Tyne, NE4 5PL, UK
| | - John-Paul Taylor
- Institute of Neuroscience, Biomedical Research Building, Campus for Ageing and Vitality, Newcastle University, Newcastle upon Tyne, NE4 5PL, UK
| | - Alan J Thomas
- Institute of Neuroscience, Biomedical Research Building, Campus for Ageing and Vitality, Newcastle University, Newcastle upon Tyne, NE4 5PL, UK
| | - Louise M Allan
- Institute of Neuroscience, Biomedical Research Building, Campus for Ageing and Vitality, Newcastle University, Newcastle upon Tyne, NE4 5PL, UK
| | - Richard J McNally
- Institute of Health and Society, Sir James Spence Institute, Royal Victoria Infirmary, Newcastle University, Queen Victoria Road, Newcastle upon Tyne, NE1 4LP, UK
| | - Peter W James
- Institute of Health and Society, Sir James Spence Institute, Royal Victoria Infirmary, Newcastle University, Queen Victoria Road, Newcastle upon Tyne, NE1 4LP, UK
| | - Ian G McKeith
- Institute of Neuroscience, Biomedical Research Building, Campus for Ageing and Vitality, Newcastle University, Newcastle upon Tyne, NE4 5PL, UK
| | - David J Burn
- Institute of Neuroscience, Biomedical Research Building, Campus for Ageing and Vitality, Newcastle University, Newcastle upon Tyne, NE4 5PL, UK
| | - John T O'Brien
- Institute of Neuroscience, Biomedical Research Building, Campus for Ageing and Vitality, Newcastle University, Newcastle upon Tyne, NE4 5PL, UK. .,Department of Psychiatry, University of Cambridge School of Clinical Medicine, Box 189, Level E4 Cambridge Biomedical Campus, Cambridge, CB2 0SP, UK.
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Thomas AJ, Taylor JP, McKeith I, Bamford C, Burn D, Allan L, O'Brien J. Development of assessment toolkits for improving the diagnosis of the Lewy body dementias: feasibility study within the DIAMOND Lewy study. Int J Geriatr Psychiatry 2017; 32:1280-1304. [PMID: 27928840 PMCID: PMC5724510 DOI: 10.1002/gps.4609] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 08/30/2016] [Accepted: 09/26/2016] [Indexed: 12/01/2022]
Abstract
OBJECTIVE The Lewy body dementias (LBD, dementia with Lewy bodies and Parkinson's disease dementia) are the second most common cause of neurodegenerative dementia but remain under-recognised, with long delays from initial assessment to diagnosis. Whilst validated instruments have been developed for key symptoms, there is no brief instrument for overall diagnostic assessment suitable for routine practice. We here report the development of such assessment toolkits. METHODS We developed the LBD assessment toolkits in three stages. First, we conducted a systematic search for brief validated assessments for key symptoms and combined these into draft instruments. Second, we obtained feedback on acceptability and feasibility through two rounds of interviews with our patient and public involvement group. This led to modification of the toolkits. Finally, we piloted the toolkits in a feasibility study in routine dementia and Parkinson's disease services to produce final instruments suitable for routine clinical practice. RESULTS Eleven clinicians, working in both dementia/memory assessment and Parkinson's disease/movement disorder services, consented to pilot the assessment toolkits and provide feedback on their feasibility. Clinicians worked in routine health service (not academic) settings and piloted the draft toolkits by integrating them into their regular clinical assessments. Feedback obtained informally, by written comments and through qualitative interviews led to modifications and production of final acceptable versions. CONCLUSIONS We were able to address an important need, the under-diagnosis of LBD, by developing toolkits for improving the recognition and diagnosis of the LBD, which were acceptable to clinicians working in routine dementia and Parkinson's disease services. © 2016 The Authors. International Journal of Geriatric Psychiatry Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Alan J. Thomas
- Institute of Neuroscience and Newcastle University Institute for Ageing Newcastle UniversityNewcastle upon TyneUK
| | - John Paul Taylor
- Institute of Neuroscience and Newcastle University Institute for Ageing Newcastle UniversityNewcastle upon TyneUK
| | - Ian McKeith
- Institute of Neuroscience and Newcastle University Institute for Ageing Newcastle UniversityNewcastle upon TyneUK
| | - Claire Bamford
- Institute of Neuroscience and Newcastle University Institute for Ageing Newcastle UniversityNewcastle upon TyneUK
| | - David Burn
- Institute of Neuroscience and Newcastle University Institute for Ageing Newcastle UniversityNewcastle upon TyneUK
| | - Louise Allan
- Institute of Neuroscience and Newcastle University Institute for Ageing Newcastle UniversityNewcastle upon TyneUK
| | - John O'Brien
- Department of PsychiatryUniversity of CambridgeCambrigdeUK
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40
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Donaghy PC, Barnett N, Olsen K, Taylor JP, McKeith IG, O'Brien JT, Thomas AJ. Symptoms associated with Lewy body disease in mild cognitive impairment. Int J Geriatr Psychiatry 2017; 32:1163-1171. [PMID: 28556415 DOI: 10.1002/gps.4742] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 04/19/2017] [Indexed: 11/09/2022]
Abstract
OBJECTIVE Dementia with Lewy bodies (DLB) is associated with a range of cognitive and non-cognitive symptoms. We aimed to identify if some of these symptoms might aid early diagnosis of Lewy body disease in cases of mild cognitive impairment (MCI). METHODS Lewy body MCI (MCI-LB; n = 36), Alzheimer's disease MCI (MCI-AD; n = 21), DLB (n = 36), AD (n = 21) and control (n = 20) participants were recruited. An interview-based questionnaire about the presence of symptoms thought to be associated with Lewy body disease was completed by participants with, where possible, their carer/relative. The prevalence of each symptom was compared between MCI-LB and MCI-AD and between established DLB and AD, and a symptom scale based on these findings was devised. RESULTS Fluctuating concentration/attention; episodes of confusion; muscle rigidity; changes in hand-writing, gait and posture; falls; drooling; weak voice; symptoms of REM sleep behaviour disorder (RBD) and misjudging objects were more common in MCI-LB compared with MCI-AD, and also in DLB compared with AD. Hyposmia, tremor, slowness and autonomic symptoms were not specific to Lewy body disease. REM sleep behaviour disorder and hyposmia were reported to develop several years prior to the onset of cognitive symptoms in Lewy body disease. A 10-point symptom scale differentiated between MCI-LB and MCI-AD with a sensitivity of 83% and a specificity of 100%. CONCLUSIONS Drooling, misjudging objects and symptoms related to parkinsonism, fluctuating cognition and RBD may be the most characteristic symptoms of MCI-LB. Slowness, tremor, autonomic symptoms and hyposmia are all common in MCI-LB but are not specific to the disease. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- Paul C Donaghy
- Institute for Ageing and Institute of Neuroscience, Newcastle University, UK
| | - Nicola Barnett
- Institute for Ageing and Institute of Neuroscience, Newcastle University, UK
| | - Kirsty Olsen
- Institute for Ageing and Institute of Neuroscience, Newcastle University, UK
| | - John-Paul Taylor
- Institute for Ageing and Institute of Neuroscience, Newcastle University, UK
| | - Ian G McKeith
- Institute for Ageing and Institute of Neuroscience, Newcastle University, UK
| | | | - Alan J Thomas
- Institute for Ageing and Institute of Neuroscience, Newcastle University, UK
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Abstract
Parkinson disease psychosis (PDP) is a common phenomenon in Parkinson disease (PD) patients treated with dopaminergic drugs, and is associated with high morbidity and mortality. It also correlates with depression and dementia, and can contribute to considerable caregiver stress and burnout. While symptoms can be relieved by decreasing doses or number of anti-PD medications, this may lead to an unacceptable worsening of motor function. When general medical or psychiatric conditions have been ruled out, and decreasing dopaminergic agents is not effective in treating psychosis, therapies include atypical antipsychotics, primarily clozapine and quetiapine. Of these, clozapine is effective but is associated with a poor side-effect profile and the necessity for frequent blood draws. Clinicians prefer quetiapine for its theoretically better safety profile, although there is no evidence for efficacy in treating psychosis. All atypical antipsychotics are associated with increased mortality in this patient population. Cholinesterase inhibitors can ameliorate psychosis symptoms. The serotonin 5-HT2A receptor inverse agonist pimavanserin was recently approved by the US FDA for the treatment of PDP and may prove to be a more targeted therapy without the downsides of atypical antipsychotics.
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Increasing Precision of Clinical Diagnosis of Alzheimer's Disease Using a Combined Algorithm Incorporating Clinical and Novel Biomarker Data. Neurol Ther 2017; 6:83-95. [PMID: 28733959 PMCID: PMC5520815 DOI: 10.1007/s40120-017-0069-5] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Indexed: 11/11/2022] Open
Abstract
Establishing the in vivo diagnosis of Alzheimer’s disease (AD) or other dementias relies on clinical criteria; however, the accuracy of these criteria can be limited. The diagnostic accuracy is 77% for a clinical diagnosis of AD, even among experts. We performed a review through PubMed of articles related to specific diagnostic modalities, including APOE genotyping, cerebrospinal fluid (CSF) testing, fludeoxyglucose F 18 positron emission tomography (PET), amyloid PET, tau PET, computed tomography (CT), single-photon emission CT, magnetic resonance imaging (MRI), and B12 and thyroid-stimulating hormone screening, to determine the specificity and sensitivity of each test used in the clinical diagnosis of AD. We added a novel immunomagnetic reduction assay that provides ultrasensitivity for analyzing the levels of plasma tau and beta amyloid 42 (Aβ42). The sensitivity and specificity of the current diagnostic approach (structural CT or MRI with screening labs) remain low for clinical detection of AD and are primarily used to exclude other conditions. Because of limited diagnostic capabilities, physicians do not feel comfortable or skilled in rendering a clinical diagnosis of AD. Compounding this problem is the fact that inexpensive, minimally invasive diagnostic tests do not yet exist. Biomarkers (obtained through CSF testing or PET imaging), which are not routinely incorporated in clinical practice, correlate well with pathologic changes. While PET is particularly costly and difficult to assess, CSF measures of tau and beta amyloid are not costly, and these tests may be worthwhile when the tiered approach proposed here warrants further testing. There is a need for developing bloodborne biomarkers that can aid in the clinical diagnosis of AD. Here we present a streamlined questionnaire-enriched, biomarker-enriched approach that is more cost-effective than the current diagnosis of exclusion and is designed to increase clinical confidence for a diagnosis of dementia due to AD.
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McKeith IG, Boeve BF, Dickson DW, Halliday G, Taylor JP, Weintraub D, Aarsland D, Galvin J, Attems J, Ballard CG, Bayston A, Beach TG, Blanc F, Bohnen N, Bonanni L, Bras J, Brundin P, Burn D, Chen-Plotkin A, Duda JE, El-Agnaf O, Feldman H, Ferman TJ, Ffytche D, Fujishiro H, Galasko D, Goldman JG, Gomperts SN, Graff-Radford NR, Honig LS, Iranzo A, Kantarci K, Kaufer D, Kukull W, Lee VMY, Leverenz JB, Lewis S, Lippa C, Lunde A, Masellis M, Masliah E, McLean P, Mollenhauer B, Montine TJ, Moreno E, Mori E, Murray M, O'Brien JT, Orimo S, Postuma RB, Ramaswamy S, Ross OA, Salmon DP, Singleton A, Taylor A, Thomas A, Tiraboschi P, Toledo JB, Trojanowski JQ, Tsuang D, Walker Z, Yamada M, Kosaka K. Diagnosis and management of dementia with Lewy bodies: Fourth consensus report of the DLB Consortium. Neurology 2017; 89:88-100. [PMID: 28592453 PMCID: PMC5496518 DOI: 10.1212/wnl.0000000000004058] [Citation(s) in RCA: 2461] [Impact Index Per Article: 351.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 03/30/2017] [Indexed: 12/14/2022] Open
Abstract
The Dementia with Lewy Bodies (DLB) Consortium has refined its recommendations about the clinical and pathologic diagnosis of DLB, updating the previous report, which has been in widespread use for the last decade. The revised DLB consensus criteria now distinguish clearly between clinical features and diagnostic biomarkers, and give guidance about optimal methods to establish and interpret these. Substantial new information has been incorporated about previously reported aspects of DLB, with increased diagnostic weighting given to REM sleep behavior disorder and 123iodine-metaiodobenzylguanidine (MIBG) myocardial scintigraphy. The diagnostic role of other neuroimaging, electrophysiologic, and laboratory investigations is also described. Minor modifications to pathologic methods and criteria are recommended to take account of Alzheimer disease neuropathologic change, to add previously omitted Lewy-related pathology categories, and to include assessments for substantia nigra neuronal loss. Recommendations about clinical management are largely based upon expert opinion since randomized controlled trials in DLB are few. Substantial progress has been made since the previous report in the detection and recognition of DLB as a common and important clinical disorder. During that period it has been incorporated into DSM-5, as major neurocognitive disorder with Lewy bodies. There remains a pressing need to understand the underlying neurobiology and pathophysiology of DLB, to develop and deliver clinical trials with both symptomatic and disease-modifying agents, and to help patients and carers worldwide to inform themselves about the disease, its prognosis, best available treatments, ongoing research, and how to get adequate support.
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Read KB, LaPolla FWZ, Tolea MI, Galvin JE, Surkis A. Improving data collection, documentation, and workflow in a dementia screening study. J Med Libr Assoc 2017; 105:160-166. [PMID: 28377680 PMCID: PMC5370608 DOI: 10.5195/jmla.2017.221] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 09/01/2016] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND A clinical study team performing three multicultural dementia screening studies identified the need to improve data management practices and facilitate data sharing. A collaboration was initiated with librarians as part of the National Library of Medicine (NLM) informationist supplement program. The librarians identified areas for improvement in the studies' data collection, entry, and processing workflows. CASE PRESENTATION The librarians' role in this project was to meet needs expressed by the study team around improving data collection and processing workflows to increase study efficiency and ensure data quality. The librarians addressed the data collection, entry, and processing weaknesses through standardizing and renaming variables, creating an electronic data capture system using REDCap, and developing well-documented, reproducible data processing workflows. CONCLUSIONS NLM informationist supplements provide librarians with valuable experience in collaborating with study teams to address their data needs. For this project, the librarians gained skills in project management, REDCap, and understanding of the challenges and specifics of a clinical research study. However, the time and effort required to provide targeted and intensive support for one study team was not scalable to the library's broader user community.
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Ryu HJ, Kim M, Moon Y, Choi Y, Han JY, Galvin JE, Han SH. Validation of the Korean Version of the Lewy Body Composite Risk Score (K-LBCRS). J Alzheimers Dis 2016; 55:1395-1401. [PMID: 27834773 DOI: 10.3233/jad-160463] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The Lewy body composite risk score (LBCRS) is a useful clinical screening tool to help determine whether the dementia is related to Lewy body pathology. The purpose of this study is to verify reliability, validity, and diagnostic usefulness of Korean version of LBCRS (K-LBCRS). CDR-sum of boxes, Mini-Mental State Examination, and standardized scales related to cognition, mood, behavior, and motor function were administered to a total of 107 subjects, including 30 dementia with Lewy bodies (DLB), 54 Alzheimer's disease (AD), and 23 cognitively normal elderly people and their collateral informants. Internal consistency of the K-LBCRS was good with Cronbach's alpha of 0.85, and concurrent validity was also satisfactory, with K-LBCRS correlating highly with CDR-SB and other scales. The test-retest reliability was very high with a Pearson correlation coefficient of 0.97. The mean scores of K-LBCRS were significantly different among three groups, with DLB (6.2±2.4), AD (1.4±1.3), and controls (0.3±0.6). We identified a cut-off score of 3 as best to differentiate between DLB and AD, having AUC of 0.97 (95% CI 0.94-1.00), sensitivity 97%, specificity 83%, positive predictive value 76%, negative predictive value 98%, which is the same score suggested in the original study. This study shows K-LBCRS as a new useful screening tool for Korean DLB patients in clinical settings.
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Affiliation(s)
- Hui Jin Ryu
- Department of Neurology, Konkuk University Medical Center, Seoul, Republic of Korea
| | - Minyoung Kim
- Department of Neurology, Konkuk University Medical Center, Seoul, Republic of Korea
| | - Yeonsil Moon
- Department of Neurology, Konkuk University Medical Center, Seoul, Republic of Korea
| | - Yeji Choi
- Department of Neurology, Konkuk University Medical Center, Seoul, Republic of Korea
| | - Jee-Young Han
- Department of Neurology, Seoul National University, Bundang Hospital, Bundang, Kyungi-do, Republic of Korea
| | - James E Galvin
- Department of Integrated Medical Sciences, Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, USA
| | - Seol-Heui Han
- Department of Neurology, Konkuk University Medical Center, Seoul, Republic of Korea
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DADM: The first 2 years of the Alzheimer Association's open access journal to support the research and development of novel biomarkers and diagnostic approaches. Alzheimers Dement 2016; 12:755-7. [PMID: 27370207 DOI: 10.1016/j.jalz.2016.06.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Lewy body dementia – you can diagnose it in no time at all! BJPsych Int 2016. [DOI: 10.1192/s2056474000000969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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PANDORA'S BOX. BJPsych Int 2016; 13:24-25. [PMID: 29093890 PMCID: PMC5618896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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