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Bullen AL, Katz R, Poursadrolah S, Short SAP, Long DL, Cheung KL, Sharma S, Al-Rousan T, Fregoso A, Schulte J, Gutierrez OM, Shlipak MG, Cushman M, Ix JH, Rifkin DE. Plasma proenkephalin A and incident chronic kidney disease and albuminuria in the REasons for Geographic And Racial Differences in Stroke (REGARDS) cohort. BMC Nephrol 2024; 25:16. [PMID: 38200454 PMCID: PMC10782722 DOI: 10.1186/s12882-023-03432-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 12/07/2023] [Indexed: 01/12/2024] Open
Abstract
BACKGROUND Plasma proenkephalin A (PENK-A) is a precursor of active enkephalins. Higher blood concentrations have been associated with estimated glomerular filtration rate (eGFR) decline in European populations. Due to the significant disparity in incident chronic kidney disease (CKD) between White and Black people, we evaluated the association of PENK-A with incident CKD and other kidney outcomes among a biracial cohort in the U.S. METHODS In a nested cohort of 4,400 participants among the REasons for Geographic And Racial Differences in Stroke, we determined the association between baseline PENK-A concentration and incident CKD using the creatinine-cystatin C CKD-EPI 2021 equation without race coefficient, significant eGFR decline, and incident albuminuria between baseline and a follow-up visit 9.4 years later. We tested for race and sex interactions. We used inverse probability sampling weights to account for the sampling design. RESULTS At baseline, mean (SD) age was 64 (8) years, 49% were women, and 52% were Black participants. 8.5% developed CKD, 21% experienced ≥ 30% decline in eGFR and 18% developed albuminuria. There was no association between PENK-A and incident CKD and no difference by race or sex. However, higher PENK-A was associated with increased odds of progressive eGFR decline (OR: 1.12; 95% CI 1.00, 1.25). Higher PENK-A concentration was strongly associated with incident albuminuria among patients without diabetes mellitus (OR: 1.29; 95% CI 1.09, 1.53). CONCLUSION While PENK-A was not associated with incident CKD, its associations with progression of CKD and incident albuminuria, among patients without diabetes, suggest that it might be a useful tool in the evaluation of kidney disease among White and Black patients.
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Affiliation(s)
- Alexander L Bullen
- Nephrology Section, Veterans Affairs San Diego Healthcare System, La Jolla, CA, USA.
- Division of Nephrology and Hypertension, Department of Medicine, University of California San Diego, San Diego, CA, USA.
| | - Ronit Katz
- University of Washington, Seattle, WA, USA
| | - Sayna Poursadrolah
- Department of Medicine, University of California San Diego, San Diego, CA, USA
| | | | - D Leann Long
- Department of Biostatistics, School of Public Health, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Katharine L Cheung
- Division of Nephrology, Larner College of Medicine, University of Vermont, Burlington, VT, USA
| | - Shilpa Sharma
- Division of Nephrology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
- Nephrology Section, Veteran Affairs Greater Los Angeles Healthcare System, Los Angeles, CA, USA
| | - Tala Al-Rousan
- Division of Preventive Medicine, Department of Family Medicine and Public Health, University of California San Diego, San Diego, CA, USA
| | - Alma Fregoso
- School of Medicine, University of California San Diego, San Diego, CA, USA
| | | | - Orlando M Gutierrez
- Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Michael G Shlipak
- Kidney Health Research Collaborative, Department of Medicine, University of California, San Francisco, CA, USA
- Department of Medicine, San Francisco VA Medical Center, San Francisco, CA, USA
| | - Mary Cushman
- Department of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, VT, USA
- Department of Medicine, Larner College of Medicine, University of Vermont, Burlington, VT, USA
| | - Joachim H Ix
- Nephrology Section, Veterans Affairs San Diego Healthcare System, La Jolla, CA, USA
- Division of Nephrology and Hypertension, Department of Medicine, University of California San Diego, San Diego, CA, USA
| | - Dena E Rifkin
- Nephrology Section, Veterans Affairs San Diego Healthcare System, La Jolla, CA, USA
- Division of Nephrology and Hypertension, Department of Medicine, University of California San Diego, San Diego, CA, USA
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Cheung KL, Crews DC, Cushman M, Yuan Y, Wilkinson K, Long DL, Judd SE, Shlipak MG, Ix JH, Bullen AL, Warnock DG, Gutiérrez OM. Risk Factors for Incident CKD in Black and White Americans: The REGARDS Study. Am J Kidney Dis 2023; 82:11-21.e1. [PMID: 36621640 PMCID: PMC10293023 DOI: 10.1053/j.ajkd.2022.11.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 11/22/2022] [Indexed: 01/07/2023]
Abstract
RATIONALE & OBJECTIVE Little information exists on the incidence of and risk factors for chronic kidney disease (CKD) in contemporary US cohorts and whether risk factors differ by race, sex, or region in the United States. STUDY DESIGN Observational cohort study. SETTING & PARTICIPANTS 4,198 Black and 7,799 White participants aged at least 45 years, recruited from 2003 through 2007 across the continental United States, with baseline estimated glomerular filtration rate (eGFR)>60mL/min/1.73m2 and eGFR assessed again approximately 9 years later. EXPOSURES Age, sex, race (Black or White), region ("stroke belt" or other), education, income, systolic blood pressure, body mass index, diabetes, coronary heart disease, hyperlipidemia, smoking, and albuminuria. OUTCOMES (1) eGFR change and (2) incident CKD defined as eGFR<60mL/min/1.73m2 and≥40% decrease from baseline or kidney failure. ANALYTICAL APPROACH Linear regression and modified Poisson regression were used to determine the association of risk factors with eGFR change and incident CKD overall and stratified by race, sex, and region. RESULTS Mean age of participants was 63±8 (SD) years, 54% were female, and 35% were Black. After 9.4±1.0 years of follow-up, CKD developed in 9%. In an age-, sex-, and race-adjusted model, Black race (β =-0.13; P<0.001) was associated with higher risk of eGFR change, but this was attenuated in the fully adjusted model (β=0.02; P=0.5). Stroke belt residence was independently associated with eGFR change (β =-0.10; P<0.001) and incident CKD (relative risk, 1.14 [95% CI, 1.01-1.30]). Albuminuria was more strongly associated with eGFR change (β of-0.26 vs-0.17; P=0.01 for interaction) in Black compared with White participants. Results were similar for incident CKD. LIMITATIONS Persons of Hispanic ethnicity were excluded; unknown duration and/or severity of risk factors. CONCLUSIONS Established CKD risk factors accounted for higher risk of incident CKD in Black versus White individuals. Albuminuria was a stronger risk factor for eGFR decrease and incident CKD in Black compared with White individuals. Living in the US stroke belt is a novel risk factor for CKD.
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Affiliation(s)
- Katharine L Cheung
- Divisions of Nephrology, Larner College of Medicine at The University of Vermont, Burlington, Vermont.
| | - Deidra C Crews
- Division of Nephrology, Johns Hopkins University, Baltimore, Maryland
| | - Mary Cushman
- Hematology/Oncology, Department of Medicine, Larner College of Medicine at The University of Vermont, Burlington, Vermont
| | - Ya Yuan
- School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama
| | - Katherine Wilkinson
- Larner College of Medicine at The University of Vermont, Burlington, Vermont
| | - D Leann Long
- School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama
| | - Suzanne E Judd
- School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama
| | - Michael G Shlipak
- Division of Nephrology, University of California, San Francisco, San Francisco, California
| | - Joachim H Ix
- Division of Nephrology, University of California, San Diego, La Jolla, California
| | - Alexander L Bullen
- Division of Nephrology, University of California, San Diego, La Jolla, California
| | - David G Warnock
- Division of Nephrology, University of Alabama at Birmingham, Birmingham, Alabama
| | - Orlando M Gutiérrez
- Division of Nephrology, University of Alabama at Birmingham, Birmingham, Alabama
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Short SAP, Wilkinson K, Schulte J, Renteria MA, Cheung KL, Nicoli CD, Howard VJ, Cushman M. Plasma Pro-Enkephalin A and Incident Cognitive Impairment: The Reasons for Geographic and Racial Differences in Stroke Cohort. J Am Heart Assoc 2023:e029081. [PMID: 37260023 PMCID: PMC10381999 DOI: 10.1161/jaha.122.029081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Background Cardiovascular disease is a risk factor for cognitive impairment. Evidence links both lower and higher concentration of the circulating opioid pro-enkephalin A (PENK-A) with stroke risk. We studied the association of plasma PENK-A with incident cognitive impairment. Methods and Results REGARDS (Reasons for Geographic and Racial Differences in Stroke) is a prospective cohort study of 30 239 adults enrolled from 2003 to 2007. Baseline PENK-A was measured in a nested case-control study of 462 participants who developed cognitive impairment over 4.7 years, and 556 controls. Logistic regression and spline plots adjusted for confounders estimated odds ratios (ORs) of cognitive impairment by baseline PENK-A. Interaction terms tested for differences in associations by age, sex, and race. Baseline PENK-A was comparable between cases and controls. There were significant differences in the association of PENK-A with cognitive impairment by sex and age (adjusted P=0.003 and 0.06, respectively). In women but not men, spline plots showed that higher and lower PENK-A were associated with decreased odds of cognitive impairment (ORs for 10th and 90th percentiles versus median, 0.65 [95% CI, 0.43-0.96] and 0.64 [95% CI, 0.41-0.99]), with no difference by age. In men ≥65 years of age but not younger men, higher PENK-A was associated with decreased odds for cognitive impairment (OR for fourth versus first quartile 0.47 [95% CI, 0.22-0.99]); this pattern was not confirmed with spline plotting. Conclusions High and low levels of circulating opioid PENK-A were associated with decreased odds of future cognitive impairment in specific subgroups. Additional research is warranted to understand the biology underlying this association and the observed differences by sex.
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Affiliation(s)
- Samuel A P Short
- Larner College of Medicine University of Vermont Burlington VT USA
| | - Katherine Wilkinson
- Department of Pathology and Laboratory Medicine, Larner College of Medicine University of Vermont Burlington VT USA
| | | | - Miguel Arce Renteria
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Department of Neurology Columbia University College of Physicians and Surgeons New York NY USA
| | - Katharine L Cheung
- Department of Pathology and Laboratory Medicine, Larner College of Medicine University of Vermont Burlington VT USA
- Department of Medicine, Larner College of Medicine University of Vermont Burlington VT USA
| | - Charles D Nicoli
- Department of Medicine Walter Reed National Military Medical Center Bethesda MD USA
| | - Virginia J Howard
- Department of Epidemiology, School of Public Health University of Alabama at Birmingham Birmingham AL USA
| | - Mary Cushman
- Department of Pathology and Laboratory Medicine, Larner College of Medicine University of Vermont Burlington VT USA
- Department of Medicine, Larner College of Medicine University of Vermont Burlington VT USA
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Ilori TO, Brooks MS, Desai PN, Cheung KL, Judd SE, Crews DC, Cushman M, Winkler CA, Shlipak MG, Kopp JB, Naik RP, Estrella MM, Gutiérrez OM, Kramer H. Dietary Patterns, Apolipoprotein L1 Risk Genotypes, and CKD Outcomes Among Black Adults in the Reasons for Geographic and Racial Differences in Stroke (REGARDS) Cohort Study. Kidney Med 2023; 5:100621. [PMID: 37229446 PMCID: PMC10202773 DOI: 10.1016/j.xkme.2023.100621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023] Open
Abstract
Rationale & Objective Dietary factors may impact inflammation and interferon production, which could influence phenotypic expression of Apolipoprotein1 (APOL1) genotypes. We investigated whether associations of dietary patterns with kidney outcomes differed by APOL1 genotypes. Study Design Prospective cohort. Settings & Participants 5,640 Black participants in the Reasons for Geographic and Racial Differences in Stroke (REGARDS). Exposures Five dietary patterns derived from food frequency questionnaires: Convenience foods, Southern, Sweets and Fats, Plant-based, and Alcohol/Salads. Outcomes Incident chronic kidney disease (CKD), CKD progression, and kidney failure. Incident CKD was defined as a change in estimated glomerular filtration rate (eGFR) to <60 mL/min/1.73 m2 accompanied by a ≥25% decline from baseline eGFR or development of kidney failure among those with baseline eGFR ≥60 mL/1.73 m2 body surface area. CKD progression was defined as a composite of 40% reduction in eGFR from baseline or development of kidney failure in the subset of participants who had serum creatinine levels at baseline and completed a second in-home visit/follow-up visit. Analytical Approach We examined associations of dietary pattern quartiles with incident CKD (n=4,188), CKD progression (n=5,640), and kidney failure (n=5,640). We tested for statistical interaction between dietary patterns and APOL1 genotypes for CKD outcomes and explored stratified analyses by APOL1 genotypes. Results Among 5,640 Black REGARDS participants, mean age was 64 years (standard deviation = 9), 35% were male, and 682 (12.1%) had high-risk APOL1 genotypes. Highest versus lowest quartiles (Q4 vs Q1) of Southern dietary pattern were associated with higher adjusted odds of CKD progression (OR, 1.28; 95% CI, 1.01-1.63) but not incident CKD (OR, 0.92; 95% CI, 0.74-1.14) or kidney failure (HR, 1.48; 95% CI, 0.90-2.44). No other dietary patterns showed significant associations with CKD. There were no statistically significant interactions between APOL1 genotypes and dietary patterns. Stratified analysis showed no consistent associations across genotypes, although Q3 and Q4 versus Q1 of Plant-based and Southern patterns were associated with lower odds of CKD progression among APOL1 high- but not low-risk genotypes. Limitations Included overlapping dietary patterns based on a single time point and multiple testing. Conclusions In Black REGARDS participants, Southern dietary pattern was associated with increased risk of CKD progression. Analyses stratified by APOL1 genotypes suggest associations may differ by genetic background, but these findings require confirmation in other cohorts.
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Affiliation(s)
- Titilayo O. Ilori
- Division of Nephrology, Department of Medicine, Boston Medical Center, Boston University School of Medicine, Boston, MA
| | - Marquita S. Brooks
- Department of Biostatistics, School of Public Health, University of Alabama, Birmingham, AB
| | - Parin N. Desai
- Division of Nephrology and Hypertension, Loyola University Chicago, Maywood, IL
| | - Katharine L. Cheung
- Division of Nephrology, Department of Medicine, Larner College of Medicine at The University of Vermont, Burlington, VT
| | - Suzanne E. Judd
- Department of Biostatistics, School of Public Health, University of Alabama, Birmingham, AB
| | - Deidra C. Crews
- Division of Nephrology, Department of Medicine, John Hopkins School of Medicine, Baltimore, MD
| | - Mary Cushman
- Division of Hematology, Department of Medicine, Larner College of Medicine at The University of Vermont, Burlington, VT
| | - Cheryl A. Winkler
- Basic Research Laboratory, Center for Cancer Research, National Cancer Institute, National Institutes of Health and Leidos Biomedical Research, Frederick National Laboratory, Frederick, MD
| | - Michael G. Shlipak
- Department of Medicine, University of California, San Francisco, San Francisco, CA
| | - Jeffrey B. Kopp
- Kidney Disease Section, National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), NIH, Bethesda, MD
| | - Rakhi P. Naik
- Division of Hematology, Department of Medicine, John Hopkins School of Medicine, Baltimore, MD
| | - Michelle M. Estrella
- Division of Nephrology, Department of Medicine, San Francisco VA Medical Center, San Francisco, CA
| | - Orlando M. Gutiérrez
- Division of Nephrology, Department of Medicine, University of Alabama, Birmingham, AB
| | - Holly Kramer
- Department of Public Health Sciences Division of Nephrology and Hypertension, Loyola University, Chicago, IL
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Cheung KL. Building an Evidence Base for Active Medical Management without Dialysis: Tale of Two Programs. Kidney360 2023; 4:114-116. [PMID: 36638232 PMCID: PMC10101594 DOI: 10.34067/kid.0000000000000031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 12/05/2022] [Indexed: 01/15/2023]
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Cheung KL, Smoger S, Tamura MK, Stapleton RD, Rabinowitz T, LaMantia MA, Gramling R. Content of Tele-Palliative Care Consultations with Patients Receiving Dialysis. J Palliat Med 2022; 25:1208-1214. [PMID: 35254866 PMCID: PMC9347393 DOI: 10.1089/jpm.2021.0539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Background: Little is known about the content of communication in palliative care telehealth conversations in the dialysis population. Understanding the content and process of these conversations may lead to insights about how palliative care improves quality of life. Methods: We conducted a qualitative analysis of video recordings obtained during a pilot palliative teleconsultation program. We recruited patients receiving dialysis from five facilities affiliated with an academic medical center. Palliative care clinicians conducted teleconsultation using a wall-mounted screen with a camera mounted on a pole and positioned mid-screen in the line of sight to facilitate direct eye contact. Patients used an iPad that was attached to an IV pole positioned next to the dialysis chair. Conversations were coded using a preexisting framework of themes and content from the Serious Illness Conversation Guide (SICG) and revised Edmonton Symptom Assessment System-Renal. Results: We recruited 39 patients to undergo a telepalliative care consultation while receiving dialysis, 34 of whom completed the teleconsultation. Specialty palliative care clinicians (3 physicians and 1 nurse practitioner) conducted 35 visits with 34 patients. Median (interquartile range) duration of conversation was 42 (28-57) minutes. Most frequently discussed content included sources of strength (91%), critical abilities (88%), illness understanding (85%), fears and worries (85%), what family knows (85%), fatigue (77%), and pain (65%). Process features such as summarizing statements (85%) and making a recommendation (82%) were common, whereas connectional silence (56%), and emotion expression (21%) occurred less often. Conclusions: Unscripted palliative care conversations in outpatient dialysis units through telemedicine exhibited many domains recommended by the SICG, with less frequent discussion of symptoms. Emotion expression was uncommon for these conversations that occurred in an open setting.
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Affiliation(s)
- Katharine L. Cheung
- Divisions of Nephrology, Department of Medicine, Larner College of Medicine, The University of Vermont, Burlington, Vermont, USA.,Address correspondence to: Katharine L. Cheung, MD, PhD, Division of Nephrology, Department of Medicine, Larner College of Medicine at The University of Vermont, 1 South Prospect Street, 2309 UHC Med-Nephrology, Burlington, VT 05401, USA
| | - Samantha Smoger
- Department of Biology, The University of Vermont, Burlington, Vermont, USA
| | - Manjula Kurella Tamura
- Division of Nephrology, Geriatric Research, Education, and Clinical Center, Veterans Affairs Palo Alto Health Care System, Palo Alto, California, USA
| | - Renee D. Stapleton
- Divisions of Pulmonary and Critical Care, and Department of Medicine, Larner College of Medicine, The University of Vermont, Burlington, Vermont, USA
| | - Terry Rabinowitz
- Department of Psychiatry, Larner College of Medicine, The University of Vermont, Burlington, Vermont, USA
| | - Michael A. LaMantia
- Divisions of Geriatrics, Department of Medicine, Larner College of Medicine, The University of Vermont, Burlington, Vermont, USA
| | - Robert Gramling
- Division of Palliative Medicine, Department of Family Medicine, Larner College of Medicine, The University of Vermont, Burlington, Vermont, USA
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Stapleton RD, Ford DW, Sterba KR, Nadig NR, Ades S, Back AL, Carson SS, Cheung KL, Ely J, Kross EK, Macauley RC, Maguire JM, Marcy TW, McEntee JJ, Menon PR, Overstreet A, Ritchie CS, Wendlandt B, Ardren SS, Balassone M, Burns S, Choudhury S, Diehl S, McCown E, Nielsen EL, Paul SR, Rice C, Taylor KK, Engelberg RA. Evolution of Investigating Informed Assent Discussions about CPR in Seriously Ill Patients. J Pain Symptom Manage 2022; 63:e621-e632. [PMID: 35595375 PMCID: PMC9179950 DOI: 10.1016/j.jpainsymman.2022.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 03/06/2022] [Accepted: 03/09/2022] [Indexed: 01/27/2023]
Abstract
CONTEXT Outcomes after cardiopulmonary resuscitation (CPR) remain poor. We have spent 10 years investigating an "informed assent" (IA) approach to discussing CPR with chronically ill patients/families. IA is a discussion framework whereby patients extremely unlikely to benefit from CPR are informed that unless they disagree, CPR will not be performed because it will not help achieve their goals, thus removing the burden of decision-making from the patient/family, while they retain an opportunity to disagree. OBJECTIVES Determine the acceptability and efficacy of IA discussions about CPR with older chronically ill patients/families. METHODS This multi-site research occurred in three stages. Stage I determined acceptability of the intervention through focus groups of patients with advanced COPD or malignancy, family members, and physicians. Stage II was an ambulatory pilot randomized controlled trial (RCT) of the IA discussion. Stage III is an ongoing phase 2 RCT of IA versus attention control in in patients with advanced chronic illness. RESULTS Our qualitative work found the IA approach was acceptable to most patients, families, and physicians. The pilot RCT demonstrated feasibility and showed an increase in participants in the intervention group changing from "full code" to "do not resuscitate" within two weeks after the intervention. However, Stages I and II found that IA is best suited to inpatients. Our phase 2 RCT in older hospitalized seriously ill patients is ongoing; results are pending. CONCLUSIONS IA is a feasible and reasonable approach to CPR discussions in selected patient populations.
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Affiliation(s)
- Renee D Stapleton
- Pulmonary and Critical Medicine, HSRF 222 (R.D.S), University of Vermont Larner College of Medicine, Burlington, Vermont, USA.
| | - Dee W Ford
- Division Director and Professor, Pulmonary, Critical Care, and Sleep Medicine, CSB 816, MSC 630 (D.W.F.), Medical University of South Carolina, Charleston, South Carolina, USA
| | - Katherine R Sterba
- Public Health Sciences (K.R.S.), Medical University of South Carolina, Charleston, South Carolina, USA
| | - Nandita R Nadig
- Pulmonary and Critical Care Medicine Northwestern University Feinberg School of Medicine (N.R.N.), Chicago, Illinois, USA
| | - Steven Ades
- Hematology and Oncology (S.A.), University of Vermont Larner College of Medicine, Burlington, Vermont, USA
| | - Anthony L Back
- Department of Medicine (A.L.B.), University of Washington, Seattle, Washington, USA
| | - Shannon S Carson
- Pulmonary and Critical Care Medicine (S.S.C.), University of North Carolina, Chapel Hill, North Carolina, USA
| | - Katharine L Cheung
- Nephrology (K.L.C.), University of Vermont Larner College of Medicine, Burlington, Vermont, USA
| | - Janet Ely
- University of Vermont Cancer Center (J.E.), Burlington, Vermont, USA
| | - Erin K Kross
- Division of Pulmonary, Critical Care & Sleep Medicine, Co-Director of Cambia Palliative Care Center of Excellence at UW Medicine (E.K.K.), University of Washington, Seattle, Washington, USA
| | | | - Jennifer M Maguire
- Pulmonary and Critical Care Medicine (J.M.M.), University of North Carolina, Chapel Hill, North Carolina, USA
| | - Theodore W Marcy
- Pulmonary and Critical Care Medicine (T.W.M.), University of Vermont Larner College of Medicine, Burlington, Vermont, USA
| | - Jennifer J McEntee
- Internal Medicine and Pediatrics, Palliative Care and Hospice Medicine (J.J.M.), University of North Carolina, Chapel Hill, North Carolina, USA
| | - Prema R Menon
- Vertex Pharmaceuticals (P.R.M.), Boston, Massachusetts, USA
| | - Amanda Overstreet
- Geriatrics and Palliative Care (A.O.), Medical University of South Carolina, Charleston, SC
| | | | - Blair Wendlandt
- Pulmonary and Critical Care Medicine (B.W.), University of North Carolina, Chapel Hill, North Carolina, USA
| | - Sara S Ardren
- University of Vermont Larner College of Medicine (S.S.A.), Burlington, Vermont, USA
| | - Michael Balassone
- Division of Pulmonary and Critical Care Medicine (M.B.), Medical University of South Carolina, Charleston, South Carolina, USA
| | - Stephanie Burns
- University of Vermont Larner College of Medicine (S.B.), Burlington, Vermont, USA
| | - Summer Choudhury
- North Carolina Translational and Clinical Sciences Institute (S.C.), University of North Carolina, Chapel Hill, North Carolina, USA
| | - Sandra Diehl
- University of Vermont Medical Center (S.D.), Burlington, Vermont, USA
| | - Ellen McCown
- Spiritual Care (E.M.), University of Washington Medical Center, Seattle, Washington, USA
| | - Elizabeth L Nielsen
- Cambia Palliative Care Center of Excellence at UW Medicine (E.L.N), University of Washington, Seattle, Washington, USA
| | - Sudiptho R Paul
- Pulmonary and Critical Care Medicine (S.R.P., C.R.), University of North Carolina, Chapel Hill, North Carolina, USA
| | - Colleen Rice
- Pulmonary and Critical Care Medicine (S.R.P., C.R.), University of North Carolina, Chapel Hill, North Carolina, USA
| | - Katherine K Taylor
- Pulmonary, Critical Care, and Sleep Medicine (K.K.T), Medical University of South Carolina, Charleston, South Carolina, USA
| | - Ruth A Engelberg
- Pulmonary, Critical Care & Sleep Medicine, Cambia Palliative Care Center of Excellence at UW Medicine (R.A.E.), University of Washington, Seattle, Seattle, Washington, USA
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Long DL, Guo B, McClure LA, Jaeger BC, Tison S, Howard G, Judd SE, Howard VJ, Plante TB, Zakai NA, Koh I, Cheung KL, Cushman M. Biomarkers as MEDiators of racial disparities in risk factors (BioMedioR): Rationale, study design, and statistical considerations. Ann Epidemiol 2022; 66:13-19. [PMID: 34742867 PMCID: PMC8920757 DOI: 10.1016/j.annepidem.2021.10.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 10/06/2021] [Accepted: 10/26/2021] [Indexed: 02/03/2023]
Abstract
PURPOSE Relative to White adults, Black adults have a substantially higher prevalence of hypertension and diabetes, both key risk factors for stroke, cardiovascular disease, cognitive impairment, and dementia. Blood biomarkers have shown promise in identifying contributors to racial disparities in many chronic diseases. METHODS We outline the study design and related statistical considerations for a nested cohort study, the Biomarker Mediators of Racial Disparities in Risk Factors (BioMedioR) study, within the 30,239-person biracial REasons for Geographic And Racial Differences in Stroke (REGARDS) study (2003-present). Selected biomarkers will be assessed for contributions to racial disparities in risk factor development over median 9.4 years of follow-up, with initial focus on hypertension, and diabetes. Here we outline study design decisions and statistical considerations for the sampling of 4,400 BioMedioR participants. RESULTS The population for biomarker assessment was selected using a random sample study design balanced across race and sex to provide the optimal opportunity to describe association of biomarkers with the development of hypertension and diabetes. Descriptive characteristics of the BioMedioR sample and analytic plans are provided for this nested cohort study. CONCLUSIONS This nested biomarker study will examine pathways with the target to help explain racial differences in hypertension and diabetes incidence.
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Affiliation(s)
- D. Leann Long
- Department of Biostatistics, School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama
| | - Boyi Guo
- Department of Biostatistics, School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama
| | - Leslie A. McClure
- Department of Epidemiology and Biostatistics, Drexel University, Philadelphia, Pennsylvania
| | - Byron C. Jaeger
- Department of Biostatistics, School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama
| | - Stephanie Tison
- Department of Biostatistics, School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama
| | - George Howard
- Department of Biostatistics, School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama
| | - Suzanne E. Judd
- Department of Biostatistics, School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama
| | - Virginia J. Howard
- Department of Biostatistics, School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama
| | - Timothy B. Plante
- Department of Medicine, Larner College of Medicine at the University of Vermont
| | - Neil A. Zakai
- Department of Medicine, Larner College of Medicine at the University of Vermont,Department of Pathology & Laboratory Medicine, Larner College of Medicine at the University of Vermont
| | - Insu Koh
- Department of Pathology & Laboratory Medicine, Larner College of Medicine at the University of Vermont
| | - Katharine L. Cheung
- Department of Medicine, Larner College of Medicine at the University of Vermont
| | - Mary Cushman
- Department of Medicine, Larner College of Medicine at the University of Vermont,Department of Pathology & Laboratory Medicine, Larner College of Medicine at the University of Vermont
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9
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Morgan JL, Shrestha A, Reed MWR, Herbert E, Bradburn M, Walters SJ, Martin C, Collins K, Ward S, Holmes G, Burton M, Lifford K, Edwards A, Ring A, Robinson T, Chater T, Pemberton K, Brennan A, Cheung KL, Todd A, Audisio R, Wright J, Simcock R, Thomson AM, Gosney M, Hatton M, Green T, Revill D, Gath J, Horgan K, Holcombe C, Winter MC, Naik J, Parmeschwar R, Wyld L. Bridging the age gap in breast cancer: impact of omission of breast cancer surgery in older women with oestrogen receptor-positive early breast cancer on quality-of-life outcomes. Br J Surg 2021; 108:315-325. [PMID: 33760065 PMCID: PMC10364859 DOI: 10.1093/bjs/znaa125] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 11/15/2020] [Indexed: 01/04/2023]
Abstract
BACKGROUND Primary endocrine therapy may be an alternative treatment for less fit women with oestrogen receptor (ER)-positive breast cancer. This study compared quality-of-life (QoL) outcomes in older women treated with surgery or primary endocrine therapy. METHODS This was a multicentre, prospective, observational cohort study of surgery or primary endocrine therapy in women aged over 70 years with operable breast cancer. QoL was assessed using European Organisation for Research and Treatment of cancer QoL questionnaires QLQ-C30, -BR23, and -ELD14, and the EuroQol Five Dimensions 5L score at baseline, 6 weeks, and 6, 12, 18, and 24 months. Propensity score matching was used to adjust for baseline variation in health, fitness, and tumour stage. RESULTS The study recruited 3416 women (median age 77 (range 69-102) years) from 56 breast units. Of these, 2979 (87.2 per cent) had ER-positive breast cancer; 2354 women had surgery and 500 received primary endocrine therapy (125 were excluded from analysis due to inadequate data or non-standard therapy). Median follow-up was 52 months. The primary endocrine therapy group was older and less fit. Baseline QoL differed between the groups; the mean(s.d.) QLQ-C30 global health status score was 66.2(21.1) in patients who received primary endocrine therapy versus 77.1(17.8) among those who had surgery plus endocrine therapy. In the unmatched analysis, changes in QoL between 6 weeks and baseline were noted in several domains, but by 24 months most scores had returned to baseline levels. In the matched analysis, major surgery (mastectomy or axillary clearance) had a more pronounced adverse impact than primary endocrine therapy in several domains. CONCLUSION Adverse effects on QoL are seen in the first few months after surgery, but by 24 months these have largely resolved. Women considering surgery should be informed of these effects.
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Affiliation(s)
- J L Morgan
- Department of Oncology and Metabolism, University of Sheffield Medical School, Sheffield, UK
| | - A Shrestha
- Department of Oncology and Metabolism, University of Sheffield Medical School, Sheffield, UK
| | - M W R Reed
- Brighton and Sussex Medical School, Brighton, UK
| | - E Herbert
- Clinical Trials Research Unit, School for Health and Related Research, University of Sheffield, Sheffield, UK
| | - M Bradburn
- Clinical Trials Research Unit, School for Health and Related Research, University of Sheffield, Sheffield, UK
| | - S J Walters
- Clinical Trials Research Unit, School for Health and Related Research, University of Sheffield, Sheffield, UK
| | - C Martin
- Department of Oncology and Metabolism, University of Sheffield Medical School, Sheffield, UK
| | - K Collins
- Faculty of Health and Wellbeing, Department of Allied Health Professions, Sheffield Hallam University, Sheffield, UK
| | - S Ward
- Department of Health Economics and Decision Science, School for Health and Related Research, ScHARR, University of Sheffield, Sheffield, UK
| | - G Holmes
- Department of Health Economics and Decision Science, School for Health and Related Research, ScHARR, University of Sheffield, Sheffield, UK
| | - M Burton
- Clinical Trials Research Unit, School for Health and Related Research, University of Sheffield, Sheffield, UK
| | - K Lifford
- Division of Population Medicine, Cardiff University, Cardiff, UK
| | - A Edwards
- Division of Population Medicine, Cardiff University, Cardiff, UK
| | - A Ring
- Department of Medical Oncology, Royal Marsden Hospital, London, UK
| | - T Robinson
- Department of Cardiovascular Sciences and National Institute for Health Research Biomedical Research Centre, University of Leicester, Cardiovascular Research Centre, Glenfield General Hospital, Leicester, UK
| | - T Chater
- Clinical Trials Research Unit, School for Health and Related Research, University of Sheffield, Sheffield, UK
| | - K Pemberton
- Clinical Trials Research Unit, School for Health and Related Research, University of Sheffield, Sheffield, UK
| | - A Brennan
- Department of Health Economics and Decision Science, School for Health and Related Research, ScHARR, University of Sheffield, Sheffield, UK
| | - K L Cheung
- School of Medicine, University of Nottingham, Royal Derby Hospital, Derby, UK
| | - A Todd
- Department of Oncology and Metabolism, University of Sheffield Medical School, Sheffield, UK
| | - R Audisio
- Department of Surgery, University of Gothenberg, Sahlgrenska Universitetssjukhuset, Gothenberg, Sweden
| | - J Wright
- Brighton and Sussex Medical School, Brighton, UK
| | - R Simcock
- Brighton and Sussex Medical School, Brighton, UK
| | - A M Thomson
- Department of Surgery, Baylor College of Medicine, Houston, Texas, USA
| | - M Gosney
- School of Psychology and Clinical Language Sciences, University of Reading, Reading, UK
| | - M Hatton
- Sheffield Teaching Hospitals NHS Foundation Trust, Weston Park Hospital, Sheffield, UK
| | - T Green
- North Trent Cancer Research Network Consumer Research Panel, Sheffield, UK
| | - D Revill
- North Trent Cancer Research Network Consumer Research Panel, Sheffield, UK
| | - J Gath
- North Trent Cancer Research Network Consumer Research Panel, Sheffield, UK
| | - K Horgan
- Department of Breast Surgery, Bexley Cancer Centre, St James's University Hospital, Leeds, UK
| | - C Holcombe
- Department of Breast Surgery, Liverpool University Hospitals Foundation Trust, Liverpool, UK
| | - M C Winter
- Sheffield Teaching Hospitals NHS Foundation Trust, Weston Park Hospital, Sheffield, UK
| | - J Naik
- Department of General Surgery, Pinderfields Hospital, Mid Yorkshire NHS Foundation Trust, Wakefield, UK
| | - R Parmeschwar
- Department of Breast Surgery, University Hospitals of Morecambe Bay, Lancaster, UK
| | - L Wyld
- Department of Oncology and Metabolism, University of Sheffield Medical School, Sheffield, UK
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10
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Carver JA, Cheung KL. Feasibility and Acceptability of a Yogic Breathing/Mindfulness Meditation e-Intervention on Symptoms and COVID-19-Associated Anxiety in Patients Receiving Dialysis. J Palliat Med 2021; 24:1124-1125. [PMID: 34152865 PMCID: PMC10039269 DOI: 10.1089/jpm.2021.0161] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Affiliation(s)
- Jordan A Carver
- Department of Nephrology, The Robert Larner, MD College of Medicine at the University of Vermont, Burlington, Vermont, USA
| | - Katharine L Cheung
- Department of Nephrology, The Robert Larner, MD College of Medicine at the University of Vermont, Burlington, Vermont, USA
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11
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Parks RM, Green AR, Cheung KL. O14 Optimising the management of primary breast cancer in older women. Br J Surg 2021. [DOI: 10.1093/bjs/znab282.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Introduction
The risk of breast cancer increases with age and our global population is ageing. By 2040 the number of breast cancer cases diagnosed per year worldwide will double and over 40% of these will be in patients aged 70 or over. Despite this, there are few treatment guidelines specific to breast cancer in older women and none which consider the unique biological differences of this cohort.
Method
Surgical and core needle biopsy (CNB) specimens were obtained from an existing series of 1,785 women over the age of 70 with primary breast cancer, treated in a single institution with long-term (37+ years) follow-up. Of this cohort, 813 had primary surgical treatment. As part of previous work, it was possible to construct good quality tissue microarrays (TMAs) in 575 surgical specimens and 693 CNB specimens. Immunohistochemical staining for 32 biomarkers has been performed in all of the available TMAs. Association between histological score for each biomarker and tumour size, grade, recurrence rate, breast cancer specific and overall survival is currently being investigated in the whole cohort.
Results
Results to date have revealed a unique biological cluster in older women with primary breast cancer that is not seen in a comparative younger cohort. In the future, bioinformatics analysis will determine which biomarkers and in what combination, can predict chance of recurrence/overall survival in this cohort.
Conclusions
This information will be used to create a prognostic tool specific to assist older women with decision making regarding primary treatment of breast cancer.
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Affiliation(s)
- R M Parks
- Nottingham Breast Cancer Research Centre, School of Medicine, University of Nottingham, Nottingham, UK
| | - A R Green
- Nottingham Breast Cancer Research Centre, School of Medicine, University of Nottingham, Nottingham, UK
| | - K L Cheung
- Nottingham Breast Cancer Research Centre, School of Medicine, University of Nottingham, Nottingham, UK
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12
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Parks RM, Alfarsi LH, Green AR, Cheung KL. Biology of primary breast cancer in older women beyond routine biomarkers. Breast Cancer 2021; 28:991-1001. [PMID: 34165702 PMCID: PMC8354915 DOI: 10.1007/s12282-021-01266-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 06/13/2021] [Indexed: 11/15/2022]
Abstract
Purpose There are numerous biomarkers which may have potential predictive and prognostic significance in breast cancer. This is extremely important in older adults, who may opt for less aggressive therapy. This work outlines the literature on biological assessment outside of standard biomarkers (defined as ER, PgR, HER2, Ki67) in women ≥ 65 years with primary operable invasive breast cancer, to determine which additional biomarkers are relevant to outcome in older women. Methods Medline and Embase databases were searched. Studies were eligible if included ≥ 50 patients aged ≥ 65 years; stratified results by age; measured a biomarker outside of standard assay and reported patient data. Results A total of 12 studies were appraised involving 5000 patients, measuring 28 biomarkers. The studies were extremely varied in methodology and outcome but three themes emerged: 1. Differences in biomarker expression between younger and older women, indicating that breast cancer in older women is generally less aggressive compared to younger women; 2. Relationship of biomarker expression with survival, suggesting biomarkers which may exclusively predict response to primary treatment in older women; 3. Association of biomarker with chemotherapy, suggesting that older patients should not be declined chemotherapy based on age alone. Conclusion There is evidence to support further investigation of B-cell lymphoma (BCL2), liver kinase (LK)B1, epidermal growth factor receptor (EGFR), cytoplasmic cyclin-E, mucin (MUC)1 and cytokeratins (CKs) as potential predictive or prognostic markers in older women with breast cancer undergoing surgery. Studies exploring these biomarkers in larger cohorts and in women undergoing non-operative therapies are required. Supplementary Information The online version contains supplementary material available at 10.1007/s12282-021-01266-5.
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Affiliation(s)
- R M Parks
- Nottingham Breast Cancer Research Centre, School of Medicine, Royal Derby Hospital Centre, University of Nottingham, Uttoxeter Road, Derby, DE22 3DT, UK
| | - L H Alfarsi
- Nottingham Breast Cancer Research Centre, School of Medicine, Royal Derby Hospital Centre, University of Nottingham, Uttoxeter Road, Derby, DE22 3DT, UK
| | - A R Green
- Nottingham Breast Cancer Research Centre, School of Medicine, Royal Derby Hospital Centre, University of Nottingham, Uttoxeter Road, Derby, DE22 3DT, UK
| | - K L Cheung
- Nottingham Breast Cancer Research Centre, School of Medicine, Royal Derby Hospital Centre, University of Nottingham, Uttoxeter Road, Derby, DE22 3DT, UK.
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13
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Harrison CA, Parks RM, Cheung KL. The impact of breast cancer surgery on functional status in older women - A systematic review of the literature. Eur J Surg Oncol 2021; 47:1891-1899. [PMID: 33875285 DOI: 10.1016/j.ejso.2021.04.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 03/17/2021] [Accepted: 04/08/2021] [Indexed: 11/18/2022] Open
Abstract
Primary endocrine therapy as treatment of breast cancer is only recommended in older women with limited life expectancy. However, many older women opt for endocrine therapy due to concerns regarding frailty and potential decline in function after surgery. A decline in functional status after surgery is documented in some cancer types, such as colorectal, however, the full impact of breast cancer surgery is less understood. A systematic review was performed to examine the evidence for impact of breast cancer surgery on functional status in older women. PubMed and Embase databases were searched. Studies were eligible if performed within the last 10 years; included patients over the age of 65 years undergoing breast cancer surgery; included stratification of results by age; measured functional status pre-operatively and at least six months following surgery. A total of 11 studies including 12 030 women were appraised. Two studies represented level-II and nine level-IV evidence. Overall, physical activity level was negatively impacted by breast cancer surgery and this was compounded by the extent of surgery. Evidence for impact of breast cancer surgery on quality of life, fatigue and cognition, was conflicting. The possibility of decline in functional status after breast cancer surgery should be discussed in all older women considering surgery. A structured exercise program may improve the negative effects of surgery on physical activity. Further work is required in the areas of quality of life, fatigability and cognition.
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Affiliation(s)
- C A Harrison
- Nottingham Breast Cancer Research Centre, University of Nottingham, UK
| | - R M Parks
- Nottingham Breast Cancer Research Centre, University of Nottingham, UK
| | - K L Cheung
- Nottingham Breast Cancer Research Centre, University of Nottingham, UK.
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14
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Wyld L, Reed MWR, Collins K, Burton M, Lifford K, Edwards A, Ward S, Holmes G, Morgan J, Bradburn M, Walters SJ, Ring A, Robinson TG, Martin C, Chater T, Pemberton K, Shrestha A, Nettleship A, Murray C, Brown M, Richards P, Cheung KL, Todd A, Harder H, Brain K, Audisio RA, Wright J, Simcock R, Armitage F, Bursnall M, Green T, Revell D, Gath J, Horgan K, Holcombe C, Winter M, Naik J, Parmeshwar R, Gosney M, Hatton M, Thompson AM. Bridging the age gap in breast cancer: cluster randomized trial of two decision support interventions for older women with operable breast cancer on quality of life, survival, decision quality, and treatment choices. Br J Surg 2021; 108:499-510. [PMID: 33760077 PMCID: PMC10364907 DOI: 10.1093/bjs/znab005] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 10/04/2020] [Accepted: 12/28/2020] [Indexed: 11/14/2022]
Abstract
BACKGROUND Rates of surgery and adjuvant therapy for breast cancer vary widely between breast units. This may contribute to differences in survival. This cluster RCT evaluated the impact of decision support interventions (DESIs) for older women with breast cancer, to ascertain whether DESIs influenced quality of life, survival, decision quality, and treatment choice. METHODS A multicentre cluster RCT compared the use of two DESIs against usual care in treatment decision-making in older women (aged at least ≥70 years) with breast cancer. Each DESI comprised an online algorithm, booklet, and brief decision aid to inform choices between surgery plus adjuvant endocrine therapy versus primary endocrine therapy, and adjuvant chemotherapy versus no chemotherapy. The primary outcome was quality of life. Secondary outcomes included decision quality measures, survival, and treatment choice. RESULTS A total of 46 breast units were randomized (21 intervention, 25 usual care), recruiting 1339 women (670 intervention, 669 usual care). There was no significant difference in global quality of life at 6 months after the baseline assessment on intention-to-treat analysis (difference -0.20, 95 per cent confidence interval (C.I.) -2.69 to 2.29; P = 0.900). In women offered a choice of primary endocrine therapy versus surgery plus endocrine therapy, knowledge about treatments was greater in the intervention arm (94 versus 74 per cent; P = 0.003). Treatment choice was altered, with a primary endocrine therapy rate among women with oestrogen receptor-positive disease of 21.0 per cent in the intervention versus 15.4 per cent in usual-care sites (difference 5.5 (95 per cent C.I. 1.1 to 10.0) per cent; P = 0.029). The chemotherapy rate was 10.3 per cent at intervention versus 14.8 per cent at usual-care sites (difference -4.5 (C.I. -8.0 to 0) per cent; P = 0.013). Survival was similar in both arms. CONCLUSION The use of DESIs in older women increases knowledge of breast cancer treatment options, facilitates shared decision-making, and alters treatment selection. Trial registration numbers: EudraCT 2015-004220-61 (https://eudract.ema.europa.eu/), ISRCTN46099296 (http://www.controlled-trials.com).
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Affiliation(s)
- L Wyld
- Department of Oncology and Metabolism, University of Sheffield Medical School, Sheffield, UK
| | - M W R Reed
- Brighton and Sussex Medical School, Falmer, Brighton, UK
| | - K Collins
- College of Health, Wellbeing and Life Sciences, Department of Allied Health Professions, Sheffield Hallam University, Sheffield, UK
| | - M Burton
- College of Health, Wellbeing and Life Sciences, Department of Allied Health Professions, Sheffield Hallam University, Sheffield, UK
| | - K Lifford
- Division of Population Medicine, Cardiff University, Cardiff, UK
| | - A Edwards
- Division of Population Medicine, Cardiff University, Cardiff, UK
| | - S Ward
- Department of Health Economics and Decision Science, School for Health and Related Research, ScHARR, University of Sheffield, Sheffield, UK
| | - G Holmes
- Department of Health Economics and Decision Science, School for Health and Related Research, ScHARR, University of Sheffield, Sheffield, UK
| | - J Morgan
- Department of Oncology and Metabolism, University of Sheffield Medical School, Sheffield, UK
| | - M Bradburn
- Clinical Trials Research Unit, School for Health and Related Research, University of Sheffield, Sheffield, UK
| | - S J Walters
- Clinical Trials Research Unit, School for Health and Related Research, University of Sheffield, Sheffield, UK
| | - A Ring
- Royal Marsden Hospital NHS Foundation Trust, London, UK
| | - T G Robinson
- Department of Cardiovascular Sciences and NIHR Biomedical Research Centre, University of Leicester, Cardiovascular Research Centre, Glenfield General Hospital, Leicester, UK
| | - C Martin
- Department of Oncology and Metabolism, University of Sheffield Medical School, Sheffield, UK
| | - T Chater
- Clinical Trials Research Unit, School for Health and Related Research, University of Sheffield, Sheffield, UK
| | - K Pemberton
- Clinical Trials Research Unit, School for Health and Related Research, University of Sheffield, Sheffield, UK
| | - A Shrestha
- Department of Oncology and Metabolism, University of Sheffield Medical School, Sheffield, UK
| | - A Nettleship
- EpiGenesys, University of Sheffield, Sheffield, UK
| | - C Murray
- EpiGenesys, University of Sheffield, Sheffield, UK
| | - M Brown
- EpiGenesys, University of Sheffield, Sheffield, UK
| | - P Richards
- Department of Health Economics and Decision Science, School for Health and Related Research, ScHARR, University of Sheffield, Sheffield, UK
| | - K L Cheung
- University of Nottingham, Royal Derby Hospital, Derby, UK
| | - A Todd
- Department of Oncology and Metabolism, University of Sheffield Medical School, Sheffield, UK
| | - H Harder
- Brighton and Sussex Medical School, Falmer, Brighton, UK
| | - K Brain
- Division of Population Medicine, Cardiff University, Cardiff, UK
| | - R A Audisio
- University of Gothenberg, Sahlgrenska Universitetssjukhuset, Gothenberg, Sweden
| | - J Wright
- Brighton and Sussex Medical School, Falmer, Brighton, UK
| | - R Simcock
- Brighton and Sussex Medical School, Falmer, Brighton, UK
| | | | - M Bursnall
- Clinical Trials Research Unit, School for Health and Related Research, University of Sheffield, Sheffield, UK
| | - T Green
- Yorkshire and Humber Consumer Research Panel (yhcrp.org.uk), Leeds, UK
| | - D Revell
- Yorkshire and Humber Consumer Research Panel (yhcrp.org.uk), Leeds, UK
| | - J Gath
- Yorkshire and Humber Consumer Research Panel (yhcrp.org.uk), Leeds, UK
| | - K Horgan
- Department of Breast Surgery, Bexley Cancer Centre, St James's University Hospital, Leeds, UK
| | - C Holcombe
- Liverpool University Hospitals Foundation Trust, Liverpool, UK
| | - M Winter
- Weston Park Hospital, Sheffield, UK
| | - J Naik
- Pinderfields Hospital, Mid Yorkshire NHS Foundation Trust, Wakefield, UK
| | - R Parmeshwar
- University Hospitals of Morecambe Bay, Lancaster, UK
| | - M Gosney
- Royal Berkshire NHS Foundation Trust, Reading, UK
| | - M Hatton
- Weston Park Hospital, Sheffield, UK
| | - A M Thompson
- Department of Surgery, Baylor College of Medicine, Houston, Texas, USA
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15
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Cheung KL, Tamura MK, Stapleton RD, Rabinowitz T, LaMantia MA, Gramling R. Feasibility and Acceptability of Telemedicine-Facilitated Palliative Care Consultations in Rural Dialysis Units. J Palliat Med 2021; 24:1307-1313. [PMID: 33470899 DOI: 10.1089/jpm.2020.0647] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Background: Patients receiving dialysis have unmet palliative care needs. Limited access to palliative care is a key barrier to its integration into routine dialysis care. Objective: To determine the feasibility and acceptability of telepalliative care in rural dialysis units. Methods: This was a single-arm pilot clinical trial. The target population was patients with kidney failure receiving outpatient dialysis in a rural U.S. state. Feasibility was measured by one-month completion rate. Acceptability was measured using an adapted telemedicine questionnaire. Results: We recruited 39 patients with mean age 71.2 years to undergo a telepalliative care consultation while receiving dialysis. Four specialty palliative care clinicians (three physicians and one nurse practitioner) conducted the visits. The recruitment rate was 40% (39/96), scheduling rate was 100% (39/39), and one-month completion rate was 77% (30/39). Thirty-six patient participants (14 women and 22 men) completed the baseline survey. Audiovisual aspects of the visit were rated highly. More than 80% reported the visit being at least as good as an in-person visit and 41% felt the teleconsult was better. Eighty-one percent of patients felt the appointment was relevant to them, 58% felt they learned new things about their condition, and 27% reported the appointment changed the way they think about dialysis. Discussion: Telepalliative care is acceptable to patients receiving dialysis and is a feasible approach to integrating palliative care in rural dialysis units. The study was registered with Clinicaltrials.gov (NCT03744117).
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Affiliation(s)
- Katharine L Cheung
- Division of Nephrology, Department of Medicine, Larner College of Medicine at The University of Vermont, Burlington, Vermont, USA
| | - Manjula Kurella Tamura
- Division of Nephrology, Geriatric Research, Education, and Clinical Center, Veterans Affairs Palo Alto Health Care System, Palo Alto, California, USA
| | - Renee D Stapleton
- Division of Pulmonary and Critical Care, Department of Medicine, Larner College of Medicine at The University of Vermont, Burlington, Vermont, USA
| | - Terry Rabinowitz
- Department of Psychiatry, Larner College of Medicine at The University of Vermont, Burlington, Vermont, USA
| | - Michael A LaMantia
- Division of Geriatrics, Department of Medicine, Larner College of Medicine at The University of Vermont, Burlington, Vermont, USA
| | - Robert Gramling
- Division of Palliative Medicine, Department of Family Medicine, Larner College of Medicine at The University of Vermont, Burlington, Vermont, USA
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16
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Cheung KL, Schell JO, Rubin A, Hoops J, Gilmartin B, Cohen RA. Communication Skills Training for Nurses and Social Workers: An Initiative to Promote Interdisciplinary Advance Care Planning and Palliative Care in Patients on Dialysis. Nephrol Nurs J 2021. [DOI: 10.37526/1526-744x.2021.48.6.547] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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17
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Cheung KL, Schell JO, Rubin A, Hoops J, Gilmartin B, Cohen RA. Communication Skills Training for Nurses and Social Workers: An Initiative to Promote Interdisciplinary Advance Care Planning and Palliative Care in Patients on Dialysis. Nephrol Nurs J 2021; 48:547-552. [PMID: 34935332 PMCID: PMC9936385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Palliative care initiatives are needed in nephrology, yet implementation is lacking. We created a 6-hour workshop to teach the skills of active listening, responding to emotion, and exploring goals and values to nurses and social workers working in dialysis units. The workshop consisted of interactive didactics and structured role play with trained simulated patients. We assessed preparedness using a Likert scale and utilized paired t tests to measure the impact using a self-assessment survey following the training. Ten nurses and two social workers from six dialysis units completed the training. Mean scores improved in all domains: demonstrating empathic behaviors, responding to emotion and end-of-life concerns, eliciting family's concerns at end-of-life and patient's goals, and discussing spiritual concerns. Further testing in larger samples may help to confirm these results.
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Affiliation(s)
| | - Jane O. Schell
- University of Pittsburgh School of Medicine, Department of General Medicine, Section of Palliative Care and Medical Ethics and the Division of Renal-Electrolyte, Pittsburgh, PA
| | - Alan Rubin
- Division of General Internal Medicine, The University of Vermont Larner College of Medicine, Burlington, VT
| | - Jacqueline Hoops
- The University of Vermont Medical Center, Burlington, VT, and is currently working as a Dialysis RN at Dialysis Clinic Inc., Troy, NY
| | - Bette Gilmartin
- The University of Vermont Medical Center, Burlington, VT, and is currently a Quality Advisor at Cape Cod Hospital, Hyannis, MA
| | - Robert A. Cohen
- Harvard Medical School, and in the Nephrology Division, Beth Israel Deaconess Medical Center, Boston, MA
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Cheung KL, LaMantia MA. Cognitive Impairment and Mortality in Patients Receiving Hemodialysis: Implications and Future Research Avenues. Am J Kidney Dis 2019; 74:435-437. [PMID: 31351689 DOI: 10.1053/j.ajkd.2019.06.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Accepted: 06/04/2019] [Indexed: 01/27/2023]
Affiliation(s)
- Katharine L Cheung
- Division of Nephrology, Larner College of Medicine, The University of Vermont, Burlington, VT; Center on Aging, The University of Vermont, Burlington, VT.
| | - Michael A LaMantia
- Center on Aging, The University of Vermont, Burlington, VT; Division of General Internal Medicine and Geriatrics, Larner College of Medicine, The University of Vermont, Burlington, VT
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19
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Kalaitzi S, Cheung KL, Hiligsmann M, Babich S, Czabanowska K. Exploring Women Healthcare Leaders' Perceptions on Barriers to Leadership in Greek Context. Front Public Health 2019; 7:68. [PMID: 31024874 PMCID: PMC6465948 DOI: 10.3389/fpubh.2019.00068] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 03/08/2019] [Indexed: 11/13/2022] Open
Abstract
Background: Gender inequalities have been identified as important derailment factors for health workforce and health system sustainability. Literature holds responsible a list of gendered barriers faced by female health workforce. However, there is a gap in the evidence based research on women leaders' own perceptions of barriers to leading positions advancement. This study aims to explore leadership barriers perceived by women healthcare leaders within country's context; research focused on Greece due to country's poor performance on gender equality index and current economic turbulence. Study supplements survey data and provides orientation for further gender sensitive research in health workforce development through country's specificity lens to better inform education and policy makers. Methods: The best-worst object case survey method was used, applying an online questionnaire designed in Qualtrics. The online questionnaire was sent to 30 purposively invited participants. Respondents were asked to tick the most and the least important barriers to women's leadership in provided choice scenarios. Descriptive data analysis was used to understand and interpret the results. Results: Women leaders perceived stereotypes, work/life balance, lack of equal career advancement, lack of confidence, gender gap and gender bias to be the barriers with the greatest relative importance in constraining opportunities for pursuing leading positions in Greek healthcare setting. Twenty more barriers were identified and ranked lower in relative importance. The results are considered exploratory and not to obtain population based outcomes. Conclusion: This exploratory study reports the perceived barriers of women leaders in pursuing leading positions within Greek healthcare context. The findings point mainly to organizational and socio-cultural related barriers potentially aggravated by country's unfortunate current economic turbulence. Further extensive research is required to establish grounded conclusions and better inform education and policy makers in developing gender sensitive strategies to sustainable health workforce development.
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Affiliation(s)
- Stavroula Kalaitzi
- Department of International Health, Faculty of Health, Medicine and Life Sciences, Care and Public Health Research Institute, Maastricht University, Maastricht, Netherlands
| | - K L Cheung
- Department of Health Promotion, Faculty of Health, Medicine and Life Sciences, Care and Public Health Research Institute, Maastricht University, Maastricht, Netherlands.,Department of Clinical Sciences, College of Health and Life Sciences, Brunel University, London, United Kingdom
| | - M Hiligsmann
- Department of Health Services Research, Faculty of Health, Medicine and Life Sciences, Care and Public Health Research Institute, Maastricht University, Maastricht, Netherlands
| | - S Babich
- Department of International Health, Faculty of Health, Medicine and Life Sciences, Care and Public Health Research Institute, Maastricht University, Maastricht, Netherlands.,Richard M. Fairbanks School of Public Health, Indiana University, Indianapolis, IN, United States
| | - K Czabanowska
- Department of International Health, Faculty of Health, Medicine and Life Sciences, Care and Public Health Research Institute, Maastricht University, Maastricht, Netherlands.,Department of Health Policy and Management, Faculty of Health Sciences, Institute of Public Health, Jagellonian University, Kraków, Poland
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Gee J, Coleman RE, Cheung KL, Evans A, Holcombe C, Skene A, Rea D, Ahmed S, Jahan A, Horgan K, Rauchhaus P, Littleford R, Finlay P, Cheung A, Cullberg M, de Bruin E, Foxley A, Koulai L, Pass M, Schiavon G, Rugman P, Deb R, Robertson JFR. Abstract P2-12-01: Dose- and exposure-response relationship and biomarker correlation analysis in breast tumors from patients treated with capivasertib, an AKT inhibitor, in the STAKT randomized, placebo controlled pre-surgical study. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p2-12-01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Capivasertib (AZD5363), an AKT1,2,3 inhibitor, significantly improved progression-free and overall survival when added to paclitaxel in triple negative breast cancer (BC) patients (Schmid et al. ASCO 2018). We have previously reported in STAKT, robust target inhibition at 480mg BD versus placebo, including significant decreases in the primary biomarkers (PBs) - Ki67, pPRAS40 & pGSK3β - in primary BCs (Robertson et al. SABCS 2017). We now report the dose- and exposure-response relationship of capivasertib and the correlation between primary and secondary (pAKT, pS6, nuclear FOXO3a) tumor biomarkers.
Design: STAKT was a two-stage, double blind, randomized, placebo controlled 'window-of-opportunity' trial in newly diagnosed ER+ BC patients. Stage 1 assessed capivasertib at a dose of 480mg BD p.o. versus placebo. Stage 2 assessed capivasertib at two lower doses 360mg and 240mg BD. Tumor biopsies were taken prior to 1st dose and after 4.5 days of dosing. Evaluable patients (who required pre-defined minimum baseline PD values for PBs) included placebo (n=11), capivasertib at 480mg (n=17), 360mg (n=5) and 240mg (n=6). Blood samples for pharmacokinetic (PK) studies were scheduled at pre-dose; 2, 4, optional 6 & 8 hrs post first dose on Day 1; ˜2-4 h post last dose on Day 5 (before biopsy). The % change from baseline for PBs were evaluated against the following exposure variables (placebo=0): i) Dose, ii) Observed Cmax Day 1 (˜2h post-dose), iii) Observed plasma concentration on Day 5, iv) Model-predicted plasma concentration Day 5 at time of biopsy, and v) Model-predicted AUC on Day 5. Spearman correlation coefficient measured the strength and direction of association between biomarkers.
Results:
· Significant mean reductions in % change from baseline were observed for the PBs pGSK3β (-39%; p<0.006), pPRAS40 (-50%; p<0.0001) and Ki67 (-23%; p=0.052) at 480mg versus placebo. At 360mg and 240mg, mean % changes from baseline in pGSK3β were -27% and -9%, respectively; in pPRAS40 -45% and -28%, respectively; and in Ki67 0% and +22%, respectively.
· Dose-response relationships for individual % change from baseline could be described by an Emax model for all PBs. Overall, the correlation to PK exposure (observed or predicted) was similar to the correlation to dose.
· Correlation coefficient analyses between biomarkers at capivasertib 480mg BD identified- i) Positive correlations for pGSK3β with Ki67 (ρ = 0.52, p-value < 0.05) & with pS6 (ρ = 0.54, p-value<0.05); ii) Negative correlations between FOXO3a and Ki67 (ρ = -0.75, p-value<0.001) pGSK3β (ρ = -0.71, p-value<0.001) & also pS6 (ρ = -0.61, p-value<0.001).Correlation coefficients for lower doses are not robust due to small sample size in these groups.
Conclusions
· Capivasertib caused dose- and concentration- dependent effects on biomarkers after only 4.5 days.
· Significant changes in the PBs were demonstrated at 480 mg BD. Biomarker changes was observed at 360mg and 240mg BD, but statistical analysis was limited by the small sample size at lower doses.
· Correlation between a number of tumor biomarkers (relative changes) were identified for capivasertib 480mg BD.
Citation Format: Gee J, Coleman RE, Cheung KL, Evans A, Holcombe C, Skene A, Rea D, Ahmed S, Jahan A, Horgan K, Rauchhaus P, Littleford R, Finlay P, Cheung A, Cullberg M, de Bruin E, Foxley A, Koulai L, Pass M, Schiavon G, Rugman P, Deb R, Robertson JFR. Dose- and exposure-response relationship and biomarker correlation analysis in breast tumors from patients treated with capivasertib, an AKT inhibitor, in the STAKT randomized, placebo controlled pre-surgical study [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P2-12-01.
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Affiliation(s)
- J Gee
- Cardiff University, Cardiff, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; Royal Bournemouth Hospital, Bournemouth, United Kingdom; University Hospital Birmingham NHS Foundation Trust, Birmingham, United Kingdom; Leicester Royal Infirmary, Leicester, Leicestershire, United Kingdom; Kings Mill Hospital, Mansfield, Nottinghamshire, United Kingdom; Leeds Teaching Hospitals NHS Trust, Leeds, Yorkshire, United Kingdom; University of Dundee, Dundee, United Kingdom; AstraZeneca, Pepparedsleden 1, Sweden; AstraZeneca, Melbourn, Hertfordshire, United Kingdom; Royal Derby Hospital, Derby, Derbyshire, United Kingdom; University of Nottingham, Nottingham, Nottinghamshire, United Kingdom
| | - RE Coleman
- Cardiff University, Cardiff, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; Royal Bournemouth Hospital, Bournemouth, United Kingdom; University Hospital Birmingham NHS Foundation Trust, Birmingham, United Kingdom; Leicester Royal Infirmary, Leicester, Leicestershire, United Kingdom; Kings Mill Hospital, Mansfield, Nottinghamshire, United Kingdom; Leeds Teaching Hospitals NHS Trust, Leeds, Yorkshire, United Kingdom; University of Dundee, Dundee, United Kingdom; AstraZeneca, Pepparedsleden 1, Sweden; AstraZeneca, Melbourn, Hertfordshire, United Kingdom; Royal Derby Hospital, Derby, Derbyshire, United Kingdom; University of Nottingham, Nottingham, Nottinghamshire, United Kingdom
| | - KL Cheung
- Cardiff University, Cardiff, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; Royal Bournemouth Hospital, Bournemouth, United Kingdom; University Hospital Birmingham NHS Foundation Trust, Birmingham, United Kingdom; Leicester Royal Infirmary, Leicester, Leicestershire, United Kingdom; Kings Mill Hospital, Mansfield, Nottinghamshire, United Kingdom; Leeds Teaching Hospitals NHS Trust, Leeds, Yorkshire, United Kingdom; University of Dundee, Dundee, United Kingdom; AstraZeneca, Pepparedsleden 1, Sweden; AstraZeneca, Melbourn, Hertfordshire, United Kingdom; Royal Derby Hospital, Derby, Derbyshire, United Kingdom; University of Nottingham, Nottingham, Nottinghamshire, United Kingdom
| | - A Evans
- Cardiff University, Cardiff, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; Royal Bournemouth Hospital, Bournemouth, United Kingdom; University Hospital Birmingham NHS Foundation Trust, Birmingham, United Kingdom; Leicester Royal Infirmary, Leicester, Leicestershire, United Kingdom; Kings Mill Hospital, Mansfield, Nottinghamshire, United Kingdom; Leeds Teaching Hospitals NHS Trust, Leeds, Yorkshire, United Kingdom; University of Dundee, Dundee, United Kingdom; AstraZeneca, Pepparedsleden 1, Sweden; AstraZeneca, Melbourn, Hertfordshire, United Kingdom; Royal Derby Hospital, Derby, Derbyshire, United Kingdom; University of Nottingham, Nottingham, Nottinghamshire, United Kingdom
| | - C Holcombe
- Cardiff University, Cardiff, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; Royal Bournemouth Hospital, Bournemouth, United Kingdom; University Hospital Birmingham NHS Foundation Trust, Birmingham, United Kingdom; Leicester Royal Infirmary, Leicester, Leicestershire, United Kingdom; Kings Mill Hospital, Mansfield, Nottinghamshire, United Kingdom; Leeds Teaching Hospitals NHS Trust, Leeds, Yorkshire, United Kingdom; University of Dundee, Dundee, United Kingdom; AstraZeneca, Pepparedsleden 1, Sweden; AstraZeneca, Melbourn, Hertfordshire, United Kingdom; Royal Derby Hospital, Derby, Derbyshire, United Kingdom; University of Nottingham, Nottingham, Nottinghamshire, United Kingdom
| | - A Skene
- Cardiff University, Cardiff, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; Royal Bournemouth Hospital, Bournemouth, United Kingdom; University Hospital Birmingham NHS Foundation Trust, Birmingham, United Kingdom; Leicester Royal Infirmary, Leicester, Leicestershire, United Kingdom; Kings Mill Hospital, Mansfield, Nottinghamshire, United Kingdom; Leeds Teaching Hospitals NHS Trust, Leeds, Yorkshire, United Kingdom; University of Dundee, Dundee, United Kingdom; AstraZeneca, Pepparedsleden 1, Sweden; AstraZeneca, Melbourn, Hertfordshire, United Kingdom; Royal Derby Hospital, Derby, Derbyshire, United Kingdom; University of Nottingham, Nottingham, Nottinghamshire, United Kingdom
| | - D Rea
- Cardiff University, Cardiff, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; Royal Bournemouth Hospital, Bournemouth, United Kingdom; University Hospital Birmingham NHS Foundation Trust, Birmingham, United Kingdom; Leicester Royal Infirmary, Leicester, Leicestershire, United Kingdom; Kings Mill Hospital, Mansfield, Nottinghamshire, United Kingdom; Leeds Teaching Hospitals NHS Trust, Leeds, Yorkshire, United Kingdom; University of Dundee, Dundee, United Kingdom; AstraZeneca, Pepparedsleden 1, Sweden; AstraZeneca, Melbourn, Hertfordshire, United Kingdom; Royal Derby Hospital, Derby, Derbyshire, United Kingdom; University of Nottingham, Nottingham, Nottinghamshire, United Kingdom
| | - S Ahmed
- Cardiff University, Cardiff, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; Royal Bournemouth Hospital, Bournemouth, United Kingdom; University Hospital Birmingham NHS Foundation Trust, Birmingham, United Kingdom; Leicester Royal Infirmary, Leicester, Leicestershire, United Kingdom; Kings Mill Hospital, Mansfield, Nottinghamshire, United Kingdom; Leeds Teaching Hospitals NHS Trust, Leeds, Yorkshire, United Kingdom; University of Dundee, Dundee, United Kingdom; AstraZeneca, Pepparedsleden 1, Sweden; AstraZeneca, Melbourn, Hertfordshire, United Kingdom; Royal Derby Hospital, Derby, Derbyshire, United Kingdom; University of Nottingham, Nottingham, Nottinghamshire, United Kingdom
| | - A Jahan
- Cardiff University, Cardiff, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; Royal Bournemouth Hospital, Bournemouth, United Kingdom; University Hospital Birmingham NHS Foundation Trust, Birmingham, United Kingdom; Leicester Royal Infirmary, Leicester, Leicestershire, United Kingdom; Kings Mill Hospital, Mansfield, Nottinghamshire, United Kingdom; Leeds Teaching Hospitals NHS Trust, Leeds, Yorkshire, United Kingdom; University of Dundee, Dundee, United Kingdom; AstraZeneca, Pepparedsleden 1, Sweden; AstraZeneca, Melbourn, Hertfordshire, United Kingdom; Royal Derby Hospital, Derby, Derbyshire, United Kingdom; University of Nottingham, Nottingham, Nottinghamshire, United Kingdom
| | - K Horgan
- Cardiff University, Cardiff, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; Royal Bournemouth Hospital, Bournemouth, United Kingdom; University Hospital Birmingham NHS Foundation Trust, Birmingham, United Kingdom; Leicester Royal Infirmary, Leicester, Leicestershire, United Kingdom; Kings Mill Hospital, Mansfield, Nottinghamshire, United Kingdom; Leeds Teaching Hospitals NHS Trust, Leeds, Yorkshire, United Kingdom; University of Dundee, Dundee, United Kingdom; AstraZeneca, Pepparedsleden 1, Sweden; AstraZeneca, Melbourn, Hertfordshire, United Kingdom; Royal Derby Hospital, Derby, Derbyshire, United Kingdom; University of Nottingham, Nottingham, Nottinghamshire, United Kingdom
| | - P Rauchhaus
- Cardiff University, Cardiff, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; Royal Bournemouth Hospital, Bournemouth, United Kingdom; University Hospital Birmingham NHS Foundation Trust, Birmingham, United Kingdom; Leicester Royal Infirmary, Leicester, Leicestershire, United Kingdom; Kings Mill Hospital, Mansfield, Nottinghamshire, United Kingdom; Leeds Teaching Hospitals NHS Trust, Leeds, Yorkshire, United Kingdom; University of Dundee, Dundee, United Kingdom; AstraZeneca, Pepparedsleden 1, Sweden; AstraZeneca, Melbourn, Hertfordshire, United Kingdom; Royal Derby Hospital, Derby, Derbyshire, United Kingdom; University of Nottingham, Nottingham, Nottinghamshire, United Kingdom
| | - R Littleford
- Cardiff University, Cardiff, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; Royal Bournemouth Hospital, Bournemouth, United Kingdom; University Hospital Birmingham NHS Foundation Trust, Birmingham, United Kingdom; Leicester Royal Infirmary, Leicester, Leicestershire, United Kingdom; Kings Mill Hospital, Mansfield, Nottinghamshire, United Kingdom; Leeds Teaching Hospitals NHS Trust, Leeds, Yorkshire, United Kingdom; University of Dundee, Dundee, United Kingdom; AstraZeneca, Pepparedsleden 1, Sweden; AstraZeneca, Melbourn, Hertfordshire, United Kingdom; Royal Derby Hospital, Derby, Derbyshire, United Kingdom; University of Nottingham, Nottingham, Nottinghamshire, United Kingdom
| | - P Finlay
- Cardiff University, Cardiff, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; Royal Bournemouth Hospital, Bournemouth, United Kingdom; University Hospital Birmingham NHS Foundation Trust, Birmingham, United Kingdom; Leicester Royal Infirmary, Leicester, Leicestershire, United Kingdom; Kings Mill Hospital, Mansfield, Nottinghamshire, United Kingdom; Leeds Teaching Hospitals NHS Trust, Leeds, Yorkshire, United Kingdom; University of Dundee, Dundee, United Kingdom; AstraZeneca, Pepparedsleden 1, Sweden; AstraZeneca, Melbourn, Hertfordshire, United Kingdom; Royal Derby Hospital, Derby, Derbyshire, United Kingdom; University of Nottingham, Nottingham, Nottinghamshire, United Kingdom
| | - A Cheung
- Cardiff University, Cardiff, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; Royal Bournemouth Hospital, Bournemouth, United Kingdom; University Hospital Birmingham NHS Foundation Trust, Birmingham, United Kingdom; Leicester Royal Infirmary, Leicester, Leicestershire, United Kingdom; Kings Mill Hospital, Mansfield, Nottinghamshire, United Kingdom; Leeds Teaching Hospitals NHS Trust, Leeds, Yorkshire, United Kingdom; University of Dundee, Dundee, United Kingdom; AstraZeneca, Pepparedsleden 1, Sweden; AstraZeneca, Melbourn, Hertfordshire, United Kingdom; Royal Derby Hospital, Derby, Derbyshire, United Kingdom; University of Nottingham, Nottingham, Nottinghamshire, United Kingdom
| | - M Cullberg
- Cardiff University, Cardiff, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; Royal Bournemouth Hospital, Bournemouth, United Kingdom; University Hospital Birmingham NHS Foundation Trust, Birmingham, United Kingdom; Leicester Royal Infirmary, Leicester, Leicestershire, United Kingdom; Kings Mill Hospital, Mansfield, Nottinghamshire, United Kingdom; Leeds Teaching Hospitals NHS Trust, Leeds, Yorkshire, United Kingdom; University of Dundee, Dundee, United Kingdom; AstraZeneca, Pepparedsleden 1, Sweden; AstraZeneca, Melbourn, Hertfordshire, United Kingdom; Royal Derby Hospital, Derby, Derbyshire, United Kingdom; University of Nottingham, Nottingham, Nottinghamshire, United Kingdom
| | - E de Bruin
- Cardiff University, Cardiff, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; Royal Bournemouth Hospital, Bournemouth, United Kingdom; University Hospital Birmingham NHS Foundation Trust, Birmingham, United Kingdom; Leicester Royal Infirmary, Leicester, Leicestershire, United Kingdom; Kings Mill Hospital, Mansfield, Nottinghamshire, United Kingdom; Leeds Teaching Hospitals NHS Trust, Leeds, Yorkshire, United Kingdom; University of Dundee, Dundee, United Kingdom; AstraZeneca, Pepparedsleden 1, Sweden; AstraZeneca, Melbourn, Hertfordshire, United Kingdom; Royal Derby Hospital, Derby, Derbyshire, United Kingdom; University of Nottingham, Nottingham, Nottinghamshire, United Kingdom
| | - A Foxley
- Cardiff University, Cardiff, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; Royal Bournemouth Hospital, Bournemouth, United Kingdom; University Hospital Birmingham NHS Foundation Trust, Birmingham, United Kingdom; Leicester Royal Infirmary, Leicester, Leicestershire, United Kingdom; Kings Mill Hospital, Mansfield, Nottinghamshire, United Kingdom; Leeds Teaching Hospitals NHS Trust, Leeds, Yorkshire, United Kingdom; University of Dundee, Dundee, United Kingdom; AstraZeneca, Pepparedsleden 1, Sweden; AstraZeneca, Melbourn, Hertfordshire, United Kingdom; Royal Derby Hospital, Derby, Derbyshire, United Kingdom; University of Nottingham, Nottingham, Nottinghamshire, United Kingdom
| | - L Koulai
- Cardiff University, Cardiff, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; Royal Bournemouth Hospital, Bournemouth, United Kingdom; University Hospital Birmingham NHS Foundation Trust, Birmingham, United Kingdom; Leicester Royal Infirmary, Leicester, Leicestershire, United Kingdom; Kings Mill Hospital, Mansfield, Nottinghamshire, United Kingdom; Leeds Teaching Hospitals NHS Trust, Leeds, Yorkshire, United Kingdom; University of Dundee, Dundee, United Kingdom; AstraZeneca, Pepparedsleden 1, Sweden; AstraZeneca, Melbourn, Hertfordshire, United Kingdom; Royal Derby Hospital, Derby, Derbyshire, United Kingdom; University of Nottingham, Nottingham, Nottinghamshire, United Kingdom
| | - M Pass
- Cardiff University, Cardiff, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; Royal Bournemouth Hospital, Bournemouth, United Kingdom; University Hospital Birmingham NHS Foundation Trust, Birmingham, United Kingdom; Leicester Royal Infirmary, Leicester, Leicestershire, United Kingdom; Kings Mill Hospital, Mansfield, Nottinghamshire, United Kingdom; Leeds Teaching Hospitals NHS Trust, Leeds, Yorkshire, United Kingdom; University of Dundee, Dundee, United Kingdom; AstraZeneca, Pepparedsleden 1, Sweden; AstraZeneca, Melbourn, Hertfordshire, United Kingdom; Royal Derby Hospital, Derby, Derbyshire, United Kingdom; University of Nottingham, Nottingham, Nottinghamshire, United Kingdom
| | - G Schiavon
- Cardiff University, Cardiff, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; Royal Bournemouth Hospital, Bournemouth, United Kingdom; University Hospital Birmingham NHS Foundation Trust, Birmingham, United Kingdom; Leicester Royal Infirmary, Leicester, Leicestershire, United Kingdom; Kings Mill Hospital, Mansfield, Nottinghamshire, United Kingdom; Leeds Teaching Hospitals NHS Trust, Leeds, Yorkshire, United Kingdom; University of Dundee, Dundee, United Kingdom; AstraZeneca, Pepparedsleden 1, Sweden; AstraZeneca, Melbourn, Hertfordshire, United Kingdom; Royal Derby Hospital, Derby, Derbyshire, United Kingdom; University of Nottingham, Nottingham, Nottinghamshire, United Kingdom
| | - P Rugman
- Cardiff University, Cardiff, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; Royal Bournemouth Hospital, Bournemouth, United Kingdom; University Hospital Birmingham NHS Foundation Trust, Birmingham, United Kingdom; Leicester Royal Infirmary, Leicester, Leicestershire, United Kingdom; Kings Mill Hospital, Mansfield, Nottinghamshire, United Kingdom; Leeds Teaching Hospitals NHS Trust, Leeds, Yorkshire, United Kingdom; University of Dundee, Dundee, United Kingdom; AstraZeneca, Pepparedsleden 1, Sweden; AstraZeneca, Melbourn, Hertfordshire, United Kingdom; Royal Derby Hospital, Derby, Derbyshire, United Kingdom; University of Nottingham, Nottingham, Nottinghamshire, United Kingdom
| | - R Deb
- Cardiff University, Cardiff, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; Royal Bournemouth Hospital, Bournemouth, United Kingdom; University Hospital Birmingham NHS Foundation Trust, Birmingham, United Kingdom; Leicester Royal Infirmary, Leicester, Leicestershire, United Kingdom; Kings Mill Hospital, Mansfield, Nottinghamshire, United Kingdom; Leeds Teaching Hospitals NHS Trust, Leeds, Yorkshire, United Kingdom; University of Dundee, Dundee, United Kingdom; AstraZeneca, Pepparedsleden 1, Sweden; AstraZeneca, Melbourn, Hertfordshire, United Kingdom; Royal Derby Hospital, Derby, Derbyshire, United Kingdom; University of Nottingham, Nottingham, Nottinghamshire, United Kingdom
| | - JFR Robertson
- Cardiff University, Cardiff, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; Royal Bournemouth Hospital, Bournemouth, United Kingdom; University Hospital Birmingham NHS Foundation Trust, Birmingham, United Kingdom; Leicester Royal Infirmary, Leicester, Leicestershire, United Kingdom; Kings Mill Hospital, Mansfield, Nottinghamshire, United Kingdom; Leeds Teaching Hospitals NHS Trust, Leeds, Yorkshire, United Kingdom; University of Dundee, Dundee, United Kingdom; AstraZeneca, Pepparedsleden 1, Sweden; AstraZeneca, Melbourn, Hertfordshire, United Kingdom; Royal Derby Hospital, Derby, Derbyshire, United Kingdom; University of Nottingham, Nottingham, Nottinghamshire, United Kingdom
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Yeo W, Lei YY, Cheng AC, Kwok CC, Cheung KL, Lee R, Lee IC, He YQ, Ho S. Abstract P1-12-07: Prospective 36-month follow-up to determine changes in body mass index and weight among Chinese breast cancer survivors. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p1-12-07] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background:Anticancer treatment for breast cancer has been associated with weight gain but such observation has mainly been reported in western patients. More recent data in Asian patients have inconsistent findings. Factors including socio-demographic, clinical and lifestyle may be associated with post-diagnosis weight gain. In this prospective cohort study of women with breast cancer, the objectives were to determine the body mass index (BMI) and weight changes over 36 months after initial diagnosis and the factors associated with such changes.
Methods: Chinese women with newly diagnosed early-stage breast cancer were recruited. Individual woman had her weight measured at breast cancer diagnosis (W0), at study entry (W1) and at 36-month follow-up (W2). Body height was measured at W0. We evaluated change in weight and body mass index (BMI) before and after breast cancer diagnosis.Socio-demographic, clinical and lifestyle factors were assessed to identify potential associated factors with weight changes.
Results: A total of 1133 women with breast cancer had detailed weight measurements at the 3 time-points of assessment. The mean age at diagnosis was 52 years. Fifty-four percent were premenopausal at W1. The proportion of patients with stage 0-I, II and III diseases were 35%, 46% and 19%, respectively.
The proportions of patients who were overweight and obese at the three assessment time-points were 21.2% and 28.5% at W0, 19.7% and 26.6% at W1, and 21.7% and 30.9% at W2 assessment, respectively. When compared to W0, the proportions of women who gained weight within 2-5kg at W1 and W2 were 2.4% and 20.6% respectively, that with weight gain of >5kg at W1 and W2 were 0.5% and 10.0% respectively; 6.1% and 19.6% of women had weight loss >2kg at W1 and W2 respectively.
Compared to W0, the median value of weight change was -0.5 kg (range: -11.4, 18.3) at W1 and 0.6 kg (range: -19.6, 20.5) at W2. On multivariate analysis, only BMI at diagnosis were significantly associated with weight change betweenassessments at diagnosis and W2; the median (range) for weight changes for women who were underweight, normal, overweight and obese were respectively 0.9 (-4.8, 7.6), 0.6 (-13.2, 20.5), 0.5 (-11.5, 13.0) and 0.5 (-19.6, 12.6) kg, p <0.001.
Conclusions: In this prospective study of Chinese women with a history of breast cancer who were followed-up over a 36-months' period, the proportions of women with overweight and obese statuses were relatively stable; weight gain was uncommon among Hong Kong women with breast cancer during the same period. These findings are in contrast with studies conducted in the West, where weight gains were more commonly reported.
Funding: World Cancer Research Fund International (Grant Number WCRF 2010/249 and WCRF 2014/1197)
Citation Format: Yeo W, Lei YY, Cheng AC, Kwok CC, Cheung KL, Lee R, Lee IC, He YQ, Ho S. Prospective 36-month follow-up to determine changes in body mass index and weight among Chinese breast cancer survivors [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P1-12-07.
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Affiliation(s)
- W Yeo
- Chinese University of Hong Kong, Hong Kong, China; Princess Margaret Hospital, Hong Kong, China
| | - YY Lei
- Chinese University of Hong Kong, Hong Kong, China; Princess Margaret Hospital, Hong Kong, China
| | - AC Cheng
- Chinese University of Hong Kong, Hong Kong, China; Princess Margaret Hospital, Hong Kong, China
| | - CC Kwok
- Chinese University of Hong Kong, Hong Kong, China; Princess Margaret Hospital, Hong Kong, China
| | - KL Cheung
- Chinese University of Hong Kong, Hong Kong, China; Princess Margaret Hospital, Hong Kong, China
| | - R Lee
- Chinese University of Hong Kong, Hong Kong, China; Princess Margaret Hospital, Hong Kong, China
| | - IC Lee
- Chinese University of Hong Kong, Hong Kong, China; Princess Margaret Hospital, Hong Kong, China
| | - YQ He
- Chinese University of Hong Kong, Hong Kong, China; Princess Margaret Hospital, Hong Kong, China
| | - S Ho
- Chinese University of Hong Kong, Hong Kong, China; Princess Margaret Hospital, Hong Kong, China
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Cheung KL, Zakai NA, Callas PW, Howard G, Mahmoodi BK, Peralta CA, Judd SE, Kurella Tamura M, Cushman M. Mechanisms and mitigating factors for venous thromboembolism in chronic kidney disease: the REGARDS study. J Thromb Haemost 2018; 16:1743-1752. [PMID: 29984467 PMCID: PMC6123283 DOI: 10.1111/jth.14235] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Indexed: 12/26/2022]
Abstract
Essentials Chronic kidney disease (CKD) is associated with procoagulant and inflammatory biomarkers. We studied the association of CKD and venous thromboembolism (VTE) in a case-cohort study. Factor VIII, D-dimer and C-reactive protein appeared to explain the association of CKD and VTE. Statin use was protective against VTE in those with and without CKD. SUMMARY Background Chronic kidney disease (CKD) is associated with venous thromboembolism (VTE) risk via unknown mechanisms. Whether factors associated with reduced VTE risk in the general population might also be associated with reduced VTE risk in CKD patients is unknown. Objectives To determine whether thrombosis biomarkers attenuate VTE risk, and whether factors associated with reduced VTE risk are similarly effective in CKD patients. Methods Baseline biomarkers were measured in a cohort (294 VTE cases; 939 non-cases) from the Reasons for Geographic and Racial Differences in Stroke (REGARDS) study, a nationwide prospective cohort study of 30 239 persons aged ≥45 years with 4.3 years of follow-up. The hazard ratio (HR) of VTE per 10 mL min-1 1.73 m-2 decrease in estimated glomerular filtration rate (eGFR), and the percentage attenuation of this HR by each biomarker, were calculated. Associations of protective factors (physical activity, lower body mass index [BMI], and aspirin, warfarin and statin use) with VTE were estimated in those with and without CKD. Results The HR for VTE with lower eGFR was 1.13 (95% confidence interval [CI] 1.02-1.25), and VTE risk was attenuated by 23% (95% CI 5-100) by D-dimer, by 100% (95% CI 50-100) by factor VIII, and by 15% (95% CI 2-84) by C-reactive protein. Normal BMI was associated with lower VTE risk in those without CKD (HR 0.47, 95% CI 0.32-0.70), but not in those with CKD (HR 1.07, 95% CI 0.51-2.22). Statin use, physical activity and warfarin use were associated with lower VTE risk in both groups. Conclusions Procoagulant and inflammatory biomarkers mediated the association of eGFR with VTE. Higher physical activity, statin use and warfarin use mitigated VTE risk in those with CKD and those without CKD, but normal BMI did not mitigate VTE risk in CKD patients.
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Affiliation(s)
- K L Cheung
- Larner College of Medicine at the University of Vermont, Burlington, VT, USA
| | - N A Zakai
- Larner College of Medicine at the University of Vermont, Burlington, VT, USA
| | - P W Callas
- University of Vermont, Burlington, VT, USA
| | - G Howard
- University of Alabama Birmingham, Birmingham, AL, USA
| | - B K Mahmoodi
- University of Groningen, Groningen, The Netherlands
| | - C A Peralta
- University of California San Francisco, San Francisco, CA, USA
| | - S E Judd
- University of Alabama Birmingham, Birmingham, AL, USA
| | - M Kurella Tamura
- Stanford University, Stanford, CA, USA
- VA Palo Alto Health Care System, Palo Alto, CA, USA
| | - M Cushman
- Larner College of Medicine at the University of Vermont, Burlington, VT, USA
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Trapero-Bertran M, Muñoz C, Coyle K, Coyle D, Lester-George A, Leidl R, Bertalan N, Cheung KL, Pokhrel S, Lopez-Nicolás A. Cost-effectiveness of alternative smoking cessation scenarios in Spain: results from the EQUIPTMOD. Tob Prev Cessat 2018. [DOI: 10.18332/tpc/90419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Trapero-Bertran M, Leidl R, Muñoz C, Kulchaitanaroaj P, Coyle K, Präger M, Józwiak-Hagymásy J, Cheung KL, Hiligsmann M, Pokhrel S, EQUIPT Study Group OBOT. Estimating costs for modelling return on investment from smoking cessation interventions. Tob Prev Cessat 2018. [DOI: 10.18332/tpc/90429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Marks KJ, Hartman TJ, Judd SE, Ilori TO, Cheung KL, Warnock DG, Gutiérrez OM, Goodman M, Cushman M, McClellan WM. Dietary Oxidative Balance Scores and Biomarkers of Inflammation among Individuals with and without Chronic Kidney Disease. Nephron Extra 2018; 8:11-23. [PMID: 30279696 PMCID: PMC6158582 DOI: 10.1159/000490499] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 05/29/2018] [Indexed: 12/29/2022]
Abstract
BACKGROUND Oxidative stress and inflammation are proposed mechanisms of nonspecific kidney injury and progressive kidney failure. Higher dietary oxidative balance scores (OBS) are associated with lower prevalence of chronic kidney disease (CKD). METHODS We investigated the association between OBS and biomarkers of inflammation using data from the Reasons for Geographic and Racial Differences in Stroke (REGARDS) study. Nutrient estimates from the Block Food Frequency Questionnaires were used to define tertiles of 11 pro- and antioxidant factors. Points for each OBS component were summed, with a higher score indicating predominance of antioxidant exposures. Multivariable linear regression models were used to estimate the association between OBS and biomarkers of inflammation (interleukin-6 [IL-6], interleukin-8 [IL-8], interleukin-10 [IL-10], fibrinogen, C-reactive protein [CRP], white blood cell count, and cystatin C). An interaction term was included to determine if associations between OBS and inflammatory markers differed between individuals with and without CKD. RESULTS Of 682 participants, 22.4% had CKD. In adjusted models, OBS was associated with CRP and IL-6. For every 5-unit increase in OBS, the CRP concentration was -15.3% lower (95% CI: -25.6, -3.6). The association of OBS with IL-6 differed by CKD status; for every 5-unit increase in OBS, IL-6 was -10.7% lower (95% CI: -16.3, -4.7) among those without CKD, but there was no association among those with CKD (p = 0.03). CONCLUSION This study suggests that a higher OBS is associated with more favorable levels of IL-6 and CRP, and that the association of OBS and IL-6 may be modified by CKD status.
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Affiliation(s)
- Kristin J. Marks
- Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Terryl J. Hartman
- Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Suzanne E. Judd
- University of Alabama at Birmingham, Birmingham, Alabama, USA
| | | | | | | | | | - Michael Goodman
- Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
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Wong KS, Fu SN, Cheung KL, Dao MC, Sy WM. Effect of a financial incentive on the acceptance of a smoking cessation programme with service charge: a cluster-controlled trial. Hong Kong Med J 2018; 24:128-136. [PMID: 29622760 DOI: 10.12809/hkmj176960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
INTRODUCTION Frontline health care professionals in Hong Kong may encounter high refusal rates for the Hospital Authority's Smoking Counselling and Cessation Programme (SCCP) when smokers know it is subject to a service charge. We compared SCCP booking and attendance rates among smokers with or without a financial incentive. METHODS In this multicentre non-randomised cluster-controlled trial, adult smokers who attended one of six general out-patient clinics between November 2015 and April 2016 were invited to join an SCCP. Attendees in the three intervention-group centres but not the three control-group centres received a supermarket coupon to offset the service charge. RESULTS A total of 173 smokers aged 18 years or older (92 in the intervention group and 81 in the control group) were recruited into the study. In the intervention group, 47 smokers (51%) agreed via a questionnaire that they would join the SCCP, compared with only 23 smokers in the control group (28%). The booking rates were 83% (n=39) in the intervention group and 83% (n=19) in the control group. Among those who had booked a place, 19 (49%) intervention-group participants and 11 (58%) control-group participants attended an SCCP session. Multivariable logistic regression revealed that offering a coupon was associated with agreeing to join an SCCP (odds ratio=4.963, 95% confidence interval=2.173-11.334; P<0.001) and booking an SCCP place (odds ratio=4.244, 95% confidence interval=1.838-9.799; P<0.001). CONCLUSION Provision of a financial incentive was positively associated with agreement to join an SCCP and booking an SCCP place. Budget holders should consider providing the SCCP free of charge to increase smokers' access to the service.
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Affiliation(s)
- K S Wong
- Family Medicine and General Out-patient Clinics, Kowloon Central Cluster, Hospital Authority, Hong Kong
| | - S N Fu
- Family Medicine & Primary Health Care, Kowloon West Cluster, Hospital Authority, Hong Kong
| | - K L Cheung
- Family Medicine & Primary Health Care, Kowloon West Cluster, Hospital Authority, Hong Kong
| | - M C Dao
- Family Medicine & Primary Health Care, Kowloon West Cluster, Hospital Authority, Hong Kong
| | - W M Sy
- Family Medicine & Primary Health Care, Kowloon West Cluster, Hospital Authority, Hong Kong
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Cheung KL, Pinder SE, Paish C, Sadozye AH, Chan SY, Evans AJ, Blamey RW, Robertson JF. The Role of Blood Tumor Marker Measurement (Using a Biochemical Index Score and C-Erbb2) in Directing Chemotherapy in Metastatic Breast Cancer. Int J Biol Markers 2018; 15:203-9. [PMID: 11012094 DOI: 10.1177/172460080001500310] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The role of blood tumor markers in monitoring response in advanced breast cancer is established in endocrine therapy and standard chemotherapy. This study examines marker levels in patients receiving new chemotherapy regimens. Thirty patients were recruited into two multicenter trials in which docetaxel-based regimens were used in 15 patients. The other 15 received doxorubicin-based regimens. Biochemical response calculated from a score using CA15.3, CEA and ESR was compared with UICC response. Marker changes at 2, 4 and 5 months correlated with UICC response at 3, 41/2 and 6 months, respectively (p < 0.03). Eleven patients achieved both clinical/radiological and biochemical response at the end of treatment; markers had not yet returned to below cutoffs in seven, suggesting a possible advantage to continue chemotherapy. No patient showed a biochemical response whilst judged clinically/radiologically progressive. Nineteen patients had progressed either clinically/radiologically or biochemically at six months; of these, eight showed progression assessed earlier by markers so that a median of four cycles of chemotherapy could have been saved. Measurements of serum c-erbB2 showed a correlation with tissue c-erbB2 staining in the primary tumor (p < 0.003). Among the patients with positive tissue staining, sequential changes in serum c-erbB2 completely paralleled initial response.
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Affiliation(s)
- K L Cheung
- Department of Surgery, City Hospital, Nottingham, UK.
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Affiliation(s)
- W H Chow
- Department of Medicine, Grantham Hospital, Hong Kong
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Lei YY, Lee ICK, Cheung KL, Lee R, He Y, Yeo W. Abstract P6-12-04: Quality of life of Chinese breast cancer survivors in association with lifestyle changes before and after cancer diagnosis. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p6-12-04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Epidemiologic studies in the West have found that lifestyle factors, including maintaining normal body weight, being physically active and eating a healthy diet are individually associated with better quality of life (QOL) among breast cancer survivors. Limited data is available on lifestyle modifications in association with quality of life of breast cancer survivors in Asian region. The objectives of this study were to [1] determine the lifestyle changes among Chinese breast cancer survivors at diagnosis and 18-month post diagnosis; and [2] to assess the association of lifestyle changes with QOL.
Methods: In this prospective cohort study, 1300 Chinese breast cancer patients were assessed at breast cancer diagnosis (baseline; reflecting pre-diagnosis) and at 18-month post-diagnosis. During each assessment, individual patient's lifestyle within the previous 12 months were recorded and included exercise, diet, and body mass index (BMI) data; each patient also underwent self-administered QOL assessment. Assessment of lifestyle modifications were based on World Cancer Research Fund/American Institute for Cancer Research (WCRF/AICR) recommendation adherence scores (range: 0-6).QOL was evaluated by European Organization for Research and Treatment of Cancer-Quality of Life Questionnaire C-30 (EORTC-QLQ-C30). Paired t-test was performed to compare the overall recommendation adherence score before and after diagnosis.To investigate the association between recommendation adherence score and HRQoL, generalized linear models were used to compare the least-square means by tertiles of adherence score (T1, T2, and T3) and continuous adherence score. In the multivariate models, adjustment were made for age, stage of cancer, education level, marital status, comorbidities, smoking status, current hormonal therapy and energy intake.
Results: The mean recommendation adherence score significantly increased from baseline of 3.2 (SD=1.1) to 3.9 (SD=1.1, p<0.001) at 18-month follow-up. Overall, increasing adherence to WCRF/AICR guideline was associated with higher scores of global health status (P=0.01), physical functioning (P<0.001) and role functioning (P=0.03), and lower scores of fatigue (P=0.001), nausea and vomiting (P=0.003), pain (P<0.001), dyspnea (P=0.006), loss of appetite (P=0.001) and diarrhea (P<0.001).
Conclusions: Positive lifestyle changes were made among Chinese breast cancer survivors after cancer diagnosis. Increased adherence to WCRF/AICR recommendations after cancer diagnosis improves QOL, suggesting that Chinese breast cancer survivors should follow the WCRF/AICR guideline for cancer prevention.
Acknowledgments: This study is funded by the World Cancer Research Fund International (Grant Number WCRF 2010/249and WCRF 2014/1197) and Madam Diana Hon Fun Kong Donation for Cancer Research.
Citation Format: Lei Y-Y, Lee IC-K, Cheung KL, Lee R, He Y, Yeo W. Quality of life of Chinese breast cancer survivors in association with lifestyle changes before and after cancer diagnosis [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P6-12-04.
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Affiliation(s)
- Y-Y Lei
- Chinese University of Hong Kong
| | | | | | - R Lee
- Chinese University of Hong Kong
| | - Y He
- Chinese University of Hong Kong
| | - W Yeo
- Chinese University of Hong Kong
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Robertson JFR, Coleman RE, Cheung KL, Evans A, Holcombe C, Skene A, Rea D, Ahmed S, Jahan A, Kelly S, Horgan K, Rauchhaus P, Littleford R, Foxley A, Lindemann JPO, Pass M, Rugman P, Deb R, Finlay P, Gee JMW. Abstract P4-04-06: AZD5363, an AKT inhibitor, significantly inhibits key biomarkers of the AKT pathway and Ki67, in a randomized, placebo, controlled study (STAKT) in human breast cancers. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p4-04-06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: AKT is an important intracellular control point through which Type 1 growth factors and IGFR signal. Mutations in PIK3CA, AKT and PTEN are prevalent in estrogen receptor positive (ER+) breast cancer (BC) and have been implicated in resistance to endocrine therapies. AZD5363 is an inhibitor of AKT 1, 2 and 3 currently in Phase 2 trials for BC and other solid cancers.
Design: The study examined whether AZD5363 impacts on key biomarkers within the AKT pathway and their subsequent effects on Ki67, a marker of tumor proliferation. STAKT is a multi-center, two-stage, double blind, randomized, placebo controlled, biomarker 'window-of-opportunity' trial in women with newly diagnosed, previously untreated ER+ BC who were deemed would require chemotherapy as part of their primary treatment regimen. Stage 1 assessed AZD5363 at a dose of 480mg bd p.o. versus matching placebo. Up to 30 patients per arm were permitted, to allow 12 subjects per arm with evaluable paired biopsies - obtained at baseline, and after 4.5 days of AZD5363 / placebo. Primary endpoint markers were pPRAS40, pGSK3β and Ki67 assessed by immunohistochemistry. pPRAS40 and pGSK3β were assessed by H-scores and measured separately for cytoplasmic (cyto), nuclear (nuc) and total (cyto+nuc) staining. Ki67 was assessed as % positive staining of 500 tumor nuclei. Laboratory staff were blinded to treatment arm and whether the biopsies were taken before or after AZD5363/placebo. Changes in marker expression (both absolute and %) between biopsies were calculated, and compared between the two groups. An ANOVA test was applied for normally distributed data and Wilcoxon Mann-Whitney used if not normally distributed.
Results: 28/36 patients were evaluable with patient & tumor characteristics as follows: 17 received AZD5363 and 11 placebo; the median ages were 48 & 49 years respectively. 27 patients were Caucasian and 1 African-American. Tumors were all ER+. For HER2 status 8 were positive & 9 negative in the AZD5363 treated group compared to 2 & 9 respectively in the placebo group.
For pPRAS40 and pGSK3β cyto was the predominant staining while for Ki67 staining was nuclear. Changes in each marker with associated p-values are shown in the table.
MarkerType of change vs baselineDegree of change in AZD5363 arm (n=17)p-value versus placebo arm (n=11)pPRAS40 (H-score)TotalAbsolute-83.8<0.0001Total%-50.2<0.0001CytoAbsolute-90.0<0.0001Cyto%-55.8<0.0001NucAbsolute+6.90.42Nuc%+8.90.94pGSK3β (H-score)TotalAbsolute-55.30.006Total%-39.00.006CytoAbsolute-53.60.006Cyto%-39.20.006NucAbsolute-2.80.065Nuc%-36.50.058Ki67 (% cells+)Absolute-9.60.031%-29.40.052
Conclusions• AZD5363 for 4.5 days caused highly significant falls in pGSK3β and pPRAS40, key markers of AKT pathway activation
• AZD53643 also caused a significant decline in Ki67 even after only 4.5 days of drug. This is one of the shortest 'window'-studies to report such an early effect on proliferation.
• Placebo controlled 'window' studies of this short duration can provide important evidence of the therapeutic potential early in a drug's development.
Citation Format: Robertson JFR, Coleman RE, Cheung KL, Evans A, Holcombe C, Skene A, Rea D, Ahmed S, Jahan A, Kelly S, Horgan K, Rauchhaus P, Littleford R, Foxley A, Lindemann JPO, Pass M, Rugman P, Deb R, Finlay P, Gee JMW. AZD5363, an AKT inhibitor, significantly inhibits key biomarkers of the AKT pathway and Ki67, in a randomized, placebo, controlled study (STAKT) in human breast cancers [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P4-04-06.
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Affiliation(s)
- JFR Robertson
- University of Nottingham, Nottingham; Univeristy of Dundee, Dundee; University of Sheffield, Sheffield; Royal Liverpool University Hospital, Liverpool; King's Mill Hospital, Nottingham; Leeds General Infirmary, Leeds; Weston Park Hospital, Sheffield; Leicester Royal Infirmary, Leicester; Royal Bournemouth & Christchurch NHS Foundation; Poole Hospital NHS Foundation Trust; University of Birmingham; Royal Derby Hospital; Derriford Hospital; AstraZeneca; Cardiff University
| | - RE Coleman
- University of Nottingham, Nottingham; Univeristy of Dundee, Dundee; University of Sheffield, Sheffield; Royal Liverpool University Hospital, Liverpool; King's Mill Hospital, Nottingham; Leeds General Infirmary, Leeds; Weston Park Hospital, Sheffield; Leicester Royal Infirmary, Leicester; Royal Bournemouth & Christchurch NHS Foundation; Poole Hospital NHS Foundation Trust; University of Birmingham; Royal Derby Hospital; Derriford Hospital; AstraZeneca; Cardiff University
| | - KL Cheung
- University of Nottingham, Nottingham; Univeristy of Dundee, Dundee; University of Sheffield, Sheffield; Royal Liverpool University Hospital, Liverpool; King's Mill Hospital, Nottingham; Leeds General Infirmary, Leeds; Weston Park Hospital, Sheffield; Leicester Royal Infirmary, Leicester; Royal Bournemouth & Christchurch NHS Foundation; Poole Hospital NHS Foundation Trust; University of Birmingham; Royal Derby Hospital; Derriford Hospital; AstraZeneca; Cardiff University
| | - A Evans
- University of Nottingham, Nottingham; Univeristy of Dundee, Dundee; University of Sheffield, Sheffield; Royal Liverpool University Hospital, Liverpool; King's Mill Hospital, Nottingham; Leeds General Infirmary, Leeds; Weston Park Hospital, Sheffield; Leicester Royal Infirmary, Leicester; Royal Bournemouth & Christchurch NHS Foundation; Poole Hospital NHS Foundation Trust; University of Birmingham; Royal Derby Hospital; Derriford Hospital; AstraZeneca; Cardiff University
| | - C Holcombe
- University of Nottingham, Nottingham; Univeristy of Dundee, Dundee; University of Sheffield, Sheffield; Royal Liverpool University Hospital, Liverpool; King's Mill Hospital, Nottingham; Leeds General Infirmary, Leeds; Weston Park Hospital, Sheffield; Leicester Royal Infirmary, Leicester; Royal Bournemouth & Christchurch NHS Foundation; Poole Hospital NHS Foundation Trust; University of Birmingham; Royal Derby Hospital; Derriford Hospital; AstraZeneca; Cardiff University
| | - A Skene
- University of Nottingham, Nottingham; Univeristy of Dundee, Dundee; University of Sheffield, Sheffield; Royal Liverpool University Hospital, Liverpool; King's Mill Hospital, Nottingham; Leeds General Infirmary, Leeds; Weston Park Hospital, Sheffield; Leicester Royal Infirmary, Leicester; Royal Bournemouth & Christchurch NHS Foundation; Poole Hospital NHS Foundation Trust; University of Birmingham; Royal Derby Hospital; Derriford Hospital; AstraZeneca; Cardiff University
| | - D Rea
- University of Nottingham, Nottingham; Univeristy of Dundee, Dundee; University of Sheffield, Sheffield; Royal Liverpool University Hospital, Liverpool; King's Mill Hospital, Nottingham; Leeds General Infirmary, Leeds; Weston Park Hospital, Sheffield; Leicester Royal Infirmary, Leicester; Royal Bournemouth & Christchurch NHS Foundation; Poole Hospital NHS Foundation Trust; University of Birmingham; Royal Derby Hospital; Derriford Hospital; AstraZeneca; Cardiff University
| | - S Ahmed
- University of Nottingham, Nottingham; Univeristy of Dundee, Dundee; University of Sheffield, Sheffield; Royal Liverpool University Hospital, Liverpool; King's Mill Hospital, Nottingham; Leeds General Infirmary, Leeds; Weston Park Hospital, Sheffield; Leicester Royal Infirmary, Leicester; Royal Bournemouth & Christchurch NHS Foundation; Poole Hospital NHS Foundation Trust; University of Birmingham; Royal Derby Hospital; Derriford Hospital; AstraZeneca; Cardiff University
| | - A Jahan
- University of Nottingham, Nottingham; Univeristy of Dundee, Dundee; University of Sheffield, Sheffield; Royal Liverpool University Hospital, Liverpool; King's Mill Hospital, Nottingham; Leeds General Infirmary, Leeds; Weston Park Hospital, Sheffield; Leicester Royal Infirmary, Leicester; Royal Bournemouth & Christchurch NHS Foundation; Poole Hospital NHS Foundation Trust; University of Birmingham; Royal Derby Hospital; Derriford Hospital; AstraZeneca; Cardiff University
| | - S Kelly
- University of Nottingham, Nottingham; Univeristy of Dundee, Dundee; University of Sheffield, Sheffield; Royal Liverpool University Hospital, Liverpool; King's Mill Hospital, Nottingham; Leeds General Infirmary, Leeds; Weston Park Hospital, Sheffield; Leicester Royal Infirmary, Leicester; Royal Bournemouth & Christchurch NHS Foundation; Poole Hospital NHS Foundation Trust; University of Birmingham; Royal Derby Hospital; Derriford Hospital; AstraZeneca; Cardiff University
| | - K Horgan
- University of Nottingham, Nottingham; Univeristy of Dundee, Dundee; University of Sheffield, Sheffield; Royal Liverpool University Hospital, Liverpool; King's Mill Hospital, Nottingham; Leeds General Infirmary, Leeds; Weston Park Hospital, Sheffield; Leicester Royal Infirmary, Leicester; Royal Bournemouth & Christchurch NHS Foundation; Poole Hospital NHS Foundation Trust; University of Birmingham; Royal Derby Hospital; Derriford Hospital; AstraZeneca; Cardiff University
| | - P Rauchhaus
- University of Nottingham, Nottingham; Univeristy of Dundee, Dundee; University of Sheffield, Sheffield; Royal Liverpool University Hospital, Liverpool; King's Mill Hospital, Nottingham; Leeds General Infirmary, Leeds; Weston Park Hospital, Sheffield; Leicester Royal Infirmary, Leicester; Royal Bournemouth & Christchurch NHS Foundation; Poole Hospital NHS Foundation Trust; University of Birmingham; Royal Derby Hospital; Derriford Hospital; AstraZeneca; Cardiff University
| | - R Littleford
- University of Nottingham, Nottingham; Univeristy of Dundee, Dundee; University of Sheffield, Sheffield; Royal Liverpool University Hospital, Liverpool; King's Mill Hospital, Nottingham; Leeds General Infirmary, Leeds; Weston Park Hospital, Sheffield; Leicester Royal Infirmary, Leicester; Royal Bournemouth & Christchurch NHS Foundation; Poole Hospital NHS Foundation Trust; University of Birmingham; Royal Derby Hospital; Derriford Hospital; AstraZeneca; Cardiff University
| | - A Foxley
- University of Nottingham, Nottingham; Univeristy of Dundee, Dundee; University of Sheffield, Sheffield; Royal Liverpool University Hospital, Liverpool; King's Mill Hospital, Nottingham; Leeds General Infirmary, Leeds; Weston Park Hospital, Sheffield; Leicester Royal Infirmary, Leicester; Royal Bournemouth & Christchurch NHS Foundation; Poole Hospital NHS Foundation Trust; University of Birmingham; Royal Derby Hospital; Derriford Hospital; AstraZeneca; Cardiff University
| | - JPO Lindemann
- University of Nottingham, Nottingham; Univeristy of Dundee, Dundee; University of Sheffield, Sheffield; Royal Liverpool University Hospital, Liverpool; King's Mill Hospital, Nottingham; Leeds General Infirmary, Leeds; Weston Park Hospital, Sheffield; Leicester Royal Infirmary, Leicester; Royal Bournemouth & Christchurch NHS Foundation; Poole Hospital NHS Foundation Trust; University of Birmingham; Royal Derby Hospital; Derriford Hospital; AstraZeneca; Cardiff University
| | - M Pass
- University of Nottingham, Nottingham; Univeristy of Dundee, Dundee; University of Sheffield, Sheffield; Royal Liverpool University Hospital, Liverpool; King's Mill Hospital, Nottingham; Leeds General Infirmary, Leeds; Weston Park Hospital, Sheffield; Leicester Royal Infirmary, Leicester; Royal Bournemouth & Christchurch NHS Foundation; Poole Hospital NHS Foundation Trust; University of Birmingham; Royal Derby Hospital; Derriford Hospital; AstraZeneca; Cardiff University
| | - P Rugman
- University of Nottingham, Nottingham; Univeristy of Dundee, Dundee; University of Sheffield, Sheffield; Royal Liverpool University Hospital, Liverpool; King's Mill Hospital, Nottingham; Leeds General Infirmary, Leeds; Weston Park Hospital, Sheffield; Leicester Royal Infirmary, Leicester; Royal Bournemouth & Christchurch NHS Foundation; Poole Hospital NHS Foundation Trust; University of Birmingham; Royal Derby Hospital; Derriford Hospital; AstraZeneca; Cardiff University
| | - R Deb
- University of Nottingham, Nottingham; Univeristy of Dundee, Dundee; University of Sheffield, Sheffield; Royal Liverpool University Hospital, Liverpool; King's Mill Hospital, Nottingham; Leeds General Infirmary, Leeds; Weston Park Hospital, Sheffield; Leicester Royal Infirmary, Leicester; Royal Bournemouth & Christchurch NHS Foundation; Poole Hospital NHS Foundation Trust; University of Birmingham; Royal Derby Hospital; Derriford Hospital; AstraZeneca; Cardiff University
| | - P Finlay
- University of Nottingham, Nottingham; Univeristy of Dundee, Dundee; University of Sheffield, Sheffield; Royal Liverpool University Hospital, Liverpool; King's Mill Hospital, Nottingham; Leeds General Infirmary, Leeds; Weston Park Hospital, Sheffield; Leicester Royal Infirmary, Leicester; Royal Bournemouth & Christchurch NHS Foundation; Poole Hospital NHS Foundation Trust; University of Birmingham; Royal Derby Hospital; Derriford Hospital; AstraZeneca; Cardiff University
| | - JMW Gee
- University of Nottingham, Nottingham; Univeristy of Dundee, Dundee; University of Sheffield, Sheffield; Royal Liverpool University Hospital, Liverpool; King's Mill Hospital, Nottingham; Leeds General Infirmary, Leeds; Weston Park Hospital, Sheffield; Leicester Royal Infirmary, Leicester; Royal Bournemouth & Christchurch NHS Foundation; Poole Hospital NHS Foundation Trust; University of Birmingham; Royal Derby Hospital; Derriford Hospital; AstraZeneca; Cardiff University
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Syed BM, Morgan D, Setty T, Green AR, Paish EC, Ellis IO, Cheung KL. Oestrogen receptor negative early operable primary breast cancer in older women-Biological characteristics and long-term clinical outcome. PLoS One 2017; 12:e0188528. [PMID: 29284000 PMCID: PMC5746234 DOI: 10.1371/journal.pone.0188528] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 11/08/2017] [Indexed: 12/03/2022] Open
Abstract
Background Older women are at the greatest risk of breast cancer development and a considerable number present with comorbidities. Although the majority of breast cancers in this age group express oestrogen receptor (ER), which makes endocrine therapy (primary or adjuvant) feasible, given the huge size of the elderly population, there remains a significant number of patients, in absolute term, whose tumours do not express ER and their management is challenging. Methods Of a consecutive series of 1,758 older (≥70 years) women with early operable primary breast cancer managed in a dedicated service from 1973–2010, 252(14.3%) had ER-negative (histochemical (H) score ≤50) tumours. Their clinical outcome was retrospectively reviewed and tumour samples collected from diagnostic core biopsies were analysed for progesterone receptor (PgR), HER2 and Ki67 using immunohistochemistry. Results The commonest primary treatment was surgery (N = 194, 77%) followed by primary endocrine therapy (14.3%), primary radiotherapy (5.6%) and supportive treatment only (3.1%). Among the patients undergoing surgery, most of them had grade 3 (78.1%) and node-negative disease (62.2%). Some of them (21.1%) received postoperative radiotherapy. At a median follow-up of 37.5 months, 117 patients had died, out of which 48.6% were due to breast cancer. For those who underwent surgery, the regional and local recurrence rates were 2% and 1.1% per annum respectively. For those who received primary endocrine therapy, 38% progressed at 6 months, however all patients who had primary radiotherapy achieved clinical benefit at 6 months. Regardless of treatment given, the 5-year breast cancer specific and overall survival rates were 70% and 50% respectively. Biological analysis based on good quality needle core biopsy specimensfrom181 patients showed that 26.8% (N = 49), 16.9% (N = 31) and 70.7% (N = 70)expressed positivity for PgR, HER2 and Ki67 respectively. No correlation between these biomarkers and breast cancer specific survival was demonstrated. Conclusion Oestrogen receptor negative early operable primary breast cancer in older women is associated with poor prognostic features in terms of biology and clinical outcome. Surgery appears to produce the best outcome as a primary treatment, however for those where neither surgery nor chemotherapy is appropriate, primary radiotherapy can be beneficial.
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Affiliation(s)
- Binafsha Manzoor Syed
- School of Medicine, University of Nottingham, Nottingham, United Kingdom
- Medical Research Centre, Liaquat University of Medical & Health Sciences, Jamshoro, Pakistan
| | - Dal Morgan
- Department of Oncology, Nottingham University Hospitals, Nottingham, United Kingdom
| | - Tulassi Setty
- Medical Research Centre, Liaquat University of Medical & Health Sciences, Jamshoro, Pakistan
| | - Andrew R Green
- Medical Research Centre, Liaquat University of Medical & Health Sciences, Jamshoro, Pakistan
| | - Emma C Paish
- Medical Research Centre, Liaquat University of Medical & Health Sciences, Jamshoro, Pakistan
| | - Ian O Ellis
- Medical Research Centre, Liaquat University of Medical & Health Sciences, Jamshoro, Pakistan
| | - K L Cheung
- Medical Research Centre, Liaquat University of Medical & Health Sciences, Jamshoro, Pakistan
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Roberston JFR, Cheung KL, Ahmed S, Coleman RE, Evans A, Holcombe C, Rea D, Rauchhaus P, Skene A, Littleford R, Jahan A, Kelly S, Lindermann JPO, Horgan K, Foxley A, Rugman P, Pass M. Abstract P3-06-03: The short term effects of an AKT inhibitor (AZD5363) on biomarkers of the AKT pathway and anti-tumour activity in a breast cancer paired biopsy study (STAKT trial). Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p3-06-03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
This abstract was withdrawn by the authors.
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Affiliation(s)
- JFR Roberston
- University of Nottingham, Nottingham, United Kingdom; Univeristy of Dundee, Dundee, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; King's Mill Hospital, Nottingham, United Kingdom; Leeds General Infirmary, Leeds, United Kingdom; Weston Park Hospital, Sheffield, United Kingdom; Leicester Royal Infirmary, Leicester, United Kingdom; Royal Bournemouth & Christchurch NHS Foundation, Bournemouth, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Derby Hospital, Derby, United Kingdom; University of Birmingham, Birmingham, United Kingdom; Derriford Hospital, Plymouth, United Kingdom; AstraZeneca, Melbourn, United Kingdom
| | - KL Cheung
- University of Nottingham, Nottingham, United Kingdom; Univeristy of Dundee, Dundee, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; King's Mill Hospital, Nottingham, United Kingdom; Leeds General Infirmary, Leeds, United Kingdom; Weston Park Hospital, Sheffield, United Kingdom; Leicester Royal Infirmary, Leicester, United Kingdom; Royal Bournemouth & Christchurch NHS Foundation, Bournemouth, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Derby Hospital, Derby, United Kingdom; University of Birmingham, Birmingham, United Kingdom; Derriford Hospital, Plymouth, United Kingdom; AstraZeneca, Melbourn, United Kingdom
| | - S Ahmed
- University of Nottingham, Nottingham, United Kingdom; Univeristy of Dundee, Dundee, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; King's Mill Hospital, Nottingham, United Kingdom; Leeds General Infirmary, Leeds, United Kingdom; Weston Park Hospital, Sheffield, United Kingdom; Leicester Royal Infirmary, Leicester, United Kingdom; Royal Bournemouth & Christchurch NHS Foundation, Bournemouth, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Derby Hospital, Derby, United Kingdom; University of Birmingham, Birmingham, United Kingdom; Derriford Hospital, Plymouth, United Kingdom; AstraZeneca, Melbourn, United Kingdom
| | - RE Coleman
- University of Nottingham, Nottingham, United Kingdom; Univeristy of Dundee, Dundee, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; King's Mill Hospital, Nottingham, United Kingdom; Leeds General Infirmary, Leeds, United Kingdom; Weston Park Hospital, Sheffield, United Kingdom; Leicester Royal Infirmary, Leicester, United Kingdom; Royal Bournemouth & Christchurch NHS Foundation, Bournemouth, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Derby Hospital, Derby, United Kingdom; University of Birmingham, Birmingham, United Kingdom; Derriford Hospital, Plymouth, United Kingdom; AstraZeneca, Melbourn, United Kingdom
| | - A Evans
- University of Nottingham, Nottingham, United Kingdom; Univeristy of Dundee, Dundee, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; King's Mill Hospital, Nottingham, United Kingdom; Leeds General Infirmary, Leeds, United Kingdom; Weston Park Hospital, Sheffield, United Kingdom; Leicester Royal Infirmary, Leicester, United Kingdom; Royal Bournemouth & Christchurch NHS Foundation, Bournemouth, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Derby Hospital, Derby, United Kingdom; University of Birmingham, Birmingham, United Kingdom; Derriford Hospital, Plymouth, United Kingdom; AstraZeneca, Melbourn, United Kingdom
| | - C Holcombe
- University of Nottingham, Nottingham, United Kingdom; Univeristy of Dundee, Dundee, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; King's Mill Hospital, Nottingham, United Kingdom; Leeds General Infirmary, Leeds, United Kingdom; Weston Park Hospital, Sheffield, United Kingdom; Leicester Royal Infirmary, Leicester, United Kingdom; Royal Bournemouth & Christchurch NHS Foundation, Bournemouth, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Derby Hospital, Derby, United Kingdom; University of Birmingham, Birmingham, United Kingdom; Derriford Hospital, Plymouth, United Kingdom; AstraZeneca, Melbourn, United Kingdom
| | - D Rea
- University of Nottingham, Nottingham, United Kingdom; Univeristy of Dundee, Dundee, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; King's Mill Hospital, Nottingham, United Kingdom; Leeds General Infirmary, Leeds, United Kingdom; Weston Park Hospital, Sheffield, United Kingdom; Leicester Royal Infirmary, Leicester, United Kingdom; Royal Bournemouth & Christchurch NHS Foundation, Bournemouth, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Derby Hospital, Derby, United Kingdom; University of Birmingham, Birmingham, United Kingdom; Derriford Hospital, Plymouth, United Kingdom; AstraZeneca, Melbourn, United Kingdom
| | - P Rauchhaus
- University of Nottingham, Nottingham, United Kingdom; Univeristy of Dundee, Dundee, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; King's Mill Hospital, Nottingham, United Kingdom; Leeds General Infirmary, Leeds, United Kingdom; Weston Park Hospital, Sheffield, United Kingdom; Leicester Royal Infirmary, Leicester, United Kingdom; Royal Bournemouth & Christchurch NHS Foundation, Bournemouth, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Derby Hospital, Derby, United Kingdom; University of Birmingham, Birmingham, United Kingdom; Derriford Hospital, Plymouth, United Kingdom; AstraZeneca, Melbourn, United Kingdom
| | - A Skene
- University of Nottingham, Nottingham, United Kingdom; Univeristy of Dundee, Dundee, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; King's Mill Hospital, Nottingham, United Kingdom; Leeds General Infirmary, Leeds, United Kingdom; Weston Park Hospital, Sheffield, United Kingdom; Leicester Royal Infirmary, Leicester, United Kingdom; Royal Bournemouth & Christchurch NHS Foundation, Bournemouth, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Derby Hospital, Derby, United Kingdom; University of Birmingham, Birmingham, United Kingdom; Derriford Hospital, Plymouth, United Kingdom; AstraZeneca, Melbourn, United Kingdom
| | - R Littleford
- University of Nottingham, Nottingham, United Kingdom; Univeristy of Dundee, Dundee, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; King's Mill Hospital, Nottingham, United Kingdom; Leeds General Infirmary, Leeds, United Kingdom; Weston Park Hospital, Sheffield, United Kingdom; Leicester Royal Infirmary, Leicester, United Kingdom; Royal Bournemouth & Christchurch NHS Foundation, Bournemouth, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Derby Hospital, Derby, United Kingdom; University of Birmingham, Birmingham, United Kingdom; Derriford Hospital, Plymouth, United Kingdom; AstraZeneca, Melbourn, United Kingdom
| | - A Jahan
- University of Nottingham, Nottingham, United Kingdom; Univeristy of Dundee, Dundee, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; King's Mill Hospital, Nottingham, United Kingdom; Leeds General Infirmary, Leeds, United Kingdom; Weston Park Hospital, Sheffield, United Kingdom; Leicester Royal Infirmary, Leicester, United Kingdom; Royal Bournemouth & Christchurch NHS Foundation, Bournemouth, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Derby Hospital, Derby, United Kingdom; University of Birmingham, Birmingham, United Kingdom; Derriford Hospital, Plymouth, United Kingdom; AstraZeneca, Melbourn, United Kingdom
| | - S Kelly
- University of Nottingham, Nottingham, United Kingdom; Univeristy of Dundee, Dundee, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; King's Mill Hospital, Nottingham, United Kingdom; Leeds General Infirmary, Leeds, United Kingdom; Weston Park Hospital, Sheffield, United Kingdom; Leicester Royal Infirmary, Leicester, United Kingdom; Royal Bournemouth & Christchurch NHS Foundation, Bournemouth, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Derby Hospital, Derby, United Kingdom; University of Birmingham, Birmingham, United Kingdom; Derriford Hospital, Plymouth, United Kingdom; AstraZeneca, Melbourn, United Kingdom
| | - JPO Lindermann
- University of Nottingham, Nottingham, United Kingdom; Univeristy of Dundee, Dundee, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; King's Mill Hospital, Nottingham, United Kingdom; Leeds General Infirmary, Leeds, United Kingdom; Weston Park Hospital, Sheffield, United Kingdom; Leicester Royal Infirmary, Leicester, United Kingdom; Royal Bournemouth & Christchurch NHS Foundation, Bournemouth, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Derby Hospital, Derby, United Kingdom; University of Birmingham, Birmingham, United Kingdom; Derriford Hospital, Plymouth, United Kingdom; AstraZeneca, Melbourn, United Kingdom
| | - K Horgan
- University of Nottingham, Nottingham, United Kingdom; Univeristy of Dundee, Dundee, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; King's Mill Hospital, Nottingham, United Kingdom; Leeds General Infirmary, Leeds, United Kingdom; Weston Park Hospital, Sheffield, United Kingdom; Leicester Royal Infirmary, Leicester, United Kingdom; Royal Bournemouth & Christchurch NHS Foundation, Bournemouth, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Derby Hospital, Derby, United Kingdom; University of Birmingham, Birmingham, United Kingdom; Derriford Hospital, Plymouth, United Kingdom; AstraZeneca, Melbourn, United Kingdom
| | - A Foxley
- University of Nottingham, Nottingham, United Kingdom; Univeristy of Dundee, Dundee, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; King's Mill Hospital, Nottingham, United Kingdom; Leeds General Infirmary, Leeds, United Kingdom; Weston Park Hospital, Sheffield, United Kingdom; Leicester Royal Infirmary, Leicester, United Kingdom; Royal Bournemouth & Christchurch NHS Foundation, Bournemouth, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Derby Hospital, Derby, United Kingdom; University of Birmingham, Birmingham, United Kingdom; Derriford Hospital, Plymouth, United Kingdom; AstraZeneca, Melbourn, United Kingdom
| | - P Rugman
- University of Nottingham, Nottingham, United Kingdom; Univeristy of Dundee, Dundee, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; King's Mill Hospital, Nottingham, United Kingdom; Leeds General Infirmary, Leeds, United Kingdom; Weston Park Hospital, Sheffield, United Kingdom; Leicester Royal Infirmary, Leicester, United Kingdom; Royal Bournemouth & Christchurch NHS Foundation, Bournemouth, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Derby Hospital, Derby, United Kingdom; University of Birmingham, Birmingham, United Kingdom; Derriford Hospital, Plymouth, United Kingdom; AstraZeneca, Melbourn, United Kingdom
| | - M Pass
- University of Nottingham, Nottingham, United Kingdom; Univeristy of Dundee, Dundee, United Kingdom; University of Sheffield, Sheffield, United Kingdom; Royal Liverpool University Hospital, Liverpool, United Kingdom; King's Mill Hospital, Nottingham, United Kingdom; Leeds General Infirmary, Leeds, United Kingdom; Weston Park Hospital, Sheffield, United Kingdom; Leicester Royal Infirmary, Leicester, United Kingdom; Royal Bournemouth & Christchurch NHS Foundation, Bournemouth, United Kingdom; Poole Hospital NHS Foundation Trust, Poole, United Kingdom; Royal Derby Hospital, Derby, United Kingdom; University of Birmingham, Birmingham, United Kingdom; Derriford Hospital, Plymouth, United Kingdom; AstraZeneca, Melbourn, United Kingdom
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Cheung KL, Zakai NA, Folsom AR, Kurella Tamura M, Peralta CA, Judd SE, Callas PW, Cushman M. Measures of Kidney Disease and the Risk of Venous Thromboembolism in the REGARDS (Reasons for Geographic and Racial Differences in Stroke) Study. Am J Kidney Dis 2017; 70:182-190. [PMID: 28126238 DOI: 10.1053/j.ajkd.2016.10.039] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Accepted: 10/30/2016] [Indexed: 11/11/2022]
Abstract
BACKGROUND Kidney disease has been associated with venous thromboembolism (VTE) risk, but results conflict and there is little information regarding blacks. STUDY DESIGN Prospective cohort study. SETTING & PARTICIPANTS 30,239 black and white adults 45 years or older enrolled in the REGARDS (Reasons for Geographic and Racial Differences in Stroke) Study 2003 to 2007. PREDICTORS Estimated glomerular filtration rate (eGFR) using the combined creatinine-cystatin C (eGFRcr-cys) equation and urinary albumin-creatinine ratio (ACR). OUTCOMES The primary outcome was adjudicated VTE, and secondary outcomes were provoked and unprovoked VTE, separately. Mortality was a competing-risk event. RESULTS During 4.6 years of follow-up, 239 incident VTE events occurred over 124,624 person-years. Cause-specific HRs of VTE were calculated using proportional hazards regression adjusted for age, sex, race, region of residence, and body mass index. Adjusted VTE HRs for eGFRcr-cys of 60 to <90, 45 to <60, and <45 versus ≥90mL/min/1.73m2 were 1.28 (95% CI, 0.94-1.76), 1.30 (95% CI, 0.77-2.18), and 2.13 (95% CI, 1.21-3.76). Adjusted VTE HRs for ACR of 10 to <30, 30 to <300, and ≥300 versus <10mg/g were 1.14 (95% CI, 0.84-1.56), 1.15 (95% CI, 0.79-1.69), and 0.64 (95% CI, 0.25-1.62). Associations were similar for provoked and unprovoked VTE. LIMITATIONS Single measurement of eGFR and ACR may have led to misclassification. Smaller numbers of events may have limited power. CONCLUSIONS There was an independent association of low eGFR (<45 vs ≥90mL/min/1.73m2) with VTE risk, but no association of ACR and VTE.
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Affiliation(s)
| | - Neil A Zakai
- Larner College of Medicine, University of Vermont, Burlington, VT
| | | | - Manjula Kurella Tamura
- Geriatrics Research Education and Clinical Center, Stanford University and VA Palo Alto Health Care System, Palo Alto, CA
| | | | | | | | - Mary Cushman
- Larner College of Medicine, University of Vermont, Burlington, VT
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Hope C, Robertshaw A, Cheung KL, Idris I, English E. Relationship between HbA1c and cancer in people with or without diabetes: a systematic review. Diabet Med 2016; 33:1013-25. [PMID: 26577885 DOI: 10.1111/dme.13031] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/11/2015] [Indexed: 12/25/2022]
Abstract
AIM To identify the relationship between HbA1c and cancers in people with or without diabetes. BACKGROUND Cancer is a major public health problem, accounting for 8.2 million deaths worldwide in 2012. HbA1c level has been associated with the risk of developing certain cancers, although the existing evidence is conflicting. METHODS EMBASE, MEDLINE, CINAHL and the Cochrane Library were searched. Eligible articles included randomized controlled trials, cohort studies, case-control studies, systematic reviews and meta-analyses. Participants of either sex, with or without Type 1 or 2 diabetes, were included. The studies were assessed using the Scottish Intercollegiate Guidelines Network (SIGN) criteria by two independent assessors. No meta-analysis was performed because of the heterogeneity of results. RESULTS A total of 19 studies from 1006 met the inclusion criteria, of which 14 were cohort studies and five were nested case-control studies. Eight studies investigated outcomes for all cancer sites. Four of these studies reported that higher HbA1c levels were associated with higher incidence and/or mortality risk for all cancers. One study observed a U-shaped relationship between HbA1c and cancer incidence and mortality. Increasing HbA1c levels were associated with increasing risk of developing colorectal, pancreatic, respiratory and female genital tract cancers. No increased risk was observed for breast cancer, gastrointestinal or urological malignancies. CONCLUSION HbA1c appears to be associated with cancer incidence and/or cancer mortality, but further studies are needed to fully understand the complex relationship between HbA1c and cancer.
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Affiliation(s)
- C Hope
- School of Medicine, University of Nottingham, Royal Derby Hospital, Derby, UK
| | - A Robertshaw
- School of Medicine, University of Nottingham, Royal Derby Hospital, Derby, UK
| | - K L Cheung
- School of Medicine, University of Nottingham, Royal Derby Hospital, Derby, UK
| | - I Idris
- School of Medicine, University of Nottingham, Royal Derby Hospital, Derby, UK
| | - E English
- School of Medicine, University of Nottingham, Royal Derby Hospital, Derby, UK
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Cheung KL, Periyakoil VS. Renal Palliative Care Studies: Coming of Age. J Palliat Med 2016; 19:582-3. [DOI: 10.1089/jpm.2016.0175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Katharine L. Cheung
- Department of Nephrology, University of Vermont College of Medicine, Burlington, Vermont
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Arce CM, Rhee JJ, Cheung KL, Hedlin H, Kapphahn K, Franceschini N, Kalil RS, Martin LW, Qi L, Shara NM, Desai M, Stefanick ML, Winkelmayer WC. Kidney Function and Cardiovascular Events in Postmenopausal Women: The Impact of Race and Ethnicity in the Women's Health Initiative. Am J Kidney Dis 2015; 67:198-208. [PMID: 26337132 DOI: 10.1053/j.ajkd.2015.07.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Accepted: 07/07/2015] [Indexed: 12/20/2022]
Abstract
BACKGROUND Kidney disease disproportionately affects minority populations, including African Americans and Hispanics; therefore, understanding the relationship of kidney function to cardiovascular (CV) outcomes within different racial/ethnic groups is of considerable interest. We investigated the relationship between kidney function and CV events and assessed effect modification by race/ethnicity in the Women's Health Initiative. STUDY DESIGN Prospective cohort study. SETTING & PARTICIPANTS Baseline serum creatinine concentrations (assay traceable to isotope-dilution mass spectrometry standard) of 19,411 postmenopausal women aged 50 to 79 years who self-identified as either non-Hispanic white (n=8,921), African American (n=7,436), or Hispanic (n=3,054) were used to calculate estimated glomerular filtration rates (eGFRs). PREDICTORS Categories of eGFR (exposure); race/ethnicity (effect modifier). OUTCOMES The primary outcome was the composite of 3 physician-adjudicated CV events: myocardial infarction, stroke, or CV-related death. MEASUREMENTS We evaluated the multivariable-adjusted associations between categories of eGFR and CV events using proportional hazards regression and formally tested for effect modification by race/ethnicity. RESULTS During a mean follow-up of 7.6 years, 1,424 CV events (653 myocardial infarctions, 627 strokes, and 297 CV-related deaths) were observed. The association between eGFR and CV events was curvilinear; however, the association of eGFR with CV outcomes differed by race (P=0.006). In stratified analyses, we observed that the U-shaped association was present in non-Hispanic whites, whereas African American participants had a rather curvilinear relationship, with lower eGFR being associated with higher CV risk, and higher eGFR, with reduced CV risk. Analyses among Hispanic women were inconclusive owing to few Hispanic women having very low or high eGFRs and very few events occurring in these categories. LIMITATIONS Lack of urinary albumin measurements; residual confounding by unmeasured or imprecisely measured characteristics. CONCLUSIONS In postmenopausal women, the patterns of association between eGFR and CV risk differed between non-Hispanic whites and African American women.
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Affiliation(s)
- Cristina M Arce
- Stanford University School of Medicine, Palo Alto, CA; Ohio State University, Columbus, OH
| | - Jinnie J Rhee
- Stanford University School of Medicine, Palo Alto, CA
| | - Katharine L Cheung
- Stanford University School of Medicine, Palo Alto, CA; University of Vermont, Burlington, VT
| | - Haley Hedlin
- Stanford University School of Medicine, Palo Alto, CA
| | | | - Nora Franceschini
- University of North Carolina Gillings School of Global Public Health, Chapel Hill, NC
| | - Roberto S Kalil
- University of Iowa Carver College of Medicine, Iowa City, IA
| | | | - Lihong Qi
- University of California, Davis, Davis, CA
| | | | - Manisha Desai
- Stanford University School of Medicine, Palo Alto, CA
| | | | - Wolfgang C Winkelmayer
- Stanford University School of Medicine, Palo Alto, CA; Baylor College of Medicine, Houston, TX.
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Groeneveld DJ, van Bekkum T, Cheung KL, Dirven RJ, Castaman G, Reitsma PH, van Vlijmen B, Eikenboom J. No evidence for a direct effect of von Willebrand factor's ABH blood group antigens on von Willebrand factor clearance. J Thromb Haemost 2015; 13:592-600. [PMID: 25650553 DOI: 10.1111/jth.12867] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Accepted: 01/24/2015] [Indexed: 12/18/2022]
Abstract
BACKGROUND One of the major determinants of von Willebrand factor (VWF) plasma levels is ABO blood group status, and individuals with blood group O have ~ 25% lower plasma levels. The exact mechanism behind this relationship remains unknown, although effects on clearance have been postulated. OBJECTIVES To determine whether clearance of VWF is directly dependent on the presence of ABH antigens on VWF. METHODS Three type 3 von Willebrand disease (VWD) patients were infused with Haemate-P, and the relative loading of VWF with ABH antigens at different time points was measured. VWF-deficient mice were injected with purified plasma-derived human VWF obtained from donors with either blood group A, blood group B, or blood group O. RESULTS In mice, we found no difference in clearance rate between plasma-derived blood group A, blood group B and blood group O VWF. Faster clearance of the blood group O VWF present in Haemate-P infused in type 3 VWD patients would have resulted in a relative increase in the loading of VWF with A and B antigens over time. However, we observed a two-fold decrease in the loading with A and B antigens in two out of three patients, and stable loading in the third patient. CONCLUSION There is no direct effect of ABH antigens on VWF in VWF clearance. We demonstrate that, in a direct comparison within one individual, blood group O VWF is not cleared faster than blood group A or blood group B VWF. Clearance differences between blood group O and non-blood group O individuals may therefore be related to the blood group status of the individual rather than the ABH antigen loading on VWF itself.
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Affiliation(s)
- D J Groeneveld
- Einthoven Laboratory for Experimental Vascular Medicine, Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
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Mousa R, Chen LC, Cheung KL. An Evidence-Based Model Design to Inform the Cost-Effectiveness Evaluation of Primary Endocrine Therapy And Surgery for Older Women with Primary Breast Cancer. Value Health 2014; 17:A638. [PMID: 27202281 DOI: 10.1016/j.jval.2014.08.2295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- R Mousa
- University of Nottingham, Nottingham, UK
| | - L C Chen
- University of Nottingham, Nottingham, UK
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Tong A, Cheung KL, Nair SS, Kurella Tamura M, Craig JC, Winkelmayer WC. Thematic Synthesis of Qualitative Studies on Patient and Caregiver Perspectives on End-of-Life Care in CKD. Am J Kidney Dis 2014; 63:913-27. [DOI: 10.1053/j.ajkd.2013.11.017] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Accepted: 11/14/2013] [Indexed: 11/11/2022]
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Mathew J, Prinsloo P, Agrawal A, Gutteridge E, Marenah C, Robertson JFR, Cheung KL. Pilot randomised study of early intervention based on tumour markers in the follow-up of patients with primary breast cancer. Breast 2014; 23:567-72. [PMID: 24874285 DOI: 10.1016/j.breast.2014.04.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Revised: 04/02/2014] [Accepted: 04/13/2014] [Indexed: 10/25/2022] Open
Abstract
BACKGROUND This pilot study aimed to test the possibility of therapeutic benefit imparted by early intervention based on sequential tumour marker (TM) measurements during follow-up of primary breast cancer (PBC) patients. METHODS Patients with oestrogen receptor positive PBC with no clinical and/or radiological evidence of metastases were recruited and followed-up 3-monthly with clinical assessment and TM (CA15.3 and CEA) measurements. The clinical team was blinded to the TM results. Asymptomatic patients who developed raised TMs (based on pre-defined cut-offs) were randomised to either 'treatment change' (either start or change of adjuvant endocrine agent to another agent) or 'no change' (control). Patients who developed symptomatic metastases came off the study. The primary and secondary endpoints were intervals from randomisation to symptomatic metastases and to last follow-up/death respectively. RESULTS Eighty-five patients (median age = 54 years (30-72)) were recruited with a median follow-up of 81 months (1-124). Sixteen patients were randomised as described. There was no significant difference (treatment change versus no change) with regards to interval from randomisation to symptomatic metastases - 23 (2-62) and 22 (1-63) months respectively (p = 0.9), as well as interval from randomisation to last follow-up/death - 36 (7-63) and 37 (10-63) months respectively (p = 0.9). CONCLUSIONS Despite long follow-up (up to 10+ years), this small study has thus far shown no significant difference in outcome. However, we have confirmed the feasibility of this study design but a larger study will be required to show if there is a benefit to this approach.
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Affiliation(s)
- J Mathew
- School of Medicine, University of Nottingham, UK.
| | - P Prinsloo
- School of Medicine, University of Nottingham, UK; Department of Clinical Pathology, Nottingham University Hospitals, Nottingham, UK
| | - A Agrawal
- School of Medicine, University of Nottingham, UK
| | - E Gutteridge
- School of Medicine, University of Nottingham, UK
| | - C Marenah
- School of Medicine, University of Nottingham, UK; Department of Clinical Pathology, Nottingham University Hospitals, Nottingham, UK
| | | | - K L Cheung
- School of Medicine, University of Nottingham, UK.
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Syed BM, Green AR, Ellis IO, Cheung KL. Human epidermal growth receptor-2 overexpressing early operable primary breast cancers in older (≥70 years) women: biology and clinical outcome in comparison with younger (<70 years) patients. Ann Oncol 2014; 25:837-842. [PMID: 24667716 DOI: 10.1093/annonc/mdu028] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
INTRODUCTION There is dearth of literature reporting the prevalence and biological characteristics as well as the long-term clinical outcome of human epidermal growth factor receptor-2 (HER2) overexpressing tumours in older women. Currently, research involving trastuzumab at large focuses on the younger population. This study aimed to analyse their biological characteristics and to compare them with their younger counterparts from a single centre with a long-term clinical follow-up. METHODS Over 37 years (1973-2010), 1758 older (≥70 years) women with early operable (<5 cm) primary breast cancer were managed in a dedicated clinic and have complete clinical information available. Of these, 813 patients underwent primary surgery and 575 had good quality tumour samples available for tissue microarray analysis using indirect immunohistochemistry. Comparison was made with data from a well-characterised younger (<70 years) series (N = 1711) treated between 1986 and 1998 (before adjuvant trastuzumab became standard) in our institution. Forty five (7.6%) and 140 (8.2%) patients from the older and younger series, respectively, had HER2-positive tumours. RESULTS HER2 overexpression was seen in 45 (7.6%) older women and 140 (8.2%) in younger patients (P = 0.56). HER2 overexpressing tumours in older women when compared with that in their younger counterparts were associated with low Ki67 and high bcl2 expression (P < 0.05). Only 26% of the younger patients and none of the older patients received adjuvant chemotherapy, and no patients at the time received trastuzumab. However, there was no significant difference in the outcome of the two age groups (5-year breast cancer-specific survival rate: <70 years = 65% versus >70 years = 70%, P = 0.51). CONCLUSION HER2 overexpressing tumours in older women showed relatively a less aggressive phenotype and did not show any inferior long-term clinical outcome despite not having received chemotherapy when compared with the younger patients. The precise role of different adjuvant systemic therapies in this population needs to be delineated.
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Affiliation(s)
- B M Syed
- School of Medicine, University of Nottingham, Nottingham, UK
| | - A R Green
- School of Medicine, University of Nottingham, Nottingham, UK
| | - I O Ellis
- School of Medicine, University of Nottingham, Nottingham, UK
| | - K L Cheung
- School of Medicine, University of Nottingham, Nottingham, UK.
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Lohse KR, Hilderman CGE, Cheung KL, Tatla S, Van der Loos HFM. Virtual reality therapy for adults post-stroke: a systematic review and meta-analysis exploring virtual environments and commercial games in therapy. PLoS One 2014; 9:e93318. [PMID: 24681826 PMCID: PMC3969329 DOI: 10.1371/journal.pone.0093318] [Citation(s) in RCA: 220] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2014] [Accepted: 02/28/2014] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND The objective of this analysis was to systematically review the evidence for virtual reality (VR) therapy in an adult post-stroke population in both custom built virtual environments (VE) and commercially available gaming systems (CG). METHODS MEDLINE, CINAHL, EMBASE, ERIC, PSYCInfo, DARE, PEDro, Cochrane Central Register of Controlled Trials, and Cochrane Database of Systematic Reviews were systematically searched from the earliest available date until April 4, 2013. Controlled trials that compared VR to conventional therapy were included. Population criteria included adults (>18) post-stroke, excluding children, cerebral palsy, and other neurological disorders. Included studies were reported in English. Quality of studies was assessed with the Physiotherapy Evidence Database Scale (PEDro). RESULTS Twenty-six studies met the inclusion criteria. For body function outcomes, there was a significant benefit of VR therapy compared to conventional therapy controls, G = 0.48, 95% CI = [0.27, 0.70], and no significant difference between VE and CG interventions (P = 0.38). For activity outcomes, there was a significant benefit of VR therapy, G = 0.58, 95% CI = [0.32, 0.85], and no significant difference between VE and CG interventions (P = 0.66). For participation outcomes, the overall effect size was G = 0.56, 95% CI = [0.02, 1.10]. All participation outcomes came from VE studies. DISCUSSION VR rehabilitation moderately improves outcomes compared to conventional therapy in adults post-stroke. Current CG interventions have been too few and too small to assess potential benefits of CG. Future research in this area should aim to clearly define conventional therapy, report on participation measures, consider motivational components of therapy, and investigate commercially available systems in larger RCTs. TRIAL REGISTRATION Prospero CRD42013004338.
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Affiliation(s)
- Keith R. Lohse
- School of Kinesiology, Auburn University, Auburn, Alabama, United States of America
- School of Kinesiology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Courtney G. E. Hilderman
- Department of Physical Therapy, University of British Columbia, Vancouver, British Columbia, Canada
| | - Katharine L. Cheung
- Department of Physical Therapy, University of British Columbia, Vancouver, British Columbia, Canada
| | - Sandy Tatla
- Department of Occupational Science and Occupational Therapy, University of British Columbia, Vancouver, British Columbia, Canada
| | - H. F. Machiel Van der Loos
- Department of Mechanical Engineering, University of British Columbia, Vancouver, British Columbia, Canada
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Cheung KL, Montez-Rath ME, Chertow GM, Winkelmayer WC, Periyakoil VS, Kurella Tamura M. Prognostic stratification in older adults commencing dialysis. J Gerontol A Biol Sci Med Sci 2014; 69:1033-9. [PMID: 24482541 DOI: 10.1093/gerona/glt289] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Accurate prognostic models could inform treatment decisions for older adults with end-stage renal disease who are considering dialysis and might identify patients more appropriate for conservative care or hospice. METHODS In a cohort of patients aged ≥ 67 years commencing dialysis in the United States between January 1, 2008 and June 30, 2009, we compared the discrimination of three existing instruments (the Liu index; the French Renal Epidemiology and Information Network score; and hospice eligibility criteria) for the prediction of 6-month mortality. We estimated the odds of death associated with each prognostic index using logistic regression with and without adjustment for age. Predictive indices were compared using the concordance ("c")-statistic. RESULTS Of 44,109 eligible patients, 10,289 (23.3%) died within 6 months of dialysis initiation. The c-statistic for the Liu, Renal Epidemiology and Information Network, hospice eligibility criteria, and combined Liu/hospice eligibility criteria scores without and with age were 0.62/0.65, 0.63/0.66, 0.65/0.68, and 0.68/0.70, respectively. Discrimination was poorer at older ages, especially for the Liu and Renal Epidemiology and Information Network scores. Although sensitivity was poor, a Renal Epidemiology and Information Network score ≥ 9 or an hospice eligibility criteria ≥ 3 had relatively high specificity. CONCLUSIONS Existing prognostic indices based on administrative data perform poorly with respect to prediction of 6-month mortality in older patients with end-stage renal disease commencing dialysis.
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Affiliation(s)
- Katharine L Cheung
- Division of Nephrology, University of Vermont College of Medicine, Burlington.
| | - Maria E Montez-Rath
- Division of Nephrology, Stanford University School of Medicine, Palo Alto, California
| | - Glenn M Chertow
- Division of Nephrology, Stanford University School of Medicine, Palo Alto, California
| | | | - Vyjeyanthi S Periyakoil
- Department of Medicine, Veterans Affairs Palo Alto Health Care System, California. Division of General Medical Disciplines, Stanford University School of Medicine, Palo Alto, California
| | - Manjula Kurella Tamura
- Division of Nephrology, Stanford University School of Medicine, Palo Alto, California. Geriatric Research and Education Clinical Center, Veterans Affairs Palo Alto Health Care System, California
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Meehan SK, Zabukovec JR, Dao E, Cheung KL, Linsdell MA, Boyd LA. One hertz repetitive transcranial magnetic stimulation over dorsal premotor cortex enhances offline motor memory consolidation for sequence-specific implicit learning. Eur J Neurosci 2013; 38:3071-9. [PMID: 23834742 DOI: 10.1111/ejn.12291] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2012] [Revised: 05/14/2013] [Accepted: 06/03/2013] [Indexed: 11/30/2022]
Abstract
Consolidation of motor memories associated with skilled practice can occur both online, concurrent with practice, and offline, after practice has ended. The current study investigated the role of dorsal premotor cortex (PMd) in early offline motor memory consolidation of implicit sequence-specific learning. Thirty-three participants were assigned to one of three groups of repetitive transcranial magnetic stimulation (rTMS) over left PMd (5 Hz, 1 Hz or control) immediately following practice of a novel continuous tracking task. There was no additional practice following rTMS. This procedure was repeated for 4 days. The continuous tracking task contained a repeated sequence that could be learned implicitly and random sequences that could not. On a separate fifth day, a retention test was performed to assess implicit sequence-specific motor learning of the task. Tracking error was decreased for the group who received 1 Hz rTMS over the PMd during the early consolidation period immediately following practice compared with control or 5 Hz rTMS. Enhanced sequence-specific learning with 1 Hz rTMS following practice was due to greater offline consolidation, not differences in online learning between the groups within practice days. A follow-up experiment revealed that stimulation of PMd following practice did not differentially change motor cortical excitability, suggesting that changes in offline consolidation can be largely attributed to stimulation-induced changes in PMd. These findings support a differential role for the PMd in support of online and offline sequence-specific learning of a visuomotor task and offer converging evidence for competing memory systems.
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Affiliation(s)
- S K Meehan
- School of Kinesiology, University of Michigan, Ann Arbor, MI, USA
| | - J R Zabukovec
- Department of Physical Therapy, University of British Columbia, Vancouver, BC, Canada
| | - E Dao
- Department of Physical Therapy, University of British Columbia, Vancouver, BC, Canada
| | - K L Cheung
- Department of Physical Therapy, University of British Columbia, Vancouver, BC, Canada
| | - M A Linsdell
- Department of Physical Therapy, University of British Columbia, Vancouver, BC, Canada
| | - L A Boyd
- Department of Physical Therapy, University of British Columbia, Vancouver, BC, Canada.,Brain Research Centre, University of British Columbia, 212-2177 Wesbrook Mall, Vancouver, BC, V6T 2B5, Canada
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Cheung KL, Lafayette RA. Renal physiology of pregnancy. Adv Chronic Kidney Dis 2013; 20:209-14. [PMID: 23928384 DOI: 10.1053/j.ackd.2013.01.012] [Citation(s) in RCA: 299] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2012] [Revised: 01/25/2013] [Accepted: 01/30/2013] [Indexed: 11/11/2022]
Abstract
Pregnancy involves remarkable orchestration of physiologic changes. The kidneys are central players in the evolving hormonal milieu of pregnancy, responding and contributing to the changes in the environment for the pregnant woman and fetus. The functional impact of pregnancy on kidney physiology is widespread, involving practically all aspects of kidney function. The glomerular filtration rate increases 50% with subsequent decrease in serum creatinine, urea, and uric acid values. The threshold for thirst and antidiuretic hormone secretion are depressed, resulting in lower osmolality and serum sodium levels. Blood pressure drops approximately 10 mmHg by the second trimester despite a gain in intravascular volume of 30% to 50%. The drop in systemic vascular resistance is multifactorial, attributed in part to insensitivity to vasoactive hormones, and leads to activation of the renin-aldosterone-angiostensin system. A rise in serum aldosterone results in a net gain of approximately 1000 mg of sodium. A parallel rise in progesterone protects the pregnant woman from hypokalemia. The kidneys increase in length and volume, and physiologic hydronephrosis occurs in up to 80% of women. This review will provide an understanding of these important changes in kidney physiology during pregnancy, which is fundamental in caring for the pregnant patient.
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Syed BM, Green AR, Paish EC, Soria D, Garibaldi J, Morgan L, Morgan DAL, Ellis IO, Cheung KL. Biology of primary breast cancer in older women treated by surgery: with correlation with long-term clinical outcome and comparison with their younger counterparts. Br J Cancer 2013; 108:1042-51. [PMID: 23462719 PMCID: PMC3619059 DOI: 10.1038/bjc.2012.601] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Background: As age advances breast cancer appears to change its biological characteristics, however, very limited data are available to define the precise differences between older and younger patients. Methods: Over 36 years (1973–2009), 1758 older (⩾70 years) women with early operable primary breast cancer were managed in a dedicated clinic. In all, 813 underwent primary surgery and 575 good quality tumour samples were available for biological analysis. The pattern of biomarkers was analysed using indirect immunohistochemistry on tissue microarrays. Comparison was made with a previously characterised series of younger (<70 years) patients. Results: There was high expression of oestrogen receptor (ER), PgR, Bcl2, Muc1, BRCA1 and 2, E-cadherin, luminal cytokeratins, HER3, HER4, MDM2 and 4 and low expression of human epidermal growth factor receptor (HER)-2, Ki67, p53, EGFR and CK17. Oestrogen receptor and axillary stage appeared as independent prognostic factors. Unsupervised partitional clustering showed six biological clusters in older patients, five of which were common in the younger patients, whereas the low ER luminal cluster was distinct in the older series. The luminal phenotype showed better breast cancer-specific survival, whereas basal and HER2-overexpressing tumours were associated with poor outcome. Conclusion: Early operable primary breast cancer in older women appears as a distinct biological entity, with existence of a novel cluster. Overall older women showed less aggressive tumour biology and ER appeared as an independent prognostic factor alongside the time-dependent axillary stage. These biological characteristics may explain the differences in clinical outcome and should be considered in making therapeutic decisions.
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Affiliation(s)
- B M Syed
- Division of Breast Surgery, University of Nottingham, Derby, UK
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Abstract
Exemestane, a steroidal aromatase inhibitor, is licensed for postmenopausal patients with estrogen receptor (ER)-positive breast cancer as second-line therapy in metastatic disease following antiestrogen failure and as part of sequential adjuvant therapy following initial tamoxifen. This study is a systematic literature review, evaluating exemestane in different clinical settings. The Ovid Medline (1948-2012), Embase (1980-2012), and Web of Science (1899-2012) databases were searched. Forty-two relevant articles covering randomized controlled trials were reviewed for efficacy and safety, and three for adherence. With regard to efficacy in metastatic disease, exemestane is superior to megestrol acetate after progression on tamoxifen. There is evidence for noninferiority to fulvestrant (following a prior aromatase inhibitor) and to nonsteroidal aromatase inhibitors in the first-line setting. Combined use with everolimus is shown to be more efficacious than exemestane alone following previous aromatase inhibitor use. In the adjuvant setting, a switch to exemestane after 2-3 years of tamoxifen is superior to 5 years of tamoxifen. Exemestane is noninferior to 5 years of tamoxifen as upfront therapy, and may have a role as an extended adjuvant therapy. Used as neoadjuvant therapy, increased breast conservation is achievable. As chemoprevention, exemestane significantly reduces the incidence of breast cancer in "at-risk" postmenopausal women. Exemestane is associated with myalgias and arthralgias, as well as reduced bone mineral density and increased risk of fracture, which do not appear to persist at follow-up, with subsequent return to pretreatment values. Compared with tamoxifen, there is a reduced incidence of endometrial changes, thromboembolic events, and hot flashes. Limited evidence shows nonadherence in 23%-32% of patients. Evidence is growing in support of exemestane in all clinical settings. It is generally more efficacious and has a better safety profile than tamoxifen. How it compares with the nonsteroidal aromatase inhibitors remains to be established. Further studies are required on adherence to ensure that maximum benefit is obtained.
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Affiliation(s)
- GA Walker
- Clinical Oncology, East Midlands Deanery, University of Nottingham, Nottingham, UK
| | - M Xenophontos
- Breast Surgery, School of Graduate Entry Medicine and Health, University of Nottingham, Nottingham, UK
| | - LC Chen
- Medicine Use, School of Pharmacy, University of Nottingham, Nottingham, UK
| | - KL Cheung
- Breast Surgery, School of Graduate Entry Medicine and Health, University of Nottingham, Nottingham, UK
- Correspondence: Kwok-Leung Cheung Division of Breast Surgery, School of Graduate Entry Medicine and Health, University of Nottingham, Royal Derby Hospital Centre, Uttoxeter Road, Derby DE22 3DT, UK Tel +44 1332 724 881 Fax +44 1332 724 880 Email
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Johnston SJ, Kenny FS, Syed BM, Robertson JFR, Pinder SE, Winterbottom L, Ellis IO, Blamey RW, Cheung KL. A randomised trial of primary tamoxifen versus mastectomy plus adjuvant tamoxifen in fit elderly women with invasive breast carcinoma of high oestrogen receptor content: long-term results at 20 years of follow-up. Ann Oncol 2012; 23:2296-2300. [PMID: 22357257 DOI: 10.1093/annonc/mdr630] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Long-term analysis of a randomised trial in Nottingham comparing tamoxifen versus surgery as initial treatment demonstrated that in oestrogen receptor (ER)-unselected cases, surgery achieved better local control, with no difference in overall survival. It was suggested that for patients with ER-rich tumours, local control and survival may be comparable. We now present long-term follow-up of a randomised trial designed to address this clinical scenario. PATIENTS AND METHODS One hundred and fifty three fit elderly (≥70 years) women with clinically node-negative primary invasive breast carcinoma <5 cm of high ER content [histochemical (H) score ≥100] were randomised 2:1 to primary tamoxifen (Tam) (N = 100) or mastectomy with adjuvant tamoxifen (Mx + Tam) (N = 53). RESULTS With median follow-up of 78 months, there was no statistically significant difference in 10-year rates of regional recurrence (9.0% versus 7.5%), metastasis (8.0% versus 13.2%), breast cancer-specific survival (89.0% versus 86.8%) or overall survival (64.0% versus 66.0%) between Tam and Mx + Tam; however, local control was inferior with Tam (local failure rates 43.0% versus 1.9%; P < 0.001). CONCLUSION Irrespective of the degree of ER positivity, surgery achieved better local control. However, there was excellent and similar survival in both groups. Tam could be considered in those who are 'frail', refuse or prefer not to initially undergo surgery.
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Affiliation(s)
| | | | | | | | - S E Pinder
- Pathology, University of Nottingham, Nottingham
| | - L Winterbottom
- Nottingham Breast Institute, Nottingham University Hospitals, Nottingham, UK
| | - I O Ellis
- Pathology, University of Nottingham, Nottingham
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Chen QL, Cheung KL, Kong SK, Zhou JQ, Kwan YW, Wong CK, Ho HP. An integrated lab-on-a-disc for automated cell-based allergen screening bioassays. Talanta 2012; 97:48-54. [PMID: 22841046 DOI: 10.1016/j.talanta.2012.03.061] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2011] [Revised: 03/23/2012] [Accepted: 03/26/2012] [Indexed: 10/28/2022]
Abstract
We have utilized various valving scheme to leverage purely rotation-regulated flow control to enable comprehensive cell-based bioassays (CBBs) on centrifuge-based lab-on-a-disc (LOAD). A LOAD has been developed to examine allergic degranulation from live basophils for allergens screening for the first time, which can also be adjusted to suit a wide range of CBBs. In this system, controlled allergic reaction together with mediator separation from basophils using siphon valving and centrifugal sedimentation are realized inside microstructured network. The entire degranulation analysis process including on-demand release of samples, reaction and degranulation, allergic mediator separation and detection is executed in an automatic sequence within a single run. To validate our cell-based approach, detection of degranulation mediated by known secretagagues, ionomycin or chemotatic peptide formyl-methionine-leucine-pheylalanine (fMLP), is first demonstrated. Further experiments using real allergens house dust mite protein (Der p1) and its corresponding human serum IgE also show positive results. The overall efficiency of the assay is 80.6%, which is comparable to other conventional methods. With 4 identical units on a disc running in a parallel format, the device offers the possibility of single-step, multiplexed allergens screening. The device is capable of reporting a result within 30 min. It has many desirable merits including fast and multiplexed analysis, low cost, single-step operation, minimal sample volume, less discomfort and most importantly increased safety as patients are no longer susceptible to possible anaphylactic shock reactions induced by the common skin-prick-test. The flexibility of the flow control within the device makes it suitable to a wide range of CBBs.
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Affiliation(s)
- Q L Chen
- Department of Electronic Engineering, Center for Advanced Research in Photonics, The Chinese University of Hong Kong, Satin N.T., Hong Kong
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Agrawal A, Robertson JFR, Cheung KL. Clinical relevance of "withdrawal therapy" as a form of hormonal manipulation for breast cancer. World J Surg Oncol 2011; 9:101. [PMID: 21906312 PMCID: PMC3180409 DOI: 10.1186/1477-7819-9-101] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2011] [Accepted: 09/09/2011] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND It has been shown in in-vitro experiments that "withdrawal" of tamoxifen inhibits growth of tumor cells. However, evidence is scarce when this is extrapolated into clinical context. We report our experience to verify the clinical relevance of "withdrawal therapy". METHODS Breast cancer patients since 1998 who fulfilled the following criteria were selected from the departmental database and the case-notes were retrospectively reviewed: (1) estrogen receptor positive, operable primary breast cancer in elderly (age > 70 years), locally advanced or metastatic breast cancer; (2) disease deemed suitable for treatment by hormonal manipulation; (3) disease assessable by UICC criteria; (4) received "withdrawal" from a prior endocrine agent as a form of therapy; (5) on "withdrawal therapy" for ≥ 6 months unless they progressed prior. RESULTS Seventeen patients with median age of 84.3 (53.7-92.5) had "withdrawal therapy" as second to tenth line of treatment following prior endocrine therapy using tamoxifen (n = 10), an aromatase inhibitor (n = 5), megestrol acetate (n = 1) or fulvestrant (n = 1). Ten patients (58.8%) had clinical benefit (CB) (complete response/partial response/stable disease ≥ 6 months) with a median duration of Clinical Benefit (DoCB) of 10+ (7-27) months. Two patients remain on "withdrawal therapy" at the time of analysis. CONCLUSION "Withdrawal therapy" appears to produce sustained CB in a significant proportion of patients. This applies not only to "withdrawal" from tamoxifen, but also from other categories of endocrine agents. "Withdrawal" from endocrine therapy is, therefore, a viable intercalating option between endocrine agents to minimise resistance and provide additional line of therapy. It should be considered as part of the sequencing of endocrine therapy.
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Affiliation(s)
- Amit Agrawal
- Division of Breast Surgery, GEM School, University of Nottingham, Royal Derby Hospital, Derby DE22 3NE, UK.
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