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Ehrenbauer AF, Egge JFM, Gabriel MM, Tiede A, Dirks M, Witt J, Wedemeyer H, Maasoumy B, Weissenborn K. Comparison of 6 tests for diagnosing minimal hepatic encephalopathy and predicting clinical outcome: A prospective, observational study. Hepatology 2024; 80:389-402. [PMID: 38349709 DOI: 10.1097/hep.0000000000000770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 01/10/2024] [Indexed: 03/23/2024]
Abstract
BACKGROUND AND AIMS Current guidelines recommend the assessment for minimal HE in patients with liver cirrhosis. Various efforts were made to find tools that simplify the diagnosis. Here, we compare the 6 most frequently used tests for their validity and their predictive value for overt hepatic encephalopathy (oHE), rehospitalization, and death. APPROACH AND RESULTS One hundred thirty-two patients with cirrhosis underwent the Portosystemic Encephalopathy-Syndrome-Test yielding the psychometric hepatic encephalopathy score (PHES), Animal Naming Test (ANT), Critical Flicker Frequency (CFF), Inhibitory Control Test (ICT), EncephalApp (Stroop), and Continuous Reaction Time Test (CRT). Patients were monitored for 365 days regarding oHE development, rehospitalization, and death. Twenty-three patients showed clinical signs of HE grade 1-2 at baseline. Of the remaining 109 neurologically unimpaired patients, 35.8% had abnormal PHES and 44% abnormal CRT. Percentage of abnormal Stroop (79.8% vs. 52.3%), ANT (19.3% vs. 51.4%), ICT (28.4% vs. 36.7%), and CFF results (18.3% vs. 25.7%) changed significantly when adjusted norms were used for evaluation instead of fixed cutoffs. All test results correlated significantly with each other ( p <0.05), except for CFF. During follow-up, 24 patients developed oHE, 58 were readmitted to the hospital, and 20 died. Abnormal PHES results were linked to oHE development in the multivariable model. No other adjusted test demonstrated predictive value for any of the investigated endpoints. CONCLUSIONS Where applicable, the diagnosis of minimal HE should be made based on adjusted norm values for the tests, exclusively. The minimal HE tests cannot be equated with one another and have an overall limited value in predicting clinical outcomes.
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Affiliation(s)
- Alena F Ehrenbauer
- Department of Neurology, Hannover Medical School, Hannover, Germany
- Department of Gastroenterology, Hepatology, Infectious Diseases and Endocrinology, Hannover Medical School, Hannover, Germany
| | - Julius F M Egge
- Department of Neurology, Hannover Medical School, Hannover, Germany
- Department of Gastroenterology, Hepatology, Infectious Diseases and Endocrinology, Hannover Medical School, Hannover, Germany
| | - Maria M Gabriel
- Department of Neurology, Hannover Medical School, Hannover, Germany
| | - Anja Tiede
- Department of Gastroenterology, Hepatology, Infectious Diseases and Endocrinology, Hannover Medical School, Hannover, Germany
| | - Meike Dirks
- Department of Neurology, Hannover Medical School, Hannover, Germany
| | - Jennifer Witt
- Department of Gastroenterology, Hepatology, Infectious Diseases and Endocrinology, Hannover Medical School, Hannover, Germany
| | - Heiner Wedemeyer
- Department of Gastroenterology, Hepatology, Infectious Diseases and Endocrinology, Hannover Medical School, Hannover, Germany
| | - Benjamin Maasoumy
- Department of Gastroenterology, Hepatology, Infectious Diseases and Endocrinology, Hannover Medical School, Hannover, Germany
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Ayton A, Hicks AJ, Spitz G, Ponsford J. The utility of the Cognitive Reserve Index questionnaire in chronic traumatic brain injury. Clin Neuropsychol 2024; 38:182-201. [PMID: 37035985 DOI: 10.1080/13854046.2023.2196441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Accepted: 03/23/2023] [Indexed: 04/11/2023]
Abstract
Objective: This study examined the relationship between cognitive reserve measured with the Cognitive Reserve Index questionnaire (CRIq) and cognitive and functional outcomes in a chronic traumatic brain injury (TBI) cohort compared to a non-TBI cohort. The utility of the CRIq was compared to common proxies of cognitive reserve (premorbid IQ and years of education) in TBI and non-TBI cohorts. Method: Participants were 105 individuals with moderate-severe TBI (10-33 years post injury) and 91 participants without TBI. Cognitive outcome was examined across four cognitive factors; verbal memory, visual ability and memory, executive attention, and episodic memory. Functional outcome was measured using the Glasgow Outcome Scale Extended. The CRIq total score and three subscale scores (education, work, leisure) were examined. Results: In the TBI cohort, associations were identified between two CRIq subscales and cognitive factors (CRIq education and verbal memory; CRIq work and executive attention). There were no associations between CRIq leisure and cognitive outcomes, or between CRIq and functional outcome. Model selection statistics suggested premorbid IQ and years of education provided a better fit than the CRIq for the relationship between cognitive reserve with two cognitive factors and functional outcome, with neither model providing an improved fit for the remaining two cognitive factors. This finding was broadly consistent in the non-TBI cohort. Conclusion: Cognitive reserve contributes significantly to long-term clinical outcomes following moderate-severe TBI. The relationship between cognitive reserve and long-term cognitive and functional outcomes following TBI is best characterised with traditional proxies of cognitive reserve, mainly premorbid IQ, rather than the CRIq.
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Affiliation(s)
- Amber Ayton
- Monash-Epworth Rehabilitation Research Centre, Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Melbourne, Victoria, Australia
| | - Amelia J Hicks
- Monash-Epworth Rehabilitation Research Centre, Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Melbourne, Victoria, Australia
| | - Gershon Spitz
- Monash-Epworth Rehabilitation Research Centre, Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Melbourne, Victoria, Australia
| | - Jennie Ponsford
- Monash-Epworth Rehabilitation Research Centre, Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Melbourne, Victoria, Australia
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Buján A, Sampaio A, Pinal D. Resting-state electroencephalographic correlates of cognitive reserve: Moderating the age-related worsening in cognitive function. Front Aging Neurosci 2022; 14:854928. [PMID: 36185469 PMCID: PMC9521492 DOI: 10.3389/fnagi.2022.854928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 08/08/2022] [Indexed: 11/23/2022] Open
Abstract
This exploratory study aimed to investigate the resting-state electroencephalographic (rsEEG) correlates of the cognitive reserve from a life span perspective. Current source density (CSD) and lagged-linear connectivity (LLC) measures were assessed to this aim. We firstly explored the relationship between rsEEG measures for the different frequency bands and a socio-behavioral proxy of cognitive reserve, the Cognitive Reserve Index (CRI). Secondly, we applied moderation analyses to assess whether any of the correlated rsEEG measures showed a moderating role in the relationship between age and cognitive function. Moderate negative correlations were found between the CRI and occipital CSD of delta and beta 2. Moreover, inter- and intrahemispheric LLC measures were correlated with the CRI, showing a negative association with delta and positive associations with alpha 1, beta 1, and beta 2. Among those correlated measures, just two rsEEG variables were significant moderators of the relationship between age and cognition: occipital delta CSD and right hemispheric beta 2 LLC between occipital and limbic regions. The effect of age on cognitive performance was stronger for higher values of both measures. Therefore, lower values of occipital delta CSD and lower beta 2 LLC between right occipital and limbic regions might protect or compensate for the effects of age on cognition. Results of this exploratory study might be helpful to allocate more preventive efforts to curb the progression of cognitive decline in adults with less CR, possibly characterized by these rsEEG parameters at a neural level. However, given the exploratory nature of this study, more conclusive work on these rsEEG measures is needed to firmly establish their role in the cognition-age relationship, for example, verifying if these measures moderate the relationship between brain structure and cognition.
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Affiliation(s)
- Ana Buján
- Psychological Neuroscience Laboratory (PNL), Research Center in Psychology (CIPsi), School of Psychology, University of Minho, Braga, Portugal
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Spinelli G, Bakardjian H, Schwartz D, Potier MC, Habert MO, Levy M, Dubois B, George N. Theta Band-Power Shapes Amyloid-Driven Longitudinal EEG Changes in Elderly Subjective Memory Complainers At-Risk for Alzheimer's Disease. J Alzheimers Dis 2022; 90:69-84. [PMID: 36057818 DOI: 10.3233/jad-220204] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
BACKGROUND Alzheimer's disease (AD) includes progressive symptoms spread along a continuum of preclinical and clinical stages. Although numerous studies uncovered the neuro-cognitive changes of AD, very little is known on the natural history of brain lesions and modifications of brain networks in elderly cognitively-healthy memory complainers at risk of AD for carrying pathophysiological biomarkers (amyloidopathy and tauopathy). OBJECTIVE We analyzed resting-state electroencephalography (EEG) of 318 cognitively-healthy subjective memory complainers from the INSIGHT-preAD cohort at the time of their first visit (M0) and two-years later (M24). METHODS Using 18F-florbetapir PET-scanner, subjects were stratified between amyloid negative (A-; n = 230) and positive (A+; n = 88) groups. Differences between A+ and A-were estimated at source-level in each band-power of the EEG spectrum. RESULTS At M0, we found an increase of theta power in the mid-frontal cortex in A+ compared to A-. No significant association was found between mid-frontal theta and the individuals' cognitive performance. At M24, theta power increased in A+ relative to A-individuals in the posterior cingulate cortex and the pre-cuneus. Alpha band revealed a peculiar decremental trend in posterior brain regions in the A+ relative to the A-group only at M24. Theta power increase over the mid-frontal and mid-posterior cortices suggests an hypoactivation of the default-mode network in the A+ individuals and a non-linear longitudinal progression at M24. CONCLUSION We provide the first source-level longitudinal evidence on the impact of brain amyloidosis on the EEG dynamics of a large-scale, monocentric cohort of elderly individuals at-risk for AD.
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Affiliation(s)
- Giuseppe Spinelli
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, APHP, Hôpital de la Pitié Salpêtrière, Centre MEG-EEG, CENIR, Paris, France.,AP-HP, Hôpital de la Pitié-Salpêtrière, Institute of Memory and Alzheimer's Disease (IM2A), Department of Neurology, Paris, France
| | - Hovagim Bakardjian
- AP-HP, Hôpital de la Pitié-Salpêtrière, Institute of Memory and Alzheimer's Disease (IM2A), Department of Neurology, Paris, France
| | | | - Marie-Claude Potier
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, APHP, Hôpital de la Pitié Salpêtrière, Centre MEG-EEG, CENIR, Paris, France
| | - Marie-Odile Habert
- Sorbonne Université, CNRS, INSERM, Laboratoire d'Imagerie Biomédicale, Paris, France.,AP-HP, Hôpital de la Pitié-Salpêtrière, Médecine Nucléaire, Paris, France.,Centre d'Acquisition et Traitement des Images (CATI), http://www.cati-neuroimaging.com
| | - Marcel Levy
- AP-HP, Hôpital de la Pitié-Salpêtrière, Institute of Memory and Alzheimer's Disease (IM2A), Department of Neurology, Paris, France
| | - Bruno Dubois
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, APHP, Hôpital de la Pitié Salpêtrière, Centre MEG-EEG, CENIR, Paris, France.,AP-HP, Hôpital de la Pitié-Salpêtrière, Institute of Memory and Alzheimer's Disease (IM2A), Department of Neurology, Paris, France
| | - Nathalie George
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, APHP, Hôpital de la Pitié Salpêtrière, Centre MEG-EEG, CENIR, Paris, France
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Hansen MKG, Kjærgaard K, Eriksen LL, Grønkjær LL, Mikkelsen ACD, Sandahl TD, Vilstrup H, Thomsen KL, Lauridsen MME. Psychometric methods for diagnosing and monitoring minimal hepatic encephalopathy -current validation level and practical use. Metab Brain Dis 2022; 37:589-605. [PMID: 35102491 DOI: 10.1007/s11011-022-00913-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 01/14/2022] [Indexed: 02/07/2023]
Abstract
Hepatic encephalopathy (HE) is cerebral dysfunction caused by liver failure and inflicts 30-40% of patients with liver cirrhosis during their disease course. Clinically manifest HE is often preceded by minimal HE (MHE) - a clinically undetectable cognitive disturbance closely associated with loss of quality of life. Accordingly, detecting and treating MHE improve the patients' daily functioning and prevent HE-related hospital admissions. The scope of this review article is to create an overview of the validation level and usage of psychometric tests used to detect MHE: Portosystemic hepatic encephalopathy test, continuous reaction time test, Stroop EncephalApp, animal naming test, critical flicker frequency test, and inhibitory control test. Our work is aimed at the clinician or scientist who is about to decide on which psychometric test would fit best in their clinic, cohort, or study. First, we outline psychometric test validation obstacles and requirements. Then, we systematically approach the literature on each test and select well-conducted studies to answer the following questions:• Which percentage of patients with cirrhosis does the test deem as having MHE?• Is the test able to predict clinically manifest HE?• Is there a well-known test-retest variation and inter-observer variation?• Is the test able to detect a treatment response?• Is the test result affected by age, educational level, gender, or comorbidities?
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Affiliation(s)
- Mads Kingo Guldberg Hansen
- Department of Gastroenterology and Hepatology, University Hospital South Denmark, Finsensgade 35, 6700, Esbjerg, Denmark.
| | - Kristoffer Kjærgaard
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus, Denmark
| | - Lotte Lindgreen Eriksen
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus, Denmark
| | - Lea Ladegaard Grønkjær
- Department of Gastroenterology and Hepatology, University Hospital South Denmark, Finsensgade 35, 6700, Esbjerg, Denmark
| | - Anne Catrine Daugaard Mikkelsen
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus, Denmark
| | - Thomas Damgaard Sandahl
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus, Denmark
| | - Hendrik Vilstrup
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus, Denmark
| | - Karen Louise Thomsen
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus, Denmark
| | - Mette Munk Enok Lauridsen
- Department of Gastroenterology and Hepatology, University Hospital South Denmark, Finsensgade 35, 6700, Esbjerg, Denmark
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Tapper EB, Kenney B, Nikirk S, Levine DA, Waljee AK. Animal Naming Test Is Associated With Poor Patient-Reported Outcomes and Frailty in People With and Without Cirrhosis: A Prospective Cohort Study. Clin Transl Gastroenterol 2022; 13:e00447. [PMID: 35080516 PMCID: PMC8806368 DOI: 10.14309/ctg.0000000000000447] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 12/06/2021] [Indexed: 11/17/2022] Open
Abstract
INTRODUCTION Cognitive dysfunction is a major driver of care complexity, poor patient-reported outcomes, and frailty for people with cirrhosis. The performance and clinical associations of the animal naming test (ANT) in the general population are unknown. We evaluated ANT performance in a representative sample of older Americans with and without chronic liver disease (CLD). METHODS We analyzed 6,661 subjects enrolled in the 2010-2016 Health and Retirement Survey, a representative cohort of >30,000 US adults. Average age of participants was 75 years. We evaluated 3 subject subgroups: (i) without CLD, (ii) noncirrhosis CLD, and (iii) cirrhosis. We determined the association between the ANT (overall) and S-ANT1 <10 (adjusted for age and education) and health status, basic and instrumental activities of daily living, healthcare utilization (care hours received and hospitalizations), and frailty measures (hand grip and walk speed). RESULTS Overall, 8.2% of the sample had noncirrhotic CLD and 1.3% had cirrhosis. CLD or cirrhosis was not independently associated with ANT. Poor ANT performance was associated with poor health status and frailty overall. An S-ANT <10 was associated with fair-poor self-reported health (odds ratio [OR] 1.37; 95% confidence interval [CI]: 1.20-1.56), care hours received (incidence rate ratio [IRR] 2.39; 95% CI: 1.79-3.19), and hospitalizations (IRR 1.14; 95% CI: 1.03-1.26). S-ANT <10 was also associated with activities of daily living disability (OR 1.31; 95% CI: 1.13-1.51), instrumental activities of daily living disability (OR 1.85; 95% CI: 1.59-2.14), weaker hand grip (IRR 0.94; 95% CI: 0.92-0.96), and time to walk 2.5 m (IRR 1.23; 95% CI: 1.17-1.29). DISCUSSION ANT performance is not specific to CLD/cirrhosis but is associated with patient-reported outcomes and frailty in a nationally representative sample of elderly subjects with and without CLD.
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Affiliation(s)
- Elliot B. Tapper
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Brooke Kenney
- Center for Clinical Management Research, Veterans Affairs Ann Arbor Health System, Ann Arbor, Michigan, USA
| | - Samantha Nikirk
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Deborah A. Levine
- Division of General Medicine, Department of Internal Medicine and Cognitive Health Services Research Program, University of Michigan (U-M), Ann Arbor, Michigan, USA
| | - Akbar K. Waljee
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
- Center for Clinical Management Research, Veterans Affairs Ann Arbor Health System, Ann Arbor, Michigan, USA
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Balart-Sánchez SA, Bittencourt-Villalpando M, van der Naalt J, Maurits NM. Electroencephalography, Magnetoencephalography, and Cognitive Reserve: A Systematic Review. Arch Clin Neuropsychol 2021; 36:1374-1391. [PMID: 33522563 PMCID: PMC8517624 DOI: 10.1093/arclin/acaa132] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 10/20/2020] [Accepted: 12/28/2020] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE Cognitive reserve (CR) is the capacity to adapt to (future) brain damage without any or only minimal clinical symptoms. The underlying neuroplastic mechanisms remain unclear. Electrocorticography (ECOG), electroencephalography (EEG), and magnetoencephalography (MEG) may help elucidate the brain mechanisms underlying CR, as CR is thought to be related to efficient utilization of remaining brain resources. The purpose of this systematic review is to collect, evaluate, and synthesize the findings on neural correlates of CR estimates using ECOG, EEG, and MEG. METHOD We examined articles that were published from the first standardized definition of CR. Eleven EEG and five MEG cross-sectional studies met the inclusion criteria: They concerned original research, analyzed (M)EEG in humans, used a validated CR estimate, and related (M)EEG to CR. Quality assessment was conducted using an adapted form of the Newcastle-Ottawa scale. No ECOG study met the inclusion criteria. RESULTS A total of 1383 participants from heterogeneous patient, young and older healthy groups were divided into three categories by (M)EEG methodology: Eight (M)EEG studies employed event-related fields or potentials, six studies analyzed brain oscillations at rest (of which one also analyzed a cognitive task), and three studies analyzed brain connectivity. Various CR estimates were employed and all studies compared different (M)EEG measures and CR estimates. Several associations between (M)EEG measures and CR estimates were observed. CONCLUSION Our findings support that (M)EEG measures are related to CR estimates, particularly in healthy individuals. However, the character of this relationship is dependent on the population and task studied, warranting further studies.
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Affiliation(s)
- Sebastián A Balart-Sánchez
- Department of Neurology, University Medical Center Groningen, University of Groningen, Groningen, 9700 RB, Netherlands
- Research School of Behavioural and Cognitive Neurosciences, University of Groningen, Groningen, 9713 AV, Netherlands
| | - Mayra Bittencourt-Villalpando
- Department of Neurology, University Medical Center Groningen, University of Groningen, Groningen, 9700 RB, Netherlands
- Research School of Behavioural and Cognitive Neurosciences, University of Groningen, Groningen, 9713 AV, Netherlands
| | - Joukje van der Naalt
- Department of Neurology, University Medical Center Groningen, University of Groningen, Groningen, 9700 RB, Netherlands
- Research School of Behavioural and Cognitive Neurosciences, University of Groningen, Groningen, 9713 AV, Netherlands
| | - Natasha M Maurits
- Department of Neurology, University Medical Center Groningen, University of Groningen, Groningen, 9700 RB, Netherlands
- Research School of Behavioural and Cognitive Neurosciences, University of Groningen, Groningen, 9713 AV, Netherlands
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8
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García-Moreno JA, Cañadas-Pérez F, García-García J, Roldan-Tapia MD. Cognitive Reserve and Anxiety Interactions Play a Fundamental Role in the Response to the Stress. Front Psychol 2021; 12:673596. [PMID: 34539485 PMCID: PMC8446200 DOI: 10.3389/fpsyg.2021.673596] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Accepted: 08/03/2021] [Indexed: 12/21/2022] Open
Abstract
The aims of the present study were to assess the possible interaction between Cognitive Reserve (CR) and State Anxiety (SA) on adrenocortical and physiological responses in coping situations. Forty healthy, middle-aged men completed the Cognitive Reserve Scale and the State-Trait Anxiety Inventory. We used an Observational Fear Conditioning (OFC) paradigm in order to assess emotional learning and to induce stress. Electrodermal activity (EDA) and salivary cortisol concentrations were measured throughout the conditions. Our results indicate that those who indicated having higher state anxiety showed a lower capacity for learning the contingency, along with presenting higher salivary cortisol peak response following the observational fear-conditioning paradigm. The most prominent finding was the interaction between cognitive reserve and state anxiety on cortisol response to the post observational fear-conditioning paradigm. Thus, those who showed a high anxiety-state and, at the same time, a high cognitive reserve did not present an increased salivary cortisol response following the observational fear-conditioning paradigm. Given these results, we postulate that the state anxiety reported by participants, reflects emotional activation that hinders the attention needed to process and associate emotional stimuli. However, cognitive reserve has an indirect relation with conditioning, enabling better emotional learning. In this context, cognitive reserve demonstrated a protective effect on hormonal response in coping situations, when reported anxiety or emotional activation were high. These findings suggest that cognitive reserve could be used as a tool to deal with the effects of stressors in life situations, limiting development of the allostatic load.
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Affiliation(s)
- Jose A García-Moreno
- CERNEP Research Center, University of Almeria, Almería, Spain.,CEINSAUAL Research Center, University of Almeria, Almería, Spain
| | - Fernando Cañadas-Pérez
- CERNEP Research Center, University of Almeria, Almería, Spain.,CEINSAUAL Research Center, University of Almeria, Almería, Spain
| | | | - María D Roldan-Tapia
- CERNEP Research Center, University of Almeria, Almería, Spain.,CEINSAUAL Research Center, University of Almeria, Almería, Spain
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9
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Khachatryan E, Wittevrongel B, Perovnik M, Tournoy J, Schoenmakers B, Van Hulle MM. Electrophysiological Proxy of Cognitive Reserve Index. Front Hum Neurosci 2021; 15:690856. [PMID: 34305555 PMCID: PMC8295460 DOI: 10.3389/fnhum.2021.690856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Accepted: 05/31/2021] [Indexed: 11/19/2022] Open
Abstract
Cognitive reserve (CR) postulates that individual differences in task performance can be attributed to differences in the brain’s ability to recruit additional networks or adopt alternative cognitive strategies. Variables that are descriptive of lifetime experience such as socioeconomic status, educational attainment, and leisure activity are common proxies of CR. CR is mostly studied using neuroimaging techniques such as functional MRI (fMRI) in which case individuals with a higher CR were observed to activate a smaller brain network compared to individuals with a lower CR, when performing a task equally effectively (higher efficiency), and electroencephalography (EEG) where a particular EEG component (P300) that reflects the attention and working memory load, has been targeted. Despite the contribution of multiple factors such as age, education (formal and informal), working, leisure, and household activities in CR formation, most neuroimaging studies, and those using EEG in particular, focus on formal education level only. The aim of the current EEG study is to investigate how the P300 component, evoked in response to an oddball paradigm, is associated with other components of CR besides education, such as working and leisure activity in older adults. We have used hereto a recently introduced CR index questionnaire (CRIq) that quantifies both professional and leisure activities in terms of their cognitive demand and number of years practiced, as well as a data-driven approach for EEG analysis. We observed complex relationships between CRIq subcomponents and P300 characteristics. These results are especially important given that, unlike previous studies, our measurements (P300 and CRIq) do not require active use of the same executive function and, thus, render our results free of a collinearity bias.
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Affiliation(s)
- Elvira Khachatryan
- Laboratory for Neuro- and Psychophysiology, Department of Neurosciences, KU Leuven, Leuven, Belgium.,Leuven Brain Institute, Leuven, Belgium
| | - Benjamin Wittevrongel
- Laboratory for Neuro- and Psychophysiology, Department of Neurosciences, KU Leuven, Leuven, Belgium.,Leuven Brain Institute, Leuven, Belgium
| | - Matej Perovnik
- Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia.,Department of Neurology, University Medical Center, Ljubljana, Slovenia
| | - Jos Tournoy
- Department of Geriatrics and Gerontology, KU Leuven, Leuven, Belgium
| | | | - Marc M Van Hulle
- Laboratory for Neuro- and Psychophysiology, Department of Neurosciences, KU Leuven, Leuven, Belgium.,Leuven Brain Institute, Leuven, Belgium
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10
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Quattropani MC, Sardella A, Morgante F, Ricciardi L, Alibrandi A, Lenzo V, Catalano A, Squadrito G, Basile G. Impact of Cognitive Reserve and Premorbid IQ on Cognitive and Functional Status in Older Outpatients. Brain Sci 2021; 11:824. [PMID: 34206258 PMCID: PMC8301973 DOI: 10.3390/brainsci11070824] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 06/18/2021] [Accepted: 06/20/2021] [Indexed: 11/29/2022] Open
Abstract
The study aimed to investigate cross-sectionally the associations of cognitive reserve (CR) and premorbid IQ with cognitive and functional status in a cohort of older outpatients. Additionally, we evaluated the association of CR and premorbid IQ with the worsening of patients' cognitive status at one-year follow-up. We originally included 141 outpatients (mean age 80.31 years); a telephone-based cognitive follow-up was carried out after one year, including 104 subjects (mean age 80.26 years). CR (β = 0.418), premorbid IQ (β = 0.271) and handgrip strength (β = 0.287) were significantly associated with the MMSE score. The cognitive worsening at follow-up was associated with lower CR, lower MMSE score, reduced gait speed and frailty exhibited at baseline. Univariate linear regressions showed that CR was associated with handgrip strength (β = 0.346), gait speed (β = 0.185), autonomy in basic (β = 0.221) and instrumental (β = 0.272) daily activities, and frailty (β = -0.290); premorbid IQ was significantly associated with autonomy in instrumental daily activities (β = 0.211). These findings highlight the need for integrating CR and premorbid IQ with physical and motor measures when appraising predictors of cognitive decline in the elderly population. The study also newly extends the link of CR and premorbid IQ to the functional status in older adults.
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Affiliation(s)
- Maria C. Quattropani
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy; (M.C.Q.); (F.M.); (A.C.); (G.S.); (G.B.)
| | - Alberto Sardella
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy; (M.C.Q.); (F.M.); (A.C.); (G.S.); (G.B.)
| | - Francesca Morgante
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy; (M.C.Q.); (F.M.); (A.C.); (G.S.); (G.B.)
- Neurosciences Research Centre, Molecular and Clinical Sciences Research Institute, St George’s University of London, London SW17 0RE, UK;
| | - Lucia Ricciardi
- Neurosciences Research Centre, Molecular and Clinical Sciences Research Institute, St George’s University of London, London SW17 0RE, UK;
- Medical Research Council Brain Network Dynamics Unit, Nuffield Department of Clinical Neurosciences, Oxford OX1 3TH, UK
| | - Angela Alibrandi
- Unit of Statistical and Mathematical Science, Department of Economics, University of Messina, 98123 Messina, Italy;
| | - Vittorio Lenzo
- Department of Social and Educational Sciences of the Mediterranean Area, “Dante Alighieri” University for Foreigners of Reggio Calabria, 89125 Reggio Calabria, Italy;
| | - Antonino Catalano
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy; (M.C.Q.); (F.M.); (A.C.); (G.S.); (G.B.)
| | - Giovanni Squadrito
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy; (M.C.Q.); (F.M.); (A.C.); (G.S.); (G.B.)
| | - Giorgio Basile
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy; (M.C.Q.); (F.M.); (A.C.); (G.S.); (G.B.)
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Formentin C, Zarantonello L, Mangini C, Frigo AC, Montagnese S, Merkel C. Clinical, neuropsychological and neurophysiological indices and predictors of hepatic encephalopathy (HE). Liver Int 2021; 41:1070-1082. [PMID: 33411388 DOI: 10.1111/liv.14785] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 12/30/2020] [Accepted: 01/01/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND AIMS The occurrence of overt hepatic encephalopathy (HE) marks a significant progression in the natural history of liver disease. The aims of the present study were to: 1) describe a large cohort of patients with cirrhosis in terms of neuropsychological or neurophysiological HE indices, and 2) test if the severity of liver disease and/or any such indices [Psychometric Hepatic Encephalopathy Score (PHES), Scan test, electroencephalography (EEG)] predicted mortality/HE risk in a subgroup of such cohort. METHOD Four hundred and sixty-one patients with cirrhosis (59 ± 10 years; 345 males) were included; information on previous overt HE episodes was available in 407. Follow-up information on mortality/HE-related hospitalization in 134/127 respectively. Information on previous overt HE episodes and both mortality and HE-related hospitalization over the follow-up in 124. RESULTS Patients with a history of overt HE (60%) had poorer liver function, worse neuropsychiatric indices, higher ammonia levels and higher prevalence of portal-systemic shunt. The risk of HE-related hospitalization over the follow-up was higher in patients with higher MELD score and worse Scan performance. Mortality was higher in those with higher MELD. Among patients without a history of overt HE, those with worse PHES had higher HE risk. Among patients with a history, those with higher MELD, better PHES and worse Scan performance had higher HE risk. CONCLUSIONS In patients without previous overt HE episodes, neuropsychological and neurophysiological tests predict HE, while in those with previous overt HE episodes, HE development largely depends on the severity of liver dysfunction.
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Affiliation(s)
- Chiara Formentin
- Department of Medicine, and Department of Cardiac-Thoracic-Vascular Sciences and Public Health, University of Padova, Padova, Italy
| | - Lisa Zarantonello
- Department of Medicine, and Department of Cardiac-Thoracic-Vascular Sciences and Public Health, University of Padova, Padova, Italy
| | - Chiara Mangini
- Department of Medicine, and Department of Cardiac-Thoracic-Vascular Sciences and Public Health, University of Padova, Padova, Italy
| | - Anna C Frigo
- Department of Medicine, and Department of Cardiac-Thoracic-Vascular Sciences and Public Health, University of Padova, Padova, Italy
| | - Sara Montagnese
- Department of Medicine, and Department of Cardiac-Thoracic-Vascular Sciences and Public Health, University of Padova, Padova, Italy
| | - Carlo Merkel
- Department of Medicine, and Department of Cardiac-Thoracic-Vascular Sciences and Public Health, University of Padova, Padova, Italy
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12
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Šneidere K, Mondini S, Stepens A. Role of EEG in Measuring Cognitive Reserve: A Rapid Review. Front Aging Neurosci 2020; 12:249. [PMID: 33005143 PMCID: PMC7479054 DOI: 10.3389/fnagi.2020.00249] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 07/20/2020] [Indexed: 12/28/2022] Open
Abstract
This review aimed to systematically summarize the possible neural correlates of cognitive reserve thus giving an insight into prospective biomarkers for the concept. A total of 44 studies were analyzed following PRISMA guidelines and four studies were included in the further analysis. The results indicated a relationship between P3b waveform and cognitive reserve, while more ambiguous outcomes were found when conducting resting-state EEG. This review indicates the first steps into assessing CR using physiological measures; however, more research is needed for deeper understanding of its underlying mechanisms.
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Affiliation(s)
- Kristı̄ne Šneidere
- Military Medicine Research and Study Centre, Rı̄ga Stradiņš University, Riga, Latvia
- Department of Health Psychology and Paedagogy, Rı̄ga Stradiņš University, Riga, Latvia
| | - Sara Mondini
- Department of Philosophy, Sociology, Pedagogy and Applied Psychology, University of Padua, Padua, Italy
| | - Ainārs Stepens
- Military Medicine Research and Study Centre, Rı̄ga Stradiņš University, Riga, Latvia
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13
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Baiges A, Turon F, Simón-Talero M, Tasayco S, Bueno J, Zekrini K, Plessier A, Franchi-Abella S, Guerin F, Mukund A, Eapen CE, Goel A, Shyamkumar NK, Coenen S, De Gottardi A, Majumdar A, Onali S, Shukla A, Carrilho FJ, Nacif L, Primignani M, Tosetti G, La Mura V, Nevens F, Witters P, Tripathi D, Tellez L, Martínez J, Álvarez-Navascués C, Fraile López ML, Procopet B, Piscaglia F, de Koning B, Llop E, Romero-Cristobal M, Tjwa E, Monescillo-Francia A, Senzolo M, Perez-LaFuente M, Segarra A, Sarin SK, Hernández-Gea V, Patch D, Laleman W, Hartog H, Valla D, Genescà J, García-Pagán JC. Congenital Extrahepatic Portosystemic Shunts (Abernethy Malformation): An International Observational Study. Hepatology 2020; 71:658-669. [PMID: 31211875 DOI: 10.1002/hep.30817] [Citation(s) in RCA: 84] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Accepted: 05/21/2019] [Indexed: 12/27/2022]
Abstract
Congenital extrahepatic portosystemic shunt (CEPS) or Abernethy malformation is a rare condition in which splanchnic venous blood bypasses the liver draining directly into systemic circulation through a congenital shunt. Patients may develop hepatic encephalopathy (HE), pulmonary hypertension (PaHT), or liver tumors, among other complications. However, the actual incidence of such complications is unknown, mainly because of the lack of a protocolized approach to these patients. This study characterizes the clinical manifestations and outcome of a large cohort of CEPS patients with the aim of proposing a guide for their management. This is an observational, multicenter, international study. Sixty-six patients were included; median age at the end of follow-up was 30 years. Nineteen patients (28%) presented HE. Ten-, 20-, and 30-year HE incidence rates were 13%, 24%, and 28%, respectively. No clinical factors predicted HE. Twenty-five patients had benign nodular lesions. Ten patients developed adenomas (median age, 18 years), and another 8 developed HCC (median age, 39 years). Of 10 patients with dyspnea, PaHT was diagnosed in 8 and hepatopulmonary syndrome in 2. Pulmonary complications were only screened for in 19 asymptomatic patients, and PaHT was identified in 2. Six patients underwent liver transplantation for hepatocellular carcinoma or adenoma. Shunt closure was performed in 15 patients with improvement/stability/cure of CEPS manifestations. Conclusion: CEPS patients may develop severe complications. Screening for asymptomatic complications and close surveillance is needed. Shunt closure should be considered both as a therapeutic and prophylactic approach.
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Affiliation(s)
- Anna Baiges
- Barcelona Hepatic Hemodynamic Laboratory, Liver Unit, Hospital Clínic de Barcelona, IDIBAPS, CIBERehd, Universitat de Barcelona, Barcelona, Spain
| | - Fanny Turon
- Barcelona Hepatic Hemodynamic Laboratory, Liver Unit, Hospital Clínic de Barcelona, IDIBAPS, CIBERehd, Universitat de Barcelona, Barcelona, Spain
| | - Macarena Simón-Talero
- Liver Unit, Department of Internal Medicine, Hospital Universitari Vall d'Hebrón, VHIR, CIBERehd, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Stephanie Tasayco
- Liver Unit, Department of Internal Medicine, Hospital Universitari Vall d'Hebrón, VHIR, CIBERehd, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Javier Bueno
- Pediatric Surgery Department, Hospital Universitari Vall d'Hebrón, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Kamal Zekrini
- DHU Unity, Pôle des Maladies de l'Appareil Digestif, Service d'Hépatologie, Centre de Référence des Maladies Vasculaires du Foie, Hôpital Beaujon, AP-HP, Clichy, France
| | - Aurélie Plessier
- DHU Unity, Pôle des Maladies de l'Appareil Digestif, Service d'Hépatologie, Centre de Référence des Maladies Vasculaires du Foie, Hôpital Beaujon, AP-HP, Clichy, France
| | - Stéphanie Franchi-Abella
- Service d'Hépatologie et de Transplantation Hépatique et de radiologie Pédiatriques, Groupement Hospitalier Paris Sud (GHUPS), Hôpital Bicêtre, Le Kremlin Bicetre, France
| | - Florent Guerin
- Service d'Hépatologie et de Transplantation Hépatique et de radiologie Pédiatriques, Groupement Hospitalier Paris Sud (GHUPS), Hôpital Bicêtre, Le Kremlin Bicetre, France
| | - Amar Mukund
- Department of Radiology, Institute of Liver and Biliary Sciences, New Delhi, India
| | - C E Eapen
- Hepatology Department, Christian Medical College, Vellore, India
| | - Ashish Goel
- Hepatology Department, Christian Medical College, Vellore, India
| | | | - Sandra Coenen
- Department of Gastroenterology and Hepatology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Andrea De Gottardi
- Hepatology, Clinic of Visceral Surgery and Medicine, Inselspital and Department of Clinical Research, University of Bern, Bern, Switzerland
| | - Avik Majumdar
- Sheila Sherlock Liver Unit and UCL Institute for Liver and Digestive Health, Royal Free Hospital and UCL, London, United Kingdom
| | - Simona Onali
- Sheila Sherlock Liver Unit and UCL Institute for Liver and Digestive Health, Royal Free Hospital and UCL, London, United Kingdom
| | - Akash Shukla
- Department of Gastroenterology, Seth G S Medical College & KEM Hospital, Mumbai, Maharashtra, India
| | - Flair José Carrilho
- Digestive Organ Transplantation Division, Department of Gastroenterology, Faculty of Medicine, University of São Paulo, São Paulo, Brazil
| | - Lucas Nacif
- Digestive Organ Transplantation Division, Department of Gastroenterology, Faculty of Medicine, University of São Paulo, São Paulo, Brazil
| | - Massimo Primignani
- A. M. e A. Migliavacca Center for Liver Disease, Division of Gastroenterology and Hepatology, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy
| | - Giulia Tosetti
- A. M. e A. Migliavacca Center for Liver Disease, Division of Gastroenterology and Hepatology, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy
| | - Vicenzo La Mura
- A. M. e A. Migliavacca Center for Liver Disease, Division of Gastroenterology and Hepatology, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy.,Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, UOC Medicina Generale Emostasi e Trombosi, Milano, Italy
| | - Frederik Nevens
- Department of Gastroenterology and Hepatology, University Hospitals Leuven, KU Leuven, Leuven, Belgium
| | - Peter Witters
- Department of Gastroenterology and Hepatology, University Hospitals Leuven, KU Leuven, Leuven, Belgium
| | - Dhiraj Tripathi
- Liver Unit, Queen Elisabeth Hospital, Birmingham, United Kingdom
| | - Luis Tellez
- Department of Gastroenterology and Hepatology, Hospital Universitario Ramón y Cajal, IRYCIS, University of Alcalá, CIBERedh, Madrid, Spain
| | - Javier Martínez
- Department of Gastroenterology and Hepatology, Hospital Universitario Ramón y Cajal, IRYCIS, University of Alcalá, CIBERedh, Madrid, Spain
| | | | | | - Bogdan Procopet
- Department of Gastroenterology, 3rd Medical Clinic, University of Medicine and Pharmacy "Iuliu Hatieganu", Regional Institute of Gastroenterology and Hepatology "O Fodor", Cluj-Napoca, Romania
| | - Fabio Piscaglia
- Unit of Internal Medicine, Department of Medical and Surgical Sciences, University of Bologna, S. Orsola-Malpighi Hospital, Bologna, Italy
| | - Barbara de Koning
- Division of Pediatric Gastroenterology, Erasmus MC-Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Elba Llop
- Liver Unit, Hospital U. Puerta de Hierro, Universidad Autónoma de Madrid, Madrid, Spain
| | - Mario Romero-Cristobal
- Digestive Diseases and Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas Hospital General Universitario Gregorio Marañón Instituto de Investigación Sanitaria Gregorio Marañón Facultad de Medicina, Universidad Complutense, Madrid, Spain
| | - Eric Tjwa
- Department of Gastroenterology and Hepatology, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Alberto Monescillo-Francia
- Digestive Disease Department, Complejo Hospitalario Universitario Insular-Materno Infantil, Las Palmas de Gran Canaria, España
| | - Marco Senzolo
- Multivisceral Transplant Unit, Department of Surgery, Oncology and Gastroenterology, Padua University Hospital, Padua, Italy
| | - Mercedes Perez-LaFuente
- Interventional Radiology Unit, Hospital Universitari Vall d'Hebrón, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Antonio Segarra
- Interventional Radiology Unit, Hospital Universitari Vall d'Hebrón, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Shiv Kumar Sarin
- Department of Hepatology, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Virginia Hernández-Gea
- Barcelona Hepatic Hemodynamic Laboratory, Liver Unit, Hospital Clínic de Barcelona, IDIBAPS, CIBERehd, Universitat de Barcelona, Barcelona, Spain
| | - David Patch
- Sheila Sherlock Liver Unit and UCL Institute for Liver and Digestive Health, Royal Free Hospital and UCL, London, United Kingdom
| | - Wim Laleman
- Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, UOC Medicina Generale Emostasi e Trombosi, Milano, Italy
| | - Hermien Hartog
- Department of Gastroenterology and Hepatology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Dominique Valla
- DHU Unity, Pôle des Maladies de l'Appareil Digestif, Service d'Hépatologie, Centre de Référence des Maladies Vasculaires du Foie, Hôpital Beaujon, AP-HP, Clichy, France
| | - Joan Genescà
- Liver Unit, Department of Internal Medicine, Hospital Universitari Vall d'Hebrón, VHIR, CIBERehd, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Juan Carlos García-Pagán
- Barcelona Hepatic Hemodynamic Laboratory, Liver Unit, Hospital Clínic de Barcelona, IDIBAPS, CIBERehd, Universitat de Barcelona, Barcelona, Spain
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Senzolo M, Zarantonello L, Formentin C, Orlando C, Beltrame R, Vuerich A, Angeli P, Burra P, Montagnese S. Predictive value of induced hyperammonaemia and neuropsychiatric profiling in relation to the occurrence of post-TIPS hepatic encephalopathy. Metab Brain Dis 2019; 34:1803-1812. [PMID: 31506797 DOI: 10.1007/s11011-019-00490-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 09/03/2019] [Indexed: 01/16/2023]
Abstract
Hepatic encephalopathy (HE) occurs in 20-50% of patients after transjugular intrahepatic portosystemic shunt (TIPS) placement. Older age, HE history and severe liver failure have all been associated with post-TIPS HE but it remains difficult to identify patients at risk. The aim of the present pathophysiological, pilot study was to assess the role of induced hyperammonaemia and associated neuropsychological and neurophysiological changes as predictors of post-TIPS HE. Eighteen TIPS candidates with no overt HE history (56 ± 8 yrs., MELD 11 ± 3) underwent neurophysiological [Electroencephalography (EEG)], neuropsychological [Psychometric Hepatic Encephalopathy Score (PHES) and Scan tests], ammonia and sleepiness assessment at baseline and after the induction of hyperammonaemia by an oral amino acid challenge (AAC). Pre-AAC, 17% of patients had abnormal EEG, 5% abnormal PHES, and 33% abnormal Scan performance. Post-AAC, 17% had abnormal EEG, 0% abnormal PHES, and 17% abnormal Scan performance. Pre-AAC, ammonia concentrations were 201 ± 73 μg/dL and subjective sleepiness 2.5 ± 1.2 (1-9 scale). Post-AAC, patients exhibited the expected increase in ammonia/sleepiness. Six months post-TIPS, 3 patients developed an episode of HE requiring hospitalization; these showed significantly lower pre-AAC fasting ammonia concentrations compared to patients who did not develop HE (117 ± 63 vs. 227 ± 57 μg/dL p = 0.015). They also showed worse PHES/Scan performance pre-AAC, and worse Scan performance post-AAC. Findings at 12 months follow-up (n = 5 HE episodes) were comparable. In conclusion, baseline ammonia levels and both pre- and post-AAC neuropsychiatric indices hold promise in defining HE risk in TIPS candidates with no HE history.
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Affiliation(s)
- Marco Senzolo
- Multivisceral Transplant Unit, Department of Surgical and Gastroenterological Sciences, University of Padova, Padova, Italy
| | | | | | - Costanza Orlando
- Multivisceral Transplant Unit, Department of Surgical and Gastroenterological Sciences, University of Padova, Padova, Italy
| | - Raffaello Beltrame
- Multivisceral Transplant Unit, Department of Surgical and Gastroenterological Sciences, University of Padova, Padova, Italy
| | - Anna Vuerich
- Department of Medicine, University of Padova, Padova, Italy
| | - Paolo Angeli
- Department of Medicine, University of Padova, Padova, Italy
| | - Patrizia Burra
- Multivisceral Transplant Unit, Department of Surgical and Gastroenterological Sciences, University of Padova, Padova, Italy
| | - Sara Montagnese
- Department of Medicine, University of Padova, Padova, Italy.
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15
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Kartschmit N, Mikolajczyk R, Schubert T, Lacruz ME. Measuring Cognitive Reserve (CR) - A systematic review of measurement properties of CR questionnaires for the adult population. PLoS One 2019; 14:e0219851. [PMID: 31390344 PMCID: PMC6685632 DOI: 10.1371/journal.pone.0219851] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 07/02/2019] [Indexed: 02/07/2023] Open
Abstract
Aim The aim of this systematic review was to summarize and critically appraise the quality of published literature on measurement properties of questionnaires assessing Cognitive Reserve (CR) in adults (>18 years). Methods We systematically searched for published studies on MEDLINE, PsycINFO, and Web of Science through August 2018. We evaluated the methodological quality of the included studies and the results on measurement properties based on a consensus-based standard checklist. Results The search strategy identified 991 publications, of which 37 were selected evaluating the measurement properties of six different questionnaires. Construct validity of the Cognitive Reserve Index questionnaire was most extensively evaluated, while evaluation of the remaining measurement properties of this questionnaire was scarce. Measurement properties of the Cognitive Reserve Questionnaire and the Cognitive Reserve Scale were assessed more completely. While the Lifetime of Experience Questionnaire seems to be the most thorough instrument, a finale recommendation for one specific questionnaire cannot be drawn, since about half of the measurement properties for each questionnaire were poorly or not assessed at all. Conclusions There is a need of high quality methodological studies assessing measurement properties of CR questionnaires, especially regarding content validity, structural validity, and responsiveness. Trial registration PROSPERO Registration number CRD42018107766.
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Affiliation(s)
- Nadja Kartschmit
- Institute for Medical Epidemiology, Biometrics, and Informatics (IMEBI), Medical Faculty of the Martin Luther University Halle-Wittenberg, Halle, Germany
| | - Rafael Mikolajczyk
- Institute for Medical Epidemiology, Biometrics, and Informatics (IMEBI), Medical Faculty of the Martin Luther University Halle-Wittenberg, Halle, Germany
- * E-mail:
| | - Torsten Schubert
- Department of Psychology, Martin-Luther University Halle-Wittenberg, Halle, Germany
| | - Maria Elena Lacruz
- Institute for Medical Epidemiology, Biometrics, and Informatics (IMEBI), Medical Faculty of the Martin Luther University Halle-Wittenberg, Halle, Germany
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Abstract
Hepatic encephalopathy (HE) has a major impact on health-related quality of life (HRQOL) in patients, which has clinical and psychosocial consequences. HRQOL in cirrhosis has been measured by generic and liver-specific instruments, with most studies indicating a negative impact of HE. HRQOL abnormalities span daily functioning, sleep–wake cycle changes, and the ability to work. Of these, sleep–wake cycle changes have a major effect on HRQOL, which remains challenging to treat. The personal effect of HRQOL is modulated by the presence of HE, the etiology of cirrhosis, and cognitive reserve. Patients with higher cognitive reserve are able to tolerate HE and its impact on HRQOL better than those with a poor cognitive reserve. The impact of HRQOL impairment is felt by patients (higher mortality and poor daily functioning), as well as by caregivers and families. Caregivers of patients with HE bear a major financial and psychological burden, which may affect their personal health and longevity.
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Kornerup LS, Pflugrad H, Weissenborn K, Vilstrup H, Dam G. Cognitive impairment after liver transplantation: residual hepatic encephalopathy or posttransplant encephalopathy? Hepat Med 2019; 11:41-46. [PMID: 31040728 PMCID: PMC6456244 DOI: 10.2147/hmer.s144667] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 02/25/2019] [Indexed: 12/22/2022] Open
Abstract
Liver transplantation (LT) represents the definitive treatment for end-stage liver disease. Cognitive impairment following LT is frequent, referred to as postliver transplant encephalopathy (PLTE). LT removes the underlying chronic liver disease, and until recently hepatic encephalopathy (HE) was assumed to be fully reversible after LT. However, increasing evidence indicates that some degree of cognitive impairment may be present after LT. To which extent PLTE reflects cognitive impairment caused by residual HE (RHE) or the combined effect of other factors affecting brain function before, during, and after LT is not clarified. None of the available psychometric and neurophysiological tests used for detecting HE is shown to be able to distinguish between etiologies. The available, mostly retrospective, clinical studies indicate a high prevalence of abnormal psychometric tests after LT, and not all seem to recover completely. The patients with earlier HE show the most marked improvements, suggesting that the clinical picture of the early PLTE, in fact, represents RHE. Other early post-LT etiologies for PLTE comprise cerebral ischemia, critical illness encephalopathy, and immunosuppressive therapy. Late-onset etiologies comprise diabetes and hypertension, among others. PLTE regardless of etiology is a worrying issue and needs more attention in the form of mechanistic research, development of diagnostic/discriminative tools, and standardized prospective clinical studies.
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Affiliation(s)
- Linda Skibsted Kornerup
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus N, Denmark
| | - Henning Pflugrad
- Department of Neurology, Hannover Medical School, Hannover, Germany
| | | | - Hendrik Vilstrup
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus N, Denmark
| | - Gitte Dam
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus N, Denmark
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18
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Flamm SL. Complications of Cirrhosis in Primary Care: Recognition and Management of Hepatic Encephalopathy. Am J Med Sci 2018; 356:296-303. [PMID: 30286824 DOI: 10.1016/j.amjms.2018.06.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 05/24/2018] [Accepted: 06/08/2018] [Indexed: 12/13/2022]
Abstract
Approximately 3.7% of patients in primary care settings have chronic liver disease, and 18% with chronic liver disease in the specialty care setting have cirrhosis. For cirrhotic patients without complications, prognosis is generally favorable; increased morbidity and mortality are observed when complications (i.e., hepatic encephalopathy [HE]) occur. HE occurs in up to 70% of patients with cirrhosis. Neurologic signs in HE span a wide spectrum, from those not easily apparent (covert) to more clinically obvious signs (overt). Providers should consider overt HE in patients with cirrhosis and signs of impaired cognition, confusion, consciousness and/or personality changes, and/or impaired memory. Overt HE treatment includes identifying and treating precipitating factors and reducing bacterial-derived toxin loads. For acute overt HE, lactulose is first-line treatment. To prevent HE recurrence, lactulose plus rifaximin is recommended. Patients with cirrhosis and HE often present in primary care; recognizing and properly managing HE are important in this setting.
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Affiliation(s)
- Steven L Flamm
- Northwestern University Feinberg School of Medicine, Chicago, Illinois.
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