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Kim M, Lee J, Lee SY, Ha M, Park I, Jang J, Jang M, Park S, Kwon JS. Development of an eye-tracking system based on a deep learning model to assess executive function in patients with mental illnesses. Sci Rep 2024; 14:18186. [PMID: 39107349 PMCID: PMC11303748 DOI: 10.1038/s41598-024-68586-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2024] [Accepted: 07/25/2024] [Indexed: 08/10/2024] Open
Abstract
Patients with mental illnesses, particularly psychosis and obsessive‒compulsive disorder (OCD), frequently exhibit deficits in executive function and visuospatial memory. Traditional assessments, such as the Rey‒Osterrieth Complex Figure Test (RCFT), performed in clinical settings require time and effort. This study aimed to develop a deep learning model using the RCFT and based on eye tracking to detect impaired executive function during visuospatial memory encoding in patients with mental illnesses. In 96 patients with first-episode psychosis, 49 with clinical high risk for psychosis, 104 with OCD, and 159 healthy controls, eye movements were recorded during a 3-min RCFT figure memorization task, and organization and immediate recall scores were obtained. These scores, along with the fixation points indicating eye-focused locations in the figure, were used to train a Long Short-Term Memory + Attention model for detecting impaired executive function and visuospatial memory. The model distinguished between normal and impaired executive function, with an F1 score of 83.5%, and identified visuospatial memory deficits, with an F1 score of 80.7%, regardless of psychiatric diagnosis. These findings suggest that this eye tracking-based deep learning model can directly and rapidly identify impaired executive function during visuospatial memory encoding, with potential applications in various psychiatric and neurological disorders.
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Affiliation(s)
- Minah Kim
- Department of Neuropsychiatry, Seoul National University Hospital, Seoul, Republic of Korea
- Department of Psychiatry, Seoul National University College of Medicine, 101 Daehak-no, Chongno-gu, Seoul, 03080, Republic of Korea
| | - Jungha Lee
- Department of Brain and Cognitive Sciences, Seoul National University College of Natural Sciences, Seoul, Republic of Korea
| | - Soo Yong Lee
- Kim Jaechul Graduate School of Artificial Intelligence, KAIST, Daejeon, Republic of Korea
| | - Minji Ha
- Department of Brain and Cognitive Sciences, Seoul National University College of Natural Sciences, Seoul, Republic of Korea
| | - Inkyung Park
- Department of Brain and Cognitive Sciences, Seoul National University College of Natural Sciences, Seoul, Republic of Korea
| | - Jiseon Jang
- Department of Neuropsychiatry, Seoul National University Hospital, Seoul, Republic of Korea
| | - Moonyoung Jang
- Department of Neuropsychiatry, Seoul National University Hospital, Seoul, Republic of Korea
- Department of Psychiatry, Seoul National University College of Medicine, 101 Daehak-no, Chongno-gu, Seoul, 03080, Republic of Korea
| | - Sunghyun Park
- Department of Neuropsychiatry, Seoul National University Hospital, Seoul, Republic of Korea
| | - Jun Soo Kwon
- Department of Neuropsychiatry, Seoul National University Hospital, Seoul, Republic of Korea.
- Department of Psychiatry, Seoul National University College of Medicine, 101 Daehak-no, Chongno-gu, Seoul, 03080, Republic of Korea.
- Department of Brain and Cognitive Sciences, Seoul National University College of Natural Sciences, Seoul, Republic of Korea.
- Institute of Human Behavioral Medicine, SNU-MRC, Seoul, Republic of Korea.
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Behl T, Kaur I, Sehgal A, Khandige PS, Imran M, Gulati M, Khalid Anwer M, Elossaily GM, Ali N, Wal P, Gasmi A. The link between Alzheimer's disease and stroke: A detrimental synergism. Ageing Res Rev 2024; 99:102388. [PMID: 38914265 DOI: 10.1016/j.arr.2024.102388] [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: 04/02/2024] [Revised: 05/05/2024] [Accepted: 05/06/2024] [Indexed: 06/26/2024]
Abstract
Being age-related disorders, both Alzheimer's disease (AD) and stroke share multiple risk factors, such as hypertension, smoking, diabetes, and apolipoprotein E (APOE) Ɛ4 genotype, and coexist in patients. Accumulation of amyloid-β plaques and neurofibrillary tangled impair cognitive potential, leading to AD. Blocked blood flow in the neuronal tissues, causes neurodegeneration and cell death in stroke. AD is commonly characterized by cerebral amyloid angiopathy, which significantly elevates the risk of hemorrhagic stroke. Patients with AD and stroke have been both reported to exhibit greater cognitive impairment, followed by multiple pathophysiological mechanisms shared between the two. The manuscript aims to elucidate the relationship between AD and stroke, as well as the common pathways and risk factors while understanding the preventive therapies that might limit the negative impacts of this correlation, with diagnostic modalities and current AD treatments. The authors provide a comprehensive review of the link and aid the healthcare professionals to identify suitable targets and risk factors, that may retard cognitive decline and neurodegeneration in patients. However, more intricate research is required in this regard and an interdisciplinary approach that would target both the vascular and neurodegenerative factors would improve the quality of life in AD patients.
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Affiliation(s)
- Tapan Behl
- Amity School of Pharmaceutical Sciences, Amity University, Mohali, Punjab, India.
| | - Ishnoor Kaur
- University of Glasgow, College of Medical, Veterinary and Life Sciences, Glasgow, United Kingdom
| | - Aayush Sehgal
- GHG Khalsa College of Pharmacy, Gurusar Sadhar, Ludhiana, Punjab, India
| | - Prasanna Shama Khandige
- NITTE (Deemed to be University), NGSM Institute of Pharmaceutical Sciences, Department of Pharmacology, Mangaluru, Karnataka, India
| | - Mohd Imran
- Department of Pharmaceutical Chemistry, College of Pharmacy, Northern Border University, Rafha 91911, Saudi Arabia
| | - Monica Gulati
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab 1444411, India; ARCCIM, Faculty of Health, University of Technology Sydney, Ultimo, NSW 20227, Australia
| | - Md Khalid Anwer
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Alkharj, Saudi Arabia
| | - Gehan M Elossaily
- Department of Baisc Medical Sciences, College of Medicine, AlMaarefa University, P.O. Box 71666, Riyadh 11597, Saudi Arabia
| | - Nemat Ali
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Pranay Wal
- PSIT Kanpur, Department of Pharmacy, Uttar Pradesh, India
| | - Amin Gasmi
- Societe Francophone de Nutritherapie et de Nutrigenetique Appliquee, Villeurbanne, France; International Institute of Nutrition and Micronutrition Sciences, Saint Etienne, France
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Kamp SM, Henrich L, Walleitner R, Kroneisen M, Balles J, Dzionsko-Becker I, Hoffmann H, Königs S, Schneiders S, Leisse M, Erdfelder E. The survival processing effect in episodic memory in older adults and stroke patients. Acta Psychol (Amst) 2024; 248:104390. [PMID: 39033696 DOI: 10.1016/j.actpsy.2024.104390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 06/20/2024] [Accepted: 07/08/2024] [Indexed: 07/23/2024] Open
Abstract
In the present study, we tested whether processing information in the context of an ancestral survival scenario enhances episodic memory performance in older adults and in stroke patients. In an online study (Experiment 1), healthy young and older adults rated words according to their relevance to an ancestral survival scenario, and subsequent free recall performance was compared to a pleasantness judgment task and a moving scenario task in a within-subject design. The typical survival processing effect was replicated: Recall rates were highest in the survival task, followed by the moving and the pleasantness judgment task. Although older adults showed overall lower recall rates, there was no evidence for differences between the age groups in the condition effects. Experiment 2 was conducted in a neurological rehabilitation clinic with a sample of patients who had suffered from a stroke within the past 5 months. On the group level, Experiment 2 revealed no significant difference in recall rates between the three conditions. However, when accounting for overall memory abilities and executive function, independently measured in standardized neuropsychological tests, patients showed a significant survival processing effect. Furthermore, only patients with high executive function scores benefitted from the scenario tasks, suggesting that intact executive function may be necessary for a mnemonic benefit. Taken together, our results support the idea that the survival processing task - a well-studied task in the field of experimental psychology - may be incorporated into a strategy to compensate for memory dysfunction.
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Affiliation(s)
| | - Lisa Henrich
- Neurocognitive Psychology Unit, Trier University, Germany
| | | | | | - Julia Balles
- Median Reha-Zentrum Bernkastel-Kues, Klinik Burg Landshut, Germany
| | | | - Heike Hoffmann
- Median Reha-Zentrum Bernkastel-Kues, Klinik Burg Landshut, Germany
| | - Sara Königs
- Median Reha-Zentrum Bernkastel-Kues, Klinik Burg Landshut, Germany
| | | | - Markus Leisse
- Median Reha-Zentrum Bernkastel-Kues, Klinik Burg Landshut, Germany
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Giroud M, Calviere L, Machado C, Reyes S, Mirabel H, Raposo N, Brandicourt P, Viguier A, Albucher JF, Bonneville F, Olivot JM, Péran P, Pariente J, Hervé D, Planton M. Prevalence and characteristics of vascular cognitive impairment in a European cohort of adult patients with Moyamoya angiopathy. J Neurol 2024:10.1007/s00415-024-12555-2. [PMID: 39017702 DOI: 10.1007/s00415-024-12555-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Accepted: 06/30/2024] [Indexed: 07/18/2024]
Abstract
INTRODUCTION Moyamoya angiopathy (MMA) is associated with a high risk of stroke, but it is also increasingly recognized as leading to cognitive impairment. The aim of this study was to determine the prevalence, nature, and severity of vascular cognitive impairment no dementia (VCIND) in adults with MMA and to identify clinical and imaging factors associated with VCIND. METHODS We conducted a retrospective study of consecutive adult patients with MMA followed in two tertiary hospitals (Toulouse and Paris Lariboisiere). All patients underwent neuropsychological assessment and brain magnetic resonance imaging (MRI). VCIND was defined as at least two variables of the same cognitive process with z-scores of < 2 standard deviations, regardless of the cognitive domain, that do not interfere in everyday life. Baseline demographic, clinical, and imaging data were compared between patients with and without VCIND. RESULTS A total of 102 patients (mean age 43 years; 65% women) were included. Thirty-four patients (33.3%) had VCIND. VCIND was mild in 20/34 (59%), moderate in 8/34 (23%), and severe in 6/34 (18%) patients. Executive function was the most widely affected (25.5%), followed by attention and processing speed (24.8%). In univariable analyses, VCIND was associated with ischemic stroke at diagnosis and the presence of ischemic lesions on MRI. CONCLUSIONS VCIND is highly prevalent in adults with MMA. Executive functions and processing speed are predominantly affected. These findings may guide clinicians in their evaluation of patients with MMA. Further research should assess the effect of revascularization therapies on cognitive functions.
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Affiliation(s)
- Marine Giroud
- Neurology Department, Toulouse University Hospital, Toulouse, France.
| | - Lionel Calviere
- Neurology Department, Toulouse University Hospital, Toulouse, France
- Toulouse NeuroImaging Center ToNIC, Toulouse University, Toulouse, France
| | - Carla Machado
- Neurology Department, Hospital Paris Lariboisière, Paris, France
| | - Sonia Reyes
- Neurology Department, Hospital Paris Lariboisière, Paris, France
| | - Hélène Mirabel
- Neurology Department, Toulouse University Hospital, Toulouse, France
| | - Nicolas Raposo
- Neurology Department, Toulouse University Hospital, Toulouse, France
- Toulouse NeuroImaging Center ToNIC, Toulouse University, Toulouse, France
| | | | - Alain Viguier
- Neurology Department, Toulouse University Hospital, Toulouse, France
- Toulouse NeuroImaging Center ToNIC, Toulouse University, Toulouse, France
| | - Jean-François Albucher
- Neurology Department, Toulouse University Hospital, Toulouse, France
- Toulouse NeuroImaging Center ToNIC, Toulouse University, Toulouse, France
| | - Fabrice Bonneville
- Neurology Department, Toulouse University Hospital, Toulouse, France
- Toulouse NeuroImaging Center ToNIC, Toulouse University, Toulouse, France
| | - Jean Marc Olivot
- Neurology Department, Toulouse University Hospital, Toulouse, France
- Toulouse NeuroImaging Center ToNIC, Toulouse University, Toulouse, France
| | - Patrice Péran
- Toulouse NeuroImaging Center ToNIC, Toulouse University, Toulouse, France
| | - Jérémie Pariente
- Neurology Department, Toulouse University Hospital, Toulouse, France
- Toulouse NeuroImaging Center ToNIC, Toulouse University, Toulouse, France
| | - Dominique Hervé
- Neurology Department, Hospital Paris Lariboisière, Paris, France
| | - Mélanie Planton
- Neurology Department, Toulouse University Hospital, Toulouse, France
- Toulouse NeuroImaging Center ToNIC, Toulouse University, Toulouse, France
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Fruhwirth V, Berger L, Gattringer T, Fandler-Höfler S, Kneihsl M, Eppinger S, Ropele S, Fink A, Deutschmann H, Reishofer G, Enzinger C, Pinter D. White matter integrity and functional connectivity of the default mode network in acute stroke are associated with cognitive outcome three months post-stroke. J Neurol Sci 2024; 462:123071. [PMID: 38850772 DOI: 10.1016/j.jns.2024.123071] [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: 03/21/2024] [Revised: 05/27/2024] [Accepted: 05/29/2024] [Indexed: 06/10/2024]
Abstract
BACKGROUND Knowledge about factors that are associated with post-stroke cognitive outcome is important to identify patients with high risk for impairment. We therefore investigated the associations of white matter integrity and functional connectivity (FC) within the brain's default-mode network (DMN) in acute stroke patients with cognitive outcome three months post-stroke. METHODS Patients aged between 18 and 85 years with an acute symptomatic MRI-proven unilateral ischemic middle cerebral artery infarction, who had received reperfusion therapy, were invited to participate in this longitudinal study. All patients underwent brain MRI within 24-72 h after symptom onset, and participated in a neuropsychological assessment three months post-stroke. We performed hierarchical regression analyses to explore the incremental value of baseline white matter integrity and FC beyond demographic, clinical, and macrostructural information for cognitive outcome. RESULTS The study cohort comprised 34 patients (mean age: 64 ± 12 years, 35% female). The initial median National Institutes of Health Stroke Scale (NIHSS) score was 10, and significantly improved three months post-stroke to a median NIHSS = 1 (p < .001). Nonetheless, 50% of patients showed cognitive impairment three months post-stroke. FC of the non-lesioned anterior cingulate cortex of the affected hemisphere explained 15% of incremental variance for processing speed (p = .007), and fractional anisotropy of the non-lesioned cingulum of the affected hemisphere explained 13% of incremental variance for cognitive flexibility (p = .033). CONCLUSIONS White matter integrity and functional MRI markers of the DMN in acute stroke explain incremental variance for post-stroke cognitive outcome beyond demographic, clinical, and macrostructural information.
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Affiliation(s)
- Viktoria Fruhwirth
- Department of Neurology, Medical University of Graz, Graz, Austria; Department of Neurology, Research Unit for Neuronal Plasticity and Repair, Medical University of Graz, Graz, Austria; Institute of Psychology, Department of Biological Psychology, University of Graz, Graz, Austria
| | - Lisa Berger
- Institute of Psychology, Department of Neuropsychology - Neuroimaging, University of Graz, Graz, Austria
| | - Thomas Gattringer
- Department of Neurology, Medical University of Graz, Graz, Austria; Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz, Austria
| | | | - Markus Kneihsl
- Department of Neurology, Medical University of Graz, Graz, Austria
| | | | - Stefan Ropele
- Department of Neurology, Medical University of Graz, Graz, Austria
| | - Andreas Fink
- Institute of Psychology, Department of Biological Psychology, University of Graz, Graz, Austria
| | - Hannes Deutschmann
- Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz, Austria
| | - Gernot Reishofer
- Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz, Austria
| | - Christian Enzinger
- Department of Neurology, Medical University of Graz, Graz, Austria; Department of Neurology, Research Unit for Neuronal Plasticity and Repair, Medical University of Graz, Graz, Austria; Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz, Austria
| | - Daniela Pinter
- Department of Neurology, Medical University of Graz, Graz, Austria; Department of Neurology, Research Unit for Neuronal Plasticity and Repair, Medical University of Graz, Graz, Austria.
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Reumers SFI, Schellekens MMI, Lugtmeijer S, Maas RPPWM, Verhoeven JI, Boot EM, Ekker MS, Tuladhar AM, van de Warrenburg BPC, Schutter DJLG, Kessels RPC, de Leeuw FE. Cognitive impairment in young adults following cerebellar stroke: Prevalence and longitudinal course. Cortex 2024; 178:104-115. [PMID: 38986276 DOI: 10.1016/j.cortex.2024.05.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 05/03/2024] [Accepted: 05/28/2024] [Indexed: 07/12/2024]
Abstract
INTRODUCTION Cognitive impairment is a well-known result of a stroke, but for cerebellar stroke in young patients detailed knowledge on the nature and extent of cognitive deficits is limited. This study examined the prevalence and course of cognitive impairment in a large cohort of patients with cerebellar stroke. METHODS Sixty young (18-49 years) cerebellar stroke patients completed extensive neuropsychological assessments in the subacute (<9 months post-stroke) and/or chronic phase (≥9 months post-stroke). Performance and course were assessed using standardized scores and Reliable Change Index analyses. Associations between cognitive deficits and lesion locations were explored using subtraction analyses, and associations with subjective cognitive complaints and fatigue were examined. RESULTS Sixty patients (52% male) were included with a mean age at event of 43.1 years. Cognitive impairment was observed in 60.3% of patients in the subacute phase and 51.2% during the chronic phase. Deficits were most frequent for visuo-spatial skills and executive functioning (42.5-54.6%). Both improvement and decline were observed over time, in 17.9% and 41.0% of participants, respectively. Cognitive deficits seem to be associated with lesions in certain cerebellar regions, however, no distinct correlation was found for a specific subregion. Subjective cognitive complaints were present in the majority of participants (61-80.5%) and positively correlated with fatigue in both phases (ρ = -.661 and ρ = -.757, p < .001, respectively). DISCUSSION Cognitive impairment in cerebellar stroke patients is common, with deficits most pronounced for visuo-spatial skills and executive functioning, as in line with the Cerebellar Cognitive Affective Syndrome. The course of cognitive performance was heterogenous, with cognitive decline despite the fact that no recurrent strokes occurred. No clear association between lesion location and cognitive deficits was observed. Subjective cognitive complaints and fatigue were prevalent and positively correlated. Clinicians could use this information to actively screen for and better inform patients about possible cognitive sequalae.
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Affiliation(s)
- Stacha F I Reumers
- Radboud University Medical Center, Donders Institute for Brain, Cognition, and Behaviour, Department of Neurology, 6525 GA, Nijmegen, the Netherlands
| | - Mijntje M I Schellekens
- Radboud University Medical Center, Donders Institute for Brain, Cognition, and Behaviour, Department of Neurology, 6525 GA, Nijmegen, the Netherlands
| | - Selma Lugtmeijer
- University of Birmingham, School of Psychology, Birmingham, B15 2TT, UK
| | - Roderick P P W M Maas
- Radboud University Medical Center, Donders Institute for Brain, Cognition, and Behaviour, Department of Neurology, 6525 GA, Nijmegen, the Netherlands
| | - Jamie I Verhoeven
- Radboud University Medical Center, Donders Institute for Brain, Cognition, and Behaviour, Department of Neurology, 6525 GA, Nijmegen, the Netherlands
| | - Esther M Boot
- Radboud University Medical Center, Donders Institute for Brain, Cognition, and Behaviour, Department of Neurology, 6525 GA, Nijmegen, the Netherlands
| | - Merel S Ekker
- Radboud University Medical Center, Donders Institute for Brain, Cognition, and Behaviour, Department of Neurology, 6525 GA, Nijmegen, the Netherlands
| | - Anil M Tuladhar
- Radboud University Medical Center, Donders Institute for Brain, Cognition, and Behaviour, Department of Neurology, 6525 GA, Nijmegen, the Netherlands
| | - Bart P C van de Warrenburg
- Radboud University Medical Center, Donders Institute for Brain, Cognition, and Behaviour, Department of Neurology, 6525 GA, Nijmegen, the Netherlands
| | - Dennis J L G Schutter
- Utrecht University, Department of Experimental Psychology, Helmholtz Institute, 3584 CS, Utrecht, the Netherlands
| | - Roy P C Kessels
- Radboud University, Donders Institute for Brain, Cognition and Behaviour, 6525 GD, Nijmegen, the Netherlands; Radboud University Medical Center, Department of Medical Psychology and Radboudumc Alzheimer Center, 6525 GA, Nijmegen, the Netherlands; Vincent van Gogh Institute for Psychiatry, 5803 AC, Venray, the Netherlands
| | - Frank-Erik de Leeuw
- Radboud University Medical Center, Donders Institute for Brain, Cognition, and Behaviour, Department of Neurology, 6525 GA, Nijmegen, the Netherlands.
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Harris S, Bowren M, Anderson SW, Tranel D. Does brain damage caused by stroke versus trauma have different neuropsychological outcomes? A lesion-matched multiple case study. APPLIED NEUROPSYCHOLOGY. ADULT 2024; 31:428-442. [PMID: 35130098 PMCID: PMC9631467 DOI: 10.1080/23279095.2022.2033242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Traumatic brain injury (TBI) and stroke both have the potential to cause significant damage to the brain, with resultant neuropsychological impairments. How these different mechanisms of injury influence cognitive and behavioral changes associated with brain damage, however, is not well understood. Moreover, previous research directly comparing TBI and stroke has not accounted carefully for lesion location and size. Here, using a detailed lesion-matching approach that was used previously to compare neuropsychological outcomes in stroke versus tumor, we compared the neuropsychological profiles of 14 patients with focal lesions caused by TBI to those of 27 lesion-matched patients with stroke. Each patient with TBI was matched to two patients with stroke, based on lesion location and size (except 1 TBI case where only 1 stroke match was available). Demographic attributes (age, gender, handedness, education) were also matched in the TBI: stroke triplets, as much as possible. The patients with TBI versus stroke had similar performances across all cognitive and behavioral measures, with no significant or clinically meaningful differences. A supplemental analysis on developmental- versus adult-onset TBI cases (with their respective stroke matches) also yielded non-significant results, with TBI and stroke groups being statistically indistinguishable. Our results suggest that focal lesions caused by TBI versus stroke have similar neuropsychological outcomes in the chronic recovery phase, when location and size of lesion are comparable across TBI versus stroke mechanisms of injury.
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Affiliation(s)
- Shana Harris
- Departments of Neurology (Division of Neuropsychology and Cognitive Neuroscience) and Psychological and Brain Sciences, University of Iowa, Iowa City, IA, USA
| | - Mark Bowren
- Departments of Neurology (Division of Neuropsychology and Cognitive Neuroscience) and Psychological and Brain Sciences, University of Iowa, Iowa City, IA, USA
| | - Steven W Anderson
- Departments of Neurology (Division of Neuropsychology and Cognitive Neuroscience) and Psychological and Brain Sciences, University of Iowa, Iowa City, IA, USA
| | - Daniel Tranel
- Departments of Neurology (Division of Neuropsychology and Cognitive Neuroscience) and Psychological and Brain Sciences, University of Iowa, Iowa City, IA, USA
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Nasreldein A, Ahmed M, Shehab M, Abdelhaleem M, Lioutas VA. Clinical Characteristics, Functional Outcome, and Socioeconomic Impact of Ischemic Stroke among Young Egyptian Adults. Neuroepidemiology 2024:1-10. [PMID: 38934173 DOI: 10.1159/000539778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 05/24/2024] [Indexed: 06/28/2024] Open
Abstract
BACKGROUND Stroke in young patients results in disproportionately high societal cost given the productive life-years lost. Little is known about stroke in young Egyptian patients. We aimed to analyze clinicodemographic characteristics, functional outcome, and socioeconomic impact of ischemic stroke among young Egyptian adults. METHODS This is a prospective, observational cohort study of consecutively recruited patients with acute ischemic stroke (AIS), 18-50 years, between September 2022 and September 2023 at a tertiary stroke center in the south of Egypt. We recorded baseline demographic and cardiovascular risk factors, stroke severity, stroke subtype according to the TOAST classification, intravenous thrombolysis, employment, and ambulation status pre- and post-stroke, post-stroke complications, and 90-day functional outcome measured by the modified Rankin Scale (mRS). RESULTS Our cohort comprised 210 patients, 38.0 (±7.8) years, 89 (42%) females. Mean NIHSS score was 11.2 (±4.8); in-hospital case fatality was 9% (19 patients). Dyslipidemia (n = 105, 50%), smoking (n = 105, 50%), and hypertension (n = 67, 32%) were the most prevalent cardiovascular risk factors. At 90 days, 58 (29%) patients had a 90-day mRS 0-1 and 53 (26%) met criteria for depression diagnosis. Sixty-nine of the 116 employed individuals (59%) remained out of work after 90 days of stroke, 61 of whom were single earners in their household. 36/60 (60%) thrombolysis-eligible patients received it; an additional 98 otherwise thrombolysis-eligible patients presented >4.5 h from symptom onset. Patients receiving IV thrombolysis were significantly more likely to have resumed full-time work at 90 days (32% vs. 11%, p = 0.006) but with no significant difference in 90-day mRS. CONCLUSIONS Young adult AIS patients in Egypt experience high rates of post-stroke depression and face challenges in their ability to work and provide for their families. Since most patients have treatable cardiovascular risk factors and only about two-thirds of eligible patients receive thrombolysis, reinforcing primary prevention, education about early stroke signs, and benefits of acute can improve outcomes and have significant potential societal benefit.
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Affiliation(s)
| | - Mohamed Ahmed
- Department of Neurology, Assiut University, Assiut, Egypt
| | - Mohamed Shehab
- Department of Neurology, Assiut University, Assiut, Egypt
| | | | - Vasileios-Arsenios Lioutas
- Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA,
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Shi Y, Fang Q, Hu Y, Mi Z, Luo S, Gan Y, Yuan S. Melatonin Ameliorates Post-Stroke Cognitive Impairment in Mice by Inhibiting Excessive Mitophagy. Cells 2024; 13:872. [PMID: 38786094 PMCID: PMC11119717 DOI: 10.3390/cells13100872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2024] [Revised: 05/09/2024] [Accepted: 05/14/2024] [Indexed: 05/25/2024] Open
Abstract
Post-stroke cognitive impairment (PSCI) remains the most common consequence of ischemic stroke. In this study, we aimed to investigate the role and mechanisms of melatonin (MT) in improving cognitive dysfunction in stroke mice. We used CoCl2-induced hypoxia-injured SH-SY5Y cells as a cellular model of stroke and photothrombotic-induced ischemic stroke mice as an animal model. We found that the stroke-induced upregulation of mitophagy, apoptosis, and neuronal synaptic plasticity was impaired both in vivo and in vitro. The results of the novel object recognition test and Y-maze showed significant cognitive deficits in the stroke mice, and Nissl staining showed a loss of neurons in the stroke mice. In contrast, MT inhibited excessive mitophagy both in vivo and in vitro and decreased the levels of mitophagy proteins PINK1 and Parkin, and immunofluorescence staining showed reduced co-localization of Tom20 and LC3. A significant inhibition of mitophagy levels could be directly observed under transmission electron microscopy. Furthermore, behavioral experiments and Nissl staining showed that MT ameliorated cognitive deficits and reduced neuronal loss in mice following a stroke. Our results demonstrated that MT inhibits excessive mitophagy and improves PSCI. These findings highlight the potential of MT as a preventive drug for PSCI, offering promising therapeutic implications.
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Affiliation(s)
- Yan Shi
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University, Changsha 410006, China; (Y.S.); (S.L.)
- Department of Medical Laboratory, School of Medicine, Hunan Normal University, Changsha 410006, China; (Q.F.); (Y.H.); (Z.M.); (Y.G.)
- Engineering Research Center of Reproduction and Translational Medicine of Hunan Province, School of Medicine, Hunan Normal University, Changsha 410013, China
| | - Qian Fang
- Department of Medical Laboratory, School of Medicine, Hunan Normal University, Changsha 410006, China; (Q.F.); (Y.H.); (Z.M.); (Y.G.)
| | - Yue Hu
- Department of Medical Laboratory, School of Medicine, Hunan Normal University, Changsha 410006, China; (Q.F.); (Y.H.); (Z.M.); (Y.G.)
| | - Zhaoyu Mi
- Department of Medical Laboratory, School of Medicine, Hunan Normal University, Changsha 410006, China; (Q.F.); (Y.H.); (Z.M.); (Y.G.)
| | - Shuting Luo
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University, Changsha 410006, China; (Y.S.); (S.L.)
| | - Yaoxue Gan
- Department of Medical Laboratory, School of Medicine, Hunan Normal University, Changsha 410006, China; (Q.F.); (Y.H.); (Z.M.); (Y.G.)
| | - Shishan Yuan
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University, Changsha 410006, China; (Y.S.); (S.L.)
- Department of Medical Laboratory, School of Medicine, Hunan Normal University, Changsha 410006, China; (Q.F.); (Y.H.); (Z.M.); (Y.G.)
- Engineering Research Center of Reproduction and Translational Medicine of Hunan Province, School of Medicine, Hunan Normal University, Changsha 410013, China
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10
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Schellekens MMI, Springer RCS, Boot EM, Verhoeven JI, Ekker MS, van Alebeek ME, Brouwers PJAM, Arntz RM, van Dijk GW, Gons RAR, van Uden IWM, den Heijer T, van Tuijl JH, de Laat KF, van Norden AGW, Vermeer SE, van Zagten MSG, Van Oostenbrugge RJ, Wermer MJH, Nederkoorn PJ, van Rooij FG, van den Wijngaard IR, de Kort PLM, De Leeuw FE, Kessels RPC, Tuladhar AM. Cognitive trajectory in the first year after first-ever ischaemic stroke in young adults: the ODYSSEY study. J Neurol Neurosurg Psychiatry 2024; 95:571-579. [PMID: 38160045 PMCID: PMC11103341 DOI: 10.1136/jnnp-2023-332104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 12/07/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND Limited data exists on cognitive recovery in young stroke patients. We aimed to investigate the longitudinal course of cognitive performance during the first year after stroke at young age and identify predictors for cognitive recovery. METHODS We conducted a multicentre prospective cohort study between 2013 and 2021, enrolling patients aged 18-49 years with first-ever ischaemic stroke. Cognitive assessments were performed within 6 months and after 1 year following the index event, covering seven cognitive domains. Composite Z-scores using normative data determined cognitive impairment (Z-score<-1.5). A Reliable Change Index (RCI) assessed cognitive recovery (RCI>1.96) or decline (RCI<-1.96). RESULTS 393 patients (median age 44.3 years, IQR 38.4-47.2) completed cognitive assessments with a median time interval of 403 days (IQR 364-474) between assessments. Based on RCI, a similar proportion of patients showed improvement and decline in each cognitive domain, while the majority exhibited no cognitive change. Among cognitively impaired patients at baseline, improvements were observed in processing speed (23.1%), visuoconstruction (40.1%) and executive functioning (20.0%). Younger age was associated with better cognitive recovery in visuoconstruction, and larger lesion volume was related to cognitive recovery in processing speed. No other predictors for cognitive recovery were identified. CONCLUSIONS Cognitive impairment remains prevalent in young stroke even 1 year after the event. Most patients showed no cognitive change, however, recovery may have occurred in the early weeks after stroke, which was not assessed in our study. Among initially cognitively impaired patients, cognitive recovery is observed in processing speed, visuoconstruction and executive functioning. It is still not possible to predict cognitive recovery in individual patients.
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Affiliation(s)
- Mijntje M I Schellekens
- Neurology, Radboudumc, Nijmegen, The Netherlands
- Radboud University Donders Institute for Brain Cognition and Behaviour, Nijmegen, The Netherlands
| | | | - Esther M Boot
- Neurology, Radboudumc, Nijmegen, The Netherlands
- Radboud University Donders Institute for Brain Cognition and Behaviour, Nijmegen, The Netherlands
| | - Jamie I Verhoeven
- Neurology, Radboudumc, Nijmegen, The Netherlands
- Radboud University Donders Institute for Brain Cognition and Behaviour, Nijmegen, The Netherlands
| | - Merel S Ekker
- Neurology, Radboudumc, Nijmegen, The Netherlands
- Radboud University Donders Institute for Brain Cognition and Behaviour, Nijmegen, The Netherlands
| | | | | | - Renate M Arntz
- Neurology, Medisch Spectrum Twente, Enschede, The Netherlands
| | - Gert W van Dijk
- Neurology, Canisius-Wilhelmina Hospital, Nijmegen, The Netherlands
| | - Rob A R Gons
- Neurology, Catharina Hospital, Eindhoven, The Netherlands
| | | | - Tom den Heijer
- Neurology, Franciscus Gasthuis & Vlietland, Rotterdam, The Netherlands
| | | | | | | | | | | | - Robert J Van Oostenbrugge
- Neurology, Maastricht University Medical Centre, Maastricht, The Netherlands
- University Maastricht School for Mental Health and Neuroscience, Maastricht, The Netherlands
| | - Marieke J H Wermer
- Neurology, Leiden University Medical Centre, Leiden, The Netherlands
- Neurology, University Medical Centre Groningen, Groningen, The Netherlands
| | - Paul J Nederkoorn
- Neurology, Amsterdam University Medical Centre, location AMC, Amsterdam, The Netherlands
| | | | | | - Paul L M de Kort
- Neurology, Elisabeth-TweeSteden Hospital, Tilburg, The Netherlands
| | - Frank-Erik De Leeuw
- Neurology, Radboudumc, Nijmegen, The Netherlands
- Radboud University Donders Institute for Brain Cognition and Behaviour, Nijmegen, The Netherlands
| | - Roy P C Kessels
- Radboud University Donders Institute for Brain Cognition and Behaviour, Nijmegen, The Netherlands
- Vincent Van Gogh Instituut for Psychiatry, Venray, The Netherlands
- Department of Medical Psychology and Radboudumc Alzheimer Center, Radboudumc, Nijmegen, The Netherlands
| | - Anil M Tuladhar
- Neurology, Radboudumc, Nijmegen, The Netherlands
- Radboud University Donders Institute for Brain Cognition and Behaviour, Nijmegen, The Netherlands
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11
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Lim MJR, Tan J, Neo AYY, Ng BCJ, Asano M. Acceptance of disability in stroke: a systematic review. Ann Phys Rehabil Med 2024; 67:101790. [PMID: 38118296 DOI: 10.1016/j.rehab.2023.101790] [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: 09/14/2022] [Revised: 06/27/2023] [Accepted: 08/15/2023] [Indexed: 12/22/2023]
Abstract
BACKGROUND Evidence for the association between acceptance of disability (AOD) and positive rehabilitation outcomes, as well as for the use of AOD measurements in stroke rehabilitation practice, has increased in the international literature in the last decade. However, measurement tools for AOD are heterogenous and there has not been a systematic review summarizing the current evidence on the use of AOD measures and factors associated with AOD. OBJECTIVE This study aimed to summarize current evidence on measurement tools used, present existing AOD scores in people with stroke and identify risk factors for and protective factors against poor AOD in people with stroke. METHODS The original design and protocol of this systematic review were registered with PROSPERO. The included studies were published from 2008 to 2020 and identified from 5 databases-PubMed, EMBASE, CINAHL Plus, PsycInfo, and the Cochrane Library-using the following inclusion criteria: participants diagnosed with stroke and aged ≥16 years, measurement of AOD, and published in English in a peer-reviewed scientific journal. Review articles were excluded. RESULTS Five measurement tools for AOD were reported. The Revised Acceptance of Disability Scale (ADS-R) and the acceptance subscale of the Illness Cognition Questionnaire (ICQ) had the highest internal consistency. Scores ranged from 71.7 to 74.2 on the ADS-R, 16.9-18.3 on the ICQ, 16.5-26.9 on the Acceptance of Illness Scale, and 87.8-93.2 on the Attitudes towards Disabled Persons Form A. Poorer function and depressive symptoms were associated with poor AOD, whereas religious beliefs, support from others, and an understanding of stroke were associated with better AOD. CONCLUSIONS The ADS-R and the acceptance subscale of the ICQ are currently the most reliable measurement tools for measuring AOD in people with stroke. Further research to validate the measurement tools is required. This may help to identify people who require additional support. TRIAL REGISTRATION PROSPERO International Prospective Register of Systematic Reviews CRD42017077063; https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=77063.
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Affiliation(s)
- Mervyn Jun Rui Lim
- Division of Neurosurgery, University Surgical Centre, National University Health System, 1E Kent Ridge Rd, Singapore 119228 Singapore; Ministry of Health Holdings, Singapore, 1 Maritime Square 099253, Singapore.
| | - Jaclyn Tan
- Division of Neurosurgery, University Surgical Centre, National University Health System, 1E Kent Ridge Rd, Singapore 119228 Singapore
| | | | | | - Miho Asano
- Saw Swee Hock School of Public Health, National University of Singapore, 12 Science Drive 2 #10-01, Singapore 117549, Singapore
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12
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Joundi RA, O'Connell ME, Patten S, Smith EE. Mediation of Post-Stroke Function by Cognition in the Canadian Longitudinal Study on Aging. Can J Neurol Sci 2024; 51:64-72. [PMID: 36627236 DOI: 10.1017/cjn.2023.6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
INTRODUCTION Cognitive and functional impairment after stroke are common, but the relation between cognitive and functional decline after stroke is not well studied. METHODS We used the comprehensive cohort in the Canadian Longitudinal Study on Aging to identify those with prior stroke, and we calculated reliable cognitive change scores from baseline to follow-up for the memory and executive domains. Functional decline was defined as an increase in the number of dependent daily activities. Using formal mediation analysis, we tested the presence and degree of mediation of the association between stroke and functional decline by cognitive decline. RESULTS There were 22,648 individuals with memory change scores (325 with stroke) and 17,613 individuals with executive change scores (241 with stroke). History of stroke was significantly associated with memory decline (-0.26 standard deviations, 95% CI -0.33 to -0.19), executive decline (-0.22, 95% CI -0.36 to -0.09), and new functional impairment (adjusted odds ratio 2.31, 95% CI 1.80-2.97) over a median of 3-year follow-up. Cognitive decline was a significant mediator of functional decline. Memory decline mediated only 5% of the relationship, whereas executive and overall cognitive decline mediated 13% and 22%, respectively. CONCLUSION Cognitive decline is a mediator of the association between prior stroke and functional decline; consequently, strategies to delay, attenuate, or prevent cognitive decline after stroke may be important to preserving long-term functional status.
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Affiliation(s)
- Raed A Joundi
- Division of Neurology, Hamilton Health Sciences, McMaster University & Population Health Research Institute, Hamilton, Ontario, Canada
| | - Megan E O'Connell
- Department of Psychology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Scott Patten
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Eric E Smith
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
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13
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Goodman GW, Do TH, Tan C, Ritzel RM. Drivers of Chronic Pathology Following Ischemic Stroke: A Descriptive Review. Cell Mol Neurobiol 2023; 44:7. [PMID: 38112809 DOI: 10.1007/s10571-023-01437-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 11/25/2023] [Indexed: 12/21/2023]
Abstract
Stroke is the third leading cause of death and long-term disability in the world. Considered largely a disease of aging, its global economic and healthcare burden is expected to rise as more people survive into advanced age. With recent advances in acute stroke management, including the expansion of time windows for treatment with intravenous thrombolysis and mechanical thrombectomy, we are likely to see an increase in survival rates. It is therefore critically important to understand the complete pathophysiology of ischemic stroke, both in the acute and subacute stages and during the chronic phase in the months and years following an ischemic event. One of the most clinically relevant aspects of the chronic sequelae of stroke is its extended negative effect on cognition. Cognitive impairment may be related to the deterioration and dysfunctional reorganization of white matter seen at later timepoints after stroke, as well as ongoing progressive neurodegeneration. The vasculature of the brain also undergoes significant insult and remodeling following stroke, undergoing changes which may further contribute to chronic stroke pathology. While inflammation and the immune response are well established drivers of acute stroke pathology, the chronicity and functional role of innate and adaptive immune responses in the post-ischemic brain and in the peripheral environment remain largely uncharacterized. In this review, we summarize the current literature on post-stroke injury progression, its chronic pathological features, and the putative secondary injury mechanisms underlying the development of cognitive impairment and dementia. We present findings from clinical and experimental studies and discuss the long-term effects of ischemic stroke on both brain anatomy and functional outcome. Identifying mechanisms that occur months to years after injury could lead to treatment strategies in the chronic phase of stroke to help mitigate stroke-associated cognitive decline in patients.
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Affiliation(s)
- Grant W Goodman
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Trang H Do
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Chunfeng Tan
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Rodney M Ritzel
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA.
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14
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Kusec A, Milosevich E, Williams OA, Chiu EG, Watson P, Carrick C, Drozdowska BA, Dillon A, Jennings T, Anderson B, Dawes H, Thomas S, Kuppuswamy A, Pendlebury ST, Quinn TJ, Demeyere N. Long-term psychological outcomes following stroke: the OX-CHRONIC study. BMC Neurol 2023; 23:426. [PMID: 38036966 PMCID: PMC10688008 DOI: 10.1186/s12883-023-03463-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 11/10/2023] [Indexed: 12/02/2023] Open
Abstract
BACKGROUND Stroke survivors rate longer-term (> 2 years) psychological recovery as their top priority, but data on how frequently psychological consequences occur is lacking. Prevalence of cognitive impairment, depression/anxiety, fatigue, apathy and related psychological outcomes, and whether rates are stable in long-term stroke, is unknown. METHODS N = 105 long-term stroke survivors (M [SD] age = 72.92 [13.01]; M [SD] acute NIH Stroke Severity Score = 7.39 [6.25]; 59.0% Male; M [SD] years post-stroke = 4.57 [2.12]) were recruited (potential N = 208). Participants completed 3 remote assessments, including a comprehensive set of standardized cognitive neuropsychological tests comprising domains of memory, attention, language, and executive function, and questionnaires on emotional distress, fatigue, apathy and other psychological outcomes. Ninety participants were re-assessed one year later. Stability of outcomes was assessed by Cohen's d effect size estimates and percent Minimal Clinically Important Difference changes between time points. RESULTS On the Montreal Cognitive Assessment 65.3% scored < 26. On the Oxford Cognitive Screen 45.9% had at least one cognitive impairment. Attention (27.1%) and executive function (40%) were most frequently impaired. 23.5% and 22.5% had elevated depression/anxiety respectively. Fatigue (51.4%) and apathy (40.5%) rates remained high, comparable to estimates in the first-year post-stroke. Attention (d = -0.12; 85.8% stable) and depression (d = 0.09, 77.1% stable) were the most stable outcomes. Following alpha-adjustments, only perceptuomotor abilities (d = 0.69; 40.4% decline) and fatigue (d = -0.33; 45.3% decline) worsened over one year. Cognitive impairment, depression/anxiety, fatigue and apathy all correlated with worse quality of life. CONCLUSION Nearly half of participants > 2 years post-event exhibited psychological difficulties including domains of cognition, mood, and fatigue, which impact long-term quality of life. Stroke is a chronic condition with highly prevalent psychological needs, which require monitoring and intervention development.
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Affiliation(s)
- Andrea Kusec
- Department of Experimental Psychology, University of Oxford, Anna Watts Building, Radcliffe Observatory Quarter, Oxford, UK
| | - Elise Milosevich
- Department of Experimental Psychology, University of Oxford, Anna Watts Building, Radcliffe Observatory Quarter, Oxford, UK
| | - Owen A Williams
- Department of Experimental Psychology, University of Oxford, Anna Watts Building, Radcliffe Observatory Quarter, Oxford, UK
| | - Evangeline G Chiu
- Department of Experimental Psychology, University of Oxford, Anna Watts Building, Radcliffe Observatory Quarter, Oxford, UK
| | - Pippa Watson
- Department of Experimental Psychology, University of Oxford, Anna Watts Building, Radcliffe Observatory Quarter, Oxford, UK
| | - Chloe Carrick
- Department of Experimental Psychology, University of Oxford, Anna Watts Building, Radcliffe Observatory Quarter, Oxford, UK
| | - Bogna A Drozdowska
- School of Cardiovascular & Metabolic Health, University of Glasgow, Glasgow, UK
| | - Avril Dillon
- Department of Health and Life Sciences, Oxford Brookes University, Oxford, UK
| | | | - Bloo Anderson
- Patient and Public Involvement Representative, Oxford, UK
| | - Helen Dawes
- NIHR Exeter Biomedical Research Centre, University of Exeter, Medical School Building, St Luke's Campus, Magdalen Road, Exeter, UK
| | - Shirley Thomas
- School of Medicine, Queen's Medical Centre, University of Nottingham, Nottingham, UK
| | - Annapoorna Kuppuswamy
- Institute of Neurology Department of Clinical and Movement Neurosciences, University College London, 33 Queen Square, London, UK
- Department of Biomedical Sciences, University of Leeds, Leeds, UK
| | - Sarah T Pendlebury
- Wolfson Centre for Prevention of Stroke and Dementia, Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - Terence J Quinn
- School of Cardiovascular & Metabolic Health, University of Glasgow, Glasgow, UK
| | - Nele Demeyere
- Department of Experimental Psychology, University of Oxford, Anna Watts Building, Radcliffe Observatory Quarter, Oxford, UK.
- Wolfson Centre for Prevention of Stroke and Dementia, Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital, Oxford, UK.
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15
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Basak JM, Falk M, Mitchell DN, Coakley KA, Quillinan N, Orfila JE, Herson PS. Targeting BACE1-mediated production of amyloid beta improves hippocampal synaptic function in an experimental model of ischemic stroke. J Cereb Blood Flow Metab 2023; 43:66-77. [PMID: 37150606 PMCID: PMC10638992 DOI: 10.1177/0271678x231159597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 12/30/2022] [Accepted: 01/31/2023] [Indexed: 02/24/2023]
Abstract
Post-stroke cognitive impairment and dementia (PSCID) affects many survivors of large vessel cerebral ischemia. The molecular pathways underlying PSCID are poorly defined but may overlap with neurodegenerative pathophysiology. Specifically, synaptic dysfunction after stroke may be directly mediated by alterations in the levels of amyloid beta (Aβ), the peptide that accumulates in the brains of Alzheimer's disease (AD) patients. In this study, we use the transient middle cerebral artery occlusion (MCAo) model in young adult mice to evaluate if a large vessel stroke increases brain soluble Aβ levels. We show that soluble Aβ40 and Aβ42 levels are increased in the ipsilateral hippocampus in MCAo mice 7 days after the injury. We also analyze the level and activity of β-site amyloid precursor protein cleaving enzyme 1 (BACE1), an enzyme that generates Aβ in the brain, and observe that BACE1 activity is increased in the ipsilateral hippocampus of the MCAo mice. Finally, we highlight that treatment of MCAo mice with a BACE1 inhibitor during the recovery period rescues stroke-induced deficits in hippocampal synaptic plasticity. These findings support a molecular pathway linking ischemia to alterations in BACE1-mediated production of Aβ, and encourage future studies that evaluate whether targeting BACE1 activity improves the cognitive deficits seen with PSCID.
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Affiliation(s)
- Jacob M Basak
- Department of Anesthesiology, University of Colorado Anschutz School of Medicine, Aurora, Colorado, USA
- Neuronal Injury and Plasticity Program, University of Colorado Anschutz School of Medicine, Aurora, Colorado, USA
| | - Macy Falk
- Department of Anesthesiology, University of Colorado Anschutz School of Medicine, Aurora, Colorado, USA
- Neuronal Injury and Plasticity Program, University of Colorado Anschutz School of Medicine, Aurora, Colorado, USA
| | - Danae N Mitchell
- Department of Anesthesiology, University of Colorado Anschutz School of Medicine, Aurora, Colorado, USA
- Neuronal Injury and Plasticity Program, University of Colorado Anschutz School of Medicine, Aurora, Colorado, USA
| | - Kelley A Coakley
- Department of Neurosurgery, The Ohio State University College of Medicine, Columbus, Ohio, USA
| | - Nidia Quillinan
- Department of Anesthesiology, University of Colorado Anschutz School of Medicine, Aurora, Colorado, USA
- Neuronal Injury and Plasticity Program, University of Colorado Anschutz School of Medicine, Aurora, Colorado, USA
| | - James E Orfila
- Department of Neurosurgery, The Ohio State University College of Medicine, Columbus, Ohio, USA
| | - Paco S Herson
- Department of Neurosurgery, The Ohio State University College of Medicine, Columbus, Ohio, USA
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16
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Weterings RPC, Kessels RPC, de Leeuw FE, Piai V. Cognitive impairment after a stroke in young adults: A systematic review and meta-analysis. Int J Stroke 2023; 18:888-897. [PMID: 36765436 PMCID: PMC10507997 DOI: 10.1177/17474930231159267] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 01/29/2023] [Indexed: 02/12/2023]
Abstract
BACKGROUND Information about cognitive functioning is vital in the management of stroke, but the literature is mostly based on data from individuals older than 50 years of age who make up the majority of the stroke population. As cognitive functioning is subject to change due to aging, it is unclear whether such cognitive impairment patterns from the general stroke literature apply to the growing population of younger people with a stroke. AIM The aim of the study was to conduct a systematic review and meta-analysis of the proportion and severity of cognitive impairment in young-stroke patients. SUMMARY OF REVIEW MEDLINE, Embase, PsycINFO, and Web of Science were systematically searched up to 11 October 2022. Studies were included if they reported on a population of young-stroke patients, evaluated cognitive functioning as an outcome measure, and reported original data. We estimated the pooled prevalence rates for cognitive impairment and for aphasia. In addition, we calculated the pooled estimates for the severity of impairment per cognitive domain in the chronic phase (defined as >6 months post-stroke). Six hundred thirty-five articles were identified, of which 29 were eligible for inclusion. The pooled prevalence of cognitive impairment was 44% (k = 10; 95% confidence interval (CI): 34-54%) and of aphasia 22% (k = 13; 95% CI: 12-39%). Young-stroke patients in the chronic phase performed worse than stroke-free healthy age-appropriate controls across all cognitive domains examined, with Hedges' g effect sizes ranging from -0.49 to -1.64. CONCLUSION Around half of all young-stroke patients present with cognitive impairment and around a quarter with aphasia. Our data suggest that patterns of impairment in young-stroke patients follow those in the general stroke literature.
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Affiliation(s)
- Rosemarije PC Weterings
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, The Netherlands
- Department of Neurology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Roy PC Kessels
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, The Netherlands
- Department of Medical Psychology, Radboud University Medical Center and Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands
- Vincent van Gogh Institute for Psychiatry, Venray, The Netherlands
| | - Frank-Erik de Leeuw
- Department of Neurology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Vitória Piai
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, The Netherlands
- Department of Medical Psychology, Radboud University Medical Center and Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands
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17
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Bukhari S, Yaghi S, Bashir Z. Stroke in Young Adults. J Clin Med 2023; 12:4999. [PMID: 37568401 PMCID: PMC10420127 DOI: 10.3390/jcm12154999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 07/25/2023] [Accepted: 07/26/2023] [Indexed: 08/13/2023] Open
Abstract
Stroke in young adults is associated with significant morbidity, and its prevalence is rising in the United States. This is partly attributed to a rise in the prevalence of traditional risk factors including hypertension, hypercholesterolemia, obesity, diabetes mellitus, smoking and heart disease. In addition, there are non-modifiable risk factors comprising migraine, pregnancy and postpartum state, illicit drug use, oral contraceptives and hypercoagulable state. The mechanisms causing stroke in young adults are unique and include cervical dissection, cardioembolic phenomenon, vasculitis and vasculopathy, connective tissue disease, patent foramen ovale and cerebral venous thrombosis. The diagnosis of stroke in the young population can be challenging given its myriad clinical presentations. In this document, we provide an overview of the epidemiology of stroke in young adults, explore mechanisms that may explain increasing rates of stroke in this population, and provide a critical updated overview of the existing literature on the management and prevention of stroke in young adults.
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Affiliation(s)
- Syed Bukhari
- Temple University Hospital, Philadelphia, PA 19140, USA
| | - Shadi Yaghi
- Department of Medicine, Brown University, Providence, RI 02912, USA; (S.Y.); (Z.B.)
| | - Zubair Bashir
- Department of Medicine, Brown University, Providence, RI 02912, USA; (S.Y.); (Z.B.)
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18
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Jiang X, Lewis CE, Allen NB, Sidney S, Yaffe K. Premature Cardiovascular Disease and Brain Health in Midlife: The CARDIA Study. Neurology 2023; 100:e1454-e1463. [PMID: 36697246 PMCID: PMC10104620 DOI: 10.1212/wnl.0000000000206825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 12/02/2022] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND AND OBJECTIVES To understand the role of premature (defined as ≤ 60 years) cardiovascular disease (CVD) in brain health earlier in life, we examined the associations of premature CVD with midlife cognition and white matter health. METHODS We studied a prospective cohort in the Coronary Artery Risk Development in Young Adults study, who were 18-30 years at baseline (1985-1986) and followed up to 30 years when 5 cognitive tests measuring different domains were administered. A subset (656 participants) had brain MRI measures of white matter hyperintensity (WMH) and white matter integrity. A premature CVD event was adjudicated based on medical records of coronary heart disease, stroke/TIA, congestive heart failure, carotid artery disease, and peripheral artery disease. We conducted linear regression to determine the associations of nonfatal premature CVD with cognitive performance (z-standardized), cognitive decline, and MRI measures. RESULTS Among 3,146 participants, the mean age (57% women and 48% Black) was 55.1 ± 3.6 years, with 5% (n = 147) having premature CVD. Adjusting for demographics, education, literacy, income, depressive symptoms, physical activity, diet, and APOE, premature CVD was associated with lower cognition in 4 of 5 domains: global cognition (-0.22, 95% CI -0.37 to -0.08), verbal memory (-0.28, 95% CI -0.44 to -0.12), processing speed (-0.46, 95% CI -0.62 to -0.31), and executive function (-0.38, 95% CI -0.55 to -0.22). Premature CVD was associated with greater WMH (total, temporal, and parietal lobes) and higher white matter mean diffusivity (total and temporal lobes) after adjustment for covariates. These associations remained significant after adjusting for cardiovascular risk factors (CVRFs) and excluding those with stroke/TIA. Premature CVD was also associated with accelerated cognitive decline over 5 years (adjusted OR 3.07, 95% CI 1.65-5.71). DISCUSSION Premature CVD is associated with worse midlife cognition and white matter health, which is not entirely driven by stroke/TIA and even independent of CVRFs. Preventing CVD in early adulthood may delay the onset of cognitive decline and promote brain health over the life course.
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Affiliation(s)
- Xiaqing Jiang
- From the Department of Psychiatry and Behavioral Sciences (X.J., K.Y.), University of California San Francisco; Department of Epidemiology (C.E.L.), School of Public Health, University of Alabama at Birmingham; Department of Preventive Medicine (N.B.A.), Northwestern University Feinberg School of Medicine, Chicago, IL; Kaiser Permanente Division of Research (S.S.), Oakland, CA; Department of Epidemiology and Biostatistics (K.Y.), University of California San Francisco; Department of Neurology (K.Y.), University of California; and San Francisco VA Health Care System (K.Y.)
| | - Cora E Lewis
- From the Department of Psychiatry and Behavioral Sciences (X.J., K.Y.), University of California San Francisco; Department of Epidemiology (C.E.L.), School of Public Health, University of Alabama at Birmingham; Department of Preventive Medicine (N.B.A.), Northwestern University Feinberg School of Medicine, Chicago, IL; Kaiser Permanente Division of Research (S.S.), Oakland, CA; Department of Epidemiology and Biostatistics (K.Y.), University of California San Francisco; Department of Neurology (K.Y.), University of California; and San Francisco VA Health Care System (K.Y.)
| | - Norrina B Allen
- From the Department of Psychiatry and Behavioral Sciences (X.J., K.Y.), University of California San Francisco; Department of Epidemiology (C.E.L.), School of Public Health, University of Alabama at Birmingham; Department of Preventive Medicine (N.B.A.), Northwestern University Feinberg School of Medicine, Chicago, IL; Kaiser Permanente Division of Research (S.S.), Oakland, CA; Department of Epidemiology and Biostatistics (K.Y.), University of California San Francisco; Department of Neurology (K.Y.), University of California; and San Francisco VA Health Care System (K.Y.)
| | - Stephen Sidney
- From the Department of Psychiatry and Behavioral Sciences (X.J., K.Y.), University of California San Francisco; Department of Epidemiology (C.E.L.), School of Public Health, University of Alabama at Birmingham; Department of Preventive Medicine (N.B.A.), Northwestern University Feinberg School of Medicine, Chicago, IL; Kaiser Permanente Division of Research (S.S.), Oakland, CA; Department of Epidemiology and Biostatistics (K.Y.), University of California San Francisco; Department of Neurology (K.Y.), University of California; and San Francisco VA Health Care System (K.Y.)
| | - Kristine Yaffe
- From the Department of Psychiatry and Behavioral Sciences (X.J., K.Y.), University of California San Francisco; Department of Epidemiology (C.E.L.), School of Public Health, University of Alabama at Birmingham; Department of Preventive Medicine (N.B.A.), Northwestern University Feinberg School of Medicine, Chicago, IL; Kaiser Permanente Division of Research (S.S.), Oakland, CA; Department of Epidemiology and Biostatistics (K.Y.), University of California San Francisco; Department of Neurology (K.Y.), University of California; and San Francisco VA Health Care System (K.Y.).
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19
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Plancher G, Naëgelé B, Guinet V, Portrat S, Colliot P. Stroke damages attentional maintenance in working memory. J Neuropsychol 2023; 17:81-88. [PMID: 35941079 DOI: 10.1111/jnp.12287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 07/13/2022] [Indexed: 11/30/2022]
Abstract
Stroke is the main cause of acquired disability in adults, and specific deficits in working memory (WM) are among the most common cognitive consequences. In neuropsychological routine, WM is most of the time investigated in the framework of the multicomponent model (Baddeley & Hitch, 1974, The psychology of learning and motivation, 47). Using a more recent theoretical WM model, the time-based resource-sharing (TBRS) model (Barrouillet et al., 2011, Psychol. Rev., 118, 175), the aim of the present study was to investigate in young post-stroke patients to which extent attentional maintenance is impaired in WM. To address this question, we discarded other factors known to directly influence WM performance, that is processing speed and short-term memory span. We proposed to 53 post-stroke patients and to 63 healthy controls a complex span paradigm in which participants were asked to alternate between the memorization of a series of images and a concurrent parity judgement task of a series of digits. To investigate the attentional maintenance processes, we manipulated the cognitive load (CL) of the concurrent task. CL effect is typically interpreted as the involvement of attentional maintenance processes. The task was adapted to each participant according to their processing speed and memory span. As expected, the results showed higher recall performance in healthy controls compared with post-stroke patients. Consistent with the literature, we also observed higher performance when the CL was low compared with high. However, the improvement in recall at low CL was smaller for post-stroke patients compared with controls, suggesting that post-stroke WM deficit could be in part due to a deficit of the attentional maintenance processes.
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Affiliation(s)
- Gaën Plancher
- Laboratoire d'Étude des Mécanismes Cognitifs, Université Lumière Lyon 2, Paris, France.,Institut Universitaire de France (IUF), Paris, France
| | | | - Victoria Guinet
- Department of Functional Neurology and Epileptology, Hospices Civils de Lyon, Bron, France
| | - Sophie Portrat
- Université Savoie Mont-Blanc, Université Grenoble Alpes, CNRS, LPNC, Grenoble, France
| | - Pascale Colliot
- Laboratoire d'Étude des Mécanismes Cognitifs, Université Lumière Lyon 2, Paris, France
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20
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Gurková E, Štureková L, Mandysová P, Šaňák D. Factors affecting the quality of life after ischemic stroke in young adults: a scoping review. Health Qual Life Outcomes 2023; 21:4. [PMID: 36653785 PMCID: PMC9850784 DOI: 10.1186/s12955-023-02090-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 01/11/2023] [Indexed: 01/20/2023] Open
Abstract
PURPOSE To synthesize the body of knowledge on the factors influencing the quality of life (QoL) after ischemic stroke (IS) in young adults. METHODS Guidelines regarding the scoping review methodology developed by the Joanna Briggs Institute, and the PRISMA-ScR checklist for a scoping review was used in this paper. A total of 1197 studies were identified through a bibliographic search in Web of Science, MEDLINE, PsycInfo, ScienceDirect, Scopus, and ProQuest Science Database. Articles published between the years 2000-2021 were included. RESULTS A total of nine papers were finally selected to respond to the research question. Three studies were prospective longitudinal studies compared QoL between young stroke and age-matched controls from the general population. Across all the analysed studies, 14 variables potentially associated with QoL were identified. QoL in young patients is mainly affected by clinical outcomes after IS (scored by the modified Rankin scale and the Barthel index-favourable initial functional status and higher independence in ADL leads to higher QoL) and psychological factors (post-stroke fatigue and depression-higher levels of fatigue and depression lead to lower QoL). The reviewed studies emphasized the importance of functional outcomes, post-stroke depression, fatigue and anxiety and early return to work. CONCLUSION Further longitudinal studies are needed to identify the trajectory of post-stroke psychosocial symptoms over time and other potential predictors of unfavourable long-term QoL, thus specific young stroke rehabilitation and stroke self-management support programmes should be developed (address physical, psychological factors which influence the psychosocial adaptation post-stroke and the perception of the QoL).
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Affiliation(s)
- Elena Gurková
- grid.10979.360000 0001 1245 3953Department of Nursing, Faculty of Health Sciences, Palacký University Olomouc, Hněvotínská 976/3, 775 15 Olomouc, Czech Republic
| | - Lenka Štureková
- grid.10979.360000 0001 1245 3953Department of Nursing, Faculty of Health Sciences, Palacký University Olomouc, Hněvotínská 976/3, 775 15 Olomouc, Czech Republic
| | - Petra Mandysová
- grid.10979.360000 0001 1245 3953Department of Nursing, Faculty of Health Sciences, Palacký University Olomouc, Hněvotínská 976/3, 775 15 Olomouc, Czech Republic
| | - Daniel Šaňák
- grid.10979.360000 0001 1245 3953Comprehensive Stroke Center, Department of Neurology, Palacký University Medical School and Hospital, Olomouc, Czech Republic
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21
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Laari S, Turunen K, Kauranen T, Mustanoja S, Lahti-Pulkkinen M, Tatlisumak T, Poutiainen E. Memory decline in young stroke survivors during a 9-year follow-up: A cohort study. Front Neurol 2022; 13:1069686. [PMID: 36504659 PMCID: PMC9732240 DOI: 10.3389/fneur.2022.1069686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 11/10/2022] [Indexed: 11/26/2022] Open
Abstract
Introduction A decade after stroke, young stroke survivors continue to suffer from cognitive impairment. However, it is not known whether this long-term cognitive outcome is caused in part by further cognitive decline or solely by incomplete recovery from the acute effects of ischemic stroke. We studied changes in three cognitive domains over a 9-year follow-up period after first-ever and only ischemic stroke. Patients and methods In this prospective, two-center cohort study, we recruited consecutive 18-65 year-old patients with acute stroke between 2007 and 2009, along with demographically matched stroke-free controls. We performed comprehensive neuropsychological assessments at 3 months, 2, and 9 years after stroke, and we also performed neurological examinations at the time of inclusion and at the 9-year follow-up. We assessed the associations among stroke, follow-up time and long-term cognitive outcomes using repeated-measures analysis of variance. Results The subjects comprised 85 patients who had had their first-ever and only ischemic stroke (mean age 53 years at inclusion), along with 31 stroke-free demographic controls. We compared the cognitive changes in patients to those in controls over a 9-year follow-up. After initial recovery between 3 months and 2 years after stroke, patients showed a decline in memory between 2 and 9 years after stroke compared to controls within the same time interval (immediate recall p < 0.001; delayed recall p < 0.001; list learning p < 0.001). Other than memory, we found no difference in cognitive changes between poststroke patients and controls. Discussion Our main finding was memory decline over a decade in young first-ever stroke patients with no further stroke or neurodegenerative disease. Our study extends the previous results of further memory decline in elderly stroke survivors to young stroke survivors. Conclusion Young stroke survivors might be at risk of memory decline over the decade following the stroke.
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Affiliation(s)
- Siiri Laari
- Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland,HUS Neurocenter, Helsinki University Hospital and University of Helsinki, Helsinki, Finland,*Correspondence: Siiri Laari
| | - Katri Turunen
- Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Tatu Kauranen
- Department of Neurology and Clinical Neurophysiology, Lapland Central Hospital, Rovaniemi, Finland
| | - Satu Mustanoja
- HUS Neurocenter, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Marius Lahti-Pulkkinen
- Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Turgut Tatlisumak
- Institute of Neuroscience and Physiology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden,Department of Neurology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Erja Poutiainen
- Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
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22
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Schellekens MMI, Boot EM, Verhoeven JI, Ekker MS, van Alebeek ME, Brouwers PJAM, Arntz RM, van Dijk GW, Gons RAR, van Uden IWM, den Heijer T, de Kort PLM, de Laat KF, van Norden A, Vermeer SE, van Zagten MSG, van Oostenbrugge RJ, Wermer MJH, Nederkoorn PJ, van Rooij FG, van den Wijngaard IR, de Leeuw FE, Kessels RPC, Tuladhar AM. Subacute cognitive impairment after first-ever transient ischemic attack or ischemic stroke in young adults: The ODYSSEY study. Eur Stroke J 2022; 8:283-293. [PMID: 37021157 PMCID: PMC10069191 DOI: 10.1177/23969873221132032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 09/21/2022] [Indexed: 11/07/2022] Open
Abstract
Introduction: We aimed to investigate the prevalence of cognitive impairment in the subacute phase after transient ischemic attack (TIA) and ischemic stroke (IS), factors associated with a vascular cognitive disorder, and the prevalence of subjective cognitive complaints and their relation with objective cognitive performance. Patients and methods: In this multicenter prospective cohort study, we recruited patients with first-ever TIA and IS, aged 18–49 years, between 2013 and 2021 for cognitive assessment up to 6 months after index event. We calculated composite Z-scores for seven cognitive domains. We defined cognitive impairment as a composite Z-score < −1.5. We defined major vascular cognitive disorder as a Z-score < −2.0 in one or more cognitive domains. Results: Fifty three TIA and 545 IS patients completed cognitive assessment with mean time to assessment of 89.7 (SD 40.7) days. The median NIHSS at admission was 3 (interquartile range, 1–5). Cognitive impairment was common in five domains (up to 37%), with similar proportion in TIA and IS patients. Patients with major vascular cognitive disorder had a lower education level, higher NIHSS scores and more frequent lesions in the left frontotemporal lobe than without vascular cognitive disorder ( p < 0.05 FDR-corrected). Subjective memory and executive cognitive complaints were present in about two-thirds of the patients, but were weakly associated with objective cognitive performance (β: −0.32 and −0.21, respectively). Discussion and conclusion: In the subacute phase after TIA or stroke in young adults, cognitive impairment and subjective cognitive complaints are prevalent, but they are weakly associated with each other.
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Affiliation(s)
- Mijntje MI Schellekens
- Department of Neurology, Radboud University Medical Centre, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands
| | - Esther M Boot
- Department of Neurology, Radboud University Medical Centre, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands
| | - Jamie I Verhoeven
- Department of Neurology, Radboud University Medical Centre, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands
| | - Merel S Ekker
- Department of Neurology, Radboud University Medical Centre, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands
| | | | - Paul JAM Brouwers
- Department of Neurology, Medisch Spectrum Twente, Enschede, The Netherlands
| | - Renate M Arntz
- Department of Neurology, Medisch Spectrum Twente, Enschede, The Netherlands
| | - Gert W van Dijk
- Department of Neurology, Canisius-Wilhelmina Hospital, Nijmegen, The Netherlands
| | - Rob AR Gons
- Department of Neurology, Catharina Hospital, Eindhoven, The Netherlands
| | - Inge WM van Uden
- Department of Neurology, Catharina Hospital, Eindhoven, The Netherlands
| | - Tom den Heijer
- Department of Neurology, Franciscus Gasthuis & Vlietland, BA Rotterdam, The Netherlands
| | - Paul LM de Kort
- Department of Neurology, Elisabeth-TweeSteden Hospital, Tilburg, Netherlands
| | | | - Anouk van Norden
- Department of Neurology, Amphia Hospital, Breda, The Netherlands
| | - Sarah E Vermeer
- Department of Neurology, Rijnstate Hospital, Arnhem, The Netherlands
| | - Marian SG van Zagten
- Department of Neurology, Jeroen Bosch Hospital, ‘s-Hertogenbosch, The Netherlands
| | - Robert J van Oostenbrugge
- Department of Neurology, School for Mental Health and Neuroscience (MHeNs), Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Marieke JH Wermer
- Department of Neurology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Paul J Nederkoorn
- Department of Neurology, Amsterdam University Medical Centre, location AMC, Amsterdam, The Netherlands
| | - Frank G van Rooij
- Department of Neurology, Medical Centre Leeuwarden, Leeuwarden, The Netherlands
| | | | - Frank-Erik de Leeuw
- Department of Neurology, Radboud University Medical Centre, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands
| | - Roy PC Kessels
- Radboud University, Donders Institute for Brain, Cognition and Behaviour, Center for Cognition, Nijmegen, The Netherlands
- Vincent van Gogh Institute for Psychiatry, Venray, The Netherlands
| | - Anil M Tuladhar
- Department of Neurology, Radboud University Medical Centre, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands
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23
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Chupina I, Sierpowska J, Zheng XY, Dewenter A, Piastra M, Piai V. Time course of right-hemisphere recruitment during word production following left-hemisphere damage: A single case of young stroke. Eur J Neurosci 2022; 56:5235-5259. [PMID: 36028218 PMCID: PMC9826534 DOI: 10.1111/ejn.15813] [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: 02/25/2022] [Revised: 08/19/2022] [Accepted: 08/25/2022] [Indexed: 01/11/2023]
Abstract
Our understanding of post-stroke language function is largely based on older age groups, who show increasing age-related brain pathology and neural reorganisation. To illustrate language outcomes in the young-adult brain, we present the case of J., a 23-year-old woman with chronic aphasia from a left-hemisphere stroke affecting the temporal lobe. Diffusion MRI-based tractography indicated that J.'s language-relevant white-matter structures were severely damaged. Employing magnetoencephalography (MEG), we explored J.'s conceptual preparation and word planning abilities using context-driven and bare picture-naming tasks. These revealed naming deficits, manifesting as word-finding difficulties and semantic paraphasias about half of the time. Naming was however facilitated by semantically constraining lead-in sentences. Altogether, this pattern indicates disrupted lexical-semantic and phonological retrieval abilities. MEG revealed that J.'s conceptual and naming-related neural responses were supported by the right hemisphere, compared to the typical left-lateralised brain response of a matched control. Differential recruitment of right-hemisphere structures (330-440 ms post-picture onset) was found concurrently during successful naming (right mid-to-posterior temporal lobe) and word-finding attempts (right inferior frontal gyrus). Disconnection of the temporal lobes via corpus callosum was not critical for recruitment of the right hemisphere in visually guided naming, possibly due to neural activity right lateralising from the outset. Although J.'s right hemisphere responded in a timely manner during word planning, its lexical and phonological retrieval abilities remained modest.
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Affiliation(s)
- Irina Chupina
- Donders Centre for CognitionRadboud UniversityNijmegenThe Netherlands
| | - Joanna Sierpowska
- Donders Centre for CognitionRadboud UniversityNijmegenThe Netherlands,Cognition and Brain Plasticity Unit, Department of Cognition, Development and Educational PsychologyInstitut de Neurociències, Universitat de BarcelonaBarcelonaSpain
| | - Xiaochen Y. Zheng
- Donders Centre for Cognitive NeuroimagingRadboud UniversityNijmegenThe Netherlands
| | - Anna Dewenter
- Institute for Stroke and Dementia Research (ISD)University Hospital, LMU MunichMunichGermany
| | - Maria‐Carla Piastra
- Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and BehaviourRadboud University Medical CenterNijmegenThe Netherlands,Department of Neuroinformatics, Donders Institute for Brain, Cognition and BehaviourRadboud UniversityNijmegenThe Netherlands,Clinical Neurophysiology, Technical Medical Centre, Faculty of Science and TechnologyUniversity of TwenteEnschedeThe Netherlands
| | - Vitória Piai
- Donders Centre for CognitionRadboud UniversityNijmegenThe Netherlands,Department of Medical Psychology, Donders Centre for Medical NeuroscienceRadboud University Medical CenterNijmegenThe Netherlands
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24
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Gopi Y, Wilding E, Madan CR. Memory rehabilitation: restorative, specific knowledge acquisition, compensatory, and holistic approaches. Cogn Process 2022; 23:537-557. [PMID: 35790619 PMCID: PMC9553770 DOI: 10.1007/s10339-022-01099-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 05/25/2022] [Indexed: 11/29/2022]
Abstract
Memory impairment following an acquired brain injury can negatively impact daily living and quality of life—but can be reduced by memory rehabilitation. Here, we review the literature on four approaches for memory rehabilitation and their associated strategies: (1) the restorative approach, aimed at a return to pre-morbid functioning, (2) the knowledge acquisition approach, involving training on specific information relevant to daily life, (3) the compensatory approach, targeted at improving daily functioning, and (4) the holistic approach, in which social, emotional, and behavioral deficits are addressed alongside cognitive consequences of acquired brain injury. Each memory rehabilitation approach includes specific strategies such as drill and practice (restorative), spaced retrieval (knowledge acquisition), memory aids (compensatory), or a combination of psychotherapy and cognitive strategies (holistic). Past research has demonstrated mixed support for the use of restorative strategies to improve memory function, whereas knowledge acquisition strategies show promising results on trained tasks but little generalization to untrained tasks and activities of daily living. Compensatory strategies remain widely used but require intensive training to be effectively employed. Finally, the holistic approach is becoming more widespread due to improvements in psychosocial wellbeing, yet there are considerable resource and cost requirements. Several factors can influence rehabilitation outcomes including metacognition and emotional disturbances. Considerations for future research to improve the applicability of strategies for memory rehabilitation include assessing memory impairment severity, examining memory needs in daily life, and exploring the long-term effects of memory rehabilitation.
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Affiliation(s)
- Yashoda Gopi
- School of Psychology, University of Nottingham, Nottingham, NG7 2RD, UK.
| | - Edward Wilding
- School of Psychology, University of Birmingham, Birmingham, UK
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25
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Sapuppo D, Bernhardt J, Carvalho LB, Churilov L, Thijs V. Self-evaluation of personal needs by community-living young stroke survivors using an online English language questionnaire. Disabil Rehabil 2022; 45:1830-1835. [PMID: 35617487 DOI: 10.1080/09638288.2022.2076935] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND Identifying personal needs of young stroke survivors is crucial for their recovery. PURPOSE Identify factors, burden, and significance of unmet needs of young community-living stroke survivors. MATERIALS AND METHODS We used online advertising and word-of-mouth snowballing to recruit participants for an English language online questionnaire constructed for this purpose. Eligible participants aged 18-55 at time of stroke. Needs were classified into seven domains: Healthcare Experience, Impairments from Stroke, Everyday Activities, Work/Study, Finances, Relationships, and Social Participation. Random-effects logistic regression was used to determine the probability of unmet needs and X2 test to determine significance of distribution across domains. RESULTS Out of 137 responses recorded: 32 did not meet inclusion criteria, 29 duplicates identified were discarded, and 76 eligible participants were analysed. Respondents were median 37 (IQR 32-47) years at time of stroke, and median 3 (1-5) years since stroke. Fifty-eight (76%) females. Modified Rankin Scale median score of 1 (1-3). Of 48 identified potential needs, 25 (IQR 19-30) were rated unmet. Twenty (IQR 15-25) considered of high significance. Unmet needs most frequently occurred in the domains: Impairments from Stroke, Finances, and Social Participation. CONCLUSIONS There is high burden of unmet needs in community-living young stroke survivors which are spread disproportionately across the identified domains.IMPLICATIONS FOR REHABILITATIONIdentifying personal needs of young stroke survivors is crucial for their recovery.Impairments after Stroke, Finances, and Social Participation were often selected as being high burden unmet needs for community-living young people after stroke.Employing a post-stroke checklist to guide exploration of needs in young stroke may better capture which needs are unmet.
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Affiliation(s)
- David Sapuppo
- Neurology Department, Austin Health, Melbourne, Australia
| | - Julie Bernhardt
- Stroke Division, Florey Institute of Neuroscience and Mental Health, Heidelberg, Australia
| | - Lilian B Carvalho
- Stroke Division, Florey Institute of Neuroscience and Mental Health, Heidelberg, Australia
| | - Leonid Churilov
- Department of Medicine (Austin Health) and Melbourne Brain Centre at Royal Melbourne Hospital, Melbourne Medical School, University of Melbourne, Australia
| | - Vincent Thijs
- Neurology Department, Austin Health, Melbourne, Australia.,Stroke Division, Florey Institute of Neuroscience and Mental Health, Heidelberg, Australia
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26
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Verstraeten S, Berkhoff A, Mark R, Sitskoorn M. Can subjective cognitive complaints at three months post stroke predict alteration in information processing speed during the first year? NEUROPSYCHOLOGY, DEVELOPMENT, AND COGNITION. SECTION B, AGING, NEUROPSYCHOLOGY AND COGNITION 2022; 30:472-485. [PMID: 35249465 DOI: 10.1080/13825585.2022.2048786] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Cognitive impairment, particularly slowing of information processing speed (IPS), is prevalent after stroke. However, the link between subjective cognitive complaints (SCC) and cognitive deficit remains unclear. This study evaluated the link between SCC at three months post stroke and deficit as well as objective alterations in IPS in the first year post stroke. Patients (N = 200) and healthy controls (N = 105) took part in the COMPlaints After Stroke study (COMPAS). SCC, IPS and depression were evaluated at 3 months, 1 and 2 years post stroke. The Reliable Change Index was used to assess change in IPS in the first year post. Approximately one out of three patients showed deficit in IPS irrespective of time post stroke, while a change in IPS (N = 117) over time was relatively uncommon. SCC at three months post stroke did not predict change in IPS between three months and one year post stroke, where depressive symptoms did show a link. Cross sectional data showed a deficit in IPS in a substantial number of stroke patients irrespective of the point in time. Longitudinal data revealed a further decline in a small subgroup in the first year post stroke, which was not predicted by SCC at three months post stroke. The findings show that, irrespective of time post stroke and even when stroke is relatively mild, impairment in IPS is prevalent, but cannot be predicted by the complaints patients express. The link with depressive symptoms needs more exploration.
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Affiliation(s)
- Sonja Verstraeten
- Department of Medical Psychology, Máxima Medical Center, Veldhoven, The Netherlands
| | | | - Ruth Mark
- Department of Cognitive Neuropsychology, Tilburg University, Tilburg, The Netherlands
| | - Margriet Sitskoorn
- Department of Cognitive Neuropsychology, Tilburg University, Tilburg, The Netherlands
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27
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Pruijssen JT, Wenmakers A, Kessels RPC, Piai V, Meijer FJA, Pegge SAH, Loonen JJ, Tuladhar AM, Hansen HHG, Kaanders JHAM, Wilbers J. Long-term cognitive, psychosocial, and neurovascular complications of unilateral head and neck irradiation in young to middle-aged adults. BMC Cancer 2022; 22:244. [PMID: 35248013 PMCID: PMC8897732 DOI: 10.1186/s12885-022-09295-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 02/10/2022] [Indexed: 11/16/2022] Open
Abstract
Background With a growing, younger population of head and neck cancer survivors, attention to long-term side-effects of prior, often radiotherapeutic, treatment is warranted. Therefore, we studied the long-term cognitive effects in young adult patients irradiated for head and neck neoplasms (HNN). Methods Young to middle-aged adults with HNN (aged 18-40 years) and treated with unilateral neck irradiation ≥ 5 years before inclusion underwent cardiovascular risk and neuropsychological assessments and answered validated questionnaires regarding subjective cognitive complaints, fatigue, depression, quality of life, and cancer-specific distress. Additionally, magnetic resonance imaging (MRI) of the brain was performed to assess white matter hyperintensities (WMH), infarctions, and atrophy. Results Twenty-nine patients (aged 24–61, 13 men) median 9.2 [7.3–12.9] years post-treatment were included. HNN patients performed worse in episodic memory (Z-score = -1.16 [-1.58–0.34], p < 0.001) and reported more fatigue symptoms (Z-score = 1.75 [1.21–2.00], p < 0.001) compared to normative data. Furthermore, patients had a high level of fear of tumor recurrence (13 patients [44.8%]) and a heightened speech handicap index (13 patients [44.8%]). Only a small number of neurovascular lesions were found (3 infarctions in 2 patients and 0.11 [0.00–0.40] mL WMH), unrelated to the irradiated side. Cognitive impairment was not associated with WMH, brain atrophy, fatigue, or subjective speech problems. Conclusions HNN patients showed impairments in episodic memory and an increased level of fatigue ≥ 5 years after radiotherapy compared to normative data. Cognitive impairments could not be explained by WMH or brain atrophy on brain MRI or psychological factors. Trial registration Clinicaltrials.gov (https://clinicaltrials.gov/ct2/show/NCT04257968). Supplementary Information The online version contains supplementary material available at 10.1186/s12885-022-09295-9.
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28
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Neuroprotective strategies for acute ischemic stroke: Targeting oxidative stress and prolyl hydroxylase domain inhibition in synaptic signalling. BRAIN DISORDERS 2022. [DOI: 10.1016/j.dscb.2022.100030] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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Huang YY, Chen SD, Leng XY, Kuo K, Wang ZT, Cui M, Tan L, Wang K, Dong Q, Yu JT. Post-Stroke Cognitive Impairment: Epidemiology, Risk Factors, and Management. J Alzheimers Dis 2022; 86:983-999. [PMID: 35147548 DOI: 10.3233/jad-215644] [Citation(s) in RCA: 53] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Stroke, characterized as a neurological deficit of cerebrovascular cause, is very common in older adults. Increasing evidence suggests stroke contributes to the risk and severity of cognitive impairment. People with cognitive impairment following stroke often face with quality-of-life issues and require ongoing support, which have a profound effect on caregivers and society. The high morbidity of post-stroke cognitive impairment (PSCI) demands effective management strategies, in which preventive strategies are more appealing, especially those targeting towards modifiable risk factors. In this review article, we attempt to summarize existing evidence and knowledge gaps on PSCI: elaborating on the heterogeneity in current definitions, reporting the inconsistent findings in PSCI prevalence in the literature, exploring established or less established predictors, outlining prevention and treatment strategies potentially effective or currently being tested, and proposing promising directions for future research.
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Affiliation(s)
- Yu-Yuan Huang
- Department of Neurology and Institute of Neurology, Huashan Hospital, Shanghai Medical College, Fudan University, China
| | - Shi-Dong Chen
- Department of Neurology and Institute of Neurology, Huashan Hospital, Shanghai Medical College, Fudan University, China
| | - Xin-Yi Leng
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, China
| | - Kevin Kuo
- Department of Neurology and Institute of Neurology, Huashan Hospital, Shanghai Medical College, Fudan University, China
| | - Zuo-Teng Wang
- Department of Neurology, Qingdao Municipal Hospital, College of Medicine and Pharmaceutics, Ocean University of China, China
| | - Mei Cui
- Department of Neurology and Institute of Neurology, Huashan Hospital, Shanghai Medical College, Fudan University, China
| | - Lan Tan
- Department of Neurology, Qingdao Municipal Hospital, College of Medicine and Pharmaceutics, Ocean University of China, China.,Department of Neurology, Qingdao Municipal Hospital, Qingdao University, China
| | - Kai Wang
- Department of Neurology, the First Affiliated Hospital of Anhui Medical University, China
| | - Qiang Dong
- Department of Neurology and Institute of Neurology, Huashan Hospital, Shanghai Medical College, Fudan University, China
| | - Jin-Tai Yu
- Department of Neurology and Institute of Neurology, Huashan Hospital, Shanghai Medical College, Fudan University, China
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A Contemporary Review of Epidemiology, Risk Factors, Etiology, and Outcomes of Premature Stroke. Curr Atheroscler Rep 2022; 24:939-948. [PMID: 36374365 PMCID: PMC9660017 DOI: 10.1007/s11883-022-01067-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/31/2022] [Indexed: 11/16/2022]
Abstract
PURPOSE OF REVIEW Recent data identifies increases in young ischemic and hemorrhagic strokes. We provide a contemporary overview of current literature on stroke among young patients or premature stroke along with directions for future investigation. RECENT FINDINGS Strokes in the young are highly heterogenous and often cryptogenic. Sex distribution and risk factors shift from women among the youngest age groups (< 35) to men over the age of 45, with a coinciding rise in traditional vascular risk factors. Incidence is higher in minority and socioeconomically disadvantaged populations, and the impact of stroke among these communities may be exaggerated by disparities in symptom recognition and access to care. Special diagnostic work-up may be needed, and a lower threshold for diagnosis is warranted as potential misdiagnosis is a concern and may preclude necessary triage and management. Although "premature strokes" form a relatively small proportion of total incidence, they vary greatly across subgroups and present an outsized impact on quality of life and productivity.
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Stuckey SM, Ong LK, Collins-Praino LE, Turner RJ. Neuroinflammation as a Key Driver of Secondary Neurodegeneration Following Stroke? Int J Mol Sci 2021; 22:ijms222313101. [PMID: 34884906 PMCID: PMC8658328 DOI: 10.3390/ijms222313101] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 11/25/2021] [Accepted: 12/01/2021] [Indexed: 01/13/2023] Open
Abstract
Ischaemic stroke involves the rapid onset of focal neurological dysfunction, most commonly due to an arterial blockage in a specific region of the brain. Stroke is a leading cause of death and common cause of disability, with over 17 million people worldwide suffering from a stroke each year. It is now well-documented that neuroinflammation and immune mediators play a key role in acute and long-term neuronal tissue damage and healing, not only in the infarct core but also in distal regions. Importantly, in these distal regions, termed sites of secondary neurodegeneration (SND), spikes in neuroinflammation may be seen sometime after the initial stroke onset, but prior to the presence of the neuronal tissue damage within these regions. However, it is key to acknowledge that, despite the mounting information describing neuroinflammation following ischaemic stroke, the exact mechanisms whereby inflammatory cells and their mediators drive stroke-induced neuroinflammation are still not fully understood. As a result, current anti-inflammatory treatments have failed to show efficacy in clinical trials. In this review we discuss the complexities of post-stroke neuroinflammation, specifically how it affects neuronal tissue and post-stroke outcome acutely, chronically, and in sites of SND. We then discuss current and previously assessed anti-inflammatory therapies, with a particular focus on how failed anti-inflammatories may be repurposed to target SND-associated neuroinflammation.
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Affiliation(s)
- Shannon M. Stuckey
- Discipline of Anatomy and Pathology, School of Biomedicine, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide 5005, Australia; (S.M.S.); (L.E.C.-P.)
| | - Lin Kooi Ong
- School of Pharmacy, Monash University Malaysia, Subang Jaya 47500, Malaysia;
- School of Biomedical Sciences and Pharmacy and the Priority Research Centre for Stroke and Brain Injury, The University of Newcastle, Callaghan 2308, Australia
| | - Lyndsey E. Collins-Praino
- Discipline of Anatomy and Pathology, School of Biomedicine, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide 5005, Australia; (S.M.S.); (L.E.C.-P.)
| | - Renée J. Turner
- Discipline of Anatomy and Pathology, School of Biomedicine, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide 5005, Australia; (S.M.S.); (L.E.C.-P.)
- Correspondence: ; Tel.: +61-8-8313-3114
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NETosis in ischemic/reperfusion injuries: An organ-based review. Life Sci 2021; 290:120158. [PMID: 34822798 DOI: 10.1016/j.lfs.2021.120158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 11/11/2021] [Accepted: 11/13/2021] [Indexed: 10/19/2022]
Abstract
Neutrophil extracellular trap (NETosis), the web-like structures induced by neutrophil death, is an important inflammatory mechanism of the immune system leading to reactive oxygen species production/coagulopathy, endothelial dysfunction, atherosclerosis, and ischemia. NETosis exerts its role through different mechanisms such as triggering Toll-like receptors, inflammatory cytokines, platelet aggregation, neutrophil activation/infiltration, and vascular impairment. NETosis plays a key role in the prognosis of coronary artery disease, ischemic injury of kidney, lung, gastrointestinal tract and skeletal muscles. In this review, we explored the molecular mechanisms involved in NETosis, and ischemic/reperfusion injuries in body organs.
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Does the second ischemic stroke herald a higher proportional risk for cognitive and physical impairment than the first-ever one? THE EGYPTIAN JOURNAL OF NEUROLOGY, PSYCHIATRY AND NEUROSURGERY 2021. [DOI: 10.1186/s41983-021-00404-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Abstract
Background
Post-stroke cognitive and physical disabilities are common sequelae; however, it seems that the second ischemic stroke carries a higher proportional risk more than expected. In this study, we aimed to study second stroke sequelae over first-ever one with regard to cognition and physical competence. This study was conducted on two groups; the first composed of 40 patients with acute first lifetime ischemic stroke, and the second group composed of 40 acute second lifetime ischemic stroke. The study was done at menoufiya university hospitals from August 2017 to August 2018. Modified Rankin Scale (MRS), National Institute of Health Stroke Scale (NIHSS), and MINI-Cog Score, were performed at onset, 2 weeks and 3 months later. In addition, routine lab and neuro-imaging were also done.
Results
Size of infarction is larger in 2nd group (p < 0.001), MRS, and NIHSS are significantly higher in 2nd group. Also, there are significant differences between baseline, 2 weeks, and 3 months follow-up in MRS and NIHSS. Mini-Cog scale showed significant difference between the two groups in favor of better cognition in the 1st group. Atrial fibrillation (AF), p = 0.012 was a significant risk factor in the 1st group while smoking, p = 0.017 was the significant risk factor in the 2nd group. Large size stroke was found as independent risk factor in the 2nd group (p < 0.001).
Conclusions
There are significant cognitive and physical disabilities in the second recurrent ischemic stroke as compared to the first-ever one, and the second stroke tend to be more dangerous and carry more disability.
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Association between vision impairment and cognitive decline in older adults with stroke: Health and Retirement Study. Aging Clin Exp Res 2021; 33:2605-2610. [PMID: 33428171 DOI: 10.1007/s40520-020-01776-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 12/07/2020] [Indexed: 10/22/2022]
Abstract
Stroke survivors may experience multiple residual symptoms post-stroke, including vision impairment (VI) and cognitive decline. Prior studies have shown that VI is associated with cognitive decline, but have not evaluated the contribution of VI to post-stroke cognitive changes. We used data from four waves (2010-2016) of the Health and Retirement Study to investigate the cognitive trajectories of stroke survivors with and without VI. Vision (excellent-very good[ref], good, fair-poor) and stroke diagnosis were self-reported. Cognition was defined using the Telephone Interview for Cognitive Status. Regression was used to model the association between vision and change in cognitive function, adjusting for confounders. The final sample included 1,439 stroke survivors and the average follow-up time was 4.1 years. Fair-poor overall (B = -1.30, p < 0.01), near (B = -1.53, p < 0.001), and distance (B = -1.27, p < 0.001) vision were associated with significantly lower baseline cognitive function. VI was not associated with the rate of cognitive decline. Future research should determine whether specific types of VI potentiate the risk of cognitive impairment and dementia in stroke survivors.
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Butt JH, Kragholm K, Kruuse C, Christensen H, Iversen HK, Johnsen SP, Rørth R, Vinding NE, Yafasova A, Christiansen CB, Gislason GH, Torp-Pedersen C, Køber L, Fosbøl EL. Workforce Attachment after Ischemic Stroke - The Importance of Time to Thrombolytic Therapy. J Stroke Cerebrovasc Dis 2021; 30:106031. [PMID: 34450481 DOI: 10.1016/j.jstrokecerebrovasdis.2021.106031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/23/2021] [Accepted: 08/01/2021] [Indexed: 12/09/2022] Open
Abstract
OBJECTIVES The ability to remain in employment addresses an important consequence of stroke beyond the usual clinical parameters. However, data on the association between time to intravenous thrombolysis and workforce attachment in patients with acute ischemic stroke are sparse. MATERIALS AND METHODS In this nationwide cohort study, stroke patients of working age (18-60 years) treated with thrombolysis (2011-2016) who were part of the workforce prior to admission and alive at discharge were identified using the Danish Stroke Registry. The association between time to thrombolysis and workforce attachment one year later was examined with multivariable logistic regression. RESULTS The study population comprised 1,329 patients (median age 51 years [25th-75th percentile 45-56], 67.3% men). The median National Institutes of Health Stroke Scale score at presentation was 4 (25th-75th percentile 2-8), and the median time from symptom-onset to initiation of thrombolysis was 140min (25th-75th percentile 104-196min). The proportion of patients who were part of the workforce at one-year follow-up was 64.6%, 64.3%, 64.9%, and 60.0% in patients receiving thrombolysis within 90min, between 91-180min, between 181-270min, and after 270min, respectively. In adjusted analysis, time to thrombolysis between 91-180min, 181-270min, and >270min was not significantly associated with workforce attachment compared with thrombolysis received ≤90min of symptom-onset (ORs 0.89 [95%CI 0.60-1.31], 0.93 [0.66-1.31], and 0.80 [0.43-1.52], respectively). CONCLUSIONS In patients of working age admitted with stroke and treated with thrombolysis, two out of three were part of the workforce one year after discharge. There was no graded relationship between time to thrombolysis and the likelihood of workforce attachment.
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Affiliation(s)
- Jawad H Butt
- Department of Cardiology, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, Copenhagen 2100, Denmark.
| | | | - Christina Kruuse
- Department of Neurology, Herlev-Gentofte University Hospital, Denmark
| | - Hanne Christensen
- Department of Neurology, Bispebjerg Hospital, Copenhagen University Hospital, Denmark
| | - Helle K Iversen
- Department of Neurology, Rigshospitalet, Copenhagen University Hospital, Denmark
| | - Søren Paaske Johnsen
- Danish Center for Clinical Health Services Research, Department of Clinical Medicine, Aalborg University, Denmark
| | - Rasmus Rørth
- Department of Cardiology, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, Copenhagen 2100, Denmark
| | - Naja Emborg Vinding
- Department of Cardiology, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, Copenhagen 2100, Denmark
| | - Adelina Yafasova
- Department of Cardiology, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, Copenhagen 2100, Denmark
| | | | - Gunnar H Gislason
- Department of Cardiology, Herlev-Gentofte University Hospital, Denmark
| | | | - Lars Køber
- Department of Cardiology, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, Copenhagen 2100, Denmark
| | - Emil L Fosbøl
- Department of Cardiology, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, Copenhagen 2100, Denmark
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Quantifying changes over 1 year in motor and cognitive skill after transient ischemic attack (TIA) using robotics. Sci Rep 2021; 11:17011. [PMID: 34426586 PMCID: PMC8382836 DOI: 10.1038/s41598-021-96177-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 07/29/2021] [Indexed: 12/01/2022] Open
Abstract
Recent work has highlighted that people who have had TIA may have abnormal motor and cognitive function. We aimed to quantify deficits in a cohort of individuals who had TIA and measured changes in their abilities to perform behavioural tasks over 1 year of follow-up using the Kinarm Exoskeleton robot. We additionally considered performance and change over time in an active control cohort of migraineurs. Individuals who had TIA or migraine completed 8 behavioural tasks that assessed cognition as well as motor and sensory functionality in the arm. Participants in the TIA cohort were assessed at 2, 6, 12, and 52 weeks after symptom resolution. Migraineurs were assessed at 2 and 52 weeks after symptom resolution. We measured overall performance on each task using an aggregate metric called Task Score and quantified any significant change in performance including the potential influence of learning. We recruited 48 individuals to the TIA cohort and 28 individuals to the migraine cohort. Individuals in both groups displayed impairments on robotic tasks within 2 weeks of symptom cessation and also at approximately 1 year after symptom cessation, most commonly in tests of cognitive-motor integration. Up to 51.3% of people in the TIA cohort demonstrated an impairment on a given task within 2-weeks of symptom resolution, and up to 27.3% had an impairment after 1 year. In the migraine group, these numbers were 37.5% and 31.6%, respectively. We identified that up to 18% of participants in the TIA group, and up to 10% in the migraine group, displayed impairments that persisted for up to 1 year after symptom resolution. Finally, we determined that a subset of both cohorts (25-30%) experienced statistically significant deteriorations in performance after 1 year. People who have experienced transient neurological symptoms, such as those that arise from TIA or migraine, may continue to experience lasting neurological impairments. Most individuals had relatively stable task performance over time, with some impairments persisting for up to 1 year. However, some individuals demonstrated substantial changes in performance, which highlights the heterogeneity of these neurological disorders. These findings demonstrate the need to consider factors that contribute to lasting neurological impairment, approaches that could be developed to alleviate the lasting effects of TIA or migraine, and the need to consider individual neurological status, even following transient neurological symptoms.
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Samuelsson H, Viken J, Redfors P, Holmegaard L, Blomstrand C, Jern C, Jood K. Cognitive function is an important determinant of employment amongst young ischaemic stroke survivors with good physical recovery. Eur J Neurol 2021; 28:3692-3701. [PMID: 34242459 DOI: 10.1111/ene.15014] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 07/03/2021] [Accepted: 07/06/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND PURPOSE This cross-sectional cohort study aims at investigating young ischaemic stroke survivors with good physical recovery 7 years post-stroke in order to analyze the relation between late cognitive ability and employment. METHODS Consecutive ischaemic stroke survivors participating in the Sahlgrenska Academy Study on Ischemic Stroke, <55 years of age at stroke onset, and with no or minimal persisting neurological deficits corresponding to a score ≤2 on the National Institutes of Health Stroke Scale at long-term follow-up 7 years post-stroke were included. At this follow-up, the participants were assessed with respect to general cognitive function, processing speed, executive functions, cardiovascular risk factors, self-reported employment, cognitive difficulties, fatigue, depressive symptoms, anxiety and physical function. RESULTS Seven years post-stroke 112/142 (79%) had part-time or full-time work and 30/142 (21%) had full-time disability pension or sick leave. Compared to those with full-time disability pension or sick leave, participants with current employment demonstrated significantly better performance with respect to general cognitive function and processing speed, and significantly lower self-ratings for cognitive difficulties, physical limitations, fatigue and depressed mood. Multivariable logistic regression selected self-rated memory (odds ratio [OR] 2.61, 95% confidence interval [CI] 1.61-4.21), processing speed (OR 3.50, 95% CI 1.67-7.33) and self-rated communication skills (OR 3.46, 95% CI 1.75-6.85) as most important correlates (area under the curve 0.83-0.87) of having current employment. CONCLUSION This study indicates that cognitive dysfunction is an important contributor to long-term work disability amongst young stroke survivors with good physical recovery.
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Affiliation(s)
- Hans Samuelsson
- Department of Psychology, Faculty of Social Sciences, University of Gothenburg, Gothenburg, Sweden.,Department of Clinical Neuroscience and Rehabilitation, Institute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Region Västra Götaland, Department of Neurology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Jo Viken
- Department of Clinical Neuroscience and Rehabilitation, Institute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Petra Redfors
- Department of Clinical Neuroscience and Rehabilitation, Institute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Region Västra Götaland, Department of Neurology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Lukas Holmegaard
- Department of Clinical Neuroscience and Rehabilitation, Institute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Region Västra Götaland, Department of Neurology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Christian Blomstrand
- Department of Clinical Neuroscience and Rehabilitation, Institute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Christina Jern
- Department of Laboratory Medicine, Institute of Biomedicine, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Region Västra Götaland, Department of Clinical Genetics and Genomics, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Katarina Jood
- Department of Clinical Neuroscience and Rehabilitation, Institute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Region Västra Götaland, Department of Neurology, Sahlgrenska University Hospital, Gothenburg, Sweden
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MacIntosh BJ, Cohen E, Colby-Milley J, Fang J, Zhou L, Ouk M, Wu CY, Shah BR, Lanctôt K, Herrmann N, Linkewich E, Law M, Black SE, Swartz RH, Kapral MK, Edwards JD, Swardfager W. Diabetes Mellitus Is Associated With Poor In-Hospital and Long-Term Outcomes in Young and Midlife Stroke Survivors. J Am Heart Assoc 2021; 10:e019991. [PMID: 34219470 PMCID: PMC8483482 DOI: 10.1161/jaha.120.019991] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background The incidence of ischemic stroke has increased among adults aged 18 to 64 years, yet little is known about relationships between specific risk factors and outcomes. This study investigates in-hospital and long-term outcomes in patients with stroke aged <65 years with preexisting diabetes mellitus. Methods and Results Consecutive patients aged <65 years admitted to comprehensive stroke centers for acute ischemic stroke between 2003 and 2013 were identified from the Ontario Stroke Registry. Multinomial logistic regression was used to estimate adjusted odds ratio (OR [95% CI]) of in-hospital mortality or direct discharge to long-term or continuing care. Cox proportional hazards regression was used to estimate the adjusted hazards ratio (aHR [95% CI]) of long-term mortality, readmission for stroke/transient ischemic attack, admission to long-term care, and incident dementia. Predefined sensitivity analyses examined stroke outcomes among young (aged 18-49 years) and midlife (aged 50-65 years) subgroups. Among 8293 stroke survivors (mean age, 53.6±8.9 years), preexisting diabetes mellitus was associated with a higher likelihood of in-hospital death (adjusted OR, 1.46 [95% CI, 1.14-1.87]) or direct discharge to long-term care (adjusted OR, 1.65 [95% CI, 1.07-2.54]). Among stroke survivors discharged (N=7847) and followed up over a median of 6.3 years, preexisting diabetes mellitus was associated with increased hazards of death (aHR, 1.68 [95% CI, 1.50-1.88]), admission to long-term care (aHR, 1.57 [95% CI, 1.35-1.82]), readmission for stroke/transient ischemic attack (aHR, 1.37 [95% CI, 0.21-1.54]), and incident dementia (aHR, 1.44 [95% CI, 1.17-1.77]). Only incident dementia was not increased for young stroke survivors. Conclusions Focused secondary prevention and risk factor management may be needed to address poor long-term outcomes for patients with stroke aged <65 years with preexisting diabetes mellitus.
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Affiliation(s)
- Bradley J MacIntosh
- Hurvitz Brain Sciences ProgramSunnybrook Research Institute Toronto ON Canada.,Heart and Stroke Foundation Canadian Partnership for Stroke Recovery Toronto ON Canada
| | - Ellen Cohen
- Heart and Stroke Foundation Canadian Partnership for Stroke Recovery Toronto ON Canada.,Department of Physical Therapy University of Toronto Toronto ON Canada
| | - Jessica Colby-Milley
- Hurvitz Brain Sciences ProgramSunnybrook Research Institute Toronto ON Canada.,Heart and Stroke Foundation Canadian Partnership for Stroke Recovery Toronto ON Canada
| | | | | | - Michael Ouk
- Hurvitz Brain Sciences ProgramSunnybrook Research Institute Toronto ON Canada.,Department of Pharmacology & Toxicology University of Toronto Toronto ON Canada
| | - Che-Yuan Wu
- Hurvitz Brain Sciences ProgramSunnybrook Research Institute Toronto ON Canada.,Department of Pharmacology & Toxicology University of Toronto Toronto ON Canada
| | - Baiju R Shah
- Department of Medicine and Institute for Health Policy, Management, and Evaluation University of Toronto Toronto ON Canada.,Divisions of Endocrinology and Obstetric Medicine Department of Medicine Sunnybrook Health Sciences Centre Toronto ON Canada
| | - Krista Lanctôt
- Hurvitz Brain Sciences ProgramSunnybrook Research Institute Toronto ON Canada.,Department of Psychiatry Sunnybrook Health Sciences Centre University of Toronto Toronto ON Canada
| | - Nathan Herrmann
- Hurvitz Brain Sciences ProgramSunnybrook Research Institute Toronto ON Canada.,Department of Psychiatry Sunnybrook Health Sciences Centre University of Toronto Toronto ON Canada
| | - Elizabeth Linkewich
- Department of Occupational Science and Occupational Therapy University of Toronto Toronto ON Canada.,Regional Stroke Centre Sunnybrook Health Sciences Centre Toronto ON Canada
| | - Marcus Law
- Department of Family & Community Medicine University of Toronto Toronto ON Canada.,UHN Toronto Rehabilitation Institute Toronto ON Canada
| | - Sandra E Black
- Hurvitz Brain Sciences ProgramSunnybrook Research Institute Toronto ON Canada.,Department of Medicine (Neurology) Sunnybrook Health Sciences Centre University of Toronto Toronto ON Canada
| | - Richard H Swartz
- ICES Toronto ON Canada.,Department of Medicine (Neurology) Sunnybrook Health Sciences Centre University of Toronto Toronto ON Canada
| | - Moira K Kapral
- ICES Toronto ON Canada.,Department of Medicine and Institute for Health Policy, Management, and Evaluation University of Toronto Toronto ON Canada
| | - Jodi D Edwards
- University of Ottawa Heart InstituteUniversity of Ottawa Ottawa ON Canada.,School of Epidemiology and Public Health University of Ottawa Ottawa ON Canada
| | - Walter Swardfager
- Department of Pharmacology & Toxicology University of Toronto Toronto ON Canada.,KITE UHN Toronto Rehabilitation Institute Toronto ON Canada
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Done IP, Aghoram R, Narayan SK. Everyday Abilities Scale for India in Screening for Poststroke Dementia Among Young Stroke Survivors. Alzheimer Dis Assoc Disord 2021; 35:275-277. [PMID: 33973879 DOI: 10.1097/wad.0000000000000452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 03/18/2021] [Indexed: 11/27/2022]
Abstract
INTRODUCTION Cognitive dysfunction after stroke is an important concern. We explored the utility of everyday abilities scale for India (EASI) for screening for dementia among young stroke survivors. METHODS We interviewed 150 young stroke survivors and caregivers. Vascular dementia was diagnosed according to American Heart Association-American Stroke Association (ASA-AHA) criteria. EASI was administered to all caregivers. Receiver operating characteristic curve analysis was used to determine the area under the curve and optimum cut-points for EASI for the identification of dementia. RESULTS Median EASI scores among subjects with dementia (n=35; 23.3%) was 2 (interquartile range: 0-4) and significantly different from those without (median: 0; interquartile range: 0-1; P<0.001). The area under the curve was 0.768 (95% confidence interval: 0.674-0.863), and at the optimum cut-point of 2 on EASI, a sensitivity of 60% and specificity of 91.3% was achieved for the identification of dementia. CONCLUSION EASI appears to be a promising tool to screen for dementia among young stroke survivors.
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Affiliation(s)
- Indira P Done
- Department of Neurology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, Tamil Nadu, India
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40
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Evaluating High-Functioning Young Stroke Survivors with Cognitive Complaints. Can J Neurol Sci 2021; 49:368-372. [PMID: 34134793 DOI: 10.1017/cjn.2021.137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND The Montreal Cognitive Assessment (MoCA) is a commonly used cognitive outcome in stroke trials. However, it may be insufficiently sensitive to detect impairment in high-functioning stroke survivors. The National Institutes of Health (NIH) Toolbox Cognition Battery (NIHTB-CB), a 30-min comprehensive tablet-based cognitive assessment, may be a better choice to characterize cognitive issues in this cohort. METHODS We compared MoCA and NIHTB-CB performance in young stroke survivors (18-55 years) with excellent functional outcomes (modified Rankin Scale 0-1) reporting subjective cognitive complaints to that of age-matched healthy controls. We recruited 53 stroke survivors and 53 controls. We performed a sensitivity analysis in those participants with normal MoCA scores (≥26). RESULTS Median MoCA scores were not significantly different between stroke survivors (27.0 vs. 28.0) and healthy controls. Mean T scores for NIHTB-CB fluid (44.9 vs. 54.2), crystallized (53.8 vs. 60.0), and total cognition (49.1 vs. 58.4) components were significantly lower in stroke survivors compared to healthy controls (p < 0.001 for all). In participants scoring within normal range (≥26) on the MoCA, NIHTB-CB scores for all components remained significantly lower in stroke survivors. CONCLUSIONS In young stroke survivors with excellent functional outcomes and subjective cognitive complaints, the NIHTB-CB, but not the MoCA, was able to detect differences in cognitive performance between stroke survivors and healthy controls. The NIHTB-CB may be a suitable outcome measure for cognition in clinical trials examining higher-functioning young stroke survivors.
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Harris Walker G, Gonzalez-Guarda R, Yang Q, Shah S, Prvu Bettger J. Socio-ecological perspective on factors influencing acute recovery of younger stroke survivors: A mixed methods study. J Adv Nurs 2021; 77:2860-2874. [PMID: 33650219 DOI: 10.1111/jan.14778] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 01/13/2021] [Accepted: 01/20/2021] [Indexed: 12/13/2022]
Abstract
AIMS Stroke is affecting an increasing number of young and middle-aged adults. Given the substantial diversion from anticipated life trajectories that younger stroke survivors experience as a result of their stroke deficits, their health-related quality of life (HRQOL) is likely to be negatively impacted during the immediate post-acute recovery period. The aim of this study was to generate a comprehensive understanding of the influences on HRQOL and acute recovery during the first three months following stroke for younger adults using a socio-ecological perspective. DESIGN Longitudinal, convergent mixed methods design. METHODS HRQOL survey data, assessed using the Patient Generated Index (N = 31), and qualitative interview data about survivors' recovery experiences (N = 20) were collected. Simple linear regression and effect size results were integrated with themes and sub-themes identified from conventional content analysis using joint data displays. RESULTS Depression and fatigue negatively affected recovery at the individual level. At the family and societal level, family functioning, social support including being married, having insurance, working, adequate income and being unemployed post-stroke all positively impacted recovery. Qualitative findings revealed determination, coping, and accessing healthcare to positively affect recovery though a meta-inference could not be drawn as no quantitative data addressed these concepts. CONCLUSION A variety of factors intersecting across socio-ecological levels were perceived by young stroke survivors to influence acute recovery experiences and outcomes. IMPACT This study identified individual-, family- and societal-level factors in younger adults' environments that may affect the acute stroke recovery experience. Findings underscore the need for research and clinical approaches that consider environmental factors at multiple levels of influence when supporting stroke recovery for younger adults.
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Affiliation(s)
| | | | - Qing Yang
- Duke University School of Nursing, Durham, NC, USA
| | | | - Janet Prvu Bettger
- Duke University School of Nursing, Durham, NC, USA.,Duke University School of Medicine, Durham, NC, USA
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Verdelho A, Wardlaw J, Pavlovic A, Pantoni L, Godefroy O, Duering M, Charidimou A, Chabriat H, Biessels GJ. Cognitive impairment in patients with cerebrovascular disease: A white paper from the links between stroke ESO Dementia Committee. Eur Stroke J 2021; 6:5-17. [PMID: 33817330 PMCID: PMC7995319 DOI: 10.1177/23969873211000258] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 02/04/2021] [Indexed: 12/21/2022] Open
Abstract
PURPOSE Many daily-life clinical decisions in patients with cerebrovascular disease and cognitive impairment are complex. Evidence-based information sustaining these decisions is frequently lacking. The aim of this paper is to propose a practical clinical approach to cognitive impairments in patients with known cerebrovascular disease. METHODS The document was produced by the Dementia Committee of the European Stroke Organisation (ESO), based on evidence from the literature where available and on the clinical experience of the Committee members. This paper was endorsed by the ESO. FINDINGS Many patients with stroke or other cerebrovascular disease have cognitive impairment, but this is often not recognized. With improvement in acute stroke care, and with the ageing of populations, it is expected that more stroke survivors and more patients with cerebrovascular disease will need adequate management of cognitive impairment of vascular etiology. This document was conceived for the use of strokologists and for those clinicians involved in cerebrovascular disease, with specific and practical hints concerning diagnostic tools, cognitive impairment management and decision on some therapeutic options.Discussion and conclusions: It is essential to consider a possible cognitive deterioration in every patient who experiences a stroke. Neuropsychological evaluation should be adapted to the clinical status. Brain imaging is the most informative biomarker concerning prognosis. Treatment should always include adequate secondary prevention.
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Affiliation(s)
- Ana Verdelho
- Department of Neurosciences and Mental Health, CHLN-Hospital de Santa Maria, Instituto de Medicina Molecular – IMM e Instituto de Saúde Ambiental –ISAMB, Faculdade de Medicina, University of Lisbon, Lisbon, Portugal
| | - Joanna Wardlaw
- Centre for Clinical Brain Sciences, UK Dementia Research Institute, University of Edinburgh, Edinburgh, UK
| | - Aleksandra Pavlovic
- Faculty for Special Education and Rehabilitation, University of Belgrade, Belgrade, Serbia
| | - Leonardo Pantoni
- Stroke and Dementia Lab, "Luigi Sacco" Department of Biomedical and Clinical Sciences, University of Milan, Milan, Italy
| | - Olivier Godefroy
- Department of Neurology, Amiens University Hospital, Laboratory of Functional Neurosciences1,6 (UR UPJV 4559), Jules Verne Picardy University, Amiens, France
| | - Marco Duering
- Institute for Stroke and Dementia Research, University Hospital, LMU Munich, Germany
- Department of Biomedical Engineering, University of Basel, Basel, Switzerland
| | - Andreas Charidimou
- Hemorrhagic Stroke Research Program, J. Philip Kistler Stroke Research Center, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Department of Neurology, Boston Medical Center, Boston University School of Medicine, Boston, MA, USA
| | - Hugues Chabriat
- Department of Neurology, FHU NeuroVasc, Hôpital Lariboisiere, University of Paris, Paris, France
| | - Geert Jan Biessels
- Department of Neurology, UMC Utrecht Brain Center, University Medical Center Utrecht, the Netherlands
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Kolskår KK, Richard G, Alnæs D, Dørum ES, Sanders A, Ulrichsen KM, Sánchez JM, Ihle‐Hansen H, Nordvik JE, Westlye LT. Reliability, sensitivity, and predictive value of fMRI during multiple object tracking as a marker of cognitive training gain in combination with tDCS in stroke survivors. Hum Brain Mapp 2021; 42:1167-1181. [PMID: 33216408 PMCID: PMC7856645 DOI: 10.1002/hbm.25284] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 10/21/2020] [Accepted: 10/27/2020] [Indexed: 11/23/2022] Open
Abstract
Computerized cognitive training (CCT) combined with transcranial direct current stimulation (tDCS) has showed some promise in alleviating cognitive impairments in patients with brain disorders, but the robustness and possible mechanisms are unclear. In this prospective double-blind randomized clinical trial, we investigated the feasibility and effectiveness of combining CCT and tDCS, and tested the predictive value of and training-related changes in fMRI-based brain activation during attentive performance (multiple object tracking) obtained at inclusion, before initiating training, and after the three-weeks intervention in chronic stroke patients (>6 months since hospital admission). Patients were randomized to one of two groups, receiving CCT and either (a) tDCS targeting left dorsolateral prefrontal cortex (1 mA), or (b) sham tDCS, with 40s active stimulation (1 mA) before fade out of the current. Of note, 77 patients were enrolled in the study, 54 completed the cognitive training, and 48 completed all training and MRI sessions. We found significant improvement in performance across all trained tasks, but no additional gain of tDCS. fMRI-based brain activation showed high reliability, and higher cognitive performance was associated with increased tracking-related activation in the dorsal attention network and default mode network as well as anterior cingulate after compared to before the intervention. We found no significant associations between cognitive gain and brain activation measured before training or in the difference in activation after intervention. Combined, these results show significant training effects on trained cognitive tasks in stroke survivors, with no clear evidence of additional gain of concurrent tDCS.
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Affiliation(s)
- Knut K. Kolskår
- NORMENT, Division of Mental Health and AddictionOslo University Hospital & Institute of Clinical Medicine, University of OsloOsloNorway
- Sunnaas Rehabilitation Hospital HTNesoddenNorway
- Department of PsychologyUniversity of OsloOsloNorway
| | - Geneviève Richard
- NORMENT, Division of Mental Health and AddictionOslo University Hospital & Institute of Clinical Medicine, University of OsloOsloNorway
- Sunnaas Rehabilitation Hospital HTNesoddenNorway
- Department of PsychologyUniversity of OsloOsloNorway
| | - Dag Alnæs
- NORMENT, Division of Mental Health and AddictionOslo University Hospital & Institute of Clinical Medicine, University of OsloOsloNorway
- Bjørknes collegeOsloNorway
| | - Erlend S. Dørum
- NORMENT, Division of Mental Health and AddictionOslo University Hospital & Institute of Clinical Medicine, University of OsloOsloNorway
- Sunnaas Rehabilitation Hospital HTNesoddenNorway
- Department of PsychologyUniversity of OsloOsloNorway
| | - Anne‐Marthe Sanders
- NORMENT, Division of Mental Health and AddictionOslo University Hospital & Institute of Clinical Medicine, University of OsloOsloNorway
- Sunnaas Rehabilitation Hospital HTNesoddenNorway
- Department of PsychologyUniversity of OsloOsloNorway
| | - Kristine M. Ulrichsen
- NORMENT, Division of Mental Health and AddictionOslo University Hospital & Institute of Clinical Medicine, University of OsloOsloNorway
- Sunnaas Rehabilitation Hospital HTNesoddenNorway
- Department of PsychologyUniversity of OsloOsloNorway
| | - Jennifer Monereo Sánchez
- NORMENT, Division of Mental Health and AddictionOslo University Hospital & Institute of Clinical Medicine, University of OsloOsloNorway
| | - Hege Ihle‐Hansen
- Department of Geriatric MedicineOslo University HospitalOsloNorway
| | | | - Lars T. Westlye
- NORMENT, Division of Mental Health and AddictionOslo University Hospital & Institute of Clinical Medicine, University of OsloOsloNorway
- Department of PsychologyUniversity of OsloOsloNorway
- KG Jebsen Centre for Neurodevelopmental Disorders, University of OsloOsloNorway
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Abstract
PURPOSE OF REVIEW This article reviews current knowledge on epidemiology, risk factors and causes, diagnostic considerations, management, and prognosis of ischemic stroke in young adults (those 55 years old and younger). RECENT FINDINGS The incidence of ischemic stroke in young adults has been increasing since the 1980s, which has occurred in parallel with increasing prevalence of vascular risk factors and substance abuse among the younger population. Young adults have a considerably wider range of risk factors than older patients, including age-specific factors such as pregnancy/puerperium and oral contraceptive use. Behavioral risk factors such as low physical activity, excess alcohol consumption, and smoking are factors as well. More than 150 identified causes of early-onset ischemic stroke exist, including rare monogenic disorders. Several recent advances have been made in diagnosis and management of stroke in young adults, including molecular characterization of monogenic vasculitis due to deficiency of adenosine deaminase 2 and transcatheter closure of patent foramen ovale for secondary prevention. Compared with the background population of the same age and sex, long-term mortality in patients remains fourfold higher with cardiovascular causes underlying most of the deaths. The cumulative rate of recurrent stroke extends up to 15% at 10 years. Patients with atherosclerosis, high-risk sources of cardioembolism, and small vessel disease underlying their stroke seem to have the worst prognosis regarding survival and recurrent vascular events. Young stroke survivors also often have other adverse outcomes in the long term, including epilepsy, pain, cognitive problems, and depression. SUMMARY Systematic identification of risk factors and causes and the motivation of patients for long-term prevention and lifestyle changes are of utmost importance to improve the prognosis of early-onset ischemic stroke.
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Zhang J, Li Z, Cao X, Zuo L, Wen W, Zhu W, Jiang J, Cheng J, Sachdev P, Liu T, Wang Y. Altered Prefrontal-Basal Ganglia Effective Connectivity in Patients With Poststroke Cognitive Impairment. Front Neurol 2020; 11:577482. [PMID: 33391148 PMCID: PMC7772311 DOI: 10.3389/fneur.2020.577482] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 11/23/2020] [Indexed: 12/14/2022] Open
Abstract
We investigated the association between poststroke cognitive impairment and a specific effective network connectivity in the prefrontal-basal ganglia circuit. The resting-state effective connectivity of this circuit was modeled by employing spectral dynamic causal modeling in 11 poststroke patients with cognitive impairment (PSCI), 8 poststroke patients without cognitive impairment (non-PSCI) at baseline and 3-month follow-up, and 28 healthy controls. Our results showed that different neuronal models of effective connectivity in the prefrontal-basal ganglia circuit were observed among healthy controls, non-PSCI, and PSCI patients. Additional connected paths (extra paths) appeared in the neuronal models of stroke patients compared with healthy controls. Moreover, changes were detected in the extra paths of non-PSCI between baseline and 3-month follow-up poststroke, indicating reorganization in the ipsilesional hemisphere and suggesting potential compensatory changes in the contralesional hemisphere. Furthermore, the connectivity strengths of the extra paths from the contralesional ventral anterior nucleus of thalamus to caudate correlated significantly with cognitive scores in non-PSCI and PSCI patients. These suggest that the neuronal model of effective connectivity of the prefrontal-basal ganglia circuit may be sensitive to stroke-induced cognitive decline, and it could be a biomarker for poststroke cognitive impairment 3 months poststroke. Importantly, contralesional brain regions may play an important role in functional compensation of cognitive decline.
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Affiliation(s)
- Jing Zhang
- School of Biological Science and Medical Engineering, Beihang University, Beijing, China
| | - Zixiao Li
- Beijing TianTan Hospital, Capital Medical University, Beijing, China
| | - Xingxing Cao
- School of Biological Science and Medical Engineering, Beihang University, Beijing, China
| | - Lijun Zuo
- Beijing TianTan Hospital, Capital Medical University, Beijing, China
| | - Wei Wen
- Centre for Healthy Brain Ageing, School of Psychiatry (CHeBA), University of New South Wales, Sydney, NSW, Australia
- Neuropsychiatric Institute, Prince of Wales Hospital, Sydney, NSW, Australia
| | - Wanlin Zhu
- Beijing TianTan Hospital, Capital Medical University, Beijing, China
| | - Jiyang Jiang
- Centre for Healthy Brain Ageing, School of Psychiatry (CHeBA), University of New South Wales, Sydney, NSW, Australia
| | - Jian Cheng
- Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, Beijing, China
| | - Perminder Sachdev
- Centre for Healthy Brain Ageing, School of Psychiatry (CHeBA), University of New South Wales, Sydney, NSW, Australia
- Neuropsychiatric Institute, Prince of Wales Hospital, Sydney, NSW, Australia
| | - Tao Liu
- School of Biological Science and Medical Engineering, Beihang University, Beijing, China
- Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, Beijing, China
- Beijing Advanced Innovation Center for Biomedical Engineering, Beijing, China
| | - Yongjun Wang
- Beijing TianTan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
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46
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Determinants of Long-Term Health-Related Quality of Life in Young Ischemic Stroke Patients. J Stroke Cerebrovasc Dis 2020; 30:105499. [PMID: 33271487 DOI: 10.1016/j.jstrokecerebrovasdis.2020.105499] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 10/22/2020] [Accepted: 11/22/2020] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVES This study aimed to assess long-term, health-related quality of life (HRQOL) in a young ischemic stroke cohort, and to identify factors associated with poor HRQOL. MATERIALS AND METHODS We conducted a survey with ischemic stroke survivors in Estonia aged 18-54 years at the time of stroke, measuring HRQOL with the three-level version of the five-dimension EuroQol (EQ-5D-3L). The control group comprised the participants of the Health Behavior among Estonian Adult Population study. A tobit regression model with a backward stepwise analysis was used to identify factors associated with low EQ-5D-3L utility scores. RESULTS In total, 352 patients with a mean follow-up time from the qualifying event of 5.7 years and 2304 controls were included. The mean EQ-5D-3L utility score in stroke survivors was significantly lower compared with that in the general population (0.71 vs. 0.87, respectively, p<0.001). However, the subgroup with excellent functional outcome had a significantly higher mean EQ-5D-3L utility score compared with non-stroke counterparts (0.91 v 0.87, respectively, p<0.001). The largest differences between stroke survivors and the general population were in the physical domains. Coronary heart disease at the index event, and higher follow-up duration, functional disability, depressive symptoms, recurrent stroke, and not being fully employed at follow-up, were independently associated with lower HRQOL. CONCLUSION Young ischemic stroke survivors have long-term decreased HRQOL, except for those with excellent functional recovery. Our results prioritize motor rehabilitation and highlight the importance of secondary prevention, treatment of depression, and career counselling as potential ways of increasing HRQOL.
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Lugtmeijer S, Lammers NA, de Haan EHF, de Leeuw FE, Kessels RPC. Post-Stroke Working Memory Dysfunction: A Meta-Analysis and Systematic Review. Neuropsychol Rev 2020; 31:202-219. [PMID: 33230717 PMCID: PMC7889582 DOI: 10.1007/s11065-020-09462-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 10/07/2020] [Indexed: 12/16/2022]
Abstract
This review investigates the severity and nature of post-stroke working memory deficits with reference to the multi-component model of working memory. We conducted a systematic search in PubMed up to March 2019 with search terms for stroke and memory. Studies on adult stroke patients, that included a control group, and assessed working memory function, were selected. Effect sizes (Hedges' g) were extracted from 50 studies (in total 3,084 stroke patients) based on the sample size, mean and standard deviation of patients and controls. Performance of stroke patients was compared to healthy controls on low-load (i.e. capacity) and high-load (executively demanding) working memory tasks, grouped by modality (verbal, non-verbal). A separate analysis compared patients in the sub-acute and the chronic stage. Longitudinal studies and effects of lesion location were systematically reviewed. Stroke patients demonstrated significant deficits in working memory with a moderate effect size for both low-load (Hedges' g = -.58 [-.82 to -.43]) and high-load (Hedges' g = -.59 [-.73 to -.45]) tasks. The effect sizes were comparable for verbal and non-verbal material. Systematically reviewing the literature showed that working memory deficits remain prominent in the chronic stage of stroke. Lesions in a widespread fronto-parietal network are associated with working memory deficits. Stroke patients show decrements of moderate magnitude in all subsystems of working memory. This review clearly demonstrates the global nature of the impairment in working memory post-stroke.
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Affiliation(s)
- Selma Lugtmeijer
- University of Amsterdam, Amsterdam, the Netherlands. .,Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, the Netherlands.
| | | | | | - Frank-Erik de Leeuw
- Radboud University Medical Center, Department of Neurology, Nijmegen, the Netherlands
| | - Roy P C Kessels
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, the Netherlands.,Department of Medical Psychology, Radboud University Medical Center, Nijmegen, the Netherlands
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48
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Fruhwirth V, Enzinger C, Fandler-Höfler S, Kneihsl M, Eppinger S, Ropele S, Schmidt R, Gattringer T, Pinter D. Baseline white matter hyperintensities affect the course of cognitive function after small vessel disease-related stroke: a prospective observational study. Eur J Neurol 2020; 28:401-410. [PMID: 33065757 PMCID: PMC7839458 DOI: 10.1111/ene.14593] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 10/13/2020] [Indexed: 02/06/2023]
Abstract
Background and purpose Cognitive impairment is a common sequel of recent small subcortical infarction (RSSI) and might be negatively affected by preexisting cerebral small vessel disease (SVD). We investigated whether the course of cognitive function in patients with RSSI is influenced by the severity of white matter hyperintensities (WMH), an important imaging feature of SVD. Methods Patients with magnetic resonance imaging (MRI)‐proven single RSSI were tested neuropsychologically concerning global cognition, processing speed, attention, and set‐shifting. Deep and periventricular WMH severity was assessed using the Fazekas scale, and total WMH lesion volume was calculated from T1‐weighted MRI images. We compared baseline function and course of cognition 15 months after the acute event in patients with absent, mild, and moderate‐to‐severe WMH. Results The study cohort comprised 82 RSSI patients (mean age: 61 ± 10 years, 23% female). At baseline, 40% had cognitive impairment (1.5 standard deviations below standardized mean), and deficits persisted in one‐third of the sample after 15 months. After age correction, there were no significant differences in set‐shifting between WMH groups at baseline. However, although patients without WMH (deep: p < 0.001, periventricular: p = 0.067) or only mild WMH (deep: p = 0.098, periventricular: p = 0.001) improved in set‐shifting after 15 months, there was no improvement in patients with moderate‐to‐severe WMH (deep: p = 0.980, periventricular: p = 0.816). Baseline total WMH volume (p = 0.002) was the only significant predictor for attention 15 months poststroke. Conclusions This longitudinal study demonstrates that preexisting moderate‐to‐severe WMH negatively affect the restoration of cognitive function after RSSI, suggesting limited functional reserve in patients with preexisting SVD.
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Affiliation(s)
- V Fruhwirth
- Department of Neurology, Medical University of Graz, Graz, Austria.,Research Unit for Neuronal Plasticity and Repair, Medical University of Graz, Graz, Austria
| | - C Enzinger
- Department of Neurology, Medical University of Graz, Graz, Austria.,Research Unit for Neuronal Plasticity and Repair, Medical University of Graz, Graz, Austria.,Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz, Austria
| | - S Fandler-Höfler
- Department of Neurology, Medical University of Graz, Graz, Austria
| | - M Kneihsl
- Department of Neurology, Medical University of Graz, Graz, Austria
| | - S Eppinger
- Department of Neurology, Medical University of Graz, Graz, Austria
| | - S Ropele
- Department of Neurology, Medical University of Graz, Graz, Austria
| | - R Schmidt
- Department of Neurology, Medical University of Graz, Graz, Austria
| | - T Gattringer
- Department of Neurology, Medical University of Graz, Graz, Austria.,Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz, Austria
| | - D Pinter
- Department of Neurology, Medical University of Graz, Graz, Austria.,Research Unit for Neuronal Plasticity and Repair, Medical University of Graz, Graz, Austria
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Lana D, Ugolini F, Giovannini MG. An Overview on the Differential Interplay Among Neurons-Astrocytes-Microglia in CA1 and CA3 Hippocampus in Hypoxia/Ischemia. Front Cell Neurosci 2020; 14:585833. [PMID: 33262692 PMCID: PMC7686560 DOI: 10.3389/fncel.2020.585833] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 10/09/2020] [Indexed: 12/13/2022] Open
Abstract
Neurons have been long regarded as the basic functional cells of the brain, whereas astrocytes and microglia have been regarded only as elements of support. However, proper intercommunication among neurons-astrocytes-microglia is of fundamental importance for the functional organization of the brain. Perturbation in the regulation of brain energy metabolism not only in neurons but also in astrocytes and microglia may be one of the pathophysiological mechanisms of neurodegeneration, especially in hypoxia/ischemia. Glial activation has long been considered detrimental for survival of neurons, but recently it appears that glial responses to an insult are not equal but vary in different brain areas. In this review, we first take into consideration the modifications of the vascular unit of the glymphatic system and glial metabolism in hypoxic conditions. Using the method of triple-labeling fluorescent immunohistochemistry coupled with confocal microscopy (TIC), we recently studied the interplay among neurons, astrocytes, and microglia in chronic brain hypoperfusion. We evaluated the quantitative and morpho-functional alterations of the neuron-astrocyte-microglia triads comparing the hippocampal CA1 area, more vulnerable to ischemia, to the CA3 area, less vulnerable. In these contiguous and interconnected areas, in the same experimental hypoxic conditions, astrocytes and microglia show differential, finely regulated, region-specific reactivities. In both areas, astrocytes and microglia form triad clusters with apoptotic, degenerating neurons. In the neuron-astrocyte-microglia triads, the cell body of a damaged neuron is infiltrated and bisected by branches of astrocyte that create a microscar around it while a microglial cell phagocytoses the damaged neuron. These coordinated actions are consistent with the scavenging and protective activities of microglia. In hypoxia, the neuron-astrocyte-microglia triads are more numerous in CA3 than in CA1, further indicating their protective effects. These data, taken from contiguous and interconnected hippocampal areas, demonstrate that glial response to the same hypoxic insult is not equal but varies significantly. Understanding the differences of glial reactivity is of great interest to explain the differential susceptibility of hippocampal areas to hypoxia/ischemia. Further studies may evidence the differential reactivity of glia in different brain areas, explaining the higher or lower sensitivity of these areas to different insults and whether glia may represent a target for future therapeutic interventions.
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Affiliation(s)
- Daniele Lana
- Department of Health Sciences, Section of Clinical Pharmacology and Oncology, University of Florence, Florence, Italy
| | - Filippo Ugolini
- Department of Health Sciences, Section of Anatomopathology, University of Florence, Florence, Italy
| | - Maria G Giovannini
- Department of Health Sciences, Section of Clinical Pharmacology and Oncology, University of Florence, Florence, Italy
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50
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Freitas-Andrade M, Raman-Nair J, Lacoste B. Structural and Functional Remodeling of the Brain Vasculature Following Stroke. Front Physiol 2020; 11:948. [PMID: 32848875 PMCID: PMC7433746 DOI: 10.3389/fphys.2020.00948] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 07/14/2020] [Indexed: 12/12/2022] Open
Abstract
Maintenance of cerebral blood vessel integrity and regulation of cerebral blood flow ensure proper brain function. The adult human brain represents only a small portion of the body mass, yet about a quarter of the cardiac output is dedicated to energy consumption by brain cells at rest. Due to a low capacity to store energy, brain health is heavily reliant on a steady supply of oxygen and nutrients from the bloodstream, and is thus particularly vulnerable to stroke. Stroke is a leading cause of disability and mortality worldwide. By transiently or permanently limiting tissue perfusion, stroke alters vascular integrity and function, compromising brain homeostasis and leading to widespread consequences from early-onset motor deficits to long-term cognitive decline. While numerous lines of investigation have been undertaken to develop new pharmacological therapies for stroke, only few advances have been made and most clinical trials have failed. Overall, our understanding of the acute and chronic vascular responses to stroke is insufficient, yet a better comprehension of cerebrovascular remodeling following stroke is an essential prerequisite for developing novel therapeutic options. In this review, we present a comprehensive update on post-stroke cerebrovascular remodeling, an important and growing field in neuroscience, by discussing cellular and molecular mechanisms involved, sex differences, limitations of preclinical research design and future directions.
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Affiliation(s)
| | - Joanna Raman-Nair
- Neuroscience Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Baptiste Lacoste
- Neuroscience Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
- Brain and Mind Research Institute, University of Ottawa, Ottawa, ON, Canada
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