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El-Hakim Y, Mani KK, Pickle KA, Akbari Z, Samiya N, Pham C, Salas G, Pilla R, Sohrabji F. Peripheral, but not central, IGF-1 treatment attenuates stroke-induced cognitive impairment in middle-aged female Sprague Dawley rats: The gut as a therapeutic target. Brain Behav Immun 2024; 122:150-166. [PMID: 39142422 DOI: 10.1016/j.bbi.2024.08.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 07/18/2024] [Accepted: 08/08/2024] [Indexed: 08/16/2024] Open
Abstract
Stroke results in immediate sensory or motor disability and increases the risk for long term cognitive-affective impairments. Thus, therapies are urgently needed to improve quality of life for stroke survivors, especially women who are at a greater risk for severe stroke after menopause. Most current research on stroke therapies target the central nervous system; however, stroke also impacts peripheral organ systems. Our studies using acyclic (estrogen-deficient) middle aged female Sprague Dawley rats show that this group not only displays worse outcomes after stroke as compared to adult females, but also has lower levels of the neuroprotective peptide Insulin-like Growth Factor (IGF1) in circulation. Intracerebroventricular (ICV) administration of IGF1 to this group decreases infarct volume and improves sensory motor performance in the acute phase. In this study, we show that, despite this neuroprotection, ICV-IGF1 did not reduce peripheral inflammation or improve post stroke cognitive impairment in the chronic phase. In view of the evidence that stroke induces rapid gut dysfunction, we tested whether systemic delivery of IGF1 (intraperitoneal, IP) would promote gut health and consequently improve long-term behavioral outcomes. Surprisingly, while IP-IGF1, delivered 4 h and 24 h after ischemic stroke, did not reduce infarct volume or acute sensory motor impairment, it significantly attenuated circulating levels of pro-inflammatory cytokines, and attenuated stroke-induced cognitive impairment. In addition, IP-IGF1 treatment reduced gut dysmorphology and gut dysbiosis. Our data support the conclusion that therapeutics targeting peripheral targets are critical for long-term stroke recovery, and that gut repair is a novel therapeutic target to improve brain health in aging females.
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Affiliation(s)
- Yumna El-Hakim
- Women's Health in Neuroscience Program, Department of Neuroscience and Experimental Therapeutics, College of Medicine, Texas A&M University-Health Science Center, Bryan TX-77807 USA
| | - Kathiresh Kumar Mani
- Women's Health in Neuroscience Program, Department of Neuroscience and Experimental Therapeutics, College of Medicine, Texas A&M University-Health Science Center, Bryan TX-77807 USA
| | - Kaylin A Pickle
- Women's Health in Neuroscience Program, Department of Neuroscience and Experimental Therapeutics, College of Medicine, Texas A&M University-Health Science Center, Bryan TX-77807 USA
| | - Zara Akbari
- Women's Health in Neuroscience Program, Department of Neuroscience and Experimental Therapeutics, College of Medicine, Texas A&M University-Health Science Center, Bryan TX-77807 USA
| | - Nadia Samiya
- Women's Health in Neuroscience Program, Department of Neuroscience and Experimental Therapeutics, College of Medicine, Texas A&M University-Health Science Center, Bryan TX-77807 USA
| | - Chloe Pham
- Women's Health in Neuroscience Program, Department of Neuroscience and Experimental Therapeutics, College of Medicine, Texas A&M University-Health Science Center, Bryan TX-77807 USA
| | - Gianna Salas
- Women's Health in Neuroscience Program, Department of Neuroscience and Experimental Therapeutics, College of Medicine, Texas A&M University-Health Science Center, Bryan TX-77807 USA
| | - Rachel Pilla
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine Texas A&M University, College Station, TX Brazos
| | - Farida Sohrabji
- Women's Health in Neuroscience Program, Department of Neuroscience and Experimental Therapeutics, College of Medicine, Texas A&M University-Health Science Center, Bryan TX-77807 USA.
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Roberts R, Vohora R, Demeyere N. Understanding the role of illness perceptions in the relationship between cognitive and emotional difficulties after stroke. Neuropsychol Rehabil 2024:1-19. [PMID: 39205633 DOI: 10.1080/09602011.2024.2387376] [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: 07/07/2023] [Accepted: 07/26/2024] [Indexed: 09/04/2024]
Abstract
ABSTRACTEmotional difficulties are common after stroke and up to one third of stroke-survivors develop post-stroke depression. Psychological distress in this population remains poorly understood, despite high prevalence and secondary implications. One established predictor of depressive symptoms after stroke is cognitive impairment, however, the mechanism underlying this relationship is unclear. This research investigated the potential role of stroke-related illness appraisals as a mediating factor to this known association. Seventy-seven participants, aged 45-94, were consecutively recruited from inpatient stroke units in Oxfordshire over 15-months and completed assessments of mood, cognition and illness appraisals, which were analyzed cross-sectionally. As expected, cognitive impairment significantly predicted depressive symptoms. Importantly, this relationship was shown to be mediated by perceptions of threat and control. Higher levels of cognitive impairment were significantly associated with lower perceived control and higher perceived threat, which partially explained the relationship between cognitive impairment and depressive symptoms. Perceptions of illness coherence were predictive of depressive symptoms but not associated with degree of cognitive impairment. This research has implications for the management of cognitive impairment in the early stages after stroke and suggests that illness appraisals may be an important intervention target for reducing depressive symptoms in patients with post-stroke cognitive impairments.
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Affiliation(s)
- Rebecca Roberts
- Oxford Institute of Clinical Psychology Training and Research, Isis Education Centre, Warneford Hospital, Oxford, UK
| | - Reena Vohora
- Oxford Institute of Clinical Psychology Training and Research, Isis Education Centre, Warneford Hospital, Oxford, UK
| | - Nele Demeyere
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
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Sahely A, Sintler C, Soundy A, Rosewilliam S. Feasibility of a self-management intervention to improve mobility in the community after stroke (SIMS): A mixed-methods pilot study. PLoS One 2024; 19:e0286611. [PMID: 39137233 PMCID: PMC11321569 DOI: 10.1371/journal.pone.0286611] [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: 06/05/2023] [Accepted: 05/12/2024] [Indexed: 08/15/2024] Open
Abstract
OBJECTIVE To evaluate the feasibility of implementing a self-management intervention to improve mobility in the community for stroke survivors. METHODS A two-phase sequential mixed methods design was used (a pilot randomised controlled trial and focus groups). Participants were adult stroke survivors within six months post discharge from hospital with functional and cognitive capacity for self-management. The intervention included education sessions, goal setting and action planning, group sessions, self-monitoring and follow up. The control group received usual care and both groups enrolled for 3 months in the study. Feasibility outcomes (recruitment and retention rates, randomisation and blinding, adherence to the intervention, collection of outcome measures, and the fidelity and acceptability of the intervention). Participants assessed at baseline, 3 months and 6 months for functional mobility and walking, self-efficacy, goal attainment, cognitive ability, and general health. A descriptive analysis was done for quantitative data and content analysis for the qualitative data. Findings of quantitative and qualitative data were integrated to present the final results of the study. RESULTS Twenty-four participants were recruited and randomised into two groups (12 each). It was feasible to recruit from hospital and community and to deliver the intervention remotely. Randomisation and blinding were successful. Participants were retained (83%) at 3 months and (79.2%) at 6 months assessments. Adherence to the intervention varied due to multiple factors. Focus groups discussed participants' motivations for joining the programme, their perspectives on the intervention (fidelity and acceptability) and methodology, perceived improvements in mobility, facilitators and challenges for self-management, and suggestions for improvement. CONCLUSION The self-management intervention seems feasible for implementation for stroke survivors in the community. Participants appreciated the support provided and perceived improvement in their mobility. The study was not powered enough to draw a conclusion about the efficacy of the program and a future full-scale study is warranted.
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Affiliation(s)
- Ahmad Sahely
- Physical Therapy Department, Collage of Applied Health Sciences, Jazan University, Jazan, Saudi Arabia
| | - Carron Sintler
- University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital Birmingham, Birmingham, United Kingdom
| | - Andrew Soundy
- School of Sports, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Sheeba Rosewilliam
- School of Sports, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham, United Kingdom
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Huber SK, Knols RH, Held JPO, Betschart M, de Bruin ED. PEMOCS: Evaluating the effects of a concept-guided, PErsonalised, MOtor-Cognitive exergame training on cognitive functions and gait in chronic Stroke-study protocol for a randomised controlled trial. Trials 2024; 25:451. [PMID: 38965612 PMCID: PMC11223407 DOI: 10.1186/s13063-024-08283-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 06/21/2024] [Indexed: 07/06/2024] Open
Abstract
BACKGROUND Many stroke survivors remain with residual cognitive and motor impairments despite receiving timely acute and sub-acute rehabilitation. This indicates that rehabilitation following stroke should be continuous to meet the needs of individual stroke patients. Both cognitive and motor functions are essential for mastering daily life and, therefore, should be aimed at with rehabilitation. Exergames, motor-cognitive exercises performed using video games, are an auspicious method to train both motor and cognitive functions and at the same time may foster the long-term motivation for training. This study aims to assess the effect of concept-guided, personalised, motor-cognitive exergame training on cognitive and motor functions in chronic stroke survivors. METHODS This study is a single-blinded, randomised controlled trial. Assessments are performed at baseline, after a 12-week intervention, and at a 24-weeks follow-up. Chronic stroke patients (≥ 18 years old, ≥ 6 months post-stroke) able to stand for 3 min, independently walk 10 m, follow a two-stage command, and without other neurological diseases apart from cognitive deficits or dementia are included. Participants in the intervention group perform the exergame training twice per week for 30 (beginning) up to 40 (end) minutes additionally to their usual care programme. Participants in the control group receive usual care without additional intervention(s). Global cognitive functioning (total Montreal Cognitive Assessment (MoCA) score) is the primary outcome. Secondary outcomes include health-related quality of life, specific cognitive functions, single- and dual-task mobility, and spatiotemporal gait parameters. The target sample size for this trial is 38 participants. Linear mixed models with the post-outcome scores as dependent variables and group and time as fixed effects will be performed for analysis. DISCUSSION Superior improvements in global cognitive functioning and in the abovementioned secondary outcomes in the intervention group compared to the control group are hypothesised. The results of this study may guide future design of long-term rehabilitation interventions after stroke. TRIAL REGISTRATION ClinicalTrials.gov (NCT05524727). Registered on September 1, 2022.
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Affiliation(s)
- S K Huber
- Physiotherapy Occupational Therapy Research Center, Directorate of Research and Education, University Hospital Zurich, Zurich, Switzerland.
- Motor Control and Learning Group, Institute of Human Movement Sciences and Sport, Department of Health Sciences and Technology, ETH Zurich, Zurich, Switzerland.
| | - R H Knols
- Physiotherapy Occupational Therapy Research Center, Directorate of Research and Education, University Hospital Zurich, Zurich, Switzerland
- Motor Control and Learning Group, Institute of Human Movement Sciences and Sport, Department of Health Sciences and Technology, ETH Zurich, Zurich, Switzerland
| | - J P O Held
- Rehabilitation Center Triemli Zurich, Valens Clinics, Zurich, Switzerland
| | - M Betschart
- Department of Health, OST - Eastern Swiss University of Applied Sciences, St. Gallen, Switzerland
- Institute of Therapy and Rehabilitation, Kantonsspital Winterthur, Winterthur, Switzerland
| | - E D de Bruin
- Motor Control and Learning Group, Institute of Human Movement Sciences and Sport, Department of Health Sciences and Technology, ETH Zurich, Zurich, Switzerland
- Department of Health, OST - Eastern Swiss University of Applied Sciences, St. Gallen, Switzerland
- Department of Neurobiology, Care Sciences and Society, Division of Physiotherapy, Karolinska Institutet, Stockholm, Sweden
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van der Veen R, Königs M, Bakker S, van Iperen A, Peerdeman S, Bet PM, Oosterlaan J. Pharmacotherapy to Improve Cognitive Functioning After Acquired Brain Injury: A Meta-Analysis and Meta-Regression. Clin Pharmacol Ther 2024; 115:971-987. [PMID: 38294196 DOI: 10.1002/cpt.3186] [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: 09/26/2023] [Accepted: 01/10/2024] [Indexed: 02/01/2024]
Abstract
Cognitive impairments, common sequelae of acquired brain injury (ABI), significantly affect rehabilitation and quality of life. Currently, there is no solid evidence-base for pharmacotherapy to improve cognitive functioning after ABI, nevertheless off-label use is widely applied in clinical practice. This meta-analysis and meta-regression aims to quantitatively aggregate the available evidence for the effects of pharmacological agents used in the treatment of cognitive impairments following ABI. We conducted a comprehensive search of Embase, Medline Ovid, and Cochrane Controlled Trials Register databases for randomized controlled and crossover trials. Meta-analytic effects were calculated for each pharmaceutical agent and targeted neuromodulator system. Cognitive outcome measures were aggregated across cognitive domains. Of 8,216 articles, 41 studies (4,434 patients) were included. The noradrenergic agent methylphenidate showed a small, significant positive effect on cognitive functioning in patients with traumatic brain injury (TBI; k = 14, d = 0.34, 95% confidence interval: 0.12-0.56, P = 0.003). Specifically, methylphenidate was found to improve cognitive functions related to executive memory, baseline speed, inhibitory control, and variability in responding. The cholinergic drug donepezil demonstrated a large effect size, albeit based on a limited number of studies (k = 3, d = 1.68, P = 0.03). No significant effects were observed for other agents. Additionally, meta-regression analysis did not identify significant sources of heterogeneity in treatment response. Our meta-analysis supports the use of methylphenidate for enhancing cognitive functioning in patients with TBI. Although donepezil shows potential, it warrants further research. These results could guide clinical decision making, inform practice guidelines, and direct future pharmacotherapeutic research in ABI.
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Affiliation(s)
- Ruud van der Veen
- Follow Me Program & Emma Neuroscience Group, Department of Pediatrics, Emma Children's Hospital, Amsterdam UMC Location University of Amsterdam, Amsterdam Reproduction and Development Research Institute, Amsterdam, The Netherlands
- Daan Theeuwes Center for Intensive Neurorehabilitation, Woerden, The Netherlands
| | - Marsh Königs
- Follow Me Program & Emma Neuroscience Group, Department of Pediatrics, Emma Children's Hospital, Amsterdam UMC Location University of Amsterdam, Amsterdam Reproduction and Development Research Institute, Amsterdam, The Netherlands
- Daan Theeuwes Center for Intensive Neurorehabilitation, Woerden, The Netherlands
| | - Simon Bakker
- Reade, Amsterdam Rehabilitation Research Centre, Amsterdam, The Netherlands
| | - Andries van Iperen
- Daan Theeuwes Center for Intensive Neurorehabilitation, Woerden, The Netherlands
| | - Saskia Peerdeman
- Department of Neurosurgery, Amsterdam UMC Location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Pierre M Bet
- Department of Clinical Pharmacology and Pharmacy, Amsterdam UMC Location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Jaap Oosterlaan
- Follow Me Program & Emma Neuroscience Group, Department of Pediatrics, Emma Children's Hospital, Amsterdam UMC Location University of Amsterdam, Amsterdam Reproduction and Development Research Institute, Amsterdam, The Netherlands
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Alphonce B, Meda J, Nyundo A. Incidence and predictors of post-stroke cognitive impairment among patients admitted with first stroke at tertiary hospitals in Dodoma, Tanzania: A prospective cohort study. PLoS One 2024; 19:e0287952. [PMID: 38598466 PMCID: PMC11006170 DOI: 10.1371/journal.pone.0287952] [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: 06/18/2023] [Accepted: 02/01/2024] [Indexed: 04/12/2024] Open
Abstract
INTRODUCTION Stroke survivors develop cognitive impairment, which significantly impacts their quality of life, their families, and the community as a whole but not given attention. This study aims to determine the incidence and predictors of post-stroke cognitive impairment (PSCI) among adult stroke patients admitted to a tertiary hospital in Dodoma, Tanzania. METHODOLOGY A prospective cohort study was conducted at tertiary hospitals in the Dodoma region, central Tanzania. A sample size of 158 participants with the first stroke confirmed by CT/MRI brain aged ≥ 18 years met the criteria. At baseline, social-demographic, cardiovascular risks and stroke characteristics were acquired, and then at 30 days, participants were evaluated for cognitive functioning using Montreal Cognitive Assessment (MoCA). Key confounders for cognitive impairment, such as depression and apathy, were evaluated using the Personal Health Questionnaire (PHQ-9) and Apathy Evaluation Scale (AES), respectively. Descriptive statistics were used to summarise data; continuous data were reported as Mean (SD) or Median (IQR), and categorical data were summarised using proportions and frequencies. Univariate and multivariable logistic regression analysis was used to determine predictors of PSCI. RESULTS The median age of the 158 participants was 58.7 years; 57.6% of them were female, and 80.4% of them met the required criteria for post-stroke cognitive impairment. After multivariable logistic regression, left hemisphere stroke (AOR: 5.798, CI: 1.030-32.623, p = 0.046), a unit cm3 increase in infarct volume (AOR: 1.064, 95% CI: 1.018-1.113, p = 0.007), and apathy symptoms (AOR: 12.259, CI: 1.112-89.173, p = 0.041) had a significant association with PSCI. CONCLUSION The study revealed a significant prevalence of PSCI; early intervention targeting stroke survivors at risk may improve their outcomes. Future research in the field will serve to dictate policies and initiatives.
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Affiliation(s)
- Baraka Alphonce
- Department of Internal Medicine, School of Medicine & Dentistry, The University Dodoma, Dodoma, Tanzania
- Department of Internal Medicine, The Benjamin Mkapa Hospital, Dodoma, Tanzania
| | - John Meda
- Department of Internal Medicine, School of Medicine & Dentistry, The University Dodoma, Dodoma, Tanzania
- Department of Cardiology, The Benjamin Mkapa Hospital, Dodoma, Tanzania
| | - Azan Nyundo
- Department of Internal Medicine, The Benjamin Mkapa Hospital, Dodoma, Tanzania
- Department of Psychiatry and Mental Health, School of Medicine, The University Dodoma, Dodoma, Tanzania
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Ademoyegun AB, Ogundiran O, Kayode AJ, Olaosun AO, Awotidebe TO, Mbada CE. Hearing loss, gait and balance impairments and falls among individuals with sub-acute stroke: A comparative cross-sectional study. Heliyon 2024; 10:e26880. [PMID: 38486770 PMCID: PMC10937590 DOI: 10.1016/j.heliyon.2024.e26880] [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: 10/05/2023] [Revised: 02/19/2024] [Accepted: 02/21/2024] [Indexed: 03/17/2024] Open
Abstract
Background The impact of hearing loss in stroke is less explored. This study aimed to compare hearing loss in patients with sub-acute stroke with healthy controls and evaluate its association with gait and balance impairments and falls. Methods This study involved 78 ambulant sub-acute stroke patients and 78 age-sex-matched controls. Hearing loss was assessed with pure tone average, while gait and balance impairments were assessed with the Timed Up and Go test, Berg Balance Scale, Functional Gait Assessment and 10-m walk test (gait speed). Fall occurrence was evaluated by a self-report questionnaire. Results The prevalence of hearing loss (pure tone average of >25 dB) was higher in stroke patients than in controls (64.1% vs. 35.9%; p < 0.001). The mean pure tone average of stroke patients showed a significant positive correlation with Timed Up and Go test (r = 0.357; p = 0.001) and fall occurrence (r = 0.253; p = 0.025), and a significant negative correlation with Berg Balance Scale (r = -0.299; p = 0.008) and Functional Gait Assessment (r = -0.452; p < 0.001). There was a non-significant negative correlation with gait speed (r = -0.166; p = 0.147). Multiple regression showed that mean pure tone average was associated with Timed Up and Go test (B = 0.096; 95%CI: 0.010, 0.183) and Functional Gait Assessment (B = -0.087; 95%CI: -0.157, -0.017), but not with gait speed (B = -0.003; 95%CI: -0.007, 0.001) and Berg Balance Scale (B = -0.058; 95%CI: -0.165, 0.049). Conclusion Hearing loss is more prevalent among patients with sub-acute stroke compared with age-sex-matched controls. Hearing loss is also associated with gait and balance impairments and falls among sub-acute stroke patients. We recommend that hearing screening and rehabilitation be incorporated into post-stroke rehabilitation programmes as part of strategies to improve balance and gait and reduce or prevent falls.
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Affiliation(s)
- Adekola B. Ademoyegun
- Department of Physiotherapy, Osun State University Teaching Hospital, Osogbo, Nigeria
- Department of Medical Rehabilitation, Obafemi Awolowo University, Ile-Ife, Nigeria
| | - Olawale Ogundiran
- Department of Speech, Language and Hearing Sciences, University of Health and Allied Sciences, Ho, Volta Region, Ghana
| | - Adepoju J. Kayode
- Department of Ear, Nose and Throat, Osun State University Teaching Hospital, Osogbo, Nigeria
| | - Adedayo O. Olaosun
- Department of Otorhinolaryngology, Ladoke Akintola University of Technology, Ogbomoso, Nigeria
| | - Taofeek O. Awotidebe
- Department of Medical Rehabilitation, Obafemi Awolowo University, Ile-Ife, Nigeria
| | - Chidozie E. Mbada
- Department of Health Professions, Faculty of Health and Education, Manchester Metropolitan University, United Kingdom
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Ward J, Foley G, Horgan F. Occupational therapists' assessment and reporting of functional cognition in stroke care. Disabil Rehabil 2024:1-10. [PMID: 38299538 DOI: 10.1080/09638288.2024.2310760] [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: 06/06/2023] [Accepted: 01/20/2024] [Indexed: 02/02/2024]
Abstract
PURPOSE To investigate how functional cognition of people post-stroke is evaluated and reported by occupational therapists in Ireland. Functional cognition refers to the use and integration of cognitive skills for daily function. METHODS This study used a qualitative design. Six focus groups and one individual interview were conducted with 20 occupational therapists purposively sampled for variation across different clinical grades. Data were analysed according to the Braun and Clark thematic analysis framework. RESULTS Participants felt that assessment of functional cognition was an integral feature of occupational therapy assessment in stroke care but acknowledged that terminology used by occupational therapists for functional cognition was inconsistent. Non-standardised observational assessment was routinely used by participants. Challenges were reported with respect to written documentation of non-standardised observations. Participants reported that use of standardised cognitive assessments required considered clinical reasoning before administration. Standardised performance-based assessments were not widely implemented by participants. CONCLUSION Occupational therapists in Ireland reported a multi-component assessment process to evaluate functional cognition post-stroke. Establishing practice guidelines for the assessment of functional cognition may be of benefit to occupational therapists working in stroke care. Further research is needed to quantify procedures in this assessment process to account for variation in practice.
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Affiliation(s)
- Jana Ward
- Occupational Therapy Department, Galway University Hospital, Galway, Ireland
- School of Physiotherapy, Royal College of Surgeons in Ireland (RCSI), University of Medicine and Health Sciences, Ireland
| | - Geraldine Foley
- Discipline of Occupational Therapy, School of Medicine, Trinity College Dublin, Ireland
| | - Frances Horgan
- School of Physiotherapy, Royal College of Surgeons in Ireland (RCSI), University of Medicine and Health Sciences, Ireland
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Gupta S, Khan J, Ghosh S. Molecular mechanism of cognitive impairment associated with Parkinson's disease: A stroke perspective. Life Sci 2024; 337:122358. [PMID: 38128756 DOI: 10.1016/j.lfs.2023.122358] [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: 06/20/2023] [Revised: 12/03/2023] [Accepted: 12/13/2023] [Indexed: 12/23/2023]
Abstract
Parkinson's disease (PD) is a common neurological illness that causes several motor and non-motor symptoms, most characteristically limb tremors and bradykinesia. PD is a slowly worsening disease that arises due to progressive neurodegeneration of specific areas of the brain, especially the substantia nigra of the midbrain. Even though PD has continuously been linked to a higher mortality risk in numerous epidemiologic studies, there have been significant discoveries regarding the connection between PD and stroke. The incidence of strokes such as cerebral infarction and hemorrhage is substantially associated with the development of PD. Moreover, cognitive impairments, primarily dementia, have been associated with stroke and PD. However, the underlying molecular mechanism of this phenomenon is still obscure. This concise review focuses on the relationship between stroke and PD, emphasizing the molecular mechanism of cognition deficit and memory loss evident in PD and stroke. Furthermore, we are also highlighting some potential drug molecules that can target both PD and stroke.
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Affiliation(s)
- Sanju Gupta
- Department of Bioscience & Bioengineering, Indian Institute of Technology Jodhpur (IIT-Jodhpur), Rajasthan 342037, India
| | - Juhee Khan
- Department of Bioscience & Bioengineering, Indian Institute of Technology Jodhpur (IIT-Jodhpur), Rajasthan 342037, India
| | - Surajit Ghosh
- Department of Bioscience & Bioengineering, Indian Institute of Technology Jodhpur (IIT-Jodhpur), Rajasthan 342037, India.
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Chau JPC, Lo SHS, Zhao J, Choi KC, Butt L, Thompson DR. Apathy mediates the association between age and cognition after stroke. Disabil Rehabil 2023:1-6. [PMID: 38153242 DOI: 10.1080/09638288.2023.2297921] [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: 08/27/2023] [Accepted: 12/16/2023] [Indexed: 12/29/2023]
Abstract
PURPOSE To examine if the association between age and post-stroke cognition is mediated by apathy. METHODS A cross-sectional investigation was carried out with 389 stroke survivors and informants. Data were collected through the Apathy Evaluation Scale (AES-C) and the Informant Questionnaire for Cognitive Decline in the Elderly (IQCODE). Bivariate analyses were conducted between the IQCODE total score and each of the demographic and clinical characteristics as well as apathy, while Baron and Kenny's 4-step approach was used to examine the mediating effect of apathy on the association between age and post-stroke cognition. RESULTS Participants were aged 64.3 years on average, with a mean IQCODE score of 97.6 (SD: 14.8) and a mean AES-C score of 41.3 (SD: 8.0). IQCODE scores were positively correlated with age (r = 0.32, p < 0.001) and apathy (r = 0.54, p < 0.001). Apathy contributed to 24% of the total effect of age on post-stroke cognition, exerting a significant mediating effect on the relationship between age and post-stroke cognition. CONCLUSIONS Apathy may have a significant impact on the cognitive health of stroke survivors. Therefore, the early identification of apathy symptoms could facilitate consideration of potential interventions, such as multisensory and cognitive stimulation, designed to improve cognitive outcomes in this population.
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Affiliation(s)
- Janita Pak Chun Chau
- Nethersole School of Nursing, The Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - Suzanne Hoi Shan Lo
- Nethersole School of Nursing, The Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - Jie Zhao
- School of Nursing, Yunnan University of Traditional Chinese Medicine, Kunming, Yunnan, China
| | - Kai Chow Choi
- Nethersole School of Nursing, The Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - Laveeza Butt
- Nethersole School of Nursing, The Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - David R Thompson
- School of Nursing and Midwifery, Queen's University Belfast, Belfast, UK
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11
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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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Davies A, Rogers JM, Baker K, Li L, Llerena J, das Nair R, Wong D. Combined Cognitive and Psychological Interventions Improve Meaningful Outcomes after Acquired Brain Injury: A Systematic Review and Meta-Analysis. Neuropsychol Rev 2023:10.1007/s11065-023-09625-z. [PMID: 37955821 DOI: 10.1007/s11065-023-09625-z] [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] [Received: 01/23/2023] [Accepted: 10/16/2023] [Indexed: 11/14/2023]
Abstract
Interventions addressing cognitive and emotional difficulties after acquired brain injury (ABI) often focus on specific impairments in cognition or mood. These interventions can be effective at addressing their specific target, but do not routinely translate to improved activity and participation outcomes. Approaches that combine cognitive and psychological rehabilitation are increasingly popular; however, to date, there have been no systematic evaluations of their efficacy. We conducted a systematic review of five databases, searching for randomised controlled trials of adults with diagnoses of non-progressive ABI at least 1-month post injury, in receipt of interventions that combined cognitive and psychological components compared to any control. Screening and data extraction were evaluated by two independent reviewers using a standardised protocol. Effect sizes were calculated using Hedge's g and estimated using a random-effects model. Risk of bias was assessed using the PEDro-P rating system, and quality of evidence evaluated using the grading of recommendation, assessment, development and evaluation (GRADE) approach. Thirteen studies were included in the meta-analysis (n = 684). There was an overall small-to-medium effect (g = 0.42) for combined interventions compared with controls, with gains maintained at 6-month follow-up. Improvements were observed at the level of impairment, activity, participation and quality of life. GRADE ratings and analyses investigating sensitivity, heterogeneity and publication bias indicated that these effects were robust. No a priori variables moderated these effects. Overall, this review provides strong evidence that combined cognitive and psychological interventions create meaningful change in the lives of people with ABI.
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Affiliation(s)
- Alexandra Davies
- School of Psychology & Public Health, La Trobe University, Bundoora, VIC, 3086, Australia
| | - Jeffrey M Rogers
- Faculty of Health Sciences, University of Sydney, Camperdown, NSW, 2006, Australia
| | - Katharine Baker
- School of Psychology & Public Health, La Trobe University, Bundoora, VIC, 3086, Australia
| | - Lily Li
- School of Psychology & Public Health, La Trobe University, Bundoora, VIC, 3086, Australia
| | - Joshua Llerena
- School of Psychology & Public Health, La Trobe University, Bundoora, VIC, 3086, Australia
| | - Roshan das Nair
- School of Medicine, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
- Health Research, SINTEF Digital, Dept. of Health Research, Torgaarden, P.O. Box 4760, Trondheim, NO-7465, Norway
| | - Dana Wong
- School of Psychology & Public Health, La Trobe University, Bundoora, VIC, 3086, Australia.
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O' Donoghue M, Boland P, Taylor S, Hennessy E, Murphy E, Leahy S, McManus J, Lisiecka D, Purtill H, Galvin R, Hayes S. OptiCogs: feasibility of a multicomponent intervention to rehabilitate people with cognitive impairment post-stroke. Pilot Feasibility Stud 2023; 9:178. [PMID: 37853485 PMCID: PMC10583340 DOI: 10.1186/s40814-023-01300-7] [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: 09/07/2022] [Accepted: 04/10/2023] [Indexed: 10/20/2023] Open
Abstract
BACKGROUND Stroke is a leading cause of death and disability worldwide. Despite the prevalence and associated burden of cognitive impairment post-stroke, there is uncertainty regarding optimal cognitive rehabilitation for people post-stroke. This study aimed to assess whether a multicomponent intervention, called OptiCogs, is feasible, acceptable, and safe for people with cognitive impairment post-stroke. A secondary aim was to explore changes in cognitive function, fatigue, quality of life, physical function, and occupational performance, from pre-intervention to post-intervention. METHODS A feasibility study was conducted where people post-stroke with cognitive impairment enrolled in a 6-week multicomponent intervention. The primary outcomes recorded included response rate, recruitment rate, retention rate, adherence to the intervention protocol, adverse events, and acceptability of the intervention to people post-stroke. Secondary outcomes included (i) change in cognitive functioning using the Addenbrooke's Cognitive Examination III, (ii) fatigue using the Fatigue Severity scale, (iii) quality of life using the Stroke Specific Quality of Life scale (iv) physical function using the patient-reported outcomes measurement information system, and (v) patient-reported occupational performance using the Canadian Occupational Performance Measure. The Consolidated Standards of Reporting Trials extension reporting guidelines were followed, for pilot and feasibility studies, to standardize the conduct and reporting of this study. RESULTS The response rate was 10.9%. Nine eligible participants were enrolled during the 4-month recruitment period, with eight participants completing the entire 6-week intervention, as well as the pre- and post-intervention outcome measures. There were no reported adverse events. Participants were satisfied with the intervention and found it acceptable overall. Results of the secondary outcomes were promising for cognitive function (ACE III, pre: 63.3 ± 23.9 to post: 69 ± 24.6), fatigue (FSS, pre: 52.5 ± 7.3 to post: 45.6 ± 7.2), quality of life (SSQoL, pre: 131.0 ± 26.3 to post: 169.9 ± 15.3), physical function (PROMIS-PF, pre: 15.5 ± 6.3 to post: 15.8 ± 5.3), and occupational performance (COPM performance, pre: 9.3 ± 2.3 to post: 22.9 ± 4.2) and COPM satisfaction, pre: 9.9 ± 2.1 to post: 22.7 ± 3.5). CONCLUSION Preliminary results suggest low-modest recruitment and high retention rates for the OptiCogs intervention. Changes in cognitive function, fatigue, quality of life, and self-reported occupational performance show improvement from pre- to post-intervention. These potential benefits require further testing in a larger pilot trial. TRIAL REGISTRATION NCT05414539.
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Affiliation(s)
- Mairéad O' Donoghue
- School of Allied Health, Faculty of Education and Health Sciences, Ageing Research Centre, Health Research Institute, University of Limerick, Limerick, V94 T9PX, Ireland.
| | - Pauline Boland
- School of Allied Health, Faculty of Education and Health Sciences, Ageing Research Centre, Health Research Institute, University of Limerick, Limerick, V94 T9PX, Ireland
| | - Sinead Taylor
- Acute Stroke and Neurology Services, UL Hospitals Group, University Hospital Limerick, Limerick, Ireland
| | - Edel Hennessy
- Early Supported Discharge, UL Hospitals Group, University Hospital Limerick, Limerick, Ireland
| | - Eva Murphy
- Early Supported Discharge, UL Hospitals Group, University Hospital Limerick, Limerick, Ireland
| | - Siobhan Leahy
- Department of Sport, Exercise and Nutrition, School of Science and Computing, Mayo Institute of Technology, Dublin Road, GalwayGalway, Ireland
| | - John McManus
- Acute Stroke and Neurology Services, UL Hospitals Group, University Hospital Limerick, Limerick, Ireland
| | - Dominika Lisiecka
- Department of Nursing and Healthcare Sciences, School of Health and Social Sciences, Munster Technological University Kerry Campus, Kerry, Ireland
| | - Helen Purtill
- Department of Mathematics and Statistics, University of Limerick, Limerick, Ireland
| | - Rose Galvin
- School of Allied Health, Faculty of Education and Health Sciences, Ageing Research Centre, Health Research Institute, University of Limerick, Limerick, V94 T9PX, Ireland
| | - Sara Hayes
- School of Allied Health, Faculty of Education and Health Sciences, Ageing Research Centre, Health Research Institute, University of Limerick, Limerick, V94 T9PX, Ireland
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14
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Wang G, Tang X, Zhao F, Qin X, Wang F, Yang D, Zhu H, Chen X. Total saponins from Trillium tschonoskii Maxim promote neurological recovery in model rats with post-stroke cognitive impairment. Front Pharmacol 2023; 14:1255560. [PMID: 37745057 PMCID: PMC10513410 DOI: 10.3389/fphar.2023.1255560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Accepted: 08/21/2023] [Indexed: 09/26/2023] Open
Abstract
Total saponins from Trillium tschonoskii Maxim (TSTT), a bioactive component of local natural herbs in the Enshi area, China, have been demonstrated to have functions of restoring cognitive capacity and promoting axonal regeneration post-stroke, but the mechanism of this process remains unclear. The hippocampus is a critical tissue for controlling learning and memory capacity, and the sonic hedgehog (Shh) signaling pathway plays a major role in the patterning and synaptic plasticity of hippocampal neural circuits. Therefore, we aimed to investigate whether TSTT could restore learning and cognitive functions by modulating the Shh pathway in rats with post-stroke cognitive impairment (PSCI). The ischemia model was established by permanent middle cerebral artery occlusion (MCAO) in 100 Sprague-Dawley (SD) rats, and the model rats were administered using TSTT (100 mg/kg) or donepezil hydrochloride as the positive control (daily 0.45 mg/kg, DON) for 4 weeks after the operation. As assessed by the Morris water maze test, the cognitive function of PSCI rats was significantly improved upon TSTT treatment. Meanwhile, the cerebral infarct volume reduced with TSTT, as shown by HE and TTC staining, and the number of Nissl bodies and dendritic spine density were significantly increased, as shown by Nissl and Golgi staining. In addition, TSTT upregulated PSD-95, SYN, and GAP-43, and inhibited neuronal apoptosis, as evidenced by increased Bcl-2 levels along with decreased Bax and caspase-3 expression. TSTT could also significantly upregulate Shh, Ptch1, Smo, and Gli1 proteins, indicating the activation of the Shh signaling pathway. Therefore, TSTT can protect PSCI rats by inhibiting apoptosis and promoting neuronal synaptic remodeling. The Shh pathway is also involved.
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Affiliation(s)
- Gang Wang
- Hubei Provincial Clinical Medical Research Center for Nephropathy, Minda Hospital of Hubei Minzu University, Enshi, China
- Health Science Center, Hubei Minzu University, Enshi, China
| | - Xiane Tang
- Hubei Provincial Clinical Medical Research Center for Nephropathy, Minda Hospital of Hubei Minzu University, Enshi, China
- Health Science Center, Hubei Minzu University, Enshi, China
| | - Fangyu Zhao
- Hubei Provincial Clinical Medical Research Center for Nephropathy, Minda Hospital of Hubei Minzu University, Enshi, China
- Health Science Center, Hubei Minzu University, Enshi, China
| | - Xiaoli Qin
- Health Science Center, Hubei Minzu University, Enshi, China
| | - Fengjie Wang
- Hubei Provincial Clinical Medical Research Center for Nephropathy, Minda Hospital of Hubei Minzu University, Enshi, China
- Health Science Center, Hubei Minzu University, Enshi, China
| | - Dan Yang
- Health Science Center, Hubei Minzu University, Enshi, China
| | - Hong Zhu
- Hubei Provincial Clinical Medical Research Center for Nephropathy, Minda Hospital of Hubei Minzu University, Enshi, China
| | - Xianbing Chen
- Hubei Provincial Clinical Medical Research Center for Nephropathy, Minda Hospital of Hubei Minzu University, Enshi, China
- Health Science Center, Hubei Minzu University, Enshi, China
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Zhou J, Wei Q, Hu H, Liu W, Guan X, Ma A, Wang L. A systematic review and meta-analysis of health utility values among patients with ischemic stroke. Front Neurol 2023; 14:1219679. [PMID: 37731850 PMCID: PMC10507900 DOI: 10.3389/fneur.2023.1219679] [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: 05/09/2023] [Accepted: 08/16/2023] [Indexed: 09/22/2023] Open
Abstract
Purpose Ischemic stroke (IS) has a considerable impact on the health-related quality of life (HRQoL) of patients. A systematic review was conducted to summarize and synthesize the HRQoL reported from IS patients. Methods An electronic search was performed in PubMed, Web of Science, ScienceDirect, Embase, and Cochrane Library databases from inception to February 2022 for studies measuring utility values in IS patients. Basic information about the studies, patient characteristics, measurement of the utility values, and utility values were extracted and summarized. Utility values were pooled according to the time of evaluation, and disease severity was classified with modified Rankin Scale (mRS) scores. The quality of the studies was assessed according to key criteria recommended by the National Institute for Health and Care Excellence. Results A total of 39 studies comprising 30,853 participants were included in the study. Measured with EQ-5D-3L, the pooled utility values were 0.42 [95% confidential interval (CI): 0.13 to 0.71], 0.55 (95% CI: 0.43 to 0.68), 0.65 (95% CI: 0.52 to 0.78), 0.60 (95% CI: 0.43 to 0.78), and 0.67 (95% CI: 0.60 to 0.74) for patients diagnosed with IS within 1, 3, 6, 12, and 24 months or above among poststroke patients. Four studies reported utility values classified by mRS scores where synthesized estimates stratified by mRS scores ranged from 0.91 (95% CI: 0.85 to 0.97) for patients with an mRS score of 1 to-0.04 (95% CI:-0.18 to 0.11) for those with an mRS score of 5. As for the health dimension profiles, usual activity was the most impacted dimension, while self-care was the least impacted one. Conclusion This study indicated that the utility values in IS patients kept increasing from stroke onset and became relatively stabilized at 6 months poststroke. Health utility values decreased significantly as mRS scores increased. These results facilitate economic evaluations in utility retrieval and selection. Further exploration was required regarding the factors that affect the HRQoL of IS patients.
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Affiliation(s)
| | | | | | | | | | - Aixia Ma
- School of International Pharmaceutical Business, China Pharmaceutical University, Nanjing, China
| | - Luying Wang
- School of International Pharmaceutical Business, China Pharmaceutical University, Nanjing, China
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16
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Chan MKL, Yeung WKY, Yu JKP, Ng SSW, Tong RKY. Exploratory Study on the Clinical use of EEG for the People with Chronic Stroke and Their Correlation with the Neuropsychological Outcome. Clin EEG Neurosci 2023; 54:534-548. [PMID: 35068216 DOI: 10.1177/15500594221074858] [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] [Indexed: 11/17/2022]
Abstract
Objective. To measure the EEG signals of the people with chronic stroke in eyes-closed and eyes-open condition and study their relationship with the cognitive function and mental wellbeing. Methods. The investigators would conduct cognitive and mental wellbeing tests on recruited subjects. Their EEG signal was acquired by the 16-channel EEG system. The absolute power under different frequency bands and EEG indices (delta alpha ratio and pairwise derived brain symmetry index) in different eye conditions was calculated. Pearson's correlation was conducted to investigate the association between the clinical tests and the EEG index. Results. 32 subjects were recruited for the study. There was a significant correlation between the pairwise derived brain symmetry index (pdBSI) in eyes-open condition with the Stroop Test (p = .002), Paced Auditory Serial Addition Test-3 s (p = .008)/2 s (p = .002) and WHO-5 well-being scale (p = .023). Conclusions. There is a significant correlation between the brain symmetry index and the cognitive and wellbeing assessment. Brain symmetry index over the delta frequency has been found to be the most useful parameter relating to the clinical score.Significance:It is recommended to use EEG as an adjunctive neuropsychological assessment in clinics for people with chronic stroke, especially for clients who could not undertake conventional assessments (eg aphasia, attention problem).Highlights: There is a significant correlation between the EEG index and the clinical neuropsychological assessmentPairwise Derived Brain Symmetry index in delta frequency range correlated with most of the neuropsychological outcome.It is feasible for us to adopt EEG as an adjunctive assessment in clinical settings.
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Affiliation(s)
- Marko Ka Leung Chan
- Community Rehabilitation Service Support Centre, Queen Elizabeth Hospital, Kowloon, Hong Kong
- Department of Biomedical Engineering, The Chinese University of Hong Kong, New Territories, Hong Kong
| | - Winnie Ka Yee Yeung
- Community Rehabilitation Service Support Centre, Queen Elizabeth Hospital, Kowloon, Hong Kong
| | - Jason King Pong Yu
- Community Rehabilitation Service Support Centre, Queen Elizabeth Hospital, Kowloon, Hong Kong
| | - Serena Sin Wah Ng
- Community Rehabilitation Service Support Centre, Queen Elizabeth Hospital, Kowloon, Hong Kong
| | - Raymond Kai Yu Tong
- Department of Biomedical Engineering, The Chinese University of Hong Kong, New Territories, Hong Kong
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17
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White K, Tate S, Zafonte R, Narayanan S, Mehl MR, Shin M, Dhand A. SocialBit: protocol for a prospective observational study to validate a wearable social sensor for stroke survivors with diverse neurological abilities. BMJ Open 2023; 13:e076297. [PMID: 37640467 PMCID: PMC10462953 DOI: 10.1136/bmjopen-2023-076297] [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: 06/02/2023] [Accepted: 08/08/2023] [Indexed: 08/31/2023] Open
Abstract
INTRODUCTION Social isolation has been found to be a significant risk factor for health outcomes, on par with traditional risk factors. This isolation is characterised by reduced social interactions, which can be detected acoustically. To accomplish this, we created a machine learning algorithm called SocialBit. SocialBit runs on a smartwatch and detects minutes of social interaction based on vocal features from ambient audio samples without natural language processing. METHODS AND ANALYSIS In this study, we aim to validate the accuracy of SocialBit in stroke survivors with varying speech, cognitive and physical deficits. Training and testing on persons with diverse neurological abilities allows SocialBit to be a universally accessible social sensor. We are recruiting 200 patients and following them for up to 8 days during hospitalisation and rehabilitation, while they wear a SocialBit-equipped smartwatch and engage in naturalistic daily interactions. Human observers tally the interactions via a video livestream (ground truth) to analyse the performance of SocialBit against it. We also examine the association of social interaction time with stroke characteristics and outcomes. If successful, SocialBit would be the first social sensor available on commercial devices for persons with diverse abilities. ETHICS AND DISSEMINATION This study has received ethical approval from the Institutional Review Board of Mass General Brigham (Protocol #2020P003739). The results of this study will be published in a peer-reviewed journal.
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Affiliation(s)
- Kelly White
- Department of Neurology, Brigham and Women's Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Samuel Tate
- Department of Computer Science, The University of North Carolina at Charlotte, Charlotte, North Carolina, USA
| | - Ross Zafonte
- Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital Boston, Boston, Massachusetts, USA
| | - Shrikanth Narayanan
- Department of Engineering, University of Southern California, Los Angeles, California, USA
| | - Matthias R Mehl
- Department of Psychology, University of Arizona, Tucson, Arizona, USA
| | - Min Shin
- Department of Computer Science, The University of North Carolina at Charlotte, Charlotte, North Carolina, USA
| | - Amar Dhand
- Department of Neurology, Brigham and Women's Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
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Stockbridge MD, Keser Z. Supporting Post-Stroke Language and Cognition with Pharmacotherapy: Tools for Each Phase of Care. Curr Neurol Neurosci Rep 2023; 23:335-343. [PMID: 37271792 PMCID: PMC10257638 DOI: 10.1007/s11910-023-01273-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/18/2023] [Indexed: 06/06/2023]
Abstract
PURPOSE OF REVIEW There is enormous enthusiasm for the possibility of pharmacotherapies to treat language deficits that can arise after stroke. Speech language therapy remains the most frequently utilized and most strongly evidenced treatment, but the numerous barriers to patients receiving the therapy necessary to recover have motivated the creation of a relatively modest, yet highly cited, body of evidence to support the use of pharmacotherapy to treat post-stroke aphasia directly or to augment traditional post-stroke aphasia treatment. In this review, we survey the use of pharmacotherapy to preserve and support language and cognition in the context of stroke across phases of care, discuss key ongoing clinical trials, and identify targets that may become emerging interventions in the future. RECENT FINDINGS Recent trials have shifted focus from short periods of drug therapy supporting therapy in the chronic phase to longer terms approaching pharmacological maintenance beginning more acutely. Recent innovations in hyperacute stroke care, such as tenecteplase, and acute initiation of neuroprotective agents and serotonin reuptake inhibitors are important areas of ongoing research that complement the ongoing search for effective adjuvants to later therapy. Currently there are no drugs approved in the United States for the treatment of aphasia. Nevertheless, pharmacological intervention may provide a benefit to all phases of stroke care.
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Affiliation(s)
- Melissa D Stockbridge
- Department of Neurology, Johns Hopkins University School of Medicine, 600 North Wolfe Street, Phipps 4, Suite 446, Baltimore, MD, 21287, USA.
| | - Zafer Keser
- Department of Neurology, Mayo Clinic, Rochester, MN, 55905, USA
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Kaur N, LaForce G, Mallela DP, Saha PP, Buffa J, Li XS, Sangwan N, Rothenberg K, Zhu W. Exploratory Transcriptomic Profiling Reveals the Role of Gut Microbiota in Vascular Dementia. Int J Mol Sci 2023; 24:ijms24098091. [PMID: 37175797 PMCID: PMC10178712 DOI: 10.3390/ijms24098091] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/27/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023] Open
Abstract
Stroke is the second most common cause of cognitive impairment and dementia. Vascular dementia (VaD), a cognitive impairment following a stroke, is common and significantly impacts the quality of life. We recently demonstrated via gut microbe transplant studies that the gut microbe-dependent trimethylamine-N-oxide (TMAO) pathway impacts stroke severity, both infarct size and long-term cognitive outcomes. However, the molecular mechanisms that underly the role of the microbiome in VaD have not been explored in depth. To address this issue, we performed a comprehensive RNA-sequencing analysis to identify differentially expressed (DE) genes in the ischemic cerebral cortex of mouse brains at pre-stroke and post-stroke day 1 and day 3. A total of 4016, 3752 and 7861 DE genes were identified at pre-stroke and post-stroke day 1 and day 3, respectively. The Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis indicated pathways of neurodegeneration in multiple diseases, chemokine signaling, calcium signaling, and IL-17 signaling as the key enriched pathways. Inflammatory response genes interleukin-1 beta (Il-1β), chemokines (C-X-C motif chemokine ligand 10 (Cxcl10), chemokine ligand 2 (Ccl2)), and immune system genes (S100 calcium binding protein 8 (S100a8), lipocalin-2 (Lcn2)) were among the most significantly upregulated genes. Hypocretin neuropeptide precursor (Hcrt), a neuropeptide, and transcription factors such as neuronal PAS domain protein 4 (Npas4), GATA binding protein 3 (Gata3), and paired box 7 (Pax7) were among the most significantly downregulated genes. In conclusion, our results indicate that higher plasma TMAO levels induce differential mRNA expression profiles in the ischemic brain tissue in our pre-clinical stroke model, and the predicted pathways provide the molecular basis for regulating the TMAO-enhanced neuroinflammatory response in the brain.
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Affiliation(s)
- Navdeep Kaur
- Department of Cardiovascular & Metabolic Sciences, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Geneva LaForce
- Department of Cardiovascular & Metabolic Sciences, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Deepthi P Mallela
- Department of Cardiovascular & Metabolic Sciences, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Prasenjit Prasad Saha
- Department of Cardiovascular & Metabolic Sciences, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Jennifer Buffa
- Department of Cardiovascular & Metabolic Sciences, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Xinmin S Li
- Department of Cardiovascular & Metabolic Sciences, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Naseer Sangwan
- Department of Cardiovascular & Metabolic Sciences, Cleveland Clinic, Cleveland, OH 44195, USA
- Microbial Sequencing & Analytics Resource (MSAAR) Facility, Shared Laboratory Resources (SLR), Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Kasia Rothenberg
- Cleveland Clinic Lou Ruvo Center for Brain Health, Cleveland, OH 44195, USA
| | - Weifei Zhu
- Department of Cardiovascular & Metabolic Sciences, Cleveland Clinic, Cleveland, OH 44195, USA
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20
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Kaddumukasa MN, Kaddumukasa M, Katabira E, Sewankambo N, Namujju LD, Goldstein LB. Prevalence and predictors of post-stroke cognitive impairment among stroke survivors in Uganda. BMC Neurol 2023; 23:166. [PMID: 37098461 PMCID: PMC10127321 DOI: 10.1186/s12883-023-03212-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Accepted: 04/15/2023] [Indexed: 04/27/2023] Open
Abstract
BACKGROUND Little is known about the characteristics and determinants of post-stroke cognitive impairment in residents of low- and middle-income countries. The objective of this study was to determine the frequencies, patterns, and risk factors for cognitive impairment in a cross-sectional study of consecutive stroke patients cared for at Uganda's Mulago Hospital, located in sub-Saharan Africa. METHODS 131 patients were enrolled a minimum of 3-months after hospital admission for stroke. A questionnaire, clinical examination findings, and laboratory test results were used to collect demographic information and data on vascular risk factors and clinical characteristics. Independent predictor variables associated with cognitive impairment were ascertained. Stroke impairments, disability, and handicap were assessed using the National Institute of Health Stroke Scale (NIHSS), Barthel Index (BI), and modified Rankin scale (mRS), respectively. The Montreal Cognitive Assessment (MoCA) was used to assess participants' cognitive function. Stepwise multiple logistic regression was used to identify variables independently associated with cognitive impairment. RESULTS The overall mean MoCA score was 11.7-points (range 0.0-28.0-points) for 128 patients with available data of whom 66.4% were categorized as cognitively impaired (MoCA < 19-points). Increasing age (OR 1.04, 95% CI 1.00-1.07; p = 0.026), low level of education (OR 3.23, 95% CI 1.25-8.33; p = 0.016), functional handicap (mRS 3-5; OR 1.84, 95% CI 1.28-2.63; p < 0.001) and high LDL cholesterol (OR 2.74, 95% CI 1.14-6.56; p = 0.024) were independently associated with cognitive impairment. CONCLUSIONS Our findings highlight the high burden and need for awareness of cognitive impairment in post stroke populations in the sub-Saharan region and serve to emphasize the importance of detailed cognitive assessment as part of routine clinical evaluation of patients who have had a stroke.
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Affiliation(s)
- Martin N Kaddumukasa
- Department of Medicine, School of Medicine, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Mark Kaddumukasa
- Department of Medicine, School of Medicine, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Elly Katabira
- Department of Medicine, School of Medicine, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Nelson Sewankambo
- Department of Medicine, School of Medicine, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Lillian D Namujju
- Department of Electrical and Computer Engineering, College of Engineering, Design, Art and Technology, Makerere University, Kampala, Uganda
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Martzoukou M, Nousia A, Nasios G. Undetected language deficits in left or right hemisphere post-stroke patients. APPLIED NEUROPSYCHOLOGY. ADULT 2023:1-9. [PMID: 36997164 DOI: 10.1080/23279095.2023.2195111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/01/2023]
Abstract
Previous studies have reported that widely used tests for aphasia identification are unable to detect the subtle language deficits of left hemisphere brain damaged (LHBD) individuals. Similarly, the language disorders of individuals with right hemisphere brain damage (RHBD) usually remain undetected, due to the lack of any specialized test for the evaluation of their language processing skills. The aim of the present study was to evaluate the language deficits of 80 individuals suffering from the effects of either a LHBD or RHBD stroke, who were diagnosed as having no aphasia or language deficits based on the application of Boston Diagnostic Aphasia Examination. Their language abilities were examined with the use of the Adults' Language Abilities Test, which explores morpho-syntactic and semantic phenomena of the Greek language in both the comprehension and production modalities. Results revealed that both groups of stroke survivors performed significantly worse compared to the group of healthy participants. Thus, it appears that the latent aphasia of LHBD and the language deficits of RHBD patients are likely to remain undetected and that patients are at risk of not receiving appropriate treatment if their language abilities are not evaluated by an effective and efficient battery of language tests.
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Affiliation(s)
- Maria Martzoukou
- Department of Speech and Language Therapy, University of Ioannina, Ioannina, Greece
| | - Anastasia Nousia
- Department of Speech and Language Therapy, University of Ioannina, Ioannina, Greece
| | - Grigorios Nasios
- Department of Speech and Language Therapy, University of Ioannina, Ioannina, Greece
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Kaddumukasa MN, Kaddumukasa M, Katabira E, Sewankambo N, Namujju LD, Goldstein LB. Prevalence and Predictors of Post-stroke Cognitive Impairment among Stroke Survivors in Uganda. RESEARCH SQUARE 2023:rs.3.rs-2456615. [PMID: 36711491 PMCID: PMC9882649 DOI: 10.21203/rs.3.rs-2456615/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Background Little is known about the characteristics and determinants of post-stroke cognitive impairments in low- and middle-income countries. The objective of this study was to determine the frequencies, patterns, and risk factors for cognitive impairment in a cross-sectional study of consecutive stroke patients cared for at Uganda's Mulago Hospital, located in sub-Saharan Africa. Methods From August 2019 to July 2020, patients were enrolled a minimum of 3-months post-stroke hospital admission. We collected data on their demographics, vascular risk factors and clinical factors using a questionnaire, clinical examination findings, and test results. Independent predictor variables associated with cognitive impairment were ascertained. Stroke impairments, disability, and handicap were assessed using the National Institute of Health Stroke Scale (NIHSS), Barthel Index (BI), and modified Rankin scale (mRS), respectively. The Montreal Cognitive Assessment (MoCA) was used to assess participants' cognitive function. Stepwise multiple logistic regression was used to identify variables independently associated with cognitive impairment. Results The overall mean MoCA score was 11.7-points (range 0.0-28.0-points) for 128 patients with available data of whom 66.4% were categorized as cognitively impaired (MoCA < 19-points). Increasing age (OR 1.04, 95% CI 1.00-1.07; p = 0.026), low level of education (OR 3.23, 95% CI 1.25-8.33; p = 0.016), functional handicap (mRS 3-5; OR 1.84, 95% CI 1.28-2.63; p < 0.001) and high LDL cholesterol (OR 2.74, 95% CI 1.14-6.56; p = 0.024) were independently associated with cognitive impairment. Discussion Further longitudinal, prospective studies are required to confirm these findings and identify strategies for reducing the risk of post-stroke cognitive impairment in this population.
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23
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Heiberg AV, Simonsen SA, Schytz HW, Iversen HK. Cortical hemodynamic response during cognitive Stroop test in acute stroke patients assessed by fNIRS. NeuroRehabilitation 2023; 52:199-217. [PMID: 36641686 DOI: 10.3233/nre-220171] [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: 01/12/2023]
Abstract
BACKGROUND Following acute ischemic stroke (AIS) many patients experience cognitive impairment which interferes neurorehabilitation. Understanding and monitoring pathophysiologic processes behind cognitive symptoms requires accessible methods during testing and training. Functional near-infrared spectroscopy (fNIRS) can assess activational hemodynamic responses in the prefrontal cortex (PFC) and feasibly be used as a biomarker to support stroke rehabilitation. OBJECTIVE Exploring the feasibility of fNIRS as a biomarker during the Stroop Color and Word Test (SCWT) assessing executive function in AIS patients. METHODS Observational study of 21 patients with mild to moderate AIS and 22 healthy age- and sex-matched controls (HC) examined with fNIRS of PFC during the SCWT. Hemodynamic responses were analyzed with general linear modeling. RESULTS The SCWT was performed worse by AIS patients than HC. Neither patients nor HC showed PFC activation, but an inverse activational pattern primarily in superolateral and superomedial PFC significantly lower in AIS. Hemodynamic responses were incoherent to test difficulty and performance. No other group differences or lateralization were found. CONCLUSIONS AIS patients had impaired executive function assessed by the SCWT, while both groups showed an inverse hemodynamic response significantly larger in HC. Investigations assessing the physiology behind inverse hemodynamic responses are warranted before deeming clinical implementation reasonable.
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Affiliation(s)
- Adam Vittrup Heiberg
- Clinical Stroke Research Unit, Department of Neurology, Copenhagen University Hospital - Rigshospitalet, Glostrup, Denmark.,Faculty of Health and MedicalSciences, University of Copenhagen, Copenhagen, Denmark
| | - Sofie Amalie Simonsen
- Clinical Stroke Research Unit, Department of Neurology, Copenhagen University Hospital - Rigshospitalet, Glostrup, Denmark
| | - Henrik Winther Schytz
- Faculty of Health and MedicalSciences, University of Copenhagen, Copenhagen, Denmark.,Danish Headache Center, Department of Neurology, Copenhagen University Hospital - Rigshospitalet, Glostrup, Denmark
| | - Helle Klingenberg Iversen
- Clinical Stroke Research Unit, Department of Neurology, Copenhagen University Hospital - Rigshospitalet, Glostrup, Denmark.,Faculty of Health and MedicalSciences, University of Copenhagen, Copenhagen, Denmark
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24
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Zinman J, Kapoor A, Si K, Sujanthan S, Southwell A, Cayley ML, Sicard MN, Lien K, Murray BJ, Lanctôt K, Herrmann N, Dowlatshahi D, Sahlas DJ, Saposnik G, Mandzia JL, Casaubon LK, Hassan A, Perez Y, Swartz RH. Men Are at Higher Risk of Screening Positive for Vascular Cognitive Impairment Compared to Women after Stroke and Transient Ischemic Attack. J Alzheimers Dis 2023; 94:89-94. [PMID: 37212109 DOI: 10.3233/jad-230021] [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] [Indexed: 05/23/2023]
Abstract
While women have greater incidence of dementia, men have higher prevalence of vascular risk factors. This study examined sex differences in risk of screening positive for cognitive impairment after stroke. Ischemic stroke/TIA patients (N = 5969) participated in this prospective, multi-centered study, which screened for cognitive impairment using a validated brief screen. Men showed a higher risk of screening positive for cognitive impairment after adjusting for age, education, stroke severity, and vascular risk factors, suggesting that other factors may be contributing to increased risk among men (OR = 1.34, CI 95% [1.16, 1.55], p < 0.001). The effect of sex on cognitive impairment after stroke warrants further attention.
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Affiliation(s)
- Julia Zinman
- Department of Medicine (Neurology), Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Arunima Kapoor
- Department of Medicine (Neurology), Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Kevin Si
- Department of Medicine (Neurology), Sunnybrook Health Sciences Centre, Toronto, ON, Canada
- University of Toronto, Toronto, ON, Canada
| | - Sajeevan Sujanthan
- Department of Medicine (Neurology), Sunnybrook Health Sciences Centre, Toronto, ON, Canada
- University of Toronto, Toronto, ON, Canada
| | - Alisia Southwell
- Department of Medicine (Neurology), Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Megan L Cayley
- Department of Medicine (Neurology), Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Michelle N Sicard
- Department of Medicine (Neurology), Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Karen Lien
- Department of Medicine (Neurology), Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Brian J Murray
- Department of Medicine (Neurology), Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Krista Lanctôt
- University of Toronto, Toronto, ON, Canada
- Department of Psychiatry, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - Nathan Herrmann
- University of Toronto, Toronto, ON, Canada
- Department of Psychiatry, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - Dar Dowlatshahi
- Department of Medicine, University of Ottawa and Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Demetrios J Sahlas
- Department of Medicine (Neurology), McMaster University, Hamilton General Hospital, Hamilton Health Sciences, Hamilton, ON, Canada
| | - Gustavo Saposnik
- Stroke Outcomes and Decision Neuroscience Unit, St. Michael's Hospital, Toronto, ON, Canada
| | - Jennifer L Mandzia
- London Health Sciences Centre, Division of Neurology, London, ON, Canada
| | - Leanne K Casaubon
- University Health Network/Toronto Western Hospital, Division of Neurology, Toronto, ON, Canada
| | - Ayman Hassan
- Thunder Bay Regional Health Sciences Centre, Division of Neurology, Thunder Bay, ON, Canada
| | - Yael Perez
- Trillium Health Partners, Department of Medicine (Neurology), Mississauga, ON, Canada
| | - Richard H Swartz
- Department of Medicine (Neurology), Sunnybrook Health Sciences Centre, Toronto, ON, Canada
- University of Toronto, Toronto, ON, Canada
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25
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Jeffares I, Merriman NA, Doyle F, Horgan F, Hickey A. Designing stroke services for the delivery of cognitive rehabilitation: A qualitative study with stroke rehabilitation professionals. Neuropsychol Rehabil 2023; 33:24-47. [PMID: 34648412 DOI: 10.1080/09602011.2021.1977155] [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: 10/20/2022]
Abstract
This qualitative study explored the potential to deliver cognitive rehabilitation for post-stroke cognitive impairment (PSCI), with a specific focus on barriers and facilitators to its delivery from the perspective of Irish stroke rehabilitation professionals. Sixteen semi-structured interviews were completed with healthcare professionals in both hospital and community settings. The sample comprised physiotherapists, occupational therapists, nurses, a stroke physician, a psychologist, a neuropsychologist, a speech and language therapist, a dietician, and a public health nurse. Interviews were audio-recorded and analysed in NVivo using inductive Thematic Analysis. Barriers and facilitators to the delivery of cognitive rehabilitation were identified and described under four key themes: (i) Cognitive screening; (ii) Cognitive rehabilitation: no one size fits all; (iii) Psychology: the lost dimension of stroke rehabilitation; and (iv) Joining the dots in the community. Staffing required to deliver cognitive rehabilitation for PSCI was highlighted as under-resourced in the Republic of Ireland. Inadequate resourcing of neuropsychology and stroke-related psychological services, in particular, has had negative implications for the delivery of cognitive rehabilitation. Stroke-specific cognitive rehabilitation expertise is virtually inaccessible in the community, highlighting an urgent need for investment in specialist rehabilitation teams to deliver cognitive rehabilitation in this setting.
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Affiliation(s)
- Isabelle Jeffares
- Department of Health Psychology, Division of Population Health Sciences, Royal College of Surgeons in Ireland, University of Medicine and Health Sciences, Dublin, Ireland
| | - Niamh A Merriman
- Department of Health Psychology, Division of Population Health Sciences, Royal College of Surgeons in Ireland, University of Medicine and Health Sciences, Dublin, Ireland
| | - Frank Doyle
- Department of Health Psychology, Division of Population Health Sciences, Royal College of Surgeons in Ireland, University of Medicine and Health Sciences, Dublin, Ireland
| | - Frances Horgan
- School of Physiotherapy, Royal College of Surgeons in Ireland, University of Medicine and Health Sciences, Dublin, Ireland
| | - Anne Hickey
- Department of Health Psychology, Division of Population Health Sciences, Royal College of Surgeons in Ireland, University of Medicine and Health Sciences, Dublin, Ireland
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26
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Cherkos K, Jember G, Mihret T, Fentanew M. Prevalence and Associated Factors of Cognitive Impairment Among Stroke Survivors at Comprehensive Specialized Hospitals in Northwest Ethiopia: Multi-Centered Cross-Sectional Study. Vasc Health Risk Manag 2023; 19:265-277. [PMID: 37138791 PMCID: PMC10150733 DOI: 10.2147/vhrm.s405357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Accepted: 04/22/2023] [Indexed: 05/05/2023] Open
Abstract
Background Deficit in cognitive impairment is the most serious of the stroke sequelae. Post-stroke cognitive impairment is associated with impaired daily living activities and decreased capacity for independent living and functional performance. As a result, the purpose of this study was to determine the prevalence and associated factors of cognitive impairment among stroke survivors at comprehensive specialized hospitals in Ethiopia's Amhara region by 2022. Methods A multi-centered cross-sectional study was designed at an institution. During the study period. Data was gathered by conducting structured questionnaire interviews with participants and reviewing medical charts with trained data collectors. The participants were chosen using a systematic random sampling technique. The Montreal cognitive assessment basic was used to assess cognitive impairment. Descriptive statistics, binary and multivariate logistic regression methods were used to analyze the data. The Hosmer-Lemeshow goodness-of-fit test was used to assess the fitness of the model. The AOR with a P value of 0.05 at 95% CI was reported, and variables were considered statistically significant. Results This study enrolled 422 stroke survivors. Overall, 58.3% of stroke survivors had cognitive impairment (95% CI 53.4-63.0%). The study participants' age with AOR; 7.12 (4.40-11.45), being hypertensive with AOR; 7.52 (3.46-16.35), arriving at the hospital after 24 hours with AOR; 4.33 (1.49-12.05), less than three months after stroke with AOR; 4.83 (3.95-12.19), dominant hemisphere lesion with AOR; 4.83 (3.95-12.19) and being illiterate with AOR; 5.26 (4.43-18.64) were found significant factors. Conclusion Cognitive impairment was discovered to be relatively common among stroke survivors in this study. More than half of stroke survivors who attended comprehensive specialized hospitals during the study period were found to have cognitive impairment. Age, hypertension, arriving at the hospital after 24 hours, less than three months after stroke, dominant hemisphere lesion, and illiterate educational status were all significant factors in cognitive impairment.
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Affiliation(s)
- Kassahun Cherkos
- Department of Physiotherapy, School of Medicine, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Gashaw Jember
- Department of Physiotherapy, School of Medicine, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Tewodros Mihret
- Department of Physiotherapy, School of Medicine, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Molla Fentanew
- Department of Physiotherapy, School of Medicine, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
- Correspondence: Molla Fentanew, University of Gondar, P.O. Box. 196, Gondar, Ethiopia, Tel +251935686860, Email
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27
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Gil-Pagés M, Solana J, Sánchez-Carrión R, Tormos JM, Enseñat-Cantallops A, García-Molina A. Functional improvement in chronic stroke patients when following a supervised home-based computerized cognitive training. Brain Inj 2022; 36:1349-1356. [PMID: 36331895 DOI: 10.1080/02699052.2022.2140832] [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: 11/06/2022]
Abstract
BACKGROUND Computerized Cognitive Training (CCT) is an effective treatment for cognitive impairment in the post-acute stage of stroke. However, it is still not clear if it is suitable for chronic stage. OBJECTIVES To explore if patients with cognitive deficit following stroke may benefit from CCT. METHODS Thirty patients post-stroke between 24 and 62 years old were randomized into two groups (A and B) to receive two different types of CCT. All patients were tested with a neuropsychological battery and functional questionnaires, before and after each CCT and also 6 months after the end of the study. In phase I, Group A received a customized CCT and Group B received a non-customized CCT, over 6 weeks. Three months after, each group received the other intervention (phase II). RESULTS After phase I, between-group analyses revealed that Group A showed a relative decrease in subjective complaints. In contrast, Group B showed improvement in performance-based measures. After phase II, the decrease in subjective complaints continued in Group A, and both groups showed improvement in performance-based measures. CONCLUSIONS Patients with chronic stroke improved cognitive functioning after performing supervised home-based multi-domain computerized cognitive training.
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Affiliation(s)
- Macarena Gil-Pagés
- Institut Guttmann, Institut Universitari de Neurorehabilitació, adscrit a la Universitat Autònoma de Barcelona, Badalona, Barcelona, Spain.,Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain.,Fundació Institut d´Investigació en Ciències de la Salut Germans Trias i Pujol, Badalona, Barcelona, Spain.,Departament de Psicologia Clínica i de la Salut, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | - Javier Solana
- Institut Guttmann, Institut Universitari de Neurorehabilitació, adscrit a la Universitat Autònoma de Barcelona, Badalona, Barcelona, Spain.,Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain.,Fundació Institut d´Investigació en Ciències de la Salut Germans Trias i Pujol, Badalona, Barcelona, Spain
| | - Rocío Sánchez-Carrión
- Institut Guttmann, Institut Universitari de Neurorehabilitació, adscrit a la Universitat Autònoma de Barcelona, Badalona, Barcelona, Spain.,Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain.,Fundació Institut d´Investigació en Ciències de la Salut Germans Trias i Pujol, Badalona, Barcelona, Spain
| | - Jose M Tormos
- Institut Guttmann, Institut Universitari de Neurorehabilitació, adscrit a la Universitat Autònoma de Barcelona, Badalona, Barcelona, Spain.,Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain.,Fundació Institut d´Investigació en Ciències de la Salut Germans Trias i Pujol, Badalona, Barcelona, Spain
| | - Antonia Enseñat-Cantallops
- Institut Guttmann, Institut Universitari de Neurorehabilitació, adscrit a la Universitat Autònoma de Barcelona, Badalona, Barcelona, Spain.,Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain.,Fundació Institut d´Investigació en Ciències de la Salut Germans Trias i Pujol, Badalona, Barcelona, Spain
| | - Alberto García-Molina
- Institut Guttmann, Institut Universitari de Neurorehabilitació, adscrit a la Universitat Autònoma de Barcelona, Badalona, Barcelona, Spain.,Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain.,Fundació Institut d´Investigació en Ciències de la Salut Germans Trias i Pujol, Badalona, Barcelona, Spain
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28
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Ghoreyshi Z, Nilipour R, Bayat N, Nejad SS, Mehrpour M, Azimi T. The Incidence of Aphasia, Cognitive Deficits, Apraxia, Dysarthria, and Dysphagia in Acute Post Stroke Persian Speaking Adults. Indian J Otolaryngol Head Neck Surg 2022; 74:5685-5695. [PMID: 36742896 PMCID: PMC9895668 DOI: 10.1007/s12070-021-03006-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Accepted: 11/18/2021] [Indexed: 02/07/2023] Open
Abstract
Stroke is a major cause of serious disabilities in adults. While communication deficits post stroke are prevalent and disabling, early detection of them is important during acute phase. There is limited data published on the incidence of communication disorders in Persian speaking adults following post stroke to our knowledge. The present study aims to determine the incidence and associated factors of aphasia, cognitive deficits, motor speech disorders (apraxia and dysarthria) as well as dysphagia following acute post stroke in Persian speaking adults. 100 stroke patients were assessed using P-WAB, MMSE, Oral Apraxia test, Informal Dysarthria assessment, and MASA. The data was collected from 2 hospitals in Tehran using convenient sampling for the duration of 1 year. Based on our findings, the incidence of aphasia, cognitive deficits, oral apraxia, dysarthria, and dysphagia was in respectively 61.8%, 76%, 30%, 61%, and 39% of stroke patients during the acute phase. Patients with aphasia were significantly older (mean age, 59.29 vs. 64.95), and had fewer education years (9.21 vs. 5.45) compared to individuals without aphasia (p < .05). Co-occurrence of aphasia and dysarthria, dysphasia, cognitive deficits, and apraxia was in respectively 40%, 31%, 55%, and 25%. Due to the high incidence of neurogenic communication disorders and dysphagia during the acute post stroke, especially in the elderly and the less educated patients, prompt and rapid detection of these deficits and rehabilitation is essential to ameliorate patients' quality of life and social participation, and reduce the comorbidities risk.
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Affiliation(s)
- Zahra Ghoreyshi
- Department of Speech Therapy, University of Social Welfare and Rehabilitation Sciences, Second Floor, Building No 2, Koodakyar Ave., Daneshjo Blvd, 1985713834 Tehran, Iran
| | - Reza Nilipour
- Department of Speech Therapy, University of Social Welfare and Rehabilitation Sciences, Second Floor, Building No 2, Koodakyar Ave., Daneshjo Blvd, 1985713834 Tehran, Iran
| | - Narges Bayat
- Department of Speech Therapy, University of Social Welfare and Rehabilitation Sciences, Second Floor, Building No 2, Koodakyar Ave., Daneshjo Blvd, 1985713834 Tehran, Iran
| | - Samaneh Sazegar Nejad
- Department of Speech Therapy, University of Social Welfare and Rehabilitation Sciences, Second Floor, Building No 2, Koodakyar Ave., Daneshjo Blvd, 1985713834 Tehran, Iran
| | - Masoud Mehrpour
- Department of Neurology, Iran University of Medical Sciences, Hemat Highway, 1449614535 Tehran, Iran
| | - Tabassom Azimi
- Department of Speech Therapy, School of Rehabilitation, Babol University of Medical Sciences, Ganj Afrouz Ave., 47176-47745 Babol, Iran
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29
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Lomborg SD, Dalgas U, Hvid LG. The importance of neuromuscular rate of force development for physical function in aging and common neurodegenerative disorders - a systematic review. JOURNAL OF MUSCULOSKELETAL & NEURONAL INTERACTIONS 2022; 22:562-586. [PMID: 36458393 PMCID: PMC9716292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Accepted: 05/11/2022] [Indexed: 12/14/2022]
Abstract
We systematically reviewed existing literature regarding lower extremity neuromuscular rate of force development (RFD), maximal muscle strength (Fmax), and physical function in neurodegenerative populations, and to what extent these outcomes are affected and/or associated. Following PRISMA guidelines, 4 databases (Pubmed, Embase, SPORTDiscus, Web of Science) were searched. Across aging, Parkinson Disease (PD), Alzheimer's Disease (AD), Multiple Sclerosis (MS), or Stroke, included studies should report (Part 1) deficits in lower extremity RFD, Fmax, and physical function (~ individuals having inferior vs. superior physical function), and/or (Part 2) associations between RFD (or Fmax) and physical function. A total of N=32 studies (n=1087 participants) were included. Part 1: deficits in RFD (-31%, mean; N=22) were comparable to deficits in physical function (-26%; N=7), yet both deficits exceeded that of Fmax (-21%; N=20). Part 2: associations between RFD and physical function (r2=0.13, mean; N=16) were comparable to associations between Fmax and physical function ((r2=0.15; N=12). Lower extremity RFD is (1) particularly sensitive (i.e. adapts earlier and/or more extensively) towards neurodegeneration, and more so than Fmax, and (2) of importance for physical function but apparently not superior to Fmax. RFD could serve as a useful indicator/biomarker of changes in neuromuscular function elicited by neurodegeneration.
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Affiliation(s)
- Sidsel D. Lomborg
- Exercise Biology, Department of Public Health, Aarhus University, Denmark
| | - Ulrik Dalgas
- Exercise Biology, Department of Public Health, Aarhus University, Denmark
| | - Lars G. Hvid
- Exercise Biology, Department of Public Health, Aarhus University, Denmark
- The Danish MS Hospitals, Ry and Haslev, Denmark
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30
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Hadiyoso S, Ong PA, Zakaria H, Rajab TLE. EEG-Based Spectral Dynamic in Characterization of Poststroke Patients with Cognitive Impairment for Early Detection of Vascular Dementia. JOURNAL OF HEALTHCARE ENGINEERING 2022; 2022:5666229. [PMID: 36444210 PMCID: PMC9701122 DOI: 10.1155/2022/5666229] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 09/08/2022] [Accepted: 11/03/2022] [Indexed: 10/17/2023]
Abstract
One common type of vascular dementia (VaD) is poststroke dementia (PSD). Vascular dementia can occur in one-third of stroke patients. The worsening of cognitive function can occur quickly if not detected and treated early. One of the potential medical modalities for observing this disorder by considering costs and safety factors is electroencephalogram (EEG). It is thought that there are differences in the spectral dynamics of the EEG signal between the normal group and stroke patients with cognitive impairment so that it can be used in detection. Therefore, this study proposes an EEG signal characterization method using EEG spectral power complexity measurements to obtain features of poststroke patients with cognitive impairment and normal subjects. Working memory EEGs were collected and analyzed from forty-two participants, consisting of sixteen normal subjects, fifteen poststroke patients with mild cognitive impairment, and eleven poststroke patients with dementia. From the analysis results, it was found that there were differences in the dynamics of the power spectral in each group, where the spectral power of the cognitively impaired group was more regular than the normal group. Notably, (1) significant differences in spectral entropy (SpecEn) with a p value <0.05 were found for all electrodes, (2) there was a relationship between SpecEn values and the severity of dementia (SpecEnDem < SpecEnMCI < SpecEnNormal), and (3) a post hoc multiple comparison test showed significant differences between groups at the F7 electrode. This study shows that spectral complexity analysis can discriminate between normal and poststroke patients with cognitive impairment. For further studies, it is necessary to simulate performance validation so that the proposed approach can be used in the early detection of poststroke dementia and monitoring the development of dementia.
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Affiliation(s)
- Sugondo Hadiyoso
- School of Electrical Engineering and Informatics, Bandung Institute of Technology, Bandung, Indonesia
- School of Applied Science, Telkom University, Bandung, Indonesia
| | - Paulus Anam Ong
- Departement of Neurology, Faculty of Medicine, Padjadjaran University, Dr. Hasan Sadikin General Hospital, Bandung, Indonesia
| | - Hasballah Zakaria
- School of Electrical Engineering and Informatics, Bandung Institute of Technology, Bandung, Indonesia
| | - Tati Latifah E. Rajab
- School of Electrical Engineering and Informatics, Bandung Institute of Technology, Bandung, Indonesia
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31
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Stockbridge MD, Bunker LD, Hillis AE. Reversing the Ruin: Rehabilitation, Recovery, and Restoration After Stroke. Curr Neurol Neurosci Rep 2022; 22:745-755. [PMID: 36181577 PMCID: PMC9525934 DOI: 10.1007/s11910-022-01231-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/26/2022] [Indexed: 01/27/2023]
Abstract
PURPOSE OF REVIEW Stroke is a common cause of disability in aging adults. A given individual's needs after stroke vary as a function of the stroke extent and location. The purpose of this review was to discuss recent clinical investigations addressing rehabilitation of an array of overlapping functional domains. RECENT FINDINGS Research is ongoing in the domains of movement, cognition, attention, speech, language, swallowing, and mental health. To best assist patients' recovery, innovative research has sought to develop and evaluate behavioral approaches, identify and refine synergistic approaches that augment the response to behavioral therapy, and integrate technology where appropriate, particularly to introduce and titrate real-world complexity and improve the overall experience of therapy. Recent and ongoing trials have increasingly adopted a multidisciplinary nature - augmenting refined behavioral therapy approaches with methods for increasing their potency, such as pharmaceutical or electrical interventions. The integration of virtual reality, robotics, and other technological advancements has generated immense excitement, but has not resulted in consistent improvements over more universally accessible, lower technology therapy.
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Affiliation(s)
- Melissa D Stockbridge
- Department of Neurology, Johns Hopkins University School of Medicine, 600 North Wolfe Street, Phipps 4, Suite 446, Baltimore, MD, 21287, USA.
| | - Lisa D Bunker
- Department of Neurology, Johns Hopkins University School of Medicine, 600 North Wolfe Street, Phipps 4, Suite 446, Baltimore, MD, 21287, USA
| | - Argye E Hillis
- Department of Neurology, Johns Hopkins University School of Medicine, 600 North Wolfe Street, Phipps 4, Suite 446, Baltimore, MD, 21287, USA
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32
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Morrison HW, White MM, Rothers JL, Taylor-Piliae RE. Examining the Associations between Post-Stroke Cognitive Function and Common Comorbid Conditions among Stroke Survivors. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:13445. [PMID: 36294026 PMCID: PMC9603222 DOI: 10.3390/ijerph192013445] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 10/03/2022] [Accepted: 10/15/2022] [Indexed: 06/16/2023]
Abstract
A considerable complication for stroke survivors is the subsequent development of cognitive decline or dementia. In this study, the relationship between the inflammation-centered comorbidity burden on post-stroke cognitive function among community-dwelling stroke survivors capable of independent living was examined. Data for this secondary analysis were collected from stroke survivors (n = 97) participating in a randomized clinical trial. Participants provided baseline responses, regarding cognitive function (mini-mental status exam, MMSE; Montreal cognitive assessment, MoCA), history of stroke comorbid conditions, and the Stroke Prognosis Instrument-II (SPI-II), an index of stroke comorbidity and recurrent stroke risk within the next two years. Relationships and differences between groups were tested for significance using Spearman's correlation, Kruskal-Wallis, or Mann-Whitney U tests. Most stroke survivors (69%) had multiple comorbidities. Total SPI-II scores were negatively correlated to both MoCA and MMSE scores (r = -0.25, p = 0.01; r = -0.22, p = 0.03, respectively), and differences in MoCA scores among SPI-II risk groups (low, medium, high) were evident (p = 0.05). In contrast, there were no differences in MoCA or MMSE scores when comorbid conditions were examined individually. Lastly, no gender differences were evident in cognitive assessments. Our data support the premise that comorbidity's burden impacts post-stroke cognitive decline, more than a single comorbid condition. Inflammation may be an important component of this comorbidity burden. Future studies that operationalize this concept will better illuminate the complex phenomenon of post-stroke cognitive decline for improved clinical rehabilitation modalities.
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Affiliation(s)
| | - Melissa M. White
- El Paso Veteran’s Administration Healthcare System, El Paso, TX 79930, USA
| | - Janet L. Rothers
- BIO5 Institute Statistics Consulting Lab, The University of Arizona, Tucson, AZ 85721, USA
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Alashram AR, Annino G, Padua E. Rehabilitation interventions for cognitive deficits in stroke survivors: A systematic review of randomized controlled trials. APPLIED NEUROPSYCHOLOGY. ADULT 2022:1-27. [PMID: 36194642 DOI: 10.1080/23279095.2022.2130319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Cognitive deficits are one of the most common impairments after stroke. It negatively affects physical and social functioning. Rehabilitation interventions for cognitive deficits post-stroke have taken less consideration. The present study aimed to provide an overview of the effects of various rehabilitation interventions on cognitive functions in patients with stroke. PUBMED, SCOPUS, PEDro, EMBASE, MEDLINE, and REHABDATA were searched for randomized controlled trials (RCTs) investigating the effects of rehabilitation interventions on cognitive domains poststroke until August 2021. The methodological quality of the selected studies was evaluated using the Cochrane Collaboration tool, and the effect sizes were calculated. Forty-four studies met the inclusion criteria. A total of 3561 individuals with stroke, 57.60% of whom were males. The mean age for all participants was 65.48 years. Eighteen RCTs were high, moderate (n = 17), and low methodological quality (n = 9). The results showed evidence for the beneficial effects of many rehabilitation interventions on cognition in individuals with stroke. Rehabilitation plays a crucial role in improving cognitive functions in stroke patients with mild cognitive deficits. Virtual reality (VR), computer-based cognitive rehabilitation (CBCR), and non-aerobic exercises may promote cognitive functions in patients with stroke.
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Affiliation(s)
- Anas R Alashram
- Department of Physiotherapy, Middle East University, Amman, Jordan
- Department of Human Sciences and Promotion of the Quality of Life, San Raffaele Roma Open University, Rome, Italy
| | - Giuseppe Annino
- Department of Systems Medicine, University of Rome "Tor Vergata", Rome, Italy
| | - Elvira Padua
- Department of Human Sciences and Promotion of the Quality of Life, San Raffaele Roma Open University, Rome, Italy
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Svenningsson AL, Stomrud E, Palmqvist S, Hansson O, Ossenkoppele R. Axonal degeneration and amyloid pathology predict cognitive decline beyond cortical atrophy. Alzheimers Res Ther 2022; 14:144. [PMID: 36192766 PMCID: PMC9531524 DOI: 10.1186/s13195-022-01081-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 09/11/2022] [Indexed: 12/02/2022]
Abstract
BACKGROUND Cortical atrophy is associated with cognitive decline, but the association is not perfect. We aimed to identify factors explaining the discrepancy between the degree of cortical atrophy and cognitive decline in cognitively unimpaired elderly. METHODS The discrepancy between atrophy and cognitive decline was measured using the residuals from a linear regression analysis between change in whole brain cortical thickness over time and change in a cognitive composite measure over time in 395 cognitively unimpaired participants from the Swedish BioFINDER study. We tested for bivariate associations of this residual measure with demographic, imaging, and fluid biomarker variables using Pearson correlations and independent-samples t-tests, and for multivariate associations using linear regression models. Mediation analyses were performed to explore possible paths between the included variables. RESULTS In bivariate analyses, older age (r = -0.11, p = 0.029), male sex (t = -3.00, p = 0.003), larger intracranial volume (r = -0.17, p < 0.001), carrying an APOEe4 allele (t = -2.71, p = 0.007), larger white matter lesion volume (r = -0.16, p = 0.002), lower cerebrospinal fluid (CSF) β-amyloid (Aβ) 42/40 ratio (t = -4.05, p < 0.001), and higher CSF levels of phosphorylated tau (p-tau) 181 (r = -0.22, p < 0.001), glial fibrillary acidic protein (GFAP; r = -0.15, p = 0.003), and neurofilament light (NfL; r = -0.34, p < 0.001) were negatively associated with the residual measure, i.e., associated with worse than expected cognitive trajectory given the level of atrophy. In a multivariate analysis, only lower CSF Aβ42/40 ratio and higher CSF NfL levels explained cognition beyond brain atrophy. Mediation analyses showed that associations between the residual measure and APOEe4 allele, CSF Aβ42/40 ratio, and CSF GFAP and p-tau181 levels were mediated by levels of CSF NfL, as were the associations with the residual measure for age, sex, and WML volume. CONCLUSIONS Our results suggest that axonal degeneration and amyloid pathology independently affect the rate of cognitive decline beyond the degree of cortical atrophy. Furthermore, axonal degeneration mediated the negative effects of old age, male sex, and white matter lesions, and in part also amyloid and tau pathology, on cognition over time when accounting for cortical atrophy.
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Affiliation(s)
- Anna Linnéa Svenningsson
- grid.4514.40000 0001 0930 2361Clinical Memory Research Unit, Department of Clinical Sciences Malmö, Lund University, SE 205 02 Malmö, Sweden ,grid.411843.b0000 0004 0623 9987Memory Clinic, Skåne University Hospital, Malmö, Sweden
| | - Erik Stomrud
- grid.4514.40000 0001 0930 2361Clinical Memory Research Unit, Department of Clinical Sciences Malmö, Lund University, SE 205 02 Malmö, Sweden ,grid.411843.b0000 0004 0623 9987Memory Clinic, Skåne University Hospital, Malmö, Sweden
| | - Sebastian Palmqvist
- grid.4514.40000 0001 0930 2361Clinical Memory Research Unit, Department of Clinical Sciences Malmö, Lund University, SE 205 02 Malmö, Sweden ,grid.411843.b0000 0004 0623 9987Memory Clinic, Skåne University Hospital, Malmö, Sweden
| | - Oskar Hansson
- grid.4514.40000 0001 0930 2361Clinical Memory Research Unit, Department of Clinical Sciences Malmö, Lund University, SE 205 02 Malmö, Sweden ,grid.411843.b0000 0004 0623 9987Memory Clinic, Skåne University Hospital, Malmö, Sweden
| | - Rik Ossenkoppele
- grid.4514.40000 0001 0930 2361Clinical Memory Research Unit, Department of Clinical Sciences Malmö, Lund University, SE 205 02 Malmö, Sweden ,grid.484519.5Alzheimer Center Amsterdam, Department of Neurology, Amsterdam University Medical Center, Amsterdam Neuroscience, Amsterdam, Netherlands
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The unilateral hemispatial neglect phenomenon in right hemiplegia. Turk J Phys Med Rehabil 2022; 68:426-429. [DOI: 10.5606/tftrd.2022.6618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 05/20/2021] [Indexed: 11/25/2022] Open
Abstract
One of the most important perceptual function disorders following a cerebrovascular accident (CVA) is the unilateral hemispatial neglect phenomenon (UHNP). In this case report, we present a 73-year-old male patient with UHNP accompanying right hemiplegia, which was identified with detailed examination. Clinical picture was characterized by right-sided hemiparesis in the upper right shoulder and relative weakness in the right leg. Patient was tested on hemineglect (HN) with star cancellation test and detailed neuropsychological evaluation. This article highlight the latest findings regarding the cognitive–behavioral syndrome of neglect for hemiplegia that occur following left hemisphere stroke.
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Sharma S, Prajapati V, Sharma A, Tan BYQ, Sharma VK. Hearing Impairment in Stroke Patients- Findings from a Pilot Study Conducted in India. Indian J Otolaryngol Head Neck Surg 2022; 74:651-657. [PMID: 36032885 PMCID: PMC9411442 DOI: 10.1007/s12070-021-02474-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 02/16/2021] [Indexed: 10/22/2022] Open
Abstract
Auditory processing difficulties and hearing loss have been reported among stroke survivors, but is largely neglected. Post-stroke hearing impairment may affect communication between stroke survivors and healthcare professionals, thereby restricting rehabilitation and long-term patient outcome. In this prospective pilot study, we sought to determine the prevalence and pattern of hearing loss in stroke patients when compared to age and sex matched controls. 50 consecutive patients with first-ever stroke, both hemorrhagic and ischemic, and a comparison cohort of 50 age and sex matched controls were assessed. Pure Tone Audiogram was performed in all patients within 15 days of stroke onset and mean hearing loss was determined. Mean audiometric threshold was significantly higher in both ears in stroke patients (mean 44.0 ± 12.1 dB) when compared to the control subjects (36.1 ± 11.4 dB; p = 0.001). After adjusting for Diabetes mellitus and hypertension, sensorineural hearing loss was more common and severe in stroke compared to controls (p < 0.005). Most of the strokes were ischemic and involved middle cerebral artery territory. A modest correlation between hearing threshold and stroke severity in both ears was seen (mean B 0.775, R2 0.54, CI 0.122-1.427, p = 0.020). Our pilot study shows significant hearing impairment in patients with stroke, compared to age and sex matched controls with similar prevalence of cardiovascular risk factors, interestingly seen in a predominantly anterior circulation stroke population. Undetected hearing loss may impact post stroke functional recovery. Hence, current rehabilitation guidelines should include auditory screening in all patients of stroke for detection of hearing loss.
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Campbell A, Gustafsson L, Gullo H, Summers M, Rosbergen I, Grimley R. Uncharted territory: The feasibility of serial computerised cognitive assessment the first week post-stroke. J Stroke Cerebrovasc Dis 2022; 31:106614. [PMID: 35858514 DOI: 10.1016/j.jstrokecerebrovasdis.2022.106614] [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: 01/25/2022] [Revised: 06/05/2022] [Accepted: 06/20/2022] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Cognitive impairment is common and problematic post-stroke, yet vital information to understand early cognitive recovery is lacking. To examine early cognitive recovery, it is first necessary to establish the feasibility of repeat cognitive assessment during the acute post-stroke phase. OBJECTIVE To determine if serial computerised testing is feasible for cognitive assessment in an acute post-stroke phase, measured by assessment completion rates. METHOD An observational cohort study recruited consecutive stroke patients admitted to an acute stroke unit within 48 hours of onset. Daily assessment with the Cambridge Neuropsychological Test Automated Battery (CANTAB) was performed for seven days, and single Montreal Cognitive Assessment (MoCA). RESULTS Seventy-one participants were recruited, mean age 74 years, with 67 completing daily testing. Participants had predominantly mild (85%; NIHSS ≤6), ischemic (90%) stroke, 32% demonstrated clinical delirium. The first day of testing, 76% of participants completed CANTAB batteries. Eighty-seven percent of participants completed MoCA a mean of 3.4 days post-stroke. The proportion of CANTAB batteries completed improved significantly from day 2 to day 3 post-stroke with test completion rates stabilizing ≥ 92% by day 4. Participants with incomplete CANTAB were older, with persisting delirium, and longer stay in acute care. CONCLUSION Serial computerised cognitive assessments are feasible the first week post-stroke and provide a novel approach to measuring cognitive change for both clinical and research purposes. Maximum completion rates by day four have clinical implications for optimal timing of cognitive testing.
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Affiliation(s)
- Alana Campbell
- Brisbane, Queensland, Australia; and Queensland Health (Sunshine Coast Hospital and Health Service), The University of Queensland (School of Health and Rehabilitation Sciences), Sunshine Coast, QLD, Australia.
| | - Louise Gustafsson
- Griffith University (School of Health Sciences and Social Work), Brisbane, QLD, Australia
| | - Hannah Gullo
- The University of Queensland (School of Health and Rehabilitation Sciences), Brisbane, QLD, Australia
| | - Mathew Summers
- University of the Sunshine Coast (School of Health and Behavioural Sciences), Sunshine Coast, QLD, Australia
| | - Ingrid Rosbergen
- Surgical Treatment and Rehabilitation Service (STARS), The University of Queensland and Metro North Health, Brisbane, QLD, Australia
| | - Rohan Grimley
- Griffith University and Queensland Health (Sunshine Coast Hospital and Health Service), Sunshine Coast, Queensland, Australia
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Lau SCL, Connor LT, Heinemann AW, Baum CM. Cognition and Daily Life Activities in Stroke: A Network Analysis. OTJR-OCCUPATION PARTICIPATION AND HEALTH 2022; 42:260-268. [PMID: 35838366 DOI: 10.1177/15394492221111730] [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: 11/17/2022]
Abstract
Understanding complex dynamics of cognitive constructs and the interplay between cognition and daily life activities is possible through network analysis. The objectives of this study are to characterize the cognition network and identify central cognitive constructs, and identify the cognitive constructs bridging cognition and daily life activities. In 210 community-dwelling stroke survivors, we employed network analysis to characterize the cognition network, identify the central cognitive constructs, and examine the bridge pathway connecting cognition and daily life activities. Cognitive constructs were positively correlated within the network, forming clusters of fluid (e.g., components of active problem-solving), crystallized (e.g., world knowledge), and functional cognition. Central constructs included inhibition, organization, and cognitive flexibility, whereas bridge constructs included organization, sequencing, and inhibition. Central and bridge constructs identified by this study are potential targets for future research and intervention. The emergence of functional cognition as central and bridge constructs may support its inclusion in occupational therapy practice.
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Affiliation(s)
- Stephen C L Lau
- Washington University School of Medicine, St. Louis, MO, USA
| | | | - Allen W Heinemann
- Shirley Ryan AbilityLab, Chicago, IL, USA.,Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Carolyn M Baum
- Washington University School of Medicine, St. Louis, MO, USA.,Washington University in St. Louis, MO, USA
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Wijeratne T, Sales C, Wijeratne C, Karimi L, Jakovljevic M. Systematic Review of Existing Stroke Guidelines: Case for a Change. BIOMED RESEARCH INTERNATIONAL 2022; 2022:5514793. [PMID: 35722461 PMCID: PMC9199531 DOI: 10.1155/2022/5514793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 03/07/2022] [Indexed: 11/30/2022]
Abstract
Methods We systematically searched for guideline recommendation on the day-to-day use of peripheral inflammatory markers such as NLR published in the English language between January 1, 2005, and October 2020. Any other evidence of system biology-based approach or recommendation was explored within the selected guidelines for this scoping review. Only the latest guideline per writing group was selected. Each guideline was analyzed independently by 2 to 4 authors to determine clinical scenarios explained/given, scientific evidence used, and recommendations presented in the context of system biology. Results The scoping review found 2,911 titles at the beginning of the search. Final review included with 15 guidelines. Stroke-related organizations wrote sixty-five percent of the guidelines while national ministries wrote a fewer number of guidelines. We were primarily interested in recommendations for acute management in AIS published in the English language. Fifteen eligible guidelines were identified from 15 different countries/regions. None of the guidelines recommended the routine use of peripheral markers of inflammation, such as NLR, among their acute assessment and management recommendations. None of the existing guidelines explored the system biology approach to one of the most complex diseases affecting the human brain, stroke. Conclusions This systematic review has identified a significant evidence-practice gap in all existing national stroke guidelines published in English medium as of October 2020. These guidelines included the only current "living stroke guidelines," stroke guidelines from Australia with a real opportunity to modernize the living stroke guidelines with systems biology approach, and provide 2020 vision towards better stroke care globally. Investigation of complex disease such as stroke is best served through a systems biology approach. One of the easiest places to start is simple blood tests such as total white cell count and NLR. Systems biology approach point us towards simple tools such immune-inflammatory index (SII) and serial systemic immune inflammatory indices (SSIIi) which should pave the way for the stroke physician community address the challenges in systems biology approach in stroke care. These challenges include translating bench research to the bedside, managing big data (continuous pulse, blood pressure, sleep, oxygen saturation, progressive changes in NLR, SII, SSIIi, etc.). Working with an interdisciplinary team also provides a distinct advantage. Recent adoption of historic WHO-IGAP calls for immediate action. The 2022 World Brain Day campaign on Brain Health for All is the perfect opportunity to raise awareness and start the process.
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Affiliation(s)
- Tissa Wijeratne
- School of Applied Health, Department of Psychology, RMIT University, Melbourne, Australia
- Department of Medicine, Faculty of Medicine, University of Rajarata, Saliyapura, Anuradhapura, Sri Lanka
- Department of Neurology, Western Health & University of Melbourne, AIMSS, Level Three, WHCRE, Sunshine Hospital, St Albans, 3021, Australia
| | - Carmela Sales
- School of Applied Health, Department of Psychology, RMIT University, Melbourne, Australia
- Department of Neurology, Western Health & University of Melbourne, AIMSS, Level Three, WHCRE, Sunshine Hospital, St Albans, 3021, Australia
| | | | - Leila Karimi
- School of Applied Health, Department of Psychology, RMIT University, Melbourne, Australia
- Department of Neurology, Western Health & University of Melbourne, AIMSS, Level Three, WHCRE, Sunshine Hospital, St Albans, 3021, Australia
- Faculty of Social and Political Sciences, Tbilisi State University, Georgia
| | - Mihajlo Jakovljevic
- Institute of Advanced Manufacturing Technologies, Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
- Institute of Comparative Economic Studies, Hosei University Chiyoda, Japan
- Department of Global Health Economics and Policy, University of Kragujevac, Serbia
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Kang ES, Yook JS, Ha MS. Breathing Exercises for Improving Cognitive Function in Patients with Stroke. J Clin Med 2022; 11:jcm11102888. [PMID: 35629013 PMCID: PMC9144753 DOI: 10.3390/jcm11102888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 05/05/2022] [Accepted: 05/18/2022] [Indexed: 02/04/2023] Open
Abstract
Patients with stroke may experience a certain degree of cognitive decline during the period of recovery, and a considerable number of such patients have been reported to show permanent cognitive damage. Therefore, the period of recovery and rehabilitation following stroke is critical for rapid cognitive functional improvements. As dysfunctional breathing has been reported as one of the factors affecting the quality of life post stroke, a number of studies have focused on the need for improving the breathing function in these patients. Numerous breathing exercises have been reported to enhance the respiratory, pulmonary, cognitive, and psychological functions. However, scientific evidence on the underlying mechanisms by which these exercises improve cognitive function is scattered at best. Therefore, it has been difficult to establish a protocol of breathing exercises for patients with stroke. In this review, we summarize the psychological, vascular, sleep-related, and biochemical factors influencing cognition in patients and highlight the need for breathing exercises based on existing studies. Breathing exercises are expected to contribute to improvements in cognitive function in stroke based on a diverse array of supporting evidence. With relevant follow-up studies, a protocol of breathing exercises can be developed for improving the cognitive function in patients with stroke.
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Affiliation(s)
- Eui-Soo Kang
- Department of Sports Science Convergence-Graduate School, Dongguk University-Seoul, 30, Pildong-ro 1-gil, Jung-gu, Seoul 04620, Korea;
| | - Jang Soo Yook
- Center for Functional Connectomics, Brain Research Institute, Korea Institute of Science and Technology (KIST), Hwarang-ro 14-gil 5, Seongbuk-gu, Seoul 02792, Korea;
| | - Min-Seong Ha
- Department of Sports Culture, College of the Arts, Dongguk University-Seoul, 30, Pildong-ro 1-gil, Jung-gu, Seoul 04620, Korea
- Correspondence: ; Tel.: +82-2-2290-1926
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Lin H, Liu H, Dai Y, Yin X, Li Z, Yang L, Tao J, Liu W, Chen L. Effect of Physical Activity on Cognitive Impairment in Patients With Cerebrovascular Diseases: A Systematic Review and Meta-Analysis. Front Neurol 2022; 13:854158. [PMID: 35599737 PMCID: PMC9120585 DOI: 10.3389/fneur.2022.854158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 03/07/2022] [Indexed: 11/13/2022] Open
Abstract
Background and Purpose This study investigates the effect of physical activity (PA) on cognition in patients with cerebrovascular disease and explored the maximum benefit of different PA characteristics. Methods Databases, such as Pubmed, Web of Science, Embase, and Cochrane Library, were searched from their inception to May 31, 2021. Standardized mean difference (SMD) and 95% confidence intervals (CIs) were calculated to generate a forest plot. In addition, subgroup analysis, moderation analysis, and regression analysis were performed to explore the possible adjustment factors. Results In total, 22 studies that met the criteria were included, demonstrating data from 1,601 participants. The results indicated that PA produced a positive effect on the global cognition for patients with cerebrovascular disease (SMD: 0.20 [95% CI: 0.12-0.27]), at the same time, PA training prominently improved executive function (SMD: 0.09 [95% CI: 0.00-0.17]) and working memory (SMD: 0.25 [95% CI: 0.10-0.40]). Furthermore, patients with baseline cognitive impairment received the greater benefit of PA on cognition (SMD: 0.24 [95% CI: 0.14-0.34]) than those without cognitive impairment before intervention (SMD: 0.15 [95% CI: 0.04-0.26]). For patients in the acute stage (≤ 3 months), PA did not rescue impairment dysfunction significantly (SMD: 0.08 [95% CI: -0.04-0.21]) and remarkable cognitive gains were detected in the chronic stage of participants (>3 months) (SMD: 0.25 [95% CI: 0.16-0.35]). Moderate intensity PA showed a larger pooled effect size (SMD: 0.23 [95% CI: 0.11-0.36]) than low intensity (SMD: -0.01 [95% CI: -0.44-0.43]) and high intensity (SMD: 0.16 [95% CI: 0.03-0.29]). However, the different types, duration, and frequency of PA resulted in no differences in the improvement of cognitive function. Further regression analysis demonstrated that the beneficial effects of PA on cognition are negatively correlated with age (p < 0.05). Conclusions This study revealed that PA can prominently improve the cognitive ability in patients with cerebrovascular diseases and strengthened the evidence that PA held promise as a widely accessible and effective non-drug therapy for vascular cognitive impairment (VCI).
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Affiliation(s)
- Huawei Lin
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - HuanHuan Liu
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Yaling Dai
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Xiaolong Yin
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Zuanfang Li
- National-Local Joint Engineering Research Center of Rehabilitation Medicine Technology, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Lei Yang
- National-Local Joint Engineering Research Center of Rehabilitation Medicine Technology, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Jing Tao
- The Academy of Rehabilitation Industry, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Weilin Liu
- The Academy of Rehabilitation Industry, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Lidian Chen
- The Academy of Rehabilitation Industry, Fujian University of Traditional Chinese Medicine, Fuzhou, China
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A New Nomogram Model for Individualized Prediction of Cognitive Impairment in Patients with Acute Ischemic Stroke. J Stroke Cerebrovasc Dis 2022; 31:106515. [PMID: 35490470 DOI: 10.1016/j.jstrokecerebrovasdis.2022.106515] [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: 12/28/2021] [Revised: 03/24/2022] [Accepted: 04/11/2022] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Cognitive impairment is a common symptom after ischemic stroke. Such symptom can cause effect on rehabilitation of patients and their quality of life and. As stroke rapidly growth on nowadays, a reliable scoring tool to detect the risk of cognitive impairment after stroke is now being put on the first place. METHODS We enrolled patients with acute ischemic stroke (AIS) as samples and hospitalized all at the First Affiliated Hospital of Soochow University between October 2018 and June 2020. All patients were assessed by the Montreal Cognitive Assessment (MoCA) scales and MoCA score < 26 was defined as standard to have having cognitive impairment. All patients were randomly (7:3) divided into two cohorts: the primary ones and the validated ones. Based on multivariate logistic model, the independent predictors of cognitive impairment in the acute phase were identified. The predictive nomogram was generated and evaluated by Harrell's concordance index (C-index) and calibration plot both in two cohorts, respectively. RESULTS A total of 191 patients were enrolled, of whom 135 comprised the primary cohort and 56 comprised the validated cohort. Gender, age, baseline NIHSS score, hyperhomocysteinemia (HHcy) and multiple lesions were independently associated with acute cognitive impairment after stroke and included to construct the nomogram. The nomogram derived from the primary cohort had an Area Under Curve (AUC) of 0.773 and the validated ones had an AUC of 0.859. Calibration plot revealed adequate fit of the nomogram in predictive value. CONCLUSION The new nomogram based on gender, age, baseline NIHSS score, HHcy and multiple lesions gave rise to an accurate and comprehensive prediction for cognitive impairment in AIS patients. After further validation, it could potentially be a reliable forecasting tool.
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Sarfo FS, Ovbiagele B. Utilizing Implementation Science to Bridge Cerebrovascular Health Disparities: a Local to Global Perspective. Curr Neurol Neurosci Rep 2022; 22:293-303. [PMID: 35381952 PMCID: PMC9081275 DOI: 10.1007/s11910-022-01193-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/06/2022] [Indexed: 01/15/2023]
Abstract
PURPOSE OF REVIEW Stroke is a prime example of a medical disorder whose incidence, prevalence, and outcomes are strongly characterized by health disparities across the globe. This scoping literature review seeks to depict how implementation science could be utilized to advance health equity in the prevention, acute treatment, and post-acute management of stroke in the underserved regions of high-income countries as well as in all low-income countries. RECENT FINDINGS A major reason for the persisting and widening cerebrovascular disease disparities is that evidence-based stroke prevention and treatment interventions have been differentially translated (if at all) to various populations and settings. The field of implementation science is endowed with frameworks, theories, methodological approaches, and outcome measures, including equity indices, which could be harnessed to facilitate the translation of evidence-based interventions into clinical practice for underserved and vulnerable communities. Encouragingly, there are several novel frameworks, which eminently merge implementation science constructs with health equity determinants, thereby opening up key opportunities to bridge burgeoning worldwide gaps in cerebrovascular health equity.
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Affiliation(s)
- Fred Stephen Sarfo
- Department of Medicine, Kwame Nkrumah University of Science & Technology, Private Mail Bag, Kumasi, Ghana.
- Department of Medicine, Komfo Anokye Teaching Hospital, Kumasi, Ghana.
| | - Bruce Ovbiagele
- Department of Neurology, University of California, San Francisco, USA
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Stewart CE, Branyan TE, Sampath D, Sohrabji F. Sex Differences in the Long-Term Consequences of Stroke. Curr Top Behav Neurosci 2022; 62:287-308. [PMID: 35332459 DOI: 10.1007/7854_2022_311] [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: 11/24/2022]
Abstract
Stroke is the fifth leading cause of death and as healthcare intervention improves, the number of stroke survivors has also increased. Furthermore, there exists a subgroup of younger adults, who suffer stroke and survive. Given the overall improved survival rate, bettering our understanding of long-term stroke outcomes is critical. In this review we will explore the causes and challenges of known long-term consequences of stroke and if present, their corresponding sex differences in both old and young survivors. We have separated these long-term post-stroke consequences into three categories: mobility and muscle weakness, memory and cognitive deficits, and mental health and mood. Lastly, we discuss the potential of common preclinical stroke models to contribute to our understanding of long-term outcomes following stroke.
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Affiliation(s)
- Courtney E Stewart
- Women's Health in Neuroscience Program, Neuroscience and Experimental Therapeutics, Texas A&M Health Science Center College of Medicine, Bryan, TX, USA
| | - Taylor E Branyan
- Women's Health in Neuroscience Program, Neuroscience and Experimental Therapeutics, Texas A&M Health Science Center College of Medicine, Bryan, TX, USA.,Texas A&M Institute for Neuroscience, College Station, TX, USA
| | - Dayalan Sampath
- Women's Health in Neuroscience Program, Neuroscience and Experimental Therapeutics, Texas A&M Health Science Center College of Medicine, Bryan, TX, USA
| | - Farida Sohrabji
- Women's Health in Neuroscience Program, Neuroscience and Experimental Therapeutics, Texas A&M Health Science Center College of Medicine, Bryan, TX, USA. .,Texas A&M Institute for Neuroscience, College Station, TX, USA.
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Obstructive sleep apnea is associated with cognitive impairment in minor ischemic stroke. Sleep Breath 2022; 26:1907-1914. [DOI: 10.1007/s11325-022-02575-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 01/27/2022] [Accepted: 01/28/2022] [Indexed: 11/30/2022]
Abstract
Abstract
Objectives
Obstructive sleep apnea (OSA) is commonly seen in stroke patients, and its relationship with cognitive impairment remains poorly understood. This study aimed to explore the roles of OSA in cognition impairment in patients with minor ischemic stroke.
Methods
Patients with minor ischemic stroke were consecutively enrolled from January 2020 to May 2021. Every patient underwent polysomnography (PSG) to assess for OSA. Based on the apnea hypopnea index (AHI), patients were grouped into the no OSA (AHI < 5), mild OSA (5 ≤ AHI < 15), and moderate-to-severe OSA (MS OSA, AHI ≥ 15) groups. Neuropsychological assessments were performed to evaluate cognitive function, and the correlations between cognitive function and OSA were investigated.
Results
Of 94 patients, 35 had no OSA, 32 had mild OSA, and 27 had moderate-to-severe OSA. Compared to the no or mild OSA groups, the moderate-to-severe OSA group performed worse on the Chinese version of the Auditory Verbal Learning Test (CAVLT)-Recognition (p < 0.001), Digital Span Test (DST)-Backward (p < 0.001), Montreal Cognitive Assessment (MoCA) (p < 0.001), and Stroop Color and Word Test (SCWT)-Interference (p < 0.001). The severity of cognitive impairment was assessed using the MoCA, which was negatively related to the AHI (p = 0.041) and lowest SpO2 (p = 0.048).
Conclusions
The findings suggest that OSA has significant effects on cognition impairment in patients with minor ischemic stroke and that hypoxemia may be a potential pathophysiological mechanism of OSA-induced cognitive impairment.
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Shen W, Fan X, Wang L, Zhang Y. Traditional Chinese Medicine for Post-Stroke Cognitive Impairment: A Systematic Review and Meta-Analysis. Front Pharmacol 2022; 13:816333. [PMID: 35237166 PMCID: PMC8883343 DOI: 10.3389/fphar.2022.816333] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 01/18/2022] [Indexed: 12/29/2022] Open
Abstract
Background: Post-stroke cognitive impairment (PSCI) affects more than one-third of stroke patients, and causes much greater harm to long-term function than the initial brain damage. No conventional Western medications have shown convincing clinical effectiveness for treating PSCI. Research shows that Traditional Chinese medicine (TCM) can improve cognitive function in patients. However, the clinical efficacy and safety remain controversial. The aim of this study was to examine the effectiveness and harmful effects of TCMs in the treatment of PSCI. Method: We searched seven databases and two clinical registration websites for randomized controlled trials (RCTs). The revised Cochrane risk of bias tool (RoB 2.0) was used to evaluate the methodological quality and RevMan 5.4 was used for data analysis. This study has been submitted to PROSPERO with registration number is CRD42020149299. Results: We included 34 studies in this review. The results of this study showed that TCM adjuvant therapy improved scores on the MoCA [MD = 2.55, 95% CI (1.56, 3.53), p < 0.00001; MD = 3.07, 95% CI (1.98, 4.17), p < 0.00001 at treatment duration of <3 and 3 months, respectively], MMSE [MD = 2.55, 95% CI (1.99, 3.10), p < 0.00001; MD = 2.53, 95% CI (1.59, 3.47), p < 0.00001; MD = 2.91, 95% CI (1.26, 4.56), p = 0.0006; MD = 3.11, 95% CI (-0.04, 6.27), p = 0.05 at treatment duration of <3, 3, 4, and 6 months, respectively], and BI [MD = 7.34, 95% CI (3.83, 10.85), p < 0.0001; MD = 8.98, 95% CI (4.76, 13.21), p < 0.0001 at treatment duration of <3 and 3 months, respectively] and reduced scores on the ADL (MD = -8.64, 95% CI (-9.83, -7.45), p < 0.00001; MD = -2.00, 95% CI (-2.94, -1.06), p < 0.0001 at treatment duration of 3 and 4 months, respectively], NIHSS [MD = -2.48, 95% CI (-4.97, 0.00), p = 0.05; MD = -3.81, 95% CI (-6.21, -1.40), p = 0.002 at treatment duration of <3 and 3 months, respectively], and CSS [MD = -2.47, 95% CI (-3.49, -1.45), p < 0.00001 at a treatment duration of 3 months]. No serious adverse reactions were observed. Conclusion: Despite the significant positive results, the present evidence supports, to a limited extent because of the methodological flaws and herbal heterogeneity, that TCM adjuvant therapy can be used for patients with PSCI. While, further rigorous RCTs are warranted to confirm the efficacy and safety of TCM. Systematic Review Registration: https://www.crd.york.ac.uk/prospero, identifier CRD42020149299.
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Affiliation(s)
- Wei Shen
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Xueming Fan
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Liuding Wang
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yunling Zhang
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
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Manoli R, Chartaux-Danjou L, Delecroix H, Daveluy W, Torre F, Moroni C. The relationship between cognition and vocational training outcome in patients with acquired brain injury: Contribution of Machine Learning. APPLIED NEUROPSYCHOLOGY. ADULT 2022; 29:212-222. [PMID: 32142616 DOI: 10.1080/23279095.2020.1734809] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The aim of this study was to identify specific cognitive patterns related to long-term vocational training outcome. Records of twenty-eight patients who had benefited from a professional rehabilitation program were retrospectively processed. Screening through machine learning algorithms of patients' neuropsychological scores identified cognitive patterns related to both vocational training outcomes: succeeded or failed. These patterns were based on cognitive performance intervals even if the cognitive ability was not impaired. The cognitive pattern related to a successful vocational training included performance intervals on measures underlying verbal memory consolidation, visual memory incidental recall, problem solving and planning abilities. The cognitive pattern explaining failure of vocational training included performance intervals on tasks involving planning and problem solving abilities. From a comprehensive neuropsychological battery, memory and executive measures appeared to be the best attributes related to the vocational training outcome in patients with brain injury. Even with a cognitive functioning above the pathological cutoff, patients suffering from a brain injury could fail a vocational training. The attributes related to the vocational training outcome would be more a specific level of cognitive functioning rather than an interpretation of neuropsychological scores only based on a normal versus pathological distinction.
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Affiliation(s)
- Romina Manoli
- EA 4072 - PSITEC - Psychologie: Interactions, Temps, Emotions, Cognition, University of Lille, Lille, France
| | | | - Helene Delecroix
- EA 4072 - PSITEC - Psychologie: Interactions, Temps, Emotions, Cognition, University of Lille, Lille, France
- UEROS Lille, UGECAM Hauts-de-France, Lille, France
| | | | - Fabien Torre
- Centre de Recherche en Informatique, Signal et Automatique de Lille (CRIStAL), University of Lille, Lille, France
| | - Christine Moroni
- EA 4072 - PSITEC - Psychologie: Interactions, Temps, Emotions, Cognition, University of Lille, Lille, France
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O'Donoghue M, Leahy S, Boland P, Galvin R, McManus J, Hayes S. Rehabilitation of Cognitive Deficits Poststroke: Systematic Review and Meta-Analysis of Randomized Controlled Trials. Stroke 2022; 53:1700-1710. [PMID: 35109684 DOI: 10.1161/strokeaha.121.034218] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Despite the prevalence of cognitive impairment poststroke, there is uncertainty regarding interventions to improve cognitive function poststroke. This systematic review and meta-analysis evaluate the effectiveness of rehabilitation interventions across multiple domains of cognitive function. METHODS Five databases were searched from inception to August 2019. Eligible studies included randomized controlled trials of rehabilitation interventions for people with stroke when compared with other active interventions or standard care where cognitive function was an outcome. RESULTS Sixty-four randomized controlled trials (n=4005 participants) were included. Multiple component interventions improved general cognitive functioning (MD, 1.56 [95% CI, 0.69-2.43]) and memory (standardized MD, 0.49 [95% CI, 0.27-0.72]) compared with standard care. Physical activity interventions improved neglect (MD, 13.99 [95% CI, 12.67-15.32]) and balance (MD, 2.97 [95% CI, 0.71-5.23]) compared with active controls. Noninvasive brain stimulation impacted neglect (MD, 20.79 [95% CI, 14.53-27.04) and functional status (MD, 14.02 [95% CI, 8.41-19.62]) compared with active controls. Neither cognitive rehabilitation (MD, 0.37 [95% CI, -0.94 to 1.69]) nor occupational-based interventions (MD, 0.45 [95% CI, -1.33 to 2.23]) had a significant effect on cognitive function compared with standard care. CONCLUSIONS There is some evidence to support multiple component interventions, physical activity interventions, and noninvasive brain stimulation improving cognitive function poststroke. Findings must be interpreted with caution given the overall moderate to high risk of bias, heterogeneity of interventions, and outcome measures across studies.
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Affiliation(s)
- Mairead O'Donoghue
- School of Allied Health, Ageing Research Centre, Faculty of Education and Health Sciences, Health Research Institute, University of Limerick, Ireland (M.O.D., S.L., P.B., R.G., S.H.)
| | - Siobhan Leahy
- School of Allied Health, Ageing Research Centre, Faculty of Education and Health Sciences, Health Research Institute, University of Limerick, Ireland (M.O.D., S.L., P.B., R.G., S.H.)
| | - Pauline Boland
- School of Allied Health, Ageing Research Centre, Faculty of Education and Health Sciences, Health Research Institute, University of Limerick, Ireland (M.O.D., S.L., P.B., R.G., S.H.)
| | - Rose Galvin
- School of Allied Health, Ageing Research Centre, Faculty of Education and Health Sciences, Health Research Institute, University of Limerick, Ireland (M.O.D., S.L., P.B., R.G., S.H.)
| | - John McManus
- Geriatric and Stroke Medicine, University Hospital Limerick, Ireland (J.M.)
| | - Sara Hayes
- School of Allied Health, Ageing Research Centre, Faculty of Education and Health Sciences, Health Research Institute, University of Limerick, Ireland (M.O.D., S.L., P.B., R.G., S.H.)
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Pasotti F, De Luca G, Aiello EN, Gramegna C, Di Gangi M, Foderaro G, Gallucci M, Biglia E, Bottini G. A multi-component, adaptive Working Memory Assessment Battery (WoMAB): validation and norms in an Italian population sample. Neurol Sci 2022; 43:985-992. [PMID: 34185185 PMCID: PMC8789625 DOI: 10.1007/s10072-021-05416-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 06/17/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND Working memory (WM) abilities are frequently impaired in neurological disorders affecting fronto-parietal cortical/sub-cortical structures. WM deficits negatively influence interventional outcomes and everyday functioning. This study thus aimed at the following: (a) developing and standardizing an ecologically valid task for WM assessment ( Ice Cream Test, ICT); (b) validating and norming a novel WM test (Digit Ordering Test, DOT), as well as providing updated norms for digit span (DS) tasks, in an Italian population sample; (c) introducing a novel scoring procedure for measuring WM. METHODS One-hundred and sixty-eight Italian healthy participants-73 male, 95 females; age: 48.4 ± 19.1 (18-86); education: 12.1 ± 4.8 (4-21)-underwent a thorough WM assessment-DOT, ICT, and both forward and backward DS tasks (FDS, BDS). The ICT requires participants to act as waiters who have to keep track of customers' orders. For each task, WM and total (T) outcomes were computed, i.e., the number of elements in the longest sequence and that of recalled sequences, respectively. Norms were derived via the equivalent score (ES) method. RESULTS DS ratios (DSRs) were computed for both WM/S and T outcomes on raw DS measures (BDS divided by FDS). Age and education significantly predicted all WM tasks; sex affected FDS and DSR-T scores (males > females). WM measures were highly internally related. DISCUSSION The present work provides Italian practitioners with a normatively updated, multi-component, adaptive battery for WM assessment (WoMAB) as well as with novel outcomes which capture different WM facets-WM capacity and attentive monitoring abilities.
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Affiliation(s)
- Fabrizio Pasotti
- Department of Brain and Behavioural Sciences, University of Pavia, Pavia, Italy
| | - Giulia De Luca
- Department of Brain and Behavioural Sciences, University of Pavia, Pavia, Italy
| | - Edoardo Nicolò Aiello
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
- PhD in Neuroscience, University of Milano-Bicocca, Monza, Italy
| | - Chiara Gramegna
- Department of Psychology, University of Milano-Bicocca, Milano, Italy
| | - Marco Di Gangi
- Studio Di Gangi & Vicini Psicologia Psicoterapia e Neuropsicologia, Minusio, Switzerland
| | - Giuseppe Foderaro
- Neurocentro Della Svizzera Italiana, Ente Ospedaliero Cantonale Ospedale Regionale Di Lugano, Lugano, Switzerland
| | - Marcello Gallucci
- Department of Psychology, University of Milano-Bicocca, Milano, Italy
- Milan Center for Neuroscience (NeuroMI), Milano, Italy
| | - Elena Biglia
- Neurocentro Della Svizzera Italiana, Ente Ospedaliero Cantonale Ospedale Regionale Di Lugano, Lugano, Switzerland
| | - Gabriella Bottini
- Department of Brain and Behavioural Sciences, University of Pavia, Pavia, Italy
- Milan Center for Neuroscience (NeuroMI), Milano, Italy
- Cognitive Neuropsychology Centre, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
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Sathananthan N, Morris EMJ, Gillanders D, Knox L, Dimech-Betancourt B, Wright BJ, das Nair R, Wong D. Does Integrating Cognitive and Psychological Interventions Enhance Wellbeing After Acquired Brain Injury? Study Protocol for a Phase II Randomized Controlled Trial of the VaLiANT (Valued Living After Neurological Trauma) Group Program. FRONTIERS IN REHABILITATION SCIENCES 2022; 2:815111. [PMID: 36188858 PMCID: PMC9397748 DOI: 10.3389/fresc.2021.815111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 12/29/2021] [Indexed: 11/13/2022]
Abstract
Background and Objectives Cognitive and emotional changes affect the majority of individuals with acquired brain injury (ABI) and are associated with poorer outcomes. The evidence for “siloed” rehabilitation approaches targeting cognition and mood separately remains mixed. Valued living (i.e., acting consistently with personal values) is associated with better psychological functioning and participation in work and other productive activities. Rehabilitation interventions that concurrently address cognitive and emotional barriers to valued living may therefore result in improved outcomes. VaLiANT (Valued Living After Neurological Trauma) is an 8-week group intervention developed by our team, which uniquely combines cognitive rehabilitation and psychological therapy to improve wellbeing and meaningful participation (i.e., valued living) following ABI. Method This protocol describes the design and implementation of a Phase II parallel-group randomized controlled trial with blinded outcome assessors, to evaluate the potential efficacy of VaLiANT and the feasibility of a Phase III trial. Participants are adults with a history of ABI at least 3 months prior to study entry, who experience cognitive and/or emotional difficulties and associated reduced participation in valued activities. Random allocation to the treatment condition (8-week VaLiANT group program) or a usual care waitlist control condition occurs at a 2:1 treatment: control ratio. The primary outcome is wellbeing, measured by the Warwick-Edinburgh Mental Wellbeing Scale. Secondary outcomes include measures of valued living, mood, cognitive complaints, quality of life, community participation, post-traumatic growth, and self-efficacy. All measures are collected across three time points by blinded assessors (baseline, 8-week follow-up, 16-week follow-up). Trial feasibility will be evaluated against recruitment rates, drop-out rates, intervention acceptability, and treatment fidelity (manual adherence and therapist competence). Discussion This trial will extend current knowledge on how to improve long-term outcomes following ABI by evaluating an innovative integrated, multi-domain approach to rehabilitation concurrently addressing cognitive and emotional barriers to participation in meaningful life roles.
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Affiliation(s)
- Nick Sathananthan
- School of Psychology and Public Health, La Trobe University, Melbourne, VIC, Australia
| | - Eric M. J. Morris
- School of Psychology and Public Health, La Trobe University, Melbourne, VIC, Australia
| | - David Gillanders
- School of Health in Social Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Lucy Knox
- School of Psychology and Public Health, La Trobe University, Melbourne, VIC, Australia
| | | | - Bradley J. Wright
- School of Psychology and Public Health, La Trobe University, Melbourne, VIC, Australia
| | - Roshan das Nair
- Institute of Mental Health, University of Nottingham, Nottingham, United Kingdom
| | - Dana Wong
- School of Psychology and Public Health, La Trobe University, Melbourne, VIC, Australia
- *Correspondence: Dana Wong
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