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Post-stroke cognitive impairment

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https://www.readbyqxmd.com/read/29227260/factors-associated-with-post-stroke-fatigue-during-the-second-half-year-after-stroke
#1
M Delva, N Lytvynenko, I Delva
Post-stroke fatigue (PSF) is a common and often debilitating sequel of both ischemic and hemorrhagic strokes Aim - identify socio-demographic, personal and psychological factors associated with different PSF domains over the second half year after stroke occurrence. There were examined patients consequently in definite time points: at 6 months (156 patients), at 9 months (139 patients) and at 12 months (128 patients) after ischemic or hemorrhagic strokes. Global PSF and certain PSF domains (physical, mental, motivational, activity-related) were measured by multidimensional fatigue inventory-20 scale...
November 2017: Georgian Medical News
https://www.readbyqxmd.com/read/29221967/improving-cognitive-function-in-patients-with-stroke-can-computerized-training-be-the-future
#2
Rosaria De Luca, Simona Leonardi, Letteria Spadaro, Margherita Russo, Bianca Aragona, Michele Torrisi, Maria Grazia Maggio, Alessia Bramanti, Antonino Naro, Maria Cristina De Cola, Rocco Salvatore Calabrò
BACKGROUND: Cognitive impairment after stroke is common and can cause disability with a high impact on quality of life and independence. Cognitive rehabilitation is a therapeutic approach designed to improve cognitive functioning after central nervous system's injuries. Computerized cognitive rehabilitation (CCR) uses multimedia and informatics resources to optimize cognitive compromised performances. The aim of this study is to evaluate the effects of pc cognitive training with Erica software in patients with stroke...
December 5, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/29220386/does-cognitive-impairment-impact-adherence-a-systematic-review-and-meta-analysis-of-the-association-between-cognitive-impairment-and-medication-non-adherence-in-stroke
#3
Daniela Rohde, Niamh A Merriman, Frank Doyle, Kathleen Bennett, David Williams, Anne Hickey
BACKGROUND: While medication adherence is essential for the secondary prevention of stroke, it is often sub-optimal, and can be compromised by cognitive impairment. This study aimed to systematically review and meta-analyse the association between cognitive impairment and medication non-adherence in stroke. METHODS: A systematic literature search of longitudinal and cross-sectional studies of adults with any stroke type, which reported on the association between any measure of non-adherence and cognitive impairment, was carried out according to PRISMA guidelines...
2017: PloS One
https://www.readbyqxmd.com/read/29201811/the-characteristics-of-cognitive-impairment-and-their-effects-on-functional-outcome-after-inpatient-rehabilitation-in-subacute-stroke-patients
#4
Soo Ho Park, Min Kyun Sohn, Sungju Jee, Shin Seung Yang
Objective: To determine the frequency and characteristics of vascular cognitive impairment (VCI) in patients with subacute stroke who underwent inpatient rehabilitation and to analyze whether cognitive function can predict functional assessments after rehabilitation. Methods: We retrospectively reviewed the medical records of patients who were admitted to our rehabilitation center after experiencing a stroke between October 2014 and September 2015. We analyzed the data from 104 patients who completed neuropsychological assessments within 3 months after onset of a stroke...
October 2017: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/29163127/post-stroke-fatigue-and-depressive-symptoms-are-differentially-related-to-mobility-and-cognitive-performance
#5
Bradley J MacIntosh, Jodi D Edwards, Mani Kang, Hugo Cogo-Moreira, Joyce L Chen, George Mochizuki, Nathan Herrmann, Walter Swardfager
Background: Fatigue and depressive symptoms are common and often inter-related stroke sequelae. This study investigates how they are related, directly or indirectly, to mobility and cognitive outcomes within 6 months of stroke. Methods: Participants were recruited from 4 stroke centers in Ontario, Canada. Post-stroke fatigue was assessed using the Fatigue Assessment Scale (FAS). Depressive symptoms were screened using the Center for Epidemiological Studies Scale for Depression (CES-D). Factor analyses were used to construct scores from mobility (distance traveled during a 2-min walk test, Chedoke-McMaster Stroke Assessment leg score, and Berg Balance Scale total score) and cognitive (Montreal Cognitive Assessment, Trail-Making Tests A and B, and five-word free recall) tests...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/29159059/triangulation-of-language-cognitive-impairments-naming-errors-and-their-neural-bases-post-stroke
#6
Ajay D Halai, Anna M Woollams, Matthew A Lambon Ralph
In order to gain a better understanding of aphasia one must consider the complex combinations of language impairments along with the pattern of paraphasias. Despite the fact that both deficits and paraphasias feature in diagnostic criteria, most research has focused only on the lesion correlates of language deficits, with minimal attention on the pattern of patients' paraphasias. In this study, we used a data-driven approach (principal component analysis - PCA) to fuse patient impairments and their pattern of errors into one unified model of chronic post-stroke aphasia...
2018: NeuroImage: Clinical
https://www.readbyqxmd.com/read/29148855/effects-of-virtual-reality-based-training-with-bts-nirvana-on-functional-recovery-in-stroke-patients-preliminary-considerations
#7
Rosaria De Luca, Margherita Russo, Antonino Naro, Provvidenza Tomasello, Simona Leonardi, Floriana Santamaria, Latella Desireè, Alessia Bramanti, Giuseppe Silvestri, Placido Bramanti, Rocco Salvatore Calabrò
AIM OF THE STUDY: cognitive impairment occurs frequently in post-stroke patients. This study aimed to determine the effects of a virtual reality training (VRT) with BTs-Nirvana (BTsN) on the recovery of cognitive functions in stroke patients, using the Interactive-Semi-Immersive Program (I-SIP). MATERIALS AND METHODS: We enrolled 12 subjects (randomly divided into two groups: experimental group -EG; and control group -CG), who attended the Laboratory of Robotic and Cognitive Rehabilitation of IRCCS Neurolesi of Messina from January to June 2016...
November 17, 2017: International Journal of Neuroscience
https://www.readbyqxmd.com/read/29145761/non-fluent-speech-following-stroke-is-caused-by-impaired-efference-copy
#8
Lynda Feenaughty, Alexandra Basilakos, Leonardo Bonilha, Dirk-Bart den Ouden, Chris Rorden, Brielle Stark, Julius Fridriksson
Efference copy is a cognitive mechanism argued to be critical for initiating and monitoring speech: however, the extent to which breakdown of efference copy mechanisms impact speech production is unclear. This study examined the best mechanistic predictors of non-fluent speech among 88 stroke survivors. Objective speech fluency measures were subjected to a principal component analysis (PCA). The primary PCA factor was then entered into a multiple stepwise linear regression analysis as the dependent variable, with a set of independent mechanistic variables...
November 17, 2017: Cognitive Neuropsychology
https://www.readbyqxmd.com/read/29145207/determinants-prevalence-and-trajectory-of-long-term-post-stroke-cognitive-impairment-results-from-a-4-year-follow-up-of-the-auckland-stroke-regional-outcomes-study-iv-study
#9
Susan Mahon, Priya Parmar, Suzanne Barker-Collo, Rita Krishnamurthi, Kelly Jones, Alice Theadom, Valery Feigin
BACKGROUND: The long-term (>12 months) prevalence, predictors, and trajectory of post-stroke cognitive deficits are not well established, especially at a community level. This study investigated the longitudinal course and prevalence of cognitive impairment in an incidence cohort, identifying factors associated with declining cognition. METHODS: Two hundred fifty-seven participants (mean age = 67.93 ± 13.59) of first-ever stroke survivors, completed cognitive assessments within 2 weeks post stroke, and/or 1, 6, 12, and 48-month...
November 16, 2017: Neuroepidemiology
https://www.readbyqxmd.com/read/29121965/chronic-cerebral-hypoperfusion-induces-post-stroke-dementia-following-acute-ischemic-stroke-in-rats
#10
Dong Bin Back, Kyoung Ja Kwon, Dong-Hee Choi, Chan Young Shin, Jongmin Lee, Seol-Heui Han, Hahn Young Kim
BACKGROUND: Post-stroke dementia (PSD) is one of the major consequences after stroke. Chronic cerebral hypoperfusion (CCH) can induce vascular cognitive impairment and potentiate amyloid pathology. We investigated how CCH contributes to the development of PSD after stroke in the context of neuroinflammation and amyloid pathology. METHODS: We designed a unique animal model for PSD. We performed middle cerebral artery occlusion (MCAO) surgery in rats mimicking acute territorial infarct, which was followed by bilateral common carotid artery occlusion (BCCAo) surgery mimicking CCH...
November 9, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29119540/discrimination-of-stroke-related-mild-cognitive-impairment-and-vascular-dementia-using-eeg-signal-analysis
#11
Noor Kamal Al-Qazzaz, Sawal Hamid Bin Mohd Ali, Siti Anom Ahmad, Mohd Shabiul Islam, Javier Escudero
Stroke survivors are more prone to developing cognitive impairment and dementia. Dementia detection is a challenge for supporting personalized healthcare. This study analyzes the electroencephalogram (EEG) background activity of 5 vascular dementia (VaD) patients, 15 stroke-related patients with mild cognitive impairment (MCI), and 15 control healthy subjects during a working memory (WM) task. The objective of this study is twofold. First, it aims to enhance the discrimination of VaD, stroke-related MCI patients, and control subjects using fuzzy neighborhood preserving analysis with QR-decomposition (FNPAQR); second, it aims to extract and investigate the spectral features that characterize the post-stroke dementia patients compared to the control subjects...
November 8, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/29103037/circulating-progenitor-cells-correlate-with-memory-posterior-cortical-thickness-and-hippocampal-perfusion
#12
Daniel A Nation, Alick Tan, Shubir Dutt, Elissa C McIntosh, Belinda Yew, Jean K Ho, Anna E Blanken, Jung Yun Jang, Kathleen E Rodgers, Aimée Gaubert
BACKGROUND: Bone marrow-derived progenitor cells survey the vasculature and home to sites of tissue injury where they can promote repair and regeneration. It has been hypothesized that these cells may play a protective role neurodegenerative and vascular cognitive impairment. OBJECTIVE: To evaluate progenitor cell levels in older adults with and without mild cognitive impairment (MCI), and to relate circulating levels to memory, brain volume, white matter lesion volume, and cerebral perfusion...
November 1, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29073830/beneficial-falls-in-stroke-patients-evaluation-using-a-mixed-method-design
#13
Takayuki Watabe, Hisayoshi Suzuki, Yusuke Konuki, Keiichiro Aoki, Jun Nagashima, Rikitaro Sako
Purpose To use a mixed method design to evaluate how clinicians judge falls in stroke patients as a beneficial event, and to identify patient-specific characteristics associated with beneficial falls. Methods The definition of beneficial falls was based on interviews with six experienced clinicians in stroke rehabilitation. Interview data were analyzed using the grounded theory approach, with outcomes used to develop a checklist to judge falls as beneficial. We subsequently used the checklist to identify falls sustained by patients in our rehabilitation unit as beneficial events...
October 26, 2017: Topics in Stroke Rehabilitation
https://www.readbyqxmd.com/read/29073629/early-cognitive-impairment-after-intracerebral-hemorrhage-in-the-interact1-study
#14
Shoujiang You, Xia Wang, Richard I Lindley, Thompson Robinson, Craig S Anderson, Yongjun Cao, John Chalmers
BACKGROUND: Data on cognitive impairment after acute intracerebral hemorrhage (ICH) are limited. This study is aimed at determining the frequency and predictors of cognitive impairment among participants of the pilot phase, Intensive Blood Pressure (BP) Reduction in Acute Cerebral Hemorrhage Trial (INTERACT1). METHODS: INTERACT1 was an open randomized trial of early intensive (target systolic BP <140 mm Hg) compared with contemporaneous guideline-recommended BP lowering in 404 patients with elevated systolic BP (150-220 mm Hg) within 6 h of ICH onset...
October 26, 2017: Cerebrovascular Diseases
https://www.readbyqxmd.com/read/29060572/classification-enhancement-for-post-stroke-dementia-using-fuzzy-neighborhood-preserving-analysis-with-qr-decomposition
#15
Noor Kamal Al-Qazzaz, Sawal Ali, Siti Anom Ahmad, Javier Escudero
The aim of the present study was to discriminate the electroencephalogram (EEG) of 5 patients with vascular dementia (VaD), 15 patients with stroke-related mild cognitive impairment (MCI), and 15 control normal subjects during a working memory (WM) task. We used independent component analysis (ICA) and wavelet transform (WT) as a hybrid preprocessing approach for EEG artifact removal. Three different features were extracted from the cleaned EEG signals: spectral entropy (SpecEn), permutation entropy (PerEn) and Tsallis entropy (TsEn)...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29056825/central-poststroke-pain-its-profile-among-stroke-survivors-in-kano-nigeria
#16
Abdulbaki Halliru Bashir, Auwal Abdullahi, Muhammad Aliyu Abba, Naziru Bashir Mukhtar
BACKGROUND: Central poststroke pain (CPSP) caused by sensory dysfunction of central origin is a disabling condition that significantly affects the quality of life of stroke patients. AIM: The aim of this study is to determine the clinical profiles and pattern of CPSP among stroke patients in Kano, Nigeria. METHODS: The study was a cross-sectional design involving stroke survivors who were ≥18 years old and with no significant cognitive impairment approved by the Research Ethics Committee of Aminu Kano Teaching Hospital...
2017: Behavioural Neurology
https://www.readbyqxmd.com/read/29034421/hippocampal-deformations-and-entorhinal-cortex-atrophy-as-an-anatomical-signature-of-long-term-cognitive-impairment-from-the-mcao-rat-model-to-the-stroke-patient
#17
C Delattre, C Bournonville, F Auger, R Lopes, C Delmaire, H Henon, A M Mendyk, S Bombois, J C Devedjian, D Leys, C Cordonnier, R Bordet, M Bastide
Stroke patients have an elevated risk of developing long-term cognitive disorders or dementia. The latter is often associated with atrophy of the medial temporal lobe. However, it is not clear whether hippocampal and entorhinal cortex atrophy is the sole predictor of long-term post-stroke dementia. We hypothesized that hippocampal deformation (rather than atrophy) is a predictive marker of long-term post-stroke dementia on a rat model and tested this hypothesis in a prospective cohort of stroke patients.Male Wistar rats were subjected to transient middle cerebral artery occlusion and assessed 6 months later...
October 16, 2017: Translational Stroke Research
https://www.readbyqxmd.com/read/29022422/investigating-cognitive-ability-and-self-reported-driving-performance-of-post-stroke-adults-in-a-driving-simulator
#18
Alison Blane, Torbjörn Falkmer, Hoe C Lee, Tania Dukic Willstrand
Background Safe driving is a complex activity that requires calibration. This means the driver can accurately assess the level of task demand required for task completion and can accurately evaluate their driving capability. There is much debate on the calibration ability of post-stroke drivers. Objectives The aim of this study was to assess the cognition, self-rated performance, and estimation of task demand in a driving simulator with post-stroke drivers and controls. Methods A between-groups study design was employed, which included a post-stroke driver group and a group of similarly aged older control drivers...
October 12, 2017: Topics in Stroke Rehabilitation
https://www.readbyqxmd.com/read/29022086/lesions-responsible-for-delayed-oral-transit-time-in-post-stroke-dysphagia
#19
Hyun Im Moon, Seo Yeon Yoon, Tae Im Yi, Yoon Jeong Jeong, Tae Hwan Cho
INTRODUCTION: Some stroke patients show oral phase dysphagia, characterized by a markedly prolonged oral transit time that hinders oral feeding. The aim of this study was to clarify the clinical characteristics and lesions responsible for delayed swallowing. METHODS: We reviewed 90 patients with stroke. The oral processing time plus the postfaucial aggregation time required to swallow semisolid food was assessed. The patients were divided into two groups according to oral transit time, and we analyzed the differences in characteristics such as demographic factors, lesion factors, and cognitive function...
October 11, 2017: Dysphagia
https://www.readbyqxmd.com/read/29020466/improving-post-stroke-cognitive-and-behavioral-abnormalities-by-using-virtual-reality-a-case-report-on-a-novel-use-of-nirvana
#20
Rosaria De Luca, Michele Torrisi, Adriana Piccolo, Giovanni Bonfiglio, Provvidenza Tomasello, Antonino Naro, Rocco Salvatore Calabrò
Cognitive impairment, as well as mood and anxiety disorders, occur frequently in patients following stroke. Aim of this study was to evaluate the effects of a combined rehabilitative treatment using conventional relaxation and respiratory techniques, in a specific rehabilitative virtual environment (by using Bts-Nirvana). A 58-year-old woman, affected by hemorrhagic stroke, underwent two different rehabilitation trainings, including either standard relaxation techniques alone in a common clinical setting or the same psychological approach in a semi-immersive virtual environment with an augmented sensorial (audio-video) and motor feedback (sensory motor-interaction)...
October 11, 2017: Applied Neuropsychology. Adult
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