International Journal of Stroke最新文献

{"title":"Insulin resistance and white matter microstructural abnormalities in nondiabetic adult: A population-based study.","authors":"Mengyuan Zhou, Yijun Zhou, Jing Jing, Mengxing Wang, Aoming Jin, Xueli Cai, Xia Meng, Tao Liu, Yongjun Wang, Yilong Wang, Yuesong Pan","doi":"10.1177/17474930241266796","DOIUrl":"10.1177/17474930241266796","url":null,"abstract":"<p><strong>Background: </strong>Insulin resistance (IR) is of growing concern yet its association with white matter integrity remains controversial. We aimed to investigate the association between IR and white matter integrity in nondiabetic adults.</p><p><strong>Methods: </strong>This cross-sectional analysis was conducted based on the PolyvasculaR Evaluation for Cognitive Impairment and vaScular Events (PRECISE) study. A total of 1709 nondiabetic community-dwelling adults with available diffusion-weighted imaging based on brain magnetic resonance imaging and completed oral glucose tolerance test were included. IR was measured noninvasively by insulin sensitivity indices (ISI), including ISIcomposite and ISI_0,120, as well as homeostasis model assessment of insulin resistance (HOMA-IR). White matter microstructure abnormalities were identified by diffusion-weighted imaging along with tract-based spatial statistical analysis to compare diffusion metrics between groups. The multivariable linear regression models were applied to measure the association between white matter microstructure abnormalities and IR.</p><p><strong>Results: </strong>A total of 1709 nondiabetic individuals with a mean age of 60.8 ± 6.4 years and 54.1% female were included. We found that IR was associated with a significant increase in mean diffusivity, axial diffusivity, and radial diffusivity extensively in cerebral white matter in regions such as the anterior corona radiata, superior corona radiata, anterior limb of internal capsule, external capsule, and body of corpus callosum. The pattern of associations was more marked for ISIcomposite and ISI_0,120. However, the effect of IR on white matter integrity was attenuated after, in addition, adjustment for history of hypertension and cardiovascular disease and antihypertensive medication use.</p><p><strong>Conclusion: </strong>Our findings indicate a significant association between IR and white matter microstructural abnormalities in nondiabetic middle-aged community residents, while these associations were greatly influenced by the history of hypertension and cardiovascular disease, and antihypertensive medication use. Further investigation is needed to clarify the role of IR in white matter integrity, whereas prophylactic strategies of maintaining a low IR status may ameliorate disturbances in white matter integrity.</p><p><strong>Data accessibility statement: </strong>The data that support the findings of this study are available from the corresponding authors upon reasonable request.</p>","PeriodicalId":14442,"journal":{"name":"International Journal of Stroke","volume":" ","pages":"1162-1171"},"PeriodicalIF":6.3,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141446104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of intensive blood pressure lowering after multiple-attempt endovascular thrombectomy: A secondary analysis of the OPTIMAL-BP trial.","authors":"Jae Wook Jung, Kwang Hyun Kim, Jaeseob Yun, Young Dae Kim, JoonNyung Heo, Hyungwoo Lee, Jin Kyo Choi, Hyung Lee, In Hwan Lim, Soon-Ho Hong, Byung Moon Kim, Dong Joon Kim, Na Young Shin, Bang-Hoon Cho, Seong Hwan Ahn, Hyungjong Park, Sung-Il Sohn, Jeong-Ho Hong, Tae-Jin Song, Yoonkyung Chang, Gyu Sik Kim, Kwon-Duk Seo, Kijeong Lee, Jun Young Chang, Jung Hwa Seo, Sukyoon Lee, Jang-Hyun Baek, Han-Jin Cho, Dong Hoon Shin, Jinkwon Kim, Joonsang Yoo, Minyoul Baik, Kyung-Yul Lee, Yo Han Jung, Yang-Ha Hwang, Chi Kyung Kim, Jae Guk Kim, Chan Joo Lee, Sungha Park, Soyoung Jeon, Hye Sun Lee, Sun U Kwon, Oh Young Bang, Ji Hoe Heo, Hyo Suk Nam","doi":"10.1177/17474930241265652","DOIUrl":"10.1177/17474930241265652","url":null,"abstract":"<p><strong>Background: </strong>Multiple attempts of thrombectomy have been linked to a higher risk of intracerebral hemorrhage and worsened functional outcomes, potentially influenced by blood pressure (BP) management strategies. Nonetheless, the impact of intensive BP management following successful recanalization through multiple attempts remains uncertain.</p><p><strong>Aims: </strong>This study aimed to investigate whether conventional and intensive BP managements differentially affect outcomes according to multiple-attempt recanalization (MAR) and first-attempt recanalization (FAR) groups.</p><p><strong>Methods: </strong>In this secondary analysis of the OPTIMAL-BP trial, which was a comparison of intensive (systolic BP target: <140 mm Hg) and conventional (systolic BP target = 140-180 mm Hg) BP managements during the 24 h after successful recanalization, we included intention-to-treat population of the trial. Patients were divided into the MAR and the FAR groups. We examined a potential interaction between the number of thrombectomy attempts (MAR and FAR groups) and the effect of BP managements on clinical and safety outcomes. The primary outcome was functional independence at 3 months. Safety outcomes were symptomatic intracerebral hemorrhage within 36 h and mortality within 3 months.</p><p><strong>Results: </strong>Of the 305 patients (median = 75 years), 102 (33.4%) were in the MAR group and 203 (66.6%) were in the FAR group. The intensive BP management was significantly associated with a lower rate of functional independence in the MAR group (intensive, 32.7% vs conventional, 54.9%, adjusted odds ratio (OR) = 0.33, 95% confidence interval (CI) = 0.12-0.90, <i>p</i> = 0.03). In the FAR group, the proportion of patients with functional independence was not significantly different between the BP managements (intensive, 42.5% vs conventional, 54.2%, adjusted OR = 0.73, 95% CI = 0.38-1.40). Incidences of symptomatic intracerebral hemorrhage and mortality rates were not significantly different according to the BP managements in both MAR and FAR groups.</p><p><strong>Conclusions: </strong>Among stroke patients who received multiple attempts of thrombectomy, intensive BP management for 24 h resulted in a reduced chance of functional independence at 3 months and did not reduce symptomatic intracerebral hemorrhage following successful reperfusion.</p>","PeriodicalId":14442,"journal":{"name":"International Journal of Stroke","volume":" ","pages":"1134-1146"},"PeriodicalIF":6.3,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141440467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Meteorological factors and risk of ischemic stroke, intracranial hemorrhage, and subarachnoid hemorrhage: A time-stratified case-crossover study.","authors":"Sheng-Jen Chen, Meng Lee, Bing-Chen Wu, Chih-Hsin Muo, Fung-Chang Sung, Pei-Chun Chen","doi":"10.1177/17474930241270483","DOIUrl":"10.1177/17474930241270483","url":null,"abstract":"<p><strong>Background: </strong>Stroke risks associated with rapid climate change remain controversial due to a paucity of evidence.</p><p><strong>Aims: </strong>To examine the risk of subarachnoid hemorrhage (SAH), intracranial hemorrhage (ICH), and ischemic stroke (IS) associated with meteorological parameters.</p><p><strong>Methods: </strong>In this time-stratified case-crossover study, adult patients hospitalized for their first stroke between 2011 and 2020 from the insurance claims data in Taiwan were identified. The hospitalization day was designated as the case period, and three or four control periods were matched by the same day of the week and month of each case period. Daily mean and 24-h variations in ambient temperature, relative humidity, air pressure, and apparent temperature were measured. Conditional logistic regression models were applied to assess the risk of stroke associated with exposure to weather variables, using the third quintile as a reference, controlling for air pollutant levels.</p><p><strong>Results: </strong>There were 7161 patients with SAH, 40,426 patients with ICH, and 107,550 patients with IS. There was an inverse linear relationship between mean daily temperature and apparent temperature with ICH. Elevated mean daily atmospheric pressure was associated with an increased risk of ICH. A greater decrease in apparent temperature over a 24-h period was associated with increased risk of ICH but decreased risk of IS (odds ratio (95% confidence interval) for the first vs. third quintile of changes in apparent temperature, 1.141 (1.053-1.237) and 0.946 (0.899-0.996), respectively).</p><p><strong>Conclusions: </strong>There were considerable differences in short-term associations between meteorological parameters and three main pathological types of strokes.</p><p><strong>Data access statement: </strong>The authors have no permission to share the data.</p>","PeriodicalId":14442,"journal":{"name":"International Journal of Stroke","volume":" ","pages":"1172-1181"},"PeriodicalIF":6.3,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141792410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diagnosis and management of adult Moyamoya angiopathy: An overview of guideline recommendations and identification of future research directions.","authors":"Nicola Rifino, Dominique Hervè, Francesco Acerbi, Satoshi Kuroda, Giuseppe Lanzino, Peter Vajkoczy, Anna Bersano","doi":"10.1177/17474930241297031","DOIUrl":"10.1177/17474930241297031","url":null,"abstract":"<p><p>Despite the progress made in understanding the management and outcomes of Moyamoya angiopathy (MMA), several aspects of the disease remain largely unknown. In particular, evidence on the disease history and management of MMA is lacking, mainly due to methodological and selection biases in the available studies and the lack of large, randomized prospective studies. Therefore, the care of MMA patients remains limited to a few expert centers worldwide, and management is often based on local expertise and available resources. Over the years, recommendations or expert opinions have been written to provide guidance to physicians in the treatment of this condition with the goal of reducing the risk of stroke recurrence and long-term disability. However, there is no complete agreement between the available guidelines and recommendations due to differences in the articles addressed, methodologies, expertise, and validated approaches to literature review. This lack of consensus on the management of MMA may confuse clinicians and highlight some important issues and points. The aim of this comprehensive review article is to critically examine three recent guidelines and recommendations on MMA, discussing their differences and similarities and highlighting gaps in MMA care that need to be covered.</p>","PeriodicalId":14442,"journal":{"name":"International Journal of Stroke","volume":" ","pages":"17474930241297031"},"PeriodicalIF":6.3,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142465590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"PCSK9 Inhibitor with Statin Therapy for Intracranial Artery Stenosis ( PISTIAS): Rationale and design of a multicenter randomized controlled trial.","authors":"Xinzhi Hu, Zongmuyu Zhang, Caiyan Liu, Mingli Li, Yiyang Liu, Anqi Cheng, Qiuyu Yu, Haoyao Guo, Yinxi Zou, Li Zhou, Hebo Wang, Bo Song, Yong You, Jian Xia, Jingfen Zhang, Zhibing Ai, Qinjian Sun, Ju Han, Jing Liu, Baoquan Lu, Qiwen Deng, Guanzeng Li, Peng-Fei Wang, Xiangqing Li, Yi An, Bo Wu, Zhongrui Yan, Yining Wang, Wei-Hai Xu","doi":"10.1177/17474930241270447","DOIUrl":"10.1177/17474930241270447","url":null,"abstract":"<p><strong>Rationale: </strong>Proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitors enable an additional 54-75% reduction in low-density lipoprotein cholesterol (LDL-C) in statin-treated patients, demonstrating plaque regression in coronary artery disease. However, the impact of achieving an extremely low level of LDL-C with PCSK9 inhibitors (e.g. Evolocumab) on symptomatic intracranial atherosclerosis remains unexplored.</p><p><strong>Aim and hypothesis: </strong>To determine whether combining Evolocumab and statins achieves a more significant symptomatic intracranial plaque regression than statin therapy alone.</p><p><strong>Sample size estimates: </strong>With a sample size of 1000 subjects, a two-sided α of 0.05, and 20% lost to follow-up, the study will have 83.3% power to detect the difference in intracranial plaque burden.</p><p><strong>Methods and design: </strong>This is an investigator-initiated multicenter, randomized, open-label, outcome assessor-blinded trial, evaluating the impact of combining Evolocumab and statins on intracranial plaque burden assessed by high-resolution magnetic resonance imaging at baseline in patients undergoing a clinically indicated acute stroke or transient ischemic attack due to intracranial artery stenosis, and after 24 weeks of treatment. Subjects (n = 1000) were randomized 1:1 into two groups to receive either Evolocumab 140 mg every 2 weeks with statin therapy or statin therapy alone.</p><p><strong>Study outcomes: </strong>The primary endpoint is the change in intracranial plaque burden assessed by high-resolution magnetic resonance imaging, performed at baseline and at the end of the 24-week treatment period.</p><p><strong>Discussion: </strong>This trial will explore whether more significant intracranial plaque regression is achievable with the treatment of combining Evolocumab and statins, providing information about efficacy and safety data.</p><p><strong>Trial registration number: </strong>ChiCTR2300068868; https://www.chictr.org.cn/.</p>","PeriodicalId":14442,"journal":{"name":"International Journal of Stroke","volume":" ","pages":"1071-1076"},"PeriodicalIF":6.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141792411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Post-stroke emotionalism: Diagnosis, pathophysiology, and treatment.","authors":"Niall M Broomfield, Joshua Blake, Fergus Gracey, Tom Steverson","doi":"10.1177/17474930241242952","DOIUrl":"10.1177/17474930241242952","url":null,"abstract":"<p><strong>Background: </strong>Post-stroke emotionalism affects one in five stroke sufferers 6 months after their stroke, but despite its frequency remains a poorly understood stroke symptom. The literature is limited, especially compared to other frequently observed neurological conditions such as aphasia and visual neglect.</p><p><strong>Aim and methods: </strong>This narrative review presents a summary of the post-stroke emotionalism literature, to inform clinical practice and future research. We cover discussion of definitions, prevalence, neurobiology, predisposing and precipitating factors, and treatment.</p><p><strong>Results: </strong>Increasing evidence suggests that damage to specific areas functionally linked to emotion expression or regulation processes, disruption to structural pathways and those related to serotonin production and modulation individually or in concert give rise to emotionalism-type presentations. A range of emotionalism measurement tools have been used in research contexts making between study comparisons difficult. Testing for Emotionalism after Recent Stroke-Questionnaire (TEARS-Q) has recently been developed to allow standardized assessment. Treatment options are limited, and there have been few adequately powered treatment trials. Antidepressants may reduce severity, but more trial data are required. There have been no randomized-controlled trials of non-pharmacological interventions.</p><p><strong>Conclusions: </strong>More research is needed to improve recognition and treatment of this common and disabling symptom. We conclude with research priorities and recommendations for the field.</p>","PeriodicalId":14442,"journal":{"name":"International Journal of Stroke","volume":" ","pages":"857-866"},"PeriodicalIF":6.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11408949/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140174662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Temporal trends of sex differences in acute reperfusion therapy and early outcomes of acute ischemic stroke in South Korea: 10-year analysis of the nationwide stroke registry.","authors":"Darda Chung, Ji Sung Lee, Mi-Sun Oh, Jong-Moo Park, Jong-Won Chung, Oh Young Bang, Gyeong-Moon Kim, Woo-Keun Seo","doi":"10.1177/17474930241261877","DOIUrl":"10.1177/17474930241261877","url":null,"abstract":"<p><strong>Background: </strong>Sex differences in stroke outcomes are notable, with women experiencing higher incidence rates, greater disability-adjusted life years, and poorer recovery compared to men, even after adjusting for age and comorbidities. Despite the disproportionate burden in women, studies have reported that women are less likely to receive appropriate stroke treatment than men.</p><p><strong>Aim: </strong>This study investigated temporal trends of sex differences in acute reperfusion therapy and early outcomes in patients with acute ischemic stroke over 10 years in South Korea.</p><p><strong>Methods: </strong>A retrospective analysis of Korean Stroke Registry included patients with acute ischemic stroke from 2012 to 2021. The study outcomes were the temporal trends of acute reperfusion therapy and early outcomes over 10 years in men and women, respectively. In addition, this study analyzed the temporal trends of sex differences in these parameters during the same period. Early outcomes include the proportions of favorable functional outcomes at discharge, discharge patterns, and in-hospital mortality.</p><p><strong>Results: </strong>A total of 93,692 patients (68.4 years, 40.1% women) with acute ischemic stroke were finally enrolled. Women had a higher age at stroke onset, a higher prevalence of atrial fibrillation, and more severe strokes than men. Women had lower proportion of favorable functional outcomes at discharge and higher proportion of in-hospital mortality compared to men each year. The proportion of patients who received intravenous thrombolysis was lower or similar in women compared to men in most years, and the proportion of patients who received endovascular thrombectomy did not significantly differ between sexes annually. Sex differences in acute reperfusion therapy remained unchanged over 10 years.</p><p><strong>Conclusion: </strong>Women have received acute reperfusion therapy at similar or lower rates than men and experienced poorer outcomes, despite having more stroke risk factors and often more severe strokes.</p>","PeriodicalId":14442,"journal":{"name":"International Journal of Stroke","volume":" ","pages":"1028-1037"},"PeriodicalIF":6.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141247470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Relationship between carotid web morphology on CT angiography and stroke: A pooled multicenter analysis.","authors":"Fouzi Bala, Ibrahim Alhabli, Nishita Singh, Faysal Benali, Shelagh Coutts, Mayank Goyal, Mohammed Almekhlafi, Michael D Hill, Bijoy K Menon","doi":"10.1177/17474930241264141","DOIUrl":"10.1177/17474930241264141","url":null,"abstract":"<p><strong>Background: </strong>The Carotid web (CaW) is a cause of stroke, particularly in younger individuals. However, the frequency and the radiological features of the web's morphology associated with stroke risk are uncertain. We determined the CaW radiological features on computed tomography (CT) angiography associated with ipsilateral stroke.</p><p><strong>Materials and methods: </strong>Data from six studies of patients with acute ischemic stroke were pooled. Identification and measurement of CaWs were performed by experienced readers using baseline neck CT angiography. We assessed six 2D CaW radiological features on sagittal oblique images, namely, main axis length, thickness, height, base width, distance to wall, and angle between the web main axis and carotid wall, and CaW volume on 3D images. CaWs were divided into symptomatic if acute ischemic stroke was in the ipsilateral internal carotid artery territory and its etiology was undetermined and asymptomatic if one condition was unmet. Univariable and multivariable analyses were conducted to assess the association between each radiological CaW feature and symptomatic CaW.</p><p><strong>Results: </strong>Of the 3442 patients in the pooled data with assessable CTAs, 60 (1.7%) had CaW. In patients with CaW, median age was 59 (interquartile range [IQR]: 50-68) years, 60% were women, and 3 patients had bilateral CaWs. There were 39 (62%) symptomatic and 24 (38%) asymptomatic CaWs. Patients with symptomatic CaW were younger (55 (IQR: 49-61) years versus 69 (IQR: 52-75) years), had lower rates of hypertension (9 (25.0%) versus 12 (57.1%)) and more intracranial large vessel occlusions compared to patients with asymptomatic CaWs. After adjusting for age, hypertension, and occlusion location, CaW length (adjusted odds ratio (aOR) 1.84 (95% confidence interval [CI]: 1.03-3.28)), thickness (aOR: 2.31 (95% CI 1.08-4.97)), volume (aOR: 1.07 per 1 mm³ increment (95% CI: 1.01-1.12)), and angle relative to the carotid wall (aOR: 0.95 (95% CI: 0.91-0.99)) were associated with symptomatic CaW.</p><p><strong>Conclusion: </strong>Radiological assessment of CaW morphology may determine its potential causal role in ischemic stroke etiology. Symptomatic CaWs tend to be longer, larger, and oriented at more acute angles relative to the carotid wall as compared to asymptomatic CaWs.</p>","PeriodicalId":14442,"journal":{"name":"International Journal of Stroke","volume":" ","pages":"1046-1052"},"PeriodicalIF":6.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141320849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Predicting post-stroke cognitive impairment using electronic health record data.","authors":"Jeffrey M Ashburner, Yuchiao Chang, Bianca Porneala, Sanjula D Singh, Nirupama Yechoor, Jonathan M Rosand, Daniel E Singer, Christopher D Anderson, Steven J Atlas","doi":"10.1177/17474930241246156","DOIUrl":"10.1177/17474930241246156","url":null,"abstract":"<p><strong>Background: </strong>Secondary prevention interventions to reduce post-stroke cognitive impairment (PSCI) can be aided by the early identification of high-risk individuals who would benefit from risk factor modification.</p><p><strong>Aims: </strong>To develop and evaluate a predictive model to identify patients at increased risk of PSCI over 5 years using data easily accessible from electronic health records.</p><p><strong>Methods: </strong>Cohort study that included primary care patients from two academic medical centers. Patients were aged 45 years or older, without prior stroke or prevalent cognitive impairment, with primary care visits and an incident ischemic stroke between 2003 and 2016 (development/internal validation cohort) or 2010 and 2022 (external validation cohort). Predictors of PSCI were ascertained from the electronic health record. The outcome was incident dementia/cognitive impairment within 5 years and beginning 3 months following stroke, ascertained using International Classification of Diseases, Ninth/Tenth Revision (ICD-9/10) codes. For model variable selection, we considered potential predictors of PSCI and constructed 400 bootstrap samples with two-thirds of the model derivation sample. We ran 10-fold cross-validated Cox proportional hazards models using a least absolute shrinkage and selection operator (LASSO) penalty. Variables selected in >25% of samples were included.</p><p><strong>Results: </strong>The analysis included 332 incident diagnoses of PSCI in the development cohort (n = 3741), and 161 and 128 incident diagnoses in the internal (n = 1925) and external (n = 2237) validation cohorts, respectively. The C-statistic for predicting PSCI was 0.731 (95% confidence interval (CI): 0.694-0.768) in the internal validation cohort, and 0.724 (95% CI: 0.681-0.766) in the external validation cohort. A risk score based on the beta coefficients of predictors from the development cohort stratified patients into low (0-7 points), intermediate (8-11 points), and high (12-23 points) risk groups. The hazard ratios (HRs) for incident PSCI were significantly different by risk categories in internal (high, HR: 6.2, 95% CI: 4.1-9.3; Intermediate, HR: 2.7, 95% CI: 1.8-4.1) and external (high, HR: 6.1, 95% CI: 3.9-9.6; Intermediate, HR: 2.8, 95% CI: 1.9-4.3) validation cohorts.</p><p><strong>Conclusion: </strong>Five-year risk of PSCI can be accurately predicted using routinely collected data. Model output can be used to risk stratify and identify individuals at increased risk for PSCI for preventive efforts.</p><p><strong>Data access statement: </strong>Mass General Brigham data contain protected health information and cannot be shared publicly. The data processing scripts used to perform analyses will be made available to interested researchers upon reasonable request to the corresponding author.</p>","PeriodicalId":14442,"journal":{"name":"International Journal of Stroke","volume":" ","pages":"898-906"},"PeriodicalIF":6.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11609869/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140305640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Post-stroke cognitive impairment remains highly prevalent and disabling despite state-of-the-art stroke treatment.","authors":"Laura Gallucci, Christoph Sperber, Adrian G Guggisberg, Christoph P Kaller, Mirjam R Heldner, Andreas U Monsch, Arsany Hakim, Norbert Silimon, Urs Fischer, Marcel Arnold, Roza M Umarova","doi":"10.1177/17474930241238637","DOIUrl":"10.1177/17474930241238637","url":null,"abstract":"<p><strong>Background: </strong>State-of-the-art stroke treatment significantly reduces lesion size and stroke severity, but it remains unclear whether these therapeutic advances have diminished the burden of post-stroke cognitive impairment (PSCI).</p><p><strong>Aims: </strong>In a cohort of patients receiving modern state-of-the-art stroke care including endovascular therapy, we assessed the frequency of PSCI and the pattern of domain-specific cognitive deficits, identified risk factors for PSCI, and determined the impact of acute PSCI on stroke outcome.</p><p><strong>Methods: </strong>In this prospective monocentric cohort study, we examined patients with first-ever anterior circulation ischemic stroke without pre-stroke cognitive decline, using a comprehensive neuropsychological assessment ⩽10 days after symptom onset. Normative data were stratified by demographic variables. We defined PSCI as at least moderate (<1.5 standard deviation) deficits in ⩾2 cognitive domains. Multivariable regression analysis was applied to define risk factors for PSCI.</p><p><strong>Results: </strong>We analyzed 329 non-aphasic patients admitted from December 2020 to July 2023 (67.2 ± 14.4 years old, 41.3% female, 13.1 ± 2.7 years of education). Although most patients had mild stroke (median National Institutes of Health Stroke Scale (NIHSS) 24 h = 1.00 (0.00; 3.00); 87.5% with NIHSS ⩽ 5), 69.3% of them presented with PSCI 2.7 ± 2.0 days post-stroke. The most severely and often affected cognitive domains were verbal learning, episodic memory, executive functions, selective attention, and constructive abilities (39.1%-51.2% of patients), whereas spatial neglect was less frequent (18.5%). The risk of PSCI was reduced with more years of education (odds ratio (OR) = 0.47, 95% confidence interval (CI) = 0.23-0.99) and right hemisphere lesions (OR = 0.47, 95% CI = 0.26-0.84), and increased with stroke severity (NIHSS 24 h, OR = 4.19, 95% CI = 2.72-6.45), presence of hyperlipidemia (OR = 1.93, 95% CI = 1.01-3.68), but was not influenced by age. After adjusting for stroke severity and depressive symptoms, acute PSCI was associated with poor functional outcome (modified Rankin Scale > 2, F = 13.695, p < 0.001) and worse global cognition (Montreal Cognitive Assessment (MoCA) score, F = 20.069, p < 0.001) at 3 months post-stroke.</p><p><strong>Conclusion: </strong>Despite modern stroke therapy and many strokes having mild severity, PSCI in the acute stroke phase remains frequent and associated with worse outcome. The most prevalent were learning and memory deficits. Cognitive reserve operationalized as years of education independently protects post-stroke cognition.</p>","PeriodicalId":14442,"journal":{"name":"International Journal of Stroke","volume":" ","pages":"888-897"},"PeriodicalIF":6.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139996210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}