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Impact of allocentric and egocentric perspectives on far transfer effects following cognitive neurorehabilitation in stroke patients: A randomized control trial 异位中心和自我中心视角对脑卒中患者认知神经康复后远端转移效应的影响:一项随机对照试验。
IF 1.8 4区 医学 Q3 NEUROSCIENCES Pub Date : 2026-04-01 Epub Date: 2026-02-10 DOI: 10.1016/j.jstrokecerebrovasdis.2026.108583
Jovita Janavičiūtė-Pužauskė , Raimonda Petrolienė , Loreta Zajančkauskaitė-Staskevičienė , Andrius Paulauskas , Liuda Šinkariova

Objective

This study aimed to evaluate the role of egocentric and allocentric perspectives in facilitating far transfer (improvement of emotional state and psychomotor functions) following cognitive training in stroke patients.

Methods

In a three-arm, non-blind, randomized clinical trial, 128 patients with acute stroke were randomly allocated to one of the following groups: 1) control, 2) allocentric perspective, or 3) egocentric perspective groups. Each group received a 2-week intervention, with the experimental groups completing an additional 10 sessions. Cognitive function was measured by the Addenbrooke Cognitive Evaluation-III, depression by the Patient Health Questionnaire-9, anxiety by the Generalized Anxiety Disorder-7 scale, and psychomotor function by the Finger Tapping Test.

Results

Cognitive training tasks based on allocentric and egocentric perspectives, when combined with conventional rehabilitation, did not yield a statistically significant far transfer effect compared to conventional rehabilitation alone. No significant differences between-groups were observed for changes in anxiety (F(2, 111) = .056, p = .945, η2 = .058), depression (F(2, 109) = 0.831, p = .160, η2 = .074), or dominant (F(2, 111) = 0.059, p = .943, η2 = .001) and non-dominant (F(2, 108) = 1.375, p = .257, η2 = .290) psychomotor functions.

Conclusion

The incorporation of an allocentric and egocentric perspective based cognitive training tasks in conventional rehabilitation do not provide significantly better improvements in emotional state and psychomotor functions.
The ISRCTN clinical trial registry (https://doi.org/10.1186/ISRCTN14922230).
目的:探讨自我中心和异位中心视角在脑卒中患者认知训练后远端迁移(情绪状态和精神运动功能的改善)中的作用。方法:在一项三组非盲随机临床试验中,128例急性脑卒中患者随机分为以下三组:1)对照组,2)异体中心视角组,3)自我中心视角组。每组接受为期两周的干预,实验组完成额外的10个疗程。认知功能采用阿登布鲁克认知评估- iii,抑郁采用患者健康问卷-9,焦虑采用广泛性焦虑障碍-7,精神运动功能采用手指敲击测试。结果:基于异体中心和自我中心视角的认知训练任务与常规康复相结合时,与常规康复相比,没有统计学上显著的远端转移效应。两组间焦虑变化无显著差异(F(2,111) = )。056, p = 。945年,η2 = 。058),抑郁(F(2,109) = 0.831,p = 。160年,η2 = 。074),或显性(F(2,111) = 0.059,p = 。943年,η2 = 。001)和非显性(F(2,108) = 1.375,p = 。257年,η2 = 。290)精神运动功能。结论:在常规康复训练中,以异中心和自我中心为基础的认知训练任务并不能显著改善患者的情绪状态和精神运动功能。ISRCTN临床试验注册(https://doi.org/10.1186/ISRCTN14922230)。
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引用次数: 0
Methodological concerns undermining causal interpretation in early gastrostomy timing after intracerebral hemorrhage 脑出血后早期胃造口时机的方法学问题削弱了因果解释。
IF 1.8 4区 医学 Q3 NEUROSCIENCES Pub Date : 2026-03-01 Epub Date: 2026-01-06 DOI: 10.1016/j.jstrokecerebrovasdis.2026.108551
Ahmad Shafi Antar
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引用次数: 0
Temporal trends in the use of direct oral anticoagulants prior to stroke admission 卒中入院前直接口服抗凝剂使用的时间趋势。
IF 1.8 4区 医学 Q3 NEUROSCIENCES Pub Date : 2026-03-01 Epub Date: 2026-01-24 DOI: 10.1016/j.jstrokecerebrovasdis.2026.108574
Lily W. Zhou MD, MS, FRCPC , Dibbya Pravas Dasgupta MS , Ashkan Shoamanesh MD, FRCPC , Bijoy K. Menon MD, DM, MSc, FRCPC , Jason Sutherland PhD

BACKGROUND and AIMS

This population-based cohort study measures temporal trends in direct oral anticoagulants (DOAC) use before hospital admission among intracranial haemorrhage (ICH) and acute ischemic stroke (AIS) hospitalizations.

METHODS

Consecutive patients with ICH and AIS in British Columbia (B.C.), Canada between 2015 and 2023 were identified using ICD-10 diagnosis codes from Canada’s Discharge Abstract Database. Linkages were made with outpatient prescriptions. We used Cox regression with cause-specific hazard models to explore differences in hospitalization outcomes by DOAC use adjusting for patient demographics and stroke treatment.

RESULTS

562/5434 (10.3%) of ICH and 3002/35,666 (8.4%) AIS discharges had DOAC exposure prior to hospital admission. Apixaban was the most common DOAC (49.7%) followed by rivaroxaban (41.4%), dabigatran (8.2%) and edoxaban (0.7%). The proportion of patients on DOACs increased every year among ICH patients by 9% (IRR 1.09, 95% CI 1.05-1.13; from 6.3% to 12.0%) and AIS by 10% (IRR 1.10, 95% CI 1.08-1.12; from 5.1% to 10.1%). After adjustment for patient demographics, health authority location in BC, patient comorbidities, ambulance use and reperfusion treatment, ICH patients admitted on DOACs were more likely to die in hospital (HR 1.27, 95% CI 1.06-1.51) and be transferred to long term care (HR 1.36, 95% 1.04-1.76).

CONCLUSIONS

The proportion of patients on DOACs at admission doubled between 2015 and 2023. Patients on DOACs were older, had more comorbidities. Patients with ICH on DOAC prior to admission were more likely to have died during their hospitalization or be discharged to long-term care.
背景和目的:这项基于人群的队列研究测量了颅内出血(ICH)和急性缺血性卒中(AIS)住院患者入院前直接口服抗凝剂(DOAC)使用的时间趋势。方法:使用来自加拿大出院摘要数据库的ICD-10诊断代码,对2015年至2023年加拿大不列颠哥伦比亚省(bc)连续的脑出血和AIS患者进行识别。与门诊处方进行了联系。我们使用Cox回归和原因特异性风险模型来探讨DOAC使用对患者人口统计学和卒中治疗进行调整后住院结果的差异。结果:562/5434例(10.3%)脑出血患者和3002/35,666例(8.4%)AIS患者入院前有DOAC暴露。阿哌沙班是最常见的DOAC(49.7%),其次是利伐沙班(41.4%)、达比加群(8.2%)和依多沙班(0.7%)。在ICH患者中,DOACs患者比例每年增加9% (IRR 1.09, 95% CI 1.05-1.13;从6.3%增加到12.0%),AIS患者比例每年增加10% (IRR 1.10, 95% CI 1.08-1.12;从5.1%增加到10.1%)。在对患者人口统计学、BC省卫生机构所在地、患者合共病、救护车使用和再灌注治疗进行调整后,接受doac治疗的脑出血患者更有可能在医院死亡(HR 1.27, 95% CI 1.06-1.51),并转入长期护理(HR 1.36, 95% CI 1.04-1.76)。结论:2015年至2023年间,入院时接受DOACs治疗的患者比例翻了一番。DOACs的患者年龄较大,有更多的合并症。入院前接受DOAC治疗的脑出血患者更有可能在住院期间死亡或出院接受长期护理。
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引用次数: 0
Recent advances and mechanistic insights of non-invasive brain stimulation in post-stroke dysphagia rehabilitation 非侵入性脑刺激在脑卒中后吞咽困难康复中的最新进展和机制见解
IF 1.8 4区 医学 Q3 NEUROSCIENCES Pub Date : 2026-03-01 Epub Date: 2026-01-26 DOI: 10.1016/j.jstrokecerebrovasdis.2026.108576
En-li Jiang , Qi-zu Jin , Qing-yun Zhang , Ri-bo Peng , Hai-bo Ai

Background

Post-stroke dysphagia (PSD) affects nearly half of stroke survivors and is associated with aspiration pneumonia, malnutrition, and increased mortality. Conventional swallowing rehabilitation often yields limited functional recovery. In recent years, non-invasive brain stimulation (NIBS), particularly repetitive transcranial magnetic stimulation (rTMS) and transcranial direct current stimulation (tDCS), has emerged as a promising adjunctive therapy for promoting neuroplasticity and improving swallowing function in patients with PSD.

Methods

This structured narrative review summarizes current clinical evidence on the application of rTMS and tDCS in PSD rehabilitation. A literature search was conducted in PubMed, Web of Science, CNKI, and the Cochrane Library from database inception to August 31, 2025. Randomized controlled trials evaluating the effects of rTMS or tDCS on swallowing-related outcomes in patients with PSD were included and narratively synthesized according to stimulation modality, target site, and clinical efficacy.

Results

Across the included studies, both rTMS and tDCS significantly improved swallowing function compared with sham stimulation or conventional therapy alone, with good safety and tolerability. Therapeutic benefits were observed using various stimulation protocols, including high-frequency rTMS applied to the affected hemisphere, low-frequency rTMS applied to the unaffected hemisphere, and anodal tDCS delivered to the affected, unaffected, or bilateral hemispheres. However, stimulation parameters and target selection varied widely across studies, and no direct comparisons between rTMS and tDCS or combined-stimulation trials were identified.

Conclusions

Current evidence supports rTMS and tDCS as effective, safe, and feasible adjuncts to conventional rehabilitation for post-stroke dysphagia. Nevertheless, heterogeneity in study design and outcome measures limits protocol standardization. Future large-scale, multimodal studies incorporating neuroimaging and guided by the bimodal balance–recovery model are warranted to optimize stimulation strategies and further elucidate the mechanisms underlying cortical reorganization in PSD recovery.
卒中后吞咽困难(PSD)影响了近一半的卒中幸存者,并与吸入性肺炎、营养不良和死亡率增加有关。传统的吞咽康复往往只能产生有限的功能恢复。近年来,非侵入性脑刺激(NIBS),特别是重复性经颅磁刺激(rTMS)和经颅直流电刺激(tDCS)已成为一种很有前景的辅助治疗,可促进PSD患者的神经可塑性和改善吞咽功能。方法对rTMS和tDCS在ptsd康复中的临床应用进行综述。检索PubMed、Web of Science、CNKI和Cochrane Library从数据库建立到2025年8月31日的文献。纳入评估rTMS或tDCS对PSD患者吞咽相关结局影响的随机对照试验,并根据刺激方式、靶部位和临床疗效进行叙述性综合。结果在纳入的研究中,与假刺激或常规治疗相比,rTMS和tDCS均能显著改善吞咽功能,且具有良好的安全性和耐受性。通过各种刺激方案观察到治疗效果,包括将高频rTMS应用于受影响的半球,将低频rTMS应用于未受影响的半球,将阳极tDCS应用于受影响的半球,未受影响的半球或双侧半球。然而,刺激参数和目标选择在不同的研究中差异很大,没有发现rTMS和tDCS或联合刺激试验之间的直接比较。结论目前的证据支持rTMS和tDCS是脑卒中后吞咽困难常规康复的有效、安全、可行的辅助手段。然而,研究设计和结果测量的异质性限制了方案的标准化。未来,在双峰平衡恢复模型的指导下,结合神经影像学的大规模、多模态研究有必要优化刺激策略,并进一步阐明PSD恢复过程中皮层重组的机制。
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引用次数: 0
Associations between methylglyoxal and cerebral small vessel disease and cognitive function – The Maastricht Study 甲基乙二醛与脑血管疾病和认知功能之间的关系——马斯特里赫特研究
IF 1.8 4区 医学 Q3 NEUROSCIENCES Pub Date : 2026-03-01 Epub Date: 2026-01-29 DOI: 10.1016/j.jstrokecerebrovasdis.2026.108578
Eline Berends , Simone J.P.M. Eussen , Walter H. Backes , Pieter C. Dagnelie , Jacobus F.A. Jansen , Bastiaan E. de Galan , Marleen M.J. van Greevenbroek , Sebastian Köhler , Miranda T. Schram , Anke Wesselius , Robert J. van Oostenbrugge , Sébastien Foulquier , Casper G. Schalkwijk

Background

Cerebral small vessel disease (CSVD) and dementia are increasingly prevalent in the aging population. Diabetes is a major risk factor for CSVD and cognitive impairment, but the underlying mechanisms remain unclear. Methylglyoxal (MGO), a glycolysis by-product and precursor of advanced glycation endproducts (AGEs), is elevated in diabetes and linked to microvascular complications. The aim of this study is to investigate the association between levels of MGO in plasma with MRI-derived markers of CSVD and cognitive impairment in a population-based setting.

Methods

Cross-sectional data from The Maastricht Study, a population-based cohort with an oversampling of type 2 diabetes (age 59.7 ± 8.2 years, 49.9 % male, 26 % type 2 diabetes), were analysed. Plasma MGO concentrations were measured using UPLC-MS/MS after overnight fasting. Participants underwent MRI (n = 1789) and cognitive testing (n = 2515). CSVD markers included white matter hyperintensity volume, lacunar infarcts, and cerebral microbleeds. Logistic and linear regressions, adjusted for confounders, assessed the associations between plasma MGO levels, CSVD markers, and cognitive function.

Results

No linear associations were found in any of the outcomes. When dividing the population into tertiles (lowest, intermediate, highest) based on plasma MGO concentration, intermediate compared to lowest levels of plasma MGO were associated with increased odds of having a lacunar infarct (OR: 2.26, 95 %CI: 1.27; 4.01). This was not observed for highest plasma MGO (OR: 1.56, 95 %CI: 0.85; 2.86).

Conclusion

Intermediate plasma MGO levels were associated with the presence of more lacunar infarcts. Further research is needed to determine whether MGO contributes to lacunar infarct formation in a causal manner.
背景:脑血管病(CSVD)和痴呆在老年人群中越来越普遍。糖尿病是心血管疾病和认知障碍的主要危险因素,但其潜在机制尚不清楚。甲基乙二醛(MGO)是糖酵解副产物和晚期糖基化终产物(AGEs)的前体,在糖尿病中升高并与微血管并发症有关。本研究的目的是在以人群为基础的环境中,研究血浆中MGO水平与心血管疾病和认知障碍的mri标志物之间的关系。方法:对马斯特里赫特研究(The Maastricht Study)的横断面数据进行分析,该研究是一项基于人群的2型糖尿病过采样队列(年龄59.7±8.2岁,男性49.9%,2型糖尿病26%)。空腹过夜后,使用UPLC-MS/MS检测血浆MGO浓度。参与者接受了MRI (n=1789)和认知测试(n=2515)。CSVD标志物包括白质高强度容积、腔隙性梗死和脑微出血。经混杂因素调整后的Logistic和线性回归评估了血浆MGO水平、心血管疾病标志物和认知功能之间的关系。结果:在任何结果中均未发现线性关联。当根据血浆MGO浓度将人群分为最低、中等、最高三组时,与最低水平的血浆MGO相比,中等水平的血浆MGO与腔隙性梗死的发生率增加相关(OR: 2.26, 95%CI: 1.27; 4.01)。这在血浆MGO最高时没有观察到(OR: 1.56, 95%CI: 0.85; 2.86)。结论:中间血浆MGO水平与更多腔隙性梗死的存在相关。需要进一步的研究来确定MGO是否与腔隙性梗死形成有因果关系。
{"title":"Associations between methylglyoxal and cerebral small vessel disease and cognitive function – The Maastricht Study","authors":"Eline Berends ,&nbsp;Simone J.P.M. Eussen ,&nbsp;Walter H. Backes ,&nbsp;Pieter C. Dagnelie ,&nbsp;Jacobus F.A. Jansen ,&nbsp;Bastiaan E. de Galan ,&nbsp;Marleen M.J. van Greevenbroek ,&nbsp;Sebastian Köhler ,&nbsp;Miranda T. Schram ,&nbsp;Anke Wesselius ,&nbsp;Robert J. van Oostenbrugge ,&nbsp;Sébastien Foulquier ,&nbsp;Casper G. Schalkwijk","doi":"10.1016/j.jstrokecerebrovasdis.2026.108578","DOIUrl":"10.1016/j.jstrokecerebrovasdis.2026.108578","url":null,"abstract":"<div><h3>Background</h3><div>Cerebral small vessel disease (CSVD) and dementia are increasingly prevalent in the aging population. Diabetes is a major risk factor for CSVD and cognitive impairment, but the underlying mechanisms remain unclear. Methylglyoxal (MGO), a glycolysis by-product and precursor of advanced glycation endproducts (AGEs), is elevated in diabetes and linked to microvascular complications. The aim of this study is to investigate the association between levels of MGO in plasma with MRI-derived markers of CSVD and cognitive impairment in a population-based setting.</div></div><div><h3>Methods</h3><div>Cross-sectional data from The Maastricht Study, a population-based cohort with an oversampling of type 2 diabetes (age 59.7 ± 8.2 years, 49.9 % male, 26 % type 2 diabetes), were analysed. Plasma MGO concentrations were measured using UPLC-MS/MS after overnight fasting. Participants underwent MRI (n = 1789) and cognitive testing (n = 2515). CSVD markers included white matter hyperintensity volume, lacunar infarcts, and cerebral microbleeds. Logistic and linear regressions, adjusted for confounders, assessed the associations between plasma MGO levels, CSVD markers, and cognitive function.</div></div><div><h3>Results</h3><div>No linear associations were found in any of the outcomes. When dividing the population into tertiles (lowest, intermediate, highest) based on plasma MGO concentration, intermediate compared to lowest levels of plasma MGO were associated with increased odds of having a lacunar infarct (OR: 2.26, 95 %CI: 1.27; 4.01). This was not observed for highest plasma MGO (OR: 1.56, 95 %CI: 0.85; 2.86).</div></div><div><h3>Conclusion</h3><div>Intermediate plasma MGO levels were associated with the presence of more lacunar infarcts. Further research is needed to determine whether MGO contributes to lacunar infarct formation in a causal manner.</div></div>","PeriodicalId":54368,"journal":{"name":"Journal of Stroke & Cerebrovascular Diseases","volume":"35 3","pages":"Article 108578"},"PeriodicalIF":1.8,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146097719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Transcatheter closure versus antithrombotic therapy for cryptogenic stroke in elderly patients with patent foramen ovale: a systematic review and meta-analysis of non-randomized studies 经导管闭合与抗血栓治疗治疗老年卵圆孔未闭患者隐源性卒中:一项非随机研究的系统回顾和荟萃分析
IF 1.8 4区 医学 Q3 NEUROSCIENCES Pub Date : 2026-03-01 Epub Date: 2026-01-16 DOI: 10.1016/j.jstrokecerebrovasdis.2026.108562
Yang Dong MD , Cong Lu MD , Tiantian Luo PhD , Hao Huang MD , Yan Xiong MD , Jie Zeng MD

Background

There is lacking of robust clinical evidence comparing transcatheter closure with antithrombotic therapy in elderly patent foramen ovale (PFO) patients with cryptogenic stroke.

Methods

The Pubmed, Embase, Web of Science, clinicaltrials.gov and Cochrane Library databases were systematically searched. Studies comparing transcatheter closure therapy with antithrombotic drug therapy in PFO patients in older age (≥55 years old) were included. The number of patients with and without events in both experimental group and control group were extracted. There were three study endpoints: composite endpoint of recurrent ischemic stroke and transient ischemic attack (TIA); all-cause death; new-onset atrial fibrillation. A random-effect model was performed. Heterogeneity among selected publications was assessed using Q-test based on a χ² test. I2>50% was defined as high heterogeneity. P < 0.05 was considered statistically significant.

Results

Nine studies of 7275 elderly PFO patients with cryptogenic stroke were included. Patients undergoing PFO closure had significantly lower risk of a composite endpoint of recurrent stroke and TIA (4.74% versus 8.08%, OR=0.517, 95% CI:0.325-0.821) and all-cause death (1.17% versus 1.24%, OR=0.531, 95% CI: 0.317-0.891). There was no significant different occurrence of new-onset atrial fibrillation between the two groups (3.81% versus 2.82%, OR=1.218, 95% CI: 0.826-1.798). None of the studies measuring the three endpoints manifested high heterogeneity.

Conclusions

PFO closure might reduce the risk of composite endpoint of recurrent stroke and TIA and all-cause death, while not increase the risk of new-onset atrial fibrillation comparing with medication therapy in elderly PFO patients with cryptogenic stroke. PFO closure should be considered part of a comprehensive secondary prevention strategy in elderly patients.
背景:对于老年隐源性脑卒中卵圆孔未闭(PFO)患者,比较经导管闭合与抗血栓治疗缺乏强有力的临床证据。方法:系统检索Pubmed、Embase、Web of Science、clinicaltrials.gov和Cochrane Library数据库。比较高龄PFO患者(≥55岁)经导管闭合治疗与抗血栓药物治疗的研究。提取实验组和对照组发生和未发生事件的患者数量。研究有三个终点:复发性脑卒中和短暂性脑缺血发作(TIA)的复合终点;全因死亡;新发心房颤动。采用随机效应模型。采用基于χ 2检验的q检验评估所选出版物的异质性。I2>50%定义为高异质性。P < 0.05为差异有统计学意义。结果:9项研究纳入7275例老年PFO伴隐源性卒中患者。接受PFO闭合的患者卒中和TIA复发的复合终点(4.74%对8.08%,OR=0.517, 95% CI: 0.25 -0.821)和全因死亡(1.17%对1.24%,OR=0.531, 95% CI: 0.317-0.891)的风险显著降低。两组间新发房颤发生率无显著差异(3.81% vs 2.82%, OR=1.218, 95% CI: 0.826-1.798)。测量这三个终点的研究均未显示出高度异质性。结论:与药物治疗相比,PFO关闭可降低老年PFO隐源性卒中合并TIA复合终点复发风险和全因死亡风险,但不会增加新发房颤的风险。PFO闭合应被视为老年患者综合二级预防策略的一部分。
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引用次数: 0
The role of artificial intelligence in estimating stroke events in Moyamoya patients: A systematic review and meta-analysis of diagnostic test accuracy 人工智能在估计烟雾病患者脑卒中事件中的作用:诊断测试准确性的系统回顾和meta分析。
IF 1.8 4区 医学 Q3 NEUROSCIENCES Pub Date : 2026-03-01 Epub Date: 2026-01-02 DOI: 10.1016/j.jstrokecerebrovasdis.2026.108542
Jeremiah Hilkiah Wijaya , Miguel Quintero Consuegra , Daniela A Perez-Chadid , Aafreen Azmi , Juan Pablo Avila Madrigal , Shane Shahrestani , Sofia Ramirez-Guerrero , Anil Nanda , Abdelrahman Ramadan Elashry , Nestor R. Gonzalez

Introduction

Moyamoya disease (MMD) and syndrome (MMS) are rare cerebrovascular arteriopathies marked by progressive internal carotid stenosis, fragile collateral networks, and a five-year stroke risk near 10% despite optimal care. Artificial-intelligence (AI) models integrating angiographic, perfusion, and clinical data show promise for risk stratification, but their diagnostic accuracy and clinical readiness remain uncertain.

Method

We conducted a systematic review of AI algorithms for predicting ischemic or hemorrhagic stroke events in angiographically or magnetic resonance imaging (MRI)-confirmed MMD/MMS. PubMed, EMBASE, and Scopus were searched through September 3, 2025, for English-language studies employing machine-learning, deep-learning, or radiomics models. We extracted sensitivity, specificity, and area under the curve (AUC) metrics and assessed study quality with Radiomics Quality Score and CLEAR checklists. Pooled estimates and summary receiver-operating characteristic curves were generated; decision-curve analysis evaluated clinical net benefit.

Results

Seven retrospective cohorts (n = 4,795) met inclusion criteria. The pooled sensitivity was 0.65 (95% CI 0.50–0.79) and specificity 0.85 (95% CI 0.82–0.89). The summary AUC was 0.85. Decision-curve analysis demonstrated that AI predictions improved net benefit over “treat-all” or “treat-none” strategies across relevant risk thresholds. Tree-based classifiers (XGBoost, random forest) showed more stable external performance than deep-learning networks. Explainability tools enhanced model interpretability.

Conclusion

AI models achieve moderate-to-high accuracy for stroke prediction in MMD/MMS and offer potential for individualized risk stratification. However, small single-center datasets, heterogeneous imaging protocols, and opaque modeling limit clinical adoption. Prospective multicenter validation, standardized data pipelines, and robust explainability frameworks are essential for integrating AI into routine neurovascular care.
烟雾病(MMD)和综合征(MMS)是一种罕见的脑血管动脉病变,其特征是进行性颈内动脉狭窄,侧枝网络脆弱,尽管采取了最佳治疗,但5年卒中风险仍接近10%。整合血管造影、灌注和临床数据的人工智能(AI)模型显示出风险分层的希望,但其诊断准确性和临床准备程度仍不确定。方法:我们对人工智能算法在血管造影或磁共振成像(MRI)证实的烟雾病/MMS中预测缺血性或出血性卒中事件进行了系统回顾。PubMed、EMBASE和Scopus检索了截至2025年9月3日使用机器学习、深度学习或放射组学模型的英语研究。我们提取敏感性、特异性和曲线下面积(AUC)指标,并使用放射组学质量评分和CLEAR检查表评估研究质量。生成汇总估计和汇总接收者工作特征曲线;决策曲线分析评估临床净收益。结果:7个回顾性队列(n = 4,795)符合纳入标准。合并敏感性为0.65 (95% CI 0.50-0.79),特异性为0.85 (95% CI 0.82-0.89)。总AUC为0.85。决策曲线分析表明,在相关风险阈值上,人工智能预测比“治疗所有”或“不治疗”策略提高了净效益。基于树的分类器(XGBoost、随机森林)表现出比深度学习网络更稳定的外部性能。可解释性工具增强了模型的可解释性。结论:人工智能模型对烟雾病/MMS的脑卒中预测达到了中至高精度,并提供了个性化风险分层的潜力。然而,小的单中心数据集、异构的成像方案和不透明的建模限制了临床应用。前瞻性多中心验证、标准化数据管道和强大的可解释性框架对于将人工智能整合到常规神经血管护理中至关重要。
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引用次数: 0
Factors associated with in-hospital case fatality following spontaneous intracerebral hemorrhage among young ghanaians: findings from a hospital-based stroke registry 加纳年轻人自发性脑出血后住院病死率相关因素:来自医院卒中登记的发现
IF 1.8 4区 医学 Q3 NEUROSCIENCES Pub Date : 2026-03-01 Epub Date: 2026-01-21 DOI: 10.1016/j.jstrokecerebrovasdis.2026.108568
Priscilla Abrafi Opare-Addo MD, MSCR , Fred Stephen Sarfo MD, PhD, PhD , Minas Aikins MD , Serwaa Asare-Bediako MD , Adwoa Agyemang Adu-Gyamfi MD , Nessya Taylor MD , Emmanuella Naa Ayerki Nartey MD , Maxwell Nyenaah BSc , Jessey Mahama Holu BSc , Samuel Kekeli MPhil , Christian Obirikorang PhD , Francis Agyemang-Yeboah PhD

Background

The incidence of spontaneous Intracerebral Hemorrhage (sICH) in Low-Middle-Income Countries (LMICs) has risen steeply over the past decade, with a relatively earlier age of onset and higher rates of adverse outcomes compared to the rest of the world.

Aim

To determine the factors associated with in-hospital case fatality among patients aged ≤ 50 years with spontaneous Intracerebral Hemorrhage, admitted to a Ghanaian tertiary Hospital.

Methods

We conducted a prospective cohort study among individuals aged 18-50 years admitted with Intracerebral Hemorrhage to Komfo Anokye Teaching Hospital over 2 years, from 2022 to 2023. Multivariable Logistic regression was performed to determine the factors associated with ICH-related case fatality during hospital admission. Survival was compared across categories of explanatory variables using the Kaplan-Meier curve. Predictors of time to death were identified using the Cox regression model.

Results

46.2% (190 out of 411) of all ICH cases were aged ≤ 50 years, with the majority (63.7%) of those affected in this age group being male. The overall case fatality rate among hospitalized patients in this age group was 27.4% (52 out of 190). The factors independently associated with in-hospital case fatality were the presence of aspiration pneumonia (aOR 6.00 (2.47-15.46), p=0.000), NIHSS score at the time of admission (aOR 1.16 (1.08-1.24), p=0.000), and the presence of neuroimaging features of raised intracranial pressure (aOR 2.66 (1.04-7.00), p=0.044). Independent predictors of time to death included the presence of aspiration pneumonia (aOR 3.51 (1.44-8.55), p=0.004) and NIHSS score (aOR 1.07 (1.01-1.13), p=1.27e-08).

Conclusions

Up to 1 in 4 young Ghanaian patients succumb to spontaneous ICH during hospitalization. Prevention, prompt detection, and management of complications, notably aspiration pneumonia during the acute phase of admission, may significantly reduce ICH-related mortality among young individuals in our setting.
背景:在过去十年中,中低收入国家(LMICs)自发性脑出血(sICH)的发病率急剧上升,与世界其他地区相比,自发性脑出血的发病年龄相对较早,不良后果发生率较高。目的:探讨加纳某三级医院收治的年龄≤50岁自发性脑出血患者住院病死率的相关因素。方法:从2022年到2023年,我们在Komfo Anokye教学医院进行了一项为期2年的18-50岁脑出血患者的前瞻性队列研究。采用多变量Logistic分析确定住院期间与脑出血相关病死率相关的因素。使用Kaplan-Meier曲线比较不同类别解释变量的生存率。使用Cox回归模型确定死亡时间的预测因子。结果:411例脑出血患者中46.2%(190例)年龄≤50岁,其中男性占63.7%。该年龄组住院患者的总病死率为27.4%(190人中有52人)。与住院病死率独立相关的因素为吸入性肺炎(aOR 6.00 (2.47 ~ 15.46), p=0.000)、入院时NIHSS评分(aOR 1.16 (1.08 ~ 1.24), p=0.000)、颅内压升高的神经影像学特征(aOR 2.66 (1.04 ~ 7.00), p=0.044)。死亡时间的独立预测因子包括吸入性肺炎(aOR 3.51 (1.44-8.55), p=0.004)和NIHSS评分(aOR 1.07 (1.01-1.13), p=1.27e-08)。结论:高达1 / 4的加纳年轻患者在住院期间死于自发性脑出血。预防、及时发现和处理并发症,特别是入院急性期的吸入性肺炎,可以显著降低我们研究环境中年轻人与ich相关的死亡率。
{"title":"Factors associated with in-hospital case fatality following spontaneous intracerebral hemorrhage among young ghanaians: findings from a hospital-based stroke registry","authors":"Priscilla Abrafi Opare-Addo MD, MSCR ,&nbsp;Fred Stephen Sarfo MD, PhD, PhD ,&nbsp;Minas Aikins MD ,&nbsp;Serwaa Asare-Bediako MD ,&nbsp;Adwoa Agyemang Adu-Gyamfi MD ,&nbsp;Nessya Taylor MD ,&nbsp;Emmanuella Naa Ayerki Nartey MD ,&nbsp;Maxwell Nyenaah BSc ,&nbsp;Jessey Mahama Holu BSc ,&nbsp;Samuel Kekeli MPhil ,&nbsp;Christian Obirikorang PhD ,&nbsp;Francis Agyemang-Yeboah PhD","doi":"10.1016/j.jstrokecerebrovasdis.2026.108568","DOIUrl":"10.1016/j.jstrokecerebrovasdis.2026.108568","url":null,"abstract":"<div><h3>Background</h3><div>The incidence of spontaneous Intracerebral Hemorrhage (sICH) in Low-Middle-Income Countries (LMICs) has risen steeply over the past decade, with a relatively earlier age of onset and higher rates of adverse outcomes compared to the rest of the world.</div></div><div><h3>Aim</h3><div>To determine the factors associated with in-hospital case fatality among patients aged ≤ 50 years with spontaneous Intracerebral Hemorrhage, admitted to a Ghanaian tertiary Hospital.</div></div><div><h3>Methods</h3><div>We conducted a prospective cohort study among individuals aged 18-50 years admitted with Intracerebral Hemorrhage to Komfo Anokye Teaching Hospital over 2 years, from 2022 to 2023. Multivariable Logistic regression was performed to determine the factors associated with ICH-related case fatality during hospital admission. Survival was compared across categories of explanatory variables using the Kaplan-Meier curve. Predictors of time to death were identified using the Cox regression model.</div></div><div><h3>Results</h3><div>46.2% (190 out of 411) of all ICH cases were aged ≤ 50 years, with the majority (63.7%) of those affected in this age group being male. The overall case fatality rate among hospitalized patients in this age group was 27.4% (52 out of 190). The factors independently associated with in-hospital case fatality were the presence of aspiration pneumonia (aOR 6.00 (2.47-15.46), p=0.000), NIHSS score at the time of admission (aOR 1.16 (1.08-1.24), p=0.000), and the presence of neuroimaging features of raised intracranial pressure (aOR 2.66 (1.04-7.00), p=0.044). Independent predictors of time to death included the presence of aspiration pneumonia (aOR 3.51 (1.44-8.55), p=0.004) and NIHSS score (aOR 1.07 (1.01-1.13), p=1.27e-08).</div></div><div><h3>Conclusions</h3><div>Up to 1 in 4 young Ghanaian patients succumb to spontaneous ICH during hospitalization. Prevention, prompt detection, and management of complications, notably aspiration pneumonia during the acute phase of admission, may significantly reduce ICH-related mortality among young individuals in our setting.</div></div>","PeriodicalId":54368,"journal":{"name":"Journal of Stroke & Cerebrovascular Diseases","volume":"35 3","pages":"Article 108568"},"PeriodicalIF":1.8,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146042267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exposure to cadmium, lead, and mercury and long-term mortality after stroke: a cohort study 接触镉、铅和汞与中风后的长期死亡率:一项队列研究。
IF 1.8 4区 医学 Q3 NEUROSCIENCES Pub Date : 2026-03-01 Epub Date: 2026-01-29 DOI: 10.1016/j.jstrokecerebrovasdis.2026.108577
Yanling Gao , Zhonghui Lin , Qingyue Dai , Qing Sun , Qingyan Su , Yijing Jiang

Background and objective

While the neurotoxic effects of cadmium, lead, and mercury are well-documented, their associations with mortality outcomes in stroke survivors remain unclear. This study aimed to investigate the relationships between blood concentrations of these metals and mortality risk in individuals with a history of stroke.

Methods

Data from the National Health and Nutrition Examination Survey (NHANES) and National Death Index (NDI) spanning 1999–2018 were analyzed, including 765 stroke survivors. Metal levels were measured via Inductively Coupled Plasma Mass Spectrometry (ICP-MS) and categorized into quartiles. Cox proportional hazards models evaluated associations with all-cause and cause-specific mortalities, adjusting for demographic, clinical, and lifestyle covariates in three hierarchical models. Hazard ratios (HRs) with 95% confidence intervals (CIs) were calculated.

Results

Higher cadmium levels were significantly associated with increased all-cause mortality (fully adjusted HR, 2.02, 95%CI 1.30 to 3.16, p = 0.002). Lead demonstrated a significant association only in the highest quartile for all-cause mortality (HR 1.63, 95%CI 1.04 to 2.57, p = 0.035). Mercury exhibited protective effects against all-cause (HR 0.54, 95%CI 0.34 to 0.87, p = 0.011) and malignant neoplasm mortality (HR 0.08, 95%CI 0.02 to 0.39, p = 0.002). No significant associations were observed for cadmium or lead with cardio-cerebrovascular mortality, nor for lead with malignant neoplasm mortality.

Conclusion

Elevated blood cadmium levels are independently associated with increased all-cause mortality in stroke survivors. Lead shows a modest association with all-cause mortality, while mercury may exert protective effects against specific mortality outcomes. Further studies are needed to confirm these findings and explore underlying mechanisms.
背景和目的:虽然镉、铅和汞的神经毒性作用有充分的文献记载,但它们与中风幸存者死亡率结果的关系尚不清楚。本研究旨在调查这些金属的血液浓度与中风史患者死亡风险之间的关系。方法:分析1999-2018年国家健康与营养调查(NHANES)和国家死亡指数(NDI)的数据,包括765名中风幸存者。通过电感耦合等离子体质谱(ICP-MS)测量金属水平,并将其分为四分位数。Cox比例风险模型评估了全因死亡率和原因特异性死亡率的相关性,并在三个分层模型中调整了人口统计学、临床和生活方式协变量。计算风险比(hr)和95%置信区间(ci)。结果:较高的镉水平与全因死亡率增加显著相关(完全校正风险比,2.02,95%可信区间1.30至3.16,p=0.002)。铅仅在全因死亡率最高的四分位数中显示出显著相关性(HR 1.63, 95%CI 1.04 ~ 2.57, p=0.035)。汞对全因肿瘤死亡率(HR 0.54, 95%CI 0.34 ~ 0.87, p=0.011)和恶性肿瘤死亡率(HR 0.08, 95%CI 0.02 ~ 0.39, p=0.002)均有保护作用。未观察到镉或铅与心脑血管死亡率、铅与恶性肿瘤死亡率有显著相关性。结论:血镉水平升高与卒中幸存者全因死亡率升高独立相关。铅显示出与全因死亡率的适度关联,而汞可能对特定的死亡率结果发挥保护作用。需要进一步的研究来证实这些发现并探索潜在的机制。
{"title":"Exposure to cadmium, lead, and mercury and long-term mortality after stroke: a cohort study","authors":"Yanling Gao ,&nbsp;Zhonghui Lin ,&nbsp;Qingyue Dai ,&nbsp;Qing Sun ,&nbsp;Qingyan Su ,&nbsp;Yijing Jiang","doi":"10.1016/j.jstrokecerebrovasdis.2026.108577","DOIUrl":"10.1016/j.jstrokecerebrovasdis.2026.108577","url":null,"abstract":"<div><h3>Background and objective</h3><div>While the neurotoxic effects of cadmium, lead, and mercury are well-documented, their associations with mortality outcomes in stroke survivors remain unclear. This study aimed to investigate the relationships between blood concentrations of these metals and mortality risk in individuals with a history of stroke.</div></div><div><h3>Methods</h3><div>Data from the National Health and Nutrition Examination Survey (NHANES) and National Death Index (NDI) spanning 1999–2018 were analyzed, including 765 stroke survivors. Metal levels were measured via Inductively Coupled Plasma Mass Spectrometry (ICP-MS) and categorized into quartiles. Cox proportional hazards models evaluated associations with all-cause and cause-specific mortalities, adjusting for demographic, clinical, and lifestyle covariates in three hierarchical models. Hazard ratios (HRs) with 95% confidence intervals (CIs) were calculated.</div></div><div><h3>Results</h3><div>Higher cadmium levels were significantly associated with increased all-cause mortality (fully adjusted HR, 2.02, 95%CI 1.30 to 3.16, <em>p</em> = 0.002). Lead demonstrated a significant association only in the highest quartile for all-cause mortality (HR 1.63, 95%CI 1.04 to 2.57, <em>p</em> = 0.035). Mercury exhibited protective effects against all-cause (HR 0.54, 95%CI 0.34 to 0.87, <em>p</em> = 0.011) and malignant neoplasm mortality (HR 0.08, 95%CI 0.02 to 0.39, <em>p</em> = 0.002). No significant associations were observed for cadmium or lead with cardio-cerebrovascular mortality, nor for lead with malignant neoplasm mortality.</div></div><div><h3>Conclusion</h3><div>Elevated blood cadmium levels are independently associated with increased all-cause mortality in stroke survivors. Lead shows a modest association with all-cause mortality, while mercury may exert protective effects against specific mortality outcomes. Further studies are needed to confirm these findings and explore underlying mechanisms.</div></div>","PeriodicalId":54368,"journal":{"name":"Journal of Stroke & Cerebrovascular Diseases","volume":"35 3","pages":"Article 108577"},"PeriodicalIF":1.8,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146097731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Assessment of perioperative outcome factors after hemicraniectomy confirms age as the prognostic factor in patients with middle cerebral artery infarction: Evidence from real-world data 半脑切除术后围手术期预后因素的评估证实年龄是大脑中动脉梗死患者的预后因素:来自现实世界数据的证据
IF 1.8 4区 医学 Q3 NEUROSCIENCES Pub Date : 2026-03-01 Epub Date: 2026-01-12 DOI: 10.1016/j.jstrokecerebrovasdis.2026.108557
Regina Isemann MD , Florian Wild MD , Paul Bronzlik MD , Joachim K. Krauss MD , Thomas Stüber MD , Kurt-Wolfram Sühs MD

Background

Malignant middle cerebral artery (MCA) infarction is a serious condition for which hemicraniectomy can improve survival and outcome. However, it remains unclear to what extent other perioperative factors contribute to the outcome.

Methods

This monocentric, retrospective observational study included patients with MCA infarction and subsequent hemicraniectomy. Perioperative parameters were collected from 68 patients between 01/2012 and 12/2020. Logistic regression analysis was performed to establish determinants for the outcome measured by the Modified Rankin Scale (mRS) (dichotomized in mRS 0-3: favorable outcome, mRS 4-6: poor outcome) 12 months after stroke.

Results

Before event, most patients had no impairment (mRS 0, 75 %) or mild impairment (mRS 1-3, 23.5 %). 12 months after stroke, 18 patients (32 %) had favorable outcome (mRS 0-3). In univariable analysis, age (OR[95 %CI]: 1.124[1.045,1.208], p = 0.002) and the pre-existing conditions diabetes (OR[95 %CI]: 10.625[1.279,88.293], p = 0.029) and hypertension (OR[95 %CI]: 3.875[1.159,12.961], p = 0.028) were associated with poor outcome, as were more points of effort for intensive care complex treatment in the Simplified Acute Physiology Score (SAPS) in the first two days after stroke (ORday1[95 %CIday1]: 1.109[1.023,1.203], pday1 = 0.012) (ORday2[95 %CIday2]: 1.209[1.078,1.355], pday2 = 0.001). All other collected periinterventional parameters (i.e. sedation, fever) did not influence the outcome. In multivariable analysis, older age (OR[95 %CI]: 1.107[1.029,1.190], p = 0.006) was found to be an independent predictor of higher mRS (4-6). For age, our ROC analysis showed a cut-off point of 57 years.

Conclusion

Our data provide information about changes in the degree of impairment and its improvement over time beyond the acute phase of stroke. Of all included parameters, age emerged as the most important prognostic factor.
恶性大脑中动脉(MCA)梗死是一种严重的疾病,半脑切除术可以提高生存率和预后。然而,尚不清楚其他围手术期因素对结果的影响程度。方法本研究为单中心、回顾性观察性研究,纳入MCA梗死患者和随后的半脑切除术患者。收集2012年1月至2020年12月期间68例患者的围手术期参数。采用Logistic回归分析确定脑卒中后12个月采用改良兰金量表(mRS)测量结果的决定因素(mRS分为0-3:预后良好,mRS 4-6:预后不良)。结果事件发生前,大多数患者无损伤(mRS 0.75%)或轻度损伤(mRS 1-3, 23.5%)。卒中后12个月,18例(32%)患者预后良好(mRS 0-3)。在单变量分析中,年龄(或1.124[95%可信区间]:[1.045,1.208],p = 0.002)和预先存在的条件下糖尿病(或10.625[95%可信区间]:[1.279,88.293],p = 0.029)和高血压(或3.875[95%可信区间]:[1.159,12.961],p = 0.028)与贫穷有关的结果,更有分的努力简化复杂重症监护治疗的急性生理评分(SAPS)后的头两天行程(ORday1 CIday1 [95%]: 1.109 (1.023, 1.203), pday1 = 0.012) (ORday2 CIday2 [95%]:1.209[1.078,1.355], pday2 = 0.001)。所有其他收集的围手术期参数(如镇静、发热)不影响结果。在多变量分析中,发现年龄较大(OR[95% CI]: 1.107[1.029,1.190], p = 0.006)是较高mRS的独立预测因子(4-6)。对于年龄,我们的ROC分析显示截断点为57岁。结论:我们的数据提供了脑卒中急性期后损伤程度的变化及其改善的相关信息。在所有纳入的参数中,年龄成为最重要的预后因素。
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引用次数: 0
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Journal of Stroke & Cerebrovascular Diseases
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