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Effect of stenoses and occlusions in the cerebral venous vasculature on intracranial venous hemodynamics - a patient-specific computational model 脑静脉血管狭窄和闭塞对颅内静脉血流动力学的影响——一种患者特异性计算模型。
IF 1.8 4区 医学 Q3 NEUROSCIENCES Pub Date : 2025-11-05 DOI: 10.1016/j.jstrokecerebrovasdis.2025.108486
Charlotte S. Weyland , Michael Neidlin , Cilli Danker , Linda Puppendahl , Christian Sitzer , Julian Wynhoff , Ulrich Steinseifer , Omid Nikoubashman

Background

Intracranial sinus stenoses (ISS) or sinus occlusions (ISO) can lead to elevated intracranial venous blood pressure. Treatment strategies are advancing, but clinical decision making and the prediction of treatment success is hampered by the variable venous anatomy. We aimed to create a patient-specific computational model that allows for simulating pathologies and their influence on venous flow dynamics and pressure.

Methods

The model was created based on a stroke patient’s CT-angiography using semi-automatic threshold-based segmentation with subsequent flow modeling through computational fluid dynamics. Venous flow velocities were compared to a healthy cohort’s flow encoded magnetic resonance imaging (4D Flow MRI). Nine scenarios, including ISS and ISO at different locations, were simulated and their influence on venous pressure and blood flow was quantified.

Results

In comparison to a healthy cohort’s 4D Flow MRI, the model showed comparable venous velocities at all reference points. Unilateral transverse sinus occlusion or stenosis led to compensatory contralateral flow and elevated pressures up to 12 mmHg. Extensive ISO or bilateral transverse ISS led to markedly increased pressures > 100 mmHg.

Conclusion

Our model depicts realistic venous blood pressures and gradients and could support in identifying patients with intracranial sinus stenosis or sinus occlusions profiting from endovascular treatment strategies.
背景:颅内窦狭窄(ISS)或窦性闭塞(SO)可导致颅内静脉压升高。治疗策略正在进步,但临床决策和治疗成功的预测受到可变静脉解剖的阻碍。我们的目标是创建一个患者特定的计算模型,允许模拟病理及其对静脉血流动力学和压力的影响。方法:基于脑卒中患者的ct血管造影,采用基于半自动阈值分割的方法建立模型,随后通过计算流体动力学建立血流模型。将静脉血流速度与健康队列的血流编码磁共振成像(4D flow MRI)进行比较。模拟不同位置的ISS和ISO 9种情况,量化其对静脉压和血流的影响。结果:与健康队列的4D血流MRI相比,该模型在所有参考点显示出相当的静脉速度。单侧横窦闭塞或狭窄导致代偿性对侧血流和血压升高高达12mmhg。广泛的SO或双侧横向ISS导致血压明显升高至100 mmHg。结论:我们的模型描述了真实的静脉血压和梯度,可以支持识别颅内窦狭窄或窦闭塞的患者,并从血管内治疗策略中获益。
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引用次数: 0
Indirect revascularization after bypass surgery for intracranial atherosclerotic steno-occlusive disease 颅内动脉粥样硬化性狭窄闭塞性疾病旁路手术后间接血运重建术
IF 1.8 4区 医学 Q3 NEUROSCIENCES Pub Date : 2025-11-05 DOI: 10.1016/j.jstrokecerebrovasdis.2025.108482
Yuwhan Chung M.D., Sung Ho Lee M.D., Ph.D., Kangmin Kim M.D., Ph.D., Hyun-Seung Kang M.D., Ph.D., Jeong Eun Kim M.D., Ph.D., Won-Sang Cho M.D., Ph.D.

Objectives

Indirect revascularization after bypass surgery for intracranial atherosclerotic steno-occlusive disease (ICAD) remains controversial. We aimed to evaluate indirect revascularization after direct bypass surgery in patients with ICAD.

Methods

Among 245 patients with ICAD who underwent direct bypass surgery between 2003 and 2022, 191 patients were ultimately enrolled in this study. Treatment outcomes were compared between combined bypass (n = 162 [84.8 %]) and direct bypass alone (n = 29) groups. Multivariable analyses were performed to identify significant predictors of indirect revascularization and favorable clinical outcomes.

Results

There were no significant differences in overall baseline characteristics or treatment outcomes between the two groups. At the last angiographic follow-up at 27.1 ± 27.1 months (range, 5.0–97.3 months), the rate of indirect revascularization was significantly higher in the combined bypass group than in the direct bypass alone group (39.5 % versus 17.2 %, P = .022). Significant predictors of indirect revascularization included combined bypass (OR 3.175, 95 % CI 1.142–8.826; P = .027) rather than direct bypass alone, and significant stenosis and occlusion in the middle cerebral artery rather than the internal carotid artery (OR 1.961, 95 % CI 1.022–3.763; P = .043). An additional analysis revealed that a good preoperative clinical status (OR 0.141, 95 % CI 0.066–0.302, P < .001) and indirect revascularization (OR 5.508, 95 % CI 1.003–30.245, P = .050) were independent predictors of favorable clinical outcomes.

Conclusion

Indirect revascularization was more pronounced after combined bypass than direct bypass alone and was a significant predictor of favorable clinical outcomes.
目的颅内动脉粥样硬化性狭窄闭塞病(ICAD)旁路手术后间接血运重建术仍有争议。我们的目的是评估ICAD患者直接搭桥手术后的间接血运重建。方法在2003年至2022年期间接受直接搭桥手术的245例ICAD患者中,191例患者最终入选本研究。比较联合搭桥组(n = 162[84.8%])和单纯搭桥组(n = 29)的治疗结果。进行多变量分析以确定间接血运重建的重要预测因素和良好的临床结果。结果两组患者的总体基线特征和治疗结果无显著差异。在最后一次血管造影随访(27.1±27.1个月,范围5.0 ~ 97.3个月)时,联合搭桥组间接血运重建率明显高于单独搭桥组(39.5% vs 17.2%, P = 0.022)。间接血运重建的重要预测因素包括联合搭桥(OR 3.175, 95% CI 1.142-8.826; P = 0.027)而不是单独直接搭桥,以及大脑中动脉明显狭窄和闭塞而不是颈内动脉(OR 1.961, 95% CI 1.022-3.763; P = 0.043)。另一项分析显示,良好的术前临床状态(OR 0.141, 95% CI 0.066-0.302, P < 001)和间接血运重建(OR 5.508, 95% CI 1.003-30.245, P = 0.050)是良好临床结果的独立预测因子。结论联合搭桥术后间接血运重建比单独直接搭桥术后更为明显,是良好临床预后的重要预测指标。
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引用次数: 0
Extensive ischemic change on stroke presentation is uncommon: A population-based study 广泛的缺血性改变在卒中表现中并不常见:一项基于人群的研究。
IF 1.8 4区 医学 Q3 NEUROSCIENCES Pub Date : 2025-11-05 DOI: 10.1016/j.jstrokecerebrovasdis.2025.108488
Yasmin N Aziz MD , Achala Vagal MD, MSc , Heidi Sucharew PhD , Brady J Williamson PhD , Vivek Khandwala PhD , Lily Wang MBBS, MPH , Rebecca Cornelius MD , Mary F Gaskill-Shipley MD , Thomas A Tomsick MD , David T Wang MD , Shantala Gangatirkar , Thomas Maloney , Paul S Horn PhD , Mary Haverbusch RN , Janice A Carrozzella RN , David J Robinson MD , Robert J Stanton MD , Eva A Mistry MBBS, MSCI , Brett Kissela MD, MS , Pooja Khatri MD, MSc

Background

Acute ischemic stroke (AIS) treatment and prognosis depend on the extent of ischemia sustained at time of presentation. The Alberta Stroke Program Early CT Score (ASPECTS) is used for anterior circulation stroke triage and decision making. We sought to determine the distribution of baseline ASPECTS at a population level.

Methods

Clinical imaging was collected from hospitalized AIS patients ascertained in a metropolitan population of 1.3 million as part of the Greater Cincinnati/Northern Kentucky Stroke Study. Patients presenting to an emergency department (ED) in 2015 within 24 hours of anterior circulation ischemic stroke were included. Events were excluded if last known normal (LKN) was unavailable, occurred in the inpatient setting, if CTH was unavailable, or if a previous ischemic event was already adjudicated during the study period. Blinded central neuroradiologists evaluated presenting ASPECTS. National Institutes of Health Stroke Scale (NIHSS) score ≥6 was used as a surrogate for large vessel occlusion, as routine baseline vessel imaging was performed inconsistently during the 2015 study period.

Results

Among 1,518 events of AIS presenting within 24 hours of LKN, 949 were anterior circulation first-time events with baseline ASPECTS status available, of which 520 (55 %) had baseline vessel imaging. Among these 949 patients (mean age 71 [SD 14] years, median ED arrival time 5.2 [IQR 1.3-13.2] hours, median NIHSS 4 [IQR 1-9]), 920 (96.9 %) had an ASPECTS ≥6, of which 844 had ASPECTS 9-10. Of the 373 patients with a NIHSS ≥6 at presentation, 344 (92.2 %) had an ASPECTS ≥6. Of the 150 patients presenting with NIHSS ≥6 beyond 6 hours of LKN time, 129 (86.0 %) had an ASPECTS ≥6.

Conclusions

In our population, most patients presenting within 24 hours of LKN had ASPECTS ≥6. Even in patients with NIHSS ≥6, only 14 % of patients presenting in the extended time window had ASPECTS <6. These results can inform resource utilization and clinical trial design.
背景:急性缺血性脑卒中(AIS)的治疗和预后取决于发病时持续的缺血程度。阿尔伯塔中风项目早期CT评分(ASPECTS)用于前循环中风分诊和决策。我们试图确定基线方面在人口水平上的分布。方法:作为大辛辛那提/北肯塔基卒中研究的一部分,从130万大都市人口中确定的住院AIS患者收集临床影像学资料。纳入2015年24小时内就诊于急诊科(ED)的前循环缺血性卒中患者。如果最后已知的正常(LKN)不可用,发生在住院环境中,如果CTH不可用,或者如果先前的缺血事件在研究期间已经被判定,则排除事件。盲法中枢神经放射学家评估表现方面。美国国立卫生研究院卒中量表(NIHSS)评分≥6分作为大血管闭塞的替代指标,因为在2015年研究期间,常规基线血管成像不一致。结果:在LKN后24小时内出现的1518例AIS事件中,949例是具有基线ASPECTS状态的前循环首次事件,其中520例(55%)有基线血管成像。949例患者(平均年龄71 [SD 14]岁,中位ED到达时间5.2 [IQR 1.3-13.2]小时,中位NIHSS 4 [IQR 1-9])中,920例(96.9%)的ASPECTS≥6,其中844例(9-10)。在就诊时NIHSS≥6的373例患者中,344例(92.2%)的ASPECTS≥6。在超过LKN时间的150例NIHSS≥6的患者中,129例(86.0%)的ASPECTS≥6。结论:在我们的人群中,大多数在LKN 24小时内出现的患者的ASPECTS≥6。即使在NIHSS≥6的患者中,只有14%的患者在延长的时间窗内出现了aspect
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引用次数: 0
The association between personality traits and stroke - A European cross-sectional study 性格特征与中风之间的关系——一项欧洲横断面研究。
IF 1.8 4区 医学 Q3 NEUROSCIENCES Pub Date : 2025-11-05 DOI: 10.1016/j.jstrokecerebrovasdis.2025.108489
Björn Agvall , Junmei Miao Jonasson

Background

Stroke is a leading cause of death and disability worldwide. While personality traits have been associated with various health outcomes, their association with stroke remains underexplored.

Methods

This is a cross-sectional study based on wave 9 data from the Survey of Health, Ageing and Retirement in Europe (SHARE). Individuals aged 50 years or older were included in the study. The Big Five personality traits constituted the main exposure variables and were analyzed separately. The value of each personality trait variable was standardized. The association between each personality trait and stroke was examined by logistic regression models which were used to estimate the odds ratios (ORs) and 95 % Confidence Intervals (CIs).

Results

A total of 2947 participants reported having a stroke in this study. The odds of stroke were higher in individuals with greater neuroticism (OR: 1.28 (95 % CI: 1.18 - 1.40). Higher Openness and Conscientiousness were associated with decreased odds of stroke (OR: 0.90, 95 % CI: [0.82 – 0.98]) and (OR: 0.90, 95 % CI: [0.83 – 0.98]), respectively. There were no significant associations between Extraversion or Agreeableness and the odds of stroke, respectively.

Conclusions

Personality traits, particularly Neuroticism, Openness, and Conscientiousness, were significantly associated with the prevalence of stroke in older European adults. Findings should be interpreted in light of the cross-sectional design.
背景:中风是世界范围内死亡和残疾的主要原因。虽然人格特征与各种健康结果有关,但它们与中风的关系仍未得到充分研究。方法:这是一项基于欧洲健康、老龄化和退休调查(SHARE)第9波数据的横断面研究。年龄在50岁或以上的人被纳入研究。五大人格特征构成主要暴露变量,分别进行分析。将各人格特征变量的值标准化。每个人格特质与中风之间的关联通过逻辑回归模型进行检验,该模型用于估计优势比(ORs)和95%置信区间(ci)。结果:在这项研究中,共有2947名参与者报告发生了中风。神经质程度越高的人中风的几率越高(OR: 1.28 (95% CI: 1.18 - 1.40)。较高的开放性和严谨性分别与卒中发生率降低相关(OR: 0.90, 95% CI:[0.82 - 0.98])和(OR: 0.90, 95% CI:[0.83 - 0.98])。外向性和宜人性分别与中风的几率没有显著的联系。结论:人格特征,特别是神经质、开放性和尽责性,与欧洲老年人中风的患病率显著相关。结果应根据横断面设计进行解释。
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引用次数: 0
Mode of nutrition as a reflection of swallowing ability in acute and sub-acute stroke: Validation of a bedside tool 急性和亚急性中风患者吞咽能力的营养模式:一种床边工具的验证。
IF 1.8 4区 医学 Q3 NEUROSCIENCES Pub Date : 2025-11-04 DOI: 10.1016/j.jstrokecerebrovasdis.2025.108484
Gwenllian Wilkinson BMedSci , Lisa F Everton PhD, MPhil , Kailash Krishnan PhD FRCP , Jacqueline Benfield PhD, MSc , Shaheen Hamdy MD FRCP , Philip M Bath DSc FMedSci

Background

The Feeding Status Scale (FSS) is a 7-point scale based on mode of nutrition in patients with swallowing impairment: normal diet, soft-diet, nasogastric-tube feeding, percutaneous endoscopic gastrostomy tube-feeding, parenteral fluids, no fluids/food and death. We assessed whether the FSS is a valid and reliable scale of feeding status.

Methods

Validation was established through secondary analysis of individual patient data from randomised trials in hospitalised patients with stroke. Validation was assessed as concurrent and predictive validity, intra- and inter-rater reliability, content validity (using untrained assessors) and minimum clinically important difference.

Results

Data were obtained from four trials with total 8435 participants, mean age 70.2 years. In stroke trial populations with or without dysphagia, FSS was associated with other stroke scales (motor impairment, dependency, mood, cognition and quality of life) at baseline (concurrent validity, e.g. motor impairment p < 0.001) and during follow-up (predictive validity, e.g. dependence, cognition, quality of life, all p < 0.001). Both intra- and inter-rater reliability showed excellent agreement (intraclass correlation coefficient ≥0.92). Item level content validity index rating indicated good-excellent (I-CVI 0.63-1.0) relevance of each point of the scale. Scale level content validity index rating was good (S-CVI-Ave 0.83). Within scale minimum clinically important difference (MCID) was found to be 1 point.

Conclusions

Mode of nutrition as assessed using the FSS is closely associated with swallow impairment and produces reliable results without specific training. FSS had good-excellent content validity, can be used with established stroke measures at different time points and is associated with swallowing impairment.
背景:进食状态量表(FSS)是一个基于吞咽障碍患者营养模式的7分制量表:正常饮食、软性饮食、鼻胃管喂养、经皮内镜胃造口管喂养、肠外液体、无液体/食物和死亡。我们评估了FSS是否是一个有效和可靠的喂养状况量表。方法:通过对住院脑卒中患者随机试验的个体患者数据进行二次分析,建立验证。验证评估为并发效度和预测效度、评估者内部和评估者之间的信度、内容效度(使用未经训练的评估者)和最小临床重要差异。结果:数据来自4项试验,共8435名参与者,平均年龄70.2岁。在有或没有吞咽困难的卒中试验人群中,FSS在基线时与其他卒中量表(运动障碍、依赖性、情绪、认知和生活质量)相关(并发效度,例如运动障碍)。结论:使用FSS评估的营养模式与吞咽障碍密切相关,无需特殊训练即可产生可靠的结果。FSS具有良好的内容效度,可在不同时间点与已建立的卒中测量方法一起使用,并与吞咽障碍有关。
{"title":"Mode of nutrition as a reflection of swallowing ability in acute and sub-acute stroke: Validation of a bedside tool","authors":"Gwenllian Wilkinson BMedSci ,&nbsp;Lisa F Everton PhD, MPhil ,&nbsp;Kailash Krishnan PhD FRCP ,&nbsp;Jacqueline Benfield PhD, MSc ,&nbsp;Shaheen Hamdy MD FRCP ,&nbsp;Philip M Bath DSc FMedSci","doi":"10.1016/j.jstrokecerebrovasdis.2025.108484","DOIUrl":"10.1016/j.jstrokecerebrovasdis.2025.108484","url":null,"abstract":"<div><h3>Background</h3><div>The Feeding Status Scale (FSS) is a 7-point scale based on mode of nutrition in patients with swallowing impairment: normal diet, soft-diet, nasogastric-tube feeding, percutaneous endoscopic gastrostomy tube-feeding, parenteral fluids, no fluids/food and death. We assessed whether the FSS is a valid and reliable scale of feeding status.</div></div><div><h3>Methods</h3><div>Validation was established through secondary analysis of individual patient data from randomised trials in hospitalised patients with stroke. Validation was assessed as concurrent and predictive validity, intra- and inter-rater reliability, content validity (using untrained assessors) and minimum clinically important difference.</div></div><div><h3>Results</h3><div>Data were obtained from four trials with total 8435 participants, mean age 70.2 years. In stroke trial populations with or without dysphagia, FSS was associated with other stroke scales (motor impairment, dependency, mood, cognition and quality of life) at baseline (concurrent validity, e.g. motor impairment <em>p</em> &lt; 0.001) and during follow-up (predictive validity, e.g. dependence, cognition, quality of life, all <em>p</em> &lt; 0.001). Both intra- and inter-rater reliability showed excellent agreement (intraclass correlation coefficient ≥0.92). Item level content validity index rating indicated good-excellent (I-CVI 0.63-1.0) relevance of each point of the scale. Scale level content validity index rating was good (S-CVI-Ave 0.83). Within scale minimum clinically important difference (MCID) was found to be 1 point.</div></div><div><h3>Conclusions</h3><div>Mode of nutrition as assessed using the FSS is closely associated with swallow impairment and produces reliable results without specific training. FSS had good-excellent content validity, can be used with established stroke measures at different time points and is associated with swallowing impairment.</div></div>","PeriodicalId":54368,"journal":{"name":"Journal of Stroke & Cerebrovascular Diseases","volume":"34 12","pages":"Article 108484"},"PeriodicalIF":1.8,"publicationDate":"2025-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145461175","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
Cerebral augmentation index derived from external counterpulsation predicts ischemic stroke outcome: A prospective observational study 由体外反搏得出的脑增强指数预测缺血性卒中结局:一项前瞻性观察研究。
IF 1.8 4区 医学 Q3 NEUROSCIENCES Pub Date : 2025-11-03 DOI: 10.1016/j.jstrokecerebrovasdis.2025.108485
Lixia Zhu PhD , Zhao Pu , Thomas W. Leung MD , Lawrence Ka Sing Wong MD , Jack Jiaqi Zhang PhD , Li Xiong PhD

Background and Purpose

External counterpulsation (ECP) noninvasively augments cerebral blood flow in patients with ischemic stroke. We investigated whether the cerebral augmentation index (CAI), measured by transcranial Doppler (TCD) during ECP, could predict the functional outcome of ischemic stroke.

Methods

Patients with unilateral ischemic stroke in the anterior circulation territory were enrolled within 7 days of symptom onset. Mean flow velocities in both middle cerebral arteries (MCA) were monitored by TCD before, during and immediately after ECP. CAI was defined as the percentage increase in MCA mean flow velocity during ECP relative to baseline. TCD data from the ipsilateral and contralateral sides of the cerebral infarct were analyzed and compared between patients with good outcomes (modified Rankin Scale (mRS) 0-2) and those with poor outcomes (mRS 3-6) at 3 months post-stroke.

Results

Among 200 recruited patients (mean age, 64.5 ± 8.9 years; 86.5 % men), functional outcomes were good in 148 (74.0 %) and poor in 52 (26.0 %). Admission NIH Stroke Scale, history of ischemic heart disease, and CAI on both the ipsilateral and contralateral sides differed significantly between the two groups (all P < 0.05). In multivariate analysis, NIH Stroke Scale (OR, 1.677 [95 % CI, 1.363-2.064]; P < 0.001), ipsilateral CAI (OR, 1.282 [95 % CI, 1.148-1.646]; P = 0.012), and contralateral CAI (OR, 1.104 [95 % CI, 1.002-1.234]; P = 0.038) independently predicted poor functional outcomes.

Conclusion

CAI, a cerebral hemodynamic index measured over the MCA on either the ipsilateral or contralateral side of an acute cerebral infarct, may predict unfavorable stroke outcomes.
背景与目的:体外反搏(ECP)无创增加缺血性脑卒中患者的脑血流量。我们研究了ECP期间经颅多普勒(TCD)测量的脑增强指数(CAI)是否可以预测缺血性卒中的功能结局。方法:选取症状出现后7天内单侧前循环区域缺血性脑卒中患者。在ECP前、中、后分别用TCD监测两脑中动脉(MCA)平均血流速度。CAI定义为ECP期间MCA平均流速相对于基线增加的百分比。分析脑梗死同侧和对侧TCD数据,并比较卒中后3个月预后良好(改良Rankin量表(mRS) 0-2)和预后较差(mRS 3-6)的患者。结果:纳入的200例患者(平均年龄64.5±8.9岁,男性86.5%)中,148例(74.0%)功能预后良好,52例(26.0%)功能预后差。两组入院时NIH卒中量表、缺血性心脏病史、同侧和对侧CAI差异均有统计学意义(P < 0.05)。在多变量分析中,NIH卒中量表(OR, 1.677 [95% CI, 1.363-2.064]; P < 0.001)、同侧CAI (OR, 1.282 [95% CI, 1.148-1.646]; P=0.012)和对侧CAI (OR, 1.104 [95% CI, 1.002-1.234]; P=0.038)独立预测功能不良结局。结论:CAI是在急性脑梗死的同侧或对侧的MCA上测量的脑血流动力学指数,可以预测不良的脑卒中结局。
{"title":"Cerebral augmentation index derived from external counterpulsation predicts ischemic stroke outcome: A prospective observational study","authors":"Lixia Zhu PhD ,&nbsp;Zhao Pu ,&nbsp;Thomas W. Leung MD ,&nbsp;Lawrence Ka Sing Wong MD ,&nbsp;Jack Jiaqi Zhang PhD ,&nbsp;Li Xiong PhD","doi":"10.1016/j.jstrokecerebrovasdis.2025.108485","DOIUrl":"10.1016/j.jstrokecerebrovasdis.2025.108485","url":null,"abstract":"<div><h3>Background and Purpose</h3><div>External counterpulsation (ECP) noninvasively augments cerebral blood flow in patients with ischemic stroke. We investigated whether the cerebral augmentation index (CAI), measured by transcranial Doppler (TCD) during ECP, could predict the functional outcome of ischemic stroke.</div></div><div><h3>Methods</h3><div>Patients with unilateral ischemic stroke in the anterior circulation territory were enrolled within 7 days of symptom onset. Mean flow velocities in both middle cerebral arteries (MCA) were monitored by TCD before, during and immediately after ECP. CAI was defined as the percentage increase in MCA mean flow velocity during ECP relative to baseline. TCD data from the ipsilateral and contralateral sides of the cerebral infarct were analyzed and compared between patients with good outcomes (modified Rankin Scale (mRS) 0-2) and those with poor outcomes (mRS 3-6) at 3 months post-stroke.</div></div><div><h3>Results</h3><div>Among 200 recruited patients (mean age, 64.5 ± 8.9 years; 86.5 % men), functional outcomes were good in 148 (74.0 %) and poor in 52 (26.0 %). Admission NIH Stroke Scale, history of ischemic heart disease, and CAI on both the ipsilateral and contralateral sides differed significantly between the two groups (all <em>P</em> &lt; 0.05). In multivariate analysis, NIH Stroke Scale (OR, 1.677 [95 % CI, 1.363-2.064]; <em>P</em> &lt; 0.001), ipsilateral CAI (OR, 1.282 [95 % CI, 1.148-1.646]; <em>P</em> = 0.012), and contralateral CAI (OR, 1.104 [95 % CI, 1.002-1.234]; <em>P</em> = 0.038) independently predicted poor functional outcomes.</div></div><div><h3>Conclusion</h3><div>CAI, a cerebral hemodynamic index measured over the MCA on either the ipsilateral or contralateral side of an acute cerebral infarct, may predict unfavorable stroke outcomes.</div></div>","PeriodicalId":54368,"journal":{"name":"Journal of Stroke & Cerebrovascular Diseases","volume":"34 12","pages":"Article 108485"},"PeriodicalIF":1.8,"publicationDate":"2025-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145454474","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
Severe ADAMTS-13 deficiency without hemolysis as a cause of cryptogenic stroke: A single center case series 无溶血的严重ADAMTS-13缺乏作为隐源性卒中的原因:单中心病例系列
IF 1.8 4区 医学 Q3 NEUROSCIENCES Pub Date : 2025-11-01 DOI: 10.1016/j.jstrokecerebrovasdis.2025.108483
Johanna Seiden MD, MPH , Juan Felipe Daza-Ovalle MD , Zhengrui Xiao MD , Olga Rubalsky MD , Irina Murakhovskaya MD , Ellen Friedman MD , Kathryn Kirchoff-Torres MD , Daniel Labovitz MD, MS , Charles Esenwa MD, MS

Introduction

Cerebral Infarction due to Severe ADAMTS-13 Deficiency (CISAD) remains an underrecognized cause of cryptogenic stroke. Despite the absence of classic hematologic features, CISAD confers a risk of recurrent ischemic events if not promptly identified and treated. Increased clinical awareness is essential to prompt appropriate laboratory testing and reduce stroke recurrence.

Methods

We conducted a retrospective cohort study at Montefiore Medical Center to identify patients with ischemic stroke and severe ADAMTS-13 deficiency from January 2017 to June 2025. Of 235 screened patients, 197 had an acute ischemic stroke. 9 met final inclusion criteria for CISAD: confirmed ischemic stroke, severe ADAMTS-13 deficiency at index event, and absence of microangiopathic hemolytic anemia (MAHA). Clinical, hematologic, and imaging characteristics were analyzed descriptively in the final cohort.

Results

Of 9 patients, 7 were female. Mean age was 51.3 years. Platelet counts were normal in 6 of 9 cases. 4 of 9 patients had large vessel occlusions. 3 patients had multifocal infarcts. 8 of 9 patients met Embolic Stroke of Undetermined Source (ESUS) criteria before ADAMTS-13 testing. 1 had three ESUS events before ADAMTS-13 deficiency was identified. The remaining 6 patients had an established history of thrombotic thrombocytopenic purpura (TTP) and presented with recurrent strokes and severe ADAMTS-13 deficiency. 2 patients had multiple strokes with severe ADAMTS-13 deficiency. All patients were treated with steroids, therapeutic plasma-exchange (TPE), and/or Rituximab.

Conclusion

CISAD may present without hematologic abnormalities and should be considered as a rare cause of stroke. Early ADAMTS-13 activity and inhibitor testing in select patients may allow timely diagnosis, treatment, and prevention of recurrence.
由于严重ADAMTS-13缺乏症引起的脑梗死(CISAD)仍然是一种未被充分认识的隐源性卒中原因。尽管没有典型的血液学特征,如果不及时发现和治疗,CISAD会有复发性缺血性事件的风险。提高临床意识对于促进适当的实验室检测和减少卒中复发至关重要。方法:我们在Montefiore医学中心进行了一项回顾性队列研究,以确定2017年1月至2025年6月期间缺血性卒中和严重ADAMTS-13缺乏症患者。在235名接受筛查的患者中,197名患有急性缺血性中风。9例符合CISAD的最终纳入标准:确诊缺血性卒中,指数事件时严重ADAMTS-13缺乏,无微血管病溶血性贫血(MAHA)。在最后的队列中,对临床、血液学和影像学特征进行描述性分析。结果:9例患者中,女性7例。平均年龄51.3岁。9例患者中6例血小板计数正常。9例患者中4例有大血管闭塞。3例出现多灶性梗死。在ADAMTS-13检测前,9例患者中有8例符合来历不明的栓塞性卒中(ESUS)标准。在确定ADAMTS-13缺陷之前,我有三次ESUS事件。其余6例患者有血栓性血小板减少性紫癜(TTP)病史,并伴有卒中复发和严重的ADAMTS-13缺乏。2例多发卒中伴严重ADAMTS-13缺乏症。所有患者均接受类固醇、治疗性血浆置换(TPE)和/或利妥昔单抗治疗。结论:CISAD可能没有血液学异常,应考虑为一种罕见的中风原因。在选定的患者中进行早期ADAMTS-13活性和抑制剂测试可能有助于及时诊断、治疗和预防复发。
{"title":"Severe ADAMTS-13 deficiency without hemolysis as a cause of cryptogenic stroke: A single center case series","authors":"Johanna Seiden MD, MPH ,&nbsp;Juan Felipe Daza-Ovalle MD ,&nbsp;Zhengrui Xiao MD ,&nbsp;Olga Rubalsky MD ,&nbsp;Irina Murakhovskaya MD ,&nbsp;Ellen Friedman MD ,&nbsp;Kathryn Kirchoff-Torres MD ,&nbsp;Daniel Labovitz MD, MS ,&nbsp;Charles Esenwa MD, MS","doi":"10.1016/j.jstrokecerebrovasdis.2025.108483","DOIUrl":"10.1016/j.jstrokecerebrovasdis.2025.108483","url":null,"abstract":"<div><h3>Introduction</h3><div>Cerebral Infarction due to Severe ADAMTS-13 Deficiency (CISAD) remains an underrecognized cause of cryptogenic stroke. Despite the absence of classic hematologic features, CISAD confers a risk of recurrent ischemic events if not promptly identified and treated. Increased clinical awareness is essential to prompt appropriate laboratory testing and reduce stroke recurrence.</div></div><div><h3>Methods</h3><div>We conducted a retrospective cohort study at Montefiore Medical Center to identify patients with ischemic stroke and severe ADAMTS-13 deficiency from January 2017 to June 2025. Of 235 screened patients, 197 had an acute ischemic stroke. 9 met final inclusion criteria for CISAD: confirmed ischemic stroke, severe ADAMTS-13 deficiency at index event, and absence of microangiopathic hemolytic anemia (MAHA). Clinical, hematologic, and imaging characteristics were analyzed descriptively in the final cohort.</div></div><div><h3>Results</h3><div>Of 9 patients, 7 were female. Mean age was 51.3 years. Platelet counts were normal in 6 of 9 cases. 4 of 9 patients had large vessel occlusions. 3 patients had multifocal infarcts. 8 of 9 patients met Embolic Stroke of Undetermined Source (ESUS) criteria before ADAMTS-13 testing. 1 had three ESUS events before ADAMTS-13 deficiency was identified. The remaining 6 patients had an established history of thrombotic thrombocytopenic purpura (TTP) and presented with recurrent strokes and severe ADAMTS-13 deficiency. 2 patients had multiple strokes with severe ADAMTS-13 deficiency. All patients were treated with steroids, therapeutic plasma-exchange (TPE), and/or Rituximab.</div></div><div><h3>Conclusion</h3><div>CISAD may present without hematologic abnormalities and should be considered as a rare cause of stroke. Early ADAMTS-13 activity and inhibitor testing in select patients may allow timely diagnosis, treatment, and prevention of recurrence.</div></div>","PeriodicalId":54368,"journal":{"name":"Journal of Stroke & Cerebrovascular Diseases","volume":"34 12","pages":"Article 108483"},"PeriodicalIF":1.8,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145440473","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
Investigating stroke-related vision impairments and time to incident dementia diagnosis 调查中风相关的视力障碍和痴呆诊断的时间。
IF 1.8 4区 医学 Q3 NEUROSCIENCES Pub Date : 2025-10-30 DOI: 10.1016/j.jstrokecerebrovasdis.2025.108480
Kimberly Hreha , Marissa C. Ashner , Sarah Peskoe , Timothy Reistetter , Priya Palta , Lisa Wruck , Rebecca Gottesman , B. Gwen Windham , Heather E. Whitson
Vision loss is a risk factor for dementia, but it is unknown whether stroke-related vision impairment is linked to dementia risk in stroke survivors. This secondary analysis aimed to quantify the association between stroke-related vision impairment and time to incident dementia diagnosis, from time of stroke, using the Arthrosclerosis Risk in Communities study dataset. We included participants who sustained a non-fatal probable or definite ischemic, incident stroke captured from hospital surveillance during the study period and excluded those who were diagnosed with incident dementia prior to or less than half a year after the incident stroke. The association between stroke-related vision impairment (binary) and time from incident stroke to dementia diagnosis was analyzed using a Fine-Gray survival model to account for the competing risk of death, adjusting for age at incident stroke, stroke severity, biological sex, education and race-center. Among 787 stroke survivors, 31 % were diagnosed with dementia during the follow-up period and 19.5 % had stroke-related vision impairment. The presence of stroke-related vision impairment was not significantly associated with dementia diagnosis (HR = 1.18; 95 % CI 0.85, 1.63; p = 0.32). While results suggest that stroke-related vision impairment corresponds to a higher cumulative incidence of dementia, the association was not statistically significant.
视力丧失是痴呆症的一个危险因素,但目前尚不清楚中风相关的视力损害是否与中风幸存者患痴呆症的风险有关。这项二级分析旨在利用社区关节硬化风险研究数据集,量化卒中相关视力损害与卒中时间到痴呆诊断之间的关系。我们纳入了在研究期间从医院监测中获得的非致命性的、可能的或明确的缺血性卒中的参与者,排除了那些在卒中发生前或发生后不到半年被诊断为痴呆的参与者。使用Fine-Gray生存模型分析卒中相关视力障碍(二元)与卒中至痴呆诊断时间之间的关联,以考虑卒中发生时的年龄、卒中严重程度、生理性别、教育程度和种族中心等因素的竞争死亡风险。在787名中风幸存者中,31%在随访期间被诊断患有痴呆症,19.5%患有与中风相关的视力障碍。卒中相关视力障碍的存在与痴呆诊断无显著相关性(HR=1.18; 95% CI 0.85, 1.63; p = 0.32)。虽然研究结果表明,中风相关的视力损害与较高的痴呆累积发病率相对应,但这种关联在统计上并不显著。
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引用次数: 0
White matter injury in young rats with cerebral palsy: the role of massage in regulating exosomes via the chemokine axis 幼龄脑瘫大鼠脑白质损伤:按摩通过趋化因子轴调节外泌体的作用。
IF 1.8 4区 医学 Q3 NEUROSCIENCES Pub Date : 2025-10-30 DOI: 10.1016/j.jstrokecerebrovasdis.2025.108481
Chen Yiping MD , Chen Suyu MD , Li Min MD , Li Yongli MD, Zhang Yujing MD, Liu Sihan MD, Xu Chenggui MD, Zhang Tinghui MD, Liao Yong MD, Zhang Ji MD, Zhang Xinghe MD, Tai Xiantao MD
<div><h3>Background</h3><div>Massage is kown to effectively alleviate symptoms of Cerebral Palsy (CP), yet its specific mechanism in CP remains unclear. Cerebral white matter damage is a primary consequence of hypoxia-ischemia (HI) in CP rats. This study aims to explore the potential of massage in facilitating the migration of bone marrow mesenchymal stem cells (BMSCs-Exo) to the brain through the chemokine axis, with the goal of moderating cerebral white matter injury in CP rats.</div></div><div><h3>Method</h3><div>Forty-eight rats were randomized to Sham, Model, Massage, and Inhibition groups. HI injury was induced in 3-day-old rat pups and confirmed through righting reflex assessment and cerebral blood flow imaging. The Massage group received daily massage therapy from postnatal day 5 for 28 days. The Inhibition group was treated with a CXCR4 inhibitor (AMD3100), while the remaining groups were administered saline. Behavioral assessments were conducted at 2 and 4 weeks post-treatment. The homing efficiency of BMSCs-Exo was monitored using small animal live imaging, and cerebral oxygen saturation was measured noninvasively through photoacoustic imaging. Neuronal morphology was evaluated using Nissl staining, and immunofluorescence was employed to co-label oligodendrocytes with CXCR4/SDF-1. SDF-1/CXCR4 expression in bone marrow, serum, and brain white matter was assessed using PCR. In vitro experiments involved co-culturing BMSCs with oligodendrocytes under hypoxic and low glucose conditions. The cell groups included Normal control, DMSO control, Massage, and Massage + GW4869 Group. Viability of BMSCs and oligodendrocytes was determined using CCK-8 assays. Additionally, immunofluorescence staining was performed to visualize exosomes in oligodendrocytes.</div></div><div><h3>Results</h3><div>HI injury prolonged righting reflex latency and decreased cerebral blood flow. Massage intervention was linked to improved blood flow, increased brain homing of BMSCs-Exo, and enhanced limb function, particularly evident after 4 weeks. Histological analysis using Nissl staining and immunofluorescence demonstrated that massage was coincided with reduced neuronal injury and the upregulation of SDF-1/CXCR4 expression in oligodendrocytes. Initially reduced following HI, SDF-1/CXCR4 levels were restored by massage, with the CXCR4 inhibitor significantly abrogating the therapeutic effects of massage. CCK-8 assays indicated that massage was associated with promoted viability of BMSCs and oligodendrocytes, which was attenuated in the presence of exosome inhibition. Furthermore, the uptake capacity of oligodendrocyte cells for exosomes was superior in the Massage group compared to the DMSO control group.</div></div><div><h3>Conclusion</h3><div>Massage is associated with enhanced motor function and white matter restoration in cerebral palsy, potentially through mechanisms involving the SDF-1/CXCR4 axis, increased homing of BMSCs-Exo to the brain, and enhanced oligodendr
背景:按摩可以有效缓解脑瘫(CP)的症状,但其在脑瘫中的具体机制尚不清楚。脑白质损伤是CP大鼠缺氧缺血(HI)的主要后果。本研究旨在探讨按摩促进骨髓间充质干细胞(BMSCs-Exo)通过趋化因子轴向脑迁移的潜力,以减轻CP大鼠脑白质损伤。方法:48只大鼠随机分为假手术组、模型组、按摩组和抑制组。在3日龄大鼠幼鼠中诱导HI损伤,并通过翻正反射评估和脑血流成像证实。按摩组自出生后第5天起每日进行按摩治疗,连续28 d。抑制组给予CXCR4抑制剂(AMD3100),其余组给予生理盐水。治疗后2周和4周分别进行行为评估。采用小动物活体成像监测BMSCs-Exo的归巢效率,采用光声成像无创测量脑氧饱和度。用尼氏染色评价神经元形态,并用免疫荧光与CXCR4/SDF-1共标记少突胶质细胞。采用PCR检测骨髓、血清和脑白质中SDF-1/CXCR4的表达。体外实验包括在缺氧和低糖条件下将骨髓间充质干细胞与少突胶质细胞共培养。细胞组包括正常对照组、DMSO对照组、按摩组、按摩 + GW4869组。用CCK-8测定骨髓间充质干细胞和少突胶质细胞的活力。此外,免疫荧光染色显示少突胶质细胞中的外泌体。结果:HI损伤使翻正反射潜伏期延长,脑血流量减少。按摩干预可以改善血流量,增加BMSCs-Exo的脑归一化,并增强肢体功能,在4周后尤为明显。尼氏染色和免疫荧光组织学分析显示,按摩与神经元损伤减轻和少突胶质细胞中SDF-1/CXCR4表达上调相一致。在HI后最初降低的SDF-1/CXCR4水平通过按摩恢复,CXCR4抑制剂显着消除按摩的治疗效果。CCK-8实验表明,按摩与促进骨髓间充质干细胞和少突胶质细胞的活力有关,在外泌体抑制下,这种活力减弱。此外,与DMSO对照组相比,按摩组少突胶质细胞对外泌体的摄取能力更强。结论:按摩与脑瘫患者运动功能增强和白质恢复有关,可能通过SDF-1/CXCR4轴、增加BMSCs-Exo向大脑的归家以及增强少突胶质细胞附着等机制。
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引用次数: 0
Lower socio-economic status is associated with first-ever stroke incidence: An Australian state-wide record linkage study 较低的社会经济地位与首次中风发病率有关:澳大利亚全州记录联系研究。
IF 1.8 4区 医学 Q3 NEUROSCIENCES Pub Date : 2025-10-28 DOI: 10.1016/j.jstrokecerebrovasdis.2025.108478
Tan V. Bui , Yichao A. Sun , Katherine Chappell , Sabah Rehman , Hoang T. Phan , Helen Castley , Lee Nedkoff , Judith M. Katzenellenbogen , Seana L. Gall

Background

Although socio-economic status (SES) is a recognised risk factor for stroke, few studies have examined stroke incidence by SES in Australia. We investigated the incidence of first-ever stroke by SES using state-wide record linkage data.

Methods

This retrospective cohort study used linked Tasmanian Admitted Patient Care and the Death Registry data. Fatal and non-fatal strokes 2007–2020 were identified using ICD-10 codes (8-year clearance period) to identify first-ever strokes 2015–2020. SES was from Index of Relative Socio-economic Advantage and Disadvantage by quintiles (low, low medium, medium, medium high, high). Covariates included sex, age, and remoteness. Population denominators (2016 Australian population) were used to calculate crude and age-standardised incidence rates. Poisson regression models estimated adjusted incidence rate ratios (IRR) for first-ever stroke by SES group.

Results

We identified 4901 first-ever stroke cases (63% ischaemic stroke, mean [SD] age 75 [14] years, 52% female). Ischaemic heart disease (12% lowest vs 7% highest SES), diabetes (26% lowest vs 18% highest SES), and hypertension (48% lowest vs 39% highest SES) were significantly different by SES. The age-standardised rate was 134/100,000 persons (95% CI 130, 138). Compared to the high SES group, the IRR for first-ever stroke was 1.20 (95% CI 1.09, 1.33) for the low medium SES group and 1.33 (95% CI 1.22, 1.46) for the low SES group, adjusting for age, sex, stroke incident year, and remoteness.

Conclusions

Lower SES groups had a higher incidence of first-ever stroke. Public health and primary care strategies targeting stroke risk factors in these groups may reduce stroke incidence.
背景:虽然社会经济地位(SES)是卒中的一个公认的危险因素,但在澳大利亚很少有研究通过社会经济地位来检查卒中的发病率。我们调查了首次中风的发病率SES使用全国范围内的记录联动数据。方法:这项回顾性队列研究使用了塔斯马尼亚住院病人护理和死亡登记的相关数据。使用ICD-10代码(8年清除期)确定2007-2020年的致命性和非致命性中风,以确定2015-2020年的首次中风。SES为相对社会经济优势和劣势指数,分五位数(低、中低、中、中高、高)。协变量包括性别、年龄和偏远地区。人口分母(2016年澳大利亚人口)用于计算粗发病率和年龄标准化发病率。泊松回归模型估计了SES组首次卒中的调整发病率比(IRR)。结果:我们确定了4901例首次卒中病例(63%为缺血性卒中,平均[SD]年龄75岁,52%为女性)。缺血性心脏病(12%最低SES vs 7%最高SES)、糖尿病(26%最低SES vs 18%最高SES)和高血压(48%最低SES vs 39%最高SES)因SES而有显著差异。年龄标准化率为134/100,000人(95% CI 130,138)。与高经济地位组相比,中低经济地位组首次卒中的IRR为1.20 (95% CI 1.09, 1.33),低经济地位组为1.33 (95% CI 1.22, 1.46),调整了年龄、性别、卒中发生年份和偏远地区。结论:社会经济地位较低的组首次卒中的发生率较高。针对这些人群卒中危险因素的公共卫生和初级保健策略可能会降低卒中发病率。
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引用次数: 0
期刊
Journal of Stroke & Cerebrovascular Diseases
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