JAMA Neurol:小血管病存在与颅内动脉狭窄患者卒中发生风险增加无关

2015-12-29 phylis 译 MedSci原创

重要性:颅内动脉狭窄(ICAS)和小血管病(SVD)可以共存。有关于ICAS 与SVD共存的危险因素,及SVD对正在接受药物治疗的ICAS患者卒中再发的影响的研究较少。目标:调查SVD的危险因素以及SVD对ICAS患者卒中再发的影响。设计,设置和参与者:SAMMPRIS研究是一项前瞻性,多中心的临床试验,对其进行post-hoc分析。在451名受试者中,313(69.4%)名基线脑MRI显示SVD

重要性:颅内动脉狭窄(ICAS)和小血管病(SVD)可以共存。有关于ICAS与SVD共存的危险因素,及SVD对正在接受药物治疗的ICAS患者卒中再发的影响的研究较少。

目标:调查SVD的危险因素以及SVD对ICAS患者卒中再发的影响。

设计,设置和参与者:SAMMPRIS研究是一项前瞻性、多中心的临床试验,对其进行post-hoc分析。在451名受试者中,313(69.4%)名基线脑MRI显示SVD:陈旧性腔隙性脑梗死,Fazekas量表2-3级(白质高信号)或微出血。从2008年11月25日开始招募患者,2013年4月30结束随访。当前研究的数据分析从2014年5月13日到2015年7月29日。

主要成果和措施:应用比例风险回归模型确定有无SVD患者的危险因素,缺血性卒中和动脉狭窄区域的卒中患者SVD和其他基线危险因素的相关性。

结果:313名患者中,基线MRI显示155人(49.5%)存在SVD。SVD患者显著升高的变量为,年龄为63.5岁(10.5岁),收缩压为149 (22) mmHg,血糖水平130 (50) mg/dL,Montreal认知评估分数较低(中位数≥24,IQR:20-26)。其他显著变量是:糖尿病(88 /155 [56.8%]),冠心病(46 [29.7%]),评估前发生卒中(59 [38.1%]),颅内狭窄区域旧梗死灶(88 [56.8%])在评估时接受抗血栓治疗(109 [70.3%])的患者人数。SVD和任何类型的缺血性卒中的相关性是显著的(18 [ 23.7% ])。双变量分析中,SVD与多变量的风险增加无关(HR: 1.7 , 95% CI: 0.8-3.8)。在双变量或多变量分析中,SVD与相关区域卒中风险的增加无关。

结论与相关性:虽然在ICAS患者中,SVD较为常见。基线MRI显示SVD的存在与ICAS患者发生卒中风险增加不相关。

原文出处:

Kwon HM, Lynn MJ, et al. Frequency, Risk Factors, and Outcome of Coexistent Small Vessel Disease and Intracranial Arterial Stenosis: Results From the Stenting and Aggressive Medical Management for Preventing Recurrent Stroke in Intracranial Stenosis (SAMMPRIS) Trial. JAMA Neurol. 2015 Nov 30.


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    2016-10-14 yinhl1978
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