牛津郡社区卒中项目分型与急性缺血性卒中患者卒中严重程度和转归的相关性

目的 探讨牛津郡社区卒中项目(Oxfordshire Community Stroke Project, OCSP)分型与急性缺血性卒中严重程度和转归的相关性.方法 前瞻性纳入急性缺血性卒中住院患者,按照OCSP分型分为完全前循环梗死(total anterior circulation infarct, TACI)、部分前循环梗死(partial anterior circulation infarct, PACI)、后循环梗死(posterior circulation infarct, POCI)和腔隙性梗死(lacunar infarction, LACI).记录患者的人口统计学和基线临床资料.应用美国国立卫生研究院卒中量表(National Institute of Health Stroke Scale, NIHSS)评价卒中严重程度,≤8分为轻度卒中,>8分为中重度卒中.以发病后90 d改良Rankin评分(modified Rankin Scale, mRS)评价临床转归,转归良好定义为mRS评分0~2分,转归不良定义为mRS评分3~5分、死亡或发生心血管事件.采用多变量logistic回归分析确定OCSP分型与卒中严重程度和转归的独立相关性.结果 共纳入765例急性缺血性卒中患者,TACI型46例(6.0%),PACI型281例(36.7%),POCI型229例(29.9%),LACI型209例(27.3%);轻度卒中580例(75.8%),中重度卒中185例(24.2%);失访17例,513例(68.6%)转归良好,235例(31.4%)转归不良.各OCSP分型基线NIHSS评分和转归差异均有统计学意义(P均<0.05),其中TACI型基线NIHSS评分最高,转归最差,转归不良的患者比例高达89.1%;LACI型组基线NIHSS评分最低,转归相对较好,转归不良的患者比例为8.9%;PACI型基线NIHSS评分与POCI型存在显著性差异(P<0.05),但转归不良的患者比例则不然.多变量logistic回归分析显示,TACI是中重度卒中(优势比84.881,95%可信区间20.307~354.792;P<0.001)和转归不良(优势比21.472,95%可信区间8.362~55.136;P<0.001)的独立危险因素.结论 OCSP分型与急性缺血性卒中严重程度和转归独立相关.

Associations of the Oxfordshire Community Stroke Project subtypes with severity and outcomes of acute ischemic stroke

ObjectiveTo investigate the associations of the Oxfordshire Community Stroke Project (OCSP) subtypes with severity and outcomes of acute ischemic stroke.MethodsThe inpatients with acute ischemic stroke were enrolled prospectively and divided into total anterior circulation infarct (TACI), partial anterior circulation infarct (PACI), posterior circulation infarct (POCI), and lacunar infarction (LACI) according to the OCSP classification.Demographic and baseline clinical data of the patients were recorded.The National Institutes of Health Stroke Scale (NIHSS) was used to assess stroke severity, ≤8 was mild stroke and >8 was moderate to severe stroke.The clinical outcome was assessed at 90 d after onset with the modified Rankin Scale (mRS), and the favorable outcome was defined as mRS score 0-2, and the unfavorable one was defined as mRS score 3-5, death or cardiovascular event.Multivariate logistic regression analysis was used to determine the independent associations of the OCSP subtypes and stroke severity and outcomes.ResultsA total of 765 patients with acute ischemic stroke were enrolled, including 46 (6.0%) with TACI, 281 with PACI (36.7%), 229 (29.9%) with POCI, and 209 (27.3%) with LACI.There were 580 patients (75.8%) with mild stroke, and 185 (24.2%) with moderate to severe stroke;17 were lost to follow-up, 513 (68.6%) had favorable outcomes, and 235 (31.4%) had unfavorable outcomes.There were significant differences between the baseline NIHSS scores and outcomes in each OCSP subtypes (all P<0.05), in which the baseline NIHSS score in TACI was the highest, the outcome was worst, and the proportion of patients with unfavorable outcome was 89.1%;there was significant difference in the baseline NIHSS scores between the PACI and the POCI (P<0.05), however, the proportion of patients with unfavorable outcome was not the case.Multivariate logistic regression analysis showed that TACI was an independent risk factor for moderate to severe stroke (odds ratio 84.881, 95% confidence interval 20.307-354.792;P<0.001) and unfavorable outcome (odds ratio 21.472, 95% confidence interval 8.362-55.136;P<0.001).Conclusion The OCSP subtypes were independently associated with the severity and outcomes of acute ischemic stroke.