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J Stroke Cerebrovasc Dis:卒中前患者躯体状态等可预测卒中后肺炎

2015-09-10 phylis 译 MedSci原创

背景和目的:最近用卒中前患者躯体状态,性别,年龄,美国国立卫生研究院脑卒中量表(NHISS)(ISAN)分数预测卒中后最常见的并发症卒中相关肺炎(SAP)。这篇研究的目的是评估ISAN分数预测肺炎发生的外部效度。方法:收集雅典卒中登记记录中1992年6月到2011年12月间的数据进行分析。纳入标准包括:ISAN分数各变量值(卒中前患者躯体状态,性别,年龄,NHISS)有效。计算ISAN分数:卒中前

背景和目的:这是一项用卒中前患者躯体状态、性别、年龄、美国国立卫生研究院脑卒中量表(NHISS)(ISAN)分数预测卒中后最常见的并发症卒中相关肺炎(SAP)的研究。这篇研究的目的是评估ISAN分数预测肺炎发生的外部效度。

方法:研究人员收集了雅典卒中登记记录的1992年6月到2011年12月间的数据进行分析。被纳入标准的包括:ISAN分数各变量值(卒中前患者躯体状态、性别、年龄、NHISS)有效。计算ISAN分数:卒中前独立性(mRS=0-1分记1分,mRS=2-5分记2分),性别(男性记1分,女性记2分),年龄(小于60记0分,60-69记3分,70-79记4分,80-89记6分,大于等于90岁记8分),NIHSS(0-4分记0分,5-15分记4分,16-20分记8分,大于等于21分记10分)。将患者进行分层:肺炎发生低风险(ISAN分数0-5分),中度风险(6-10分),高风险(11-14分),极高风险(大于等于15分)。应用ROC曲线和线性回归分析ISAN分数的区分度,并且评估研究人群中真实发生肺炎和预测肺炎发生之间的相关性。对急性缺血性卒中的患者(AIS)和脑内出血(ICH)患者进行分别分析。

结果:共有患者3204名(AIS:2732名,ICH:472名)。在AIS患者中,ISAN分数有着较好的区分度(曲线下面积AUC:0.83 95%CI: 0.81-0.85)。在ICH患者组中,ISAN分数区分度较差(AUC:0.69 95%CI: 0.63-0.74)。ISAN分数高危组与患者SAP相对风险增加;AIS组患者危险因素增加更为显著。预测肺炎发生与真实发生肺炎存在较好相关性(AIS组:R2 = 0.885,β系数 = 0.941; ICH 组: R2 = 0.880, β系数 = 0.938)。

结论:
在雅典卒中登记的ISAN分数预测效度研究中,ISAN分数能准确预测AIS患者SAP的发生,在ICH患者中存在较好的区分度。临床应用的进一步验证和评估增强ISAN分数的实用性。

原文出处:

Papavasileiou V, Milionis H, Smith CJ,et al. External Validation of the Prestroke Independence, Sex, Age, National Institutes of Health Stroke Scale (ISAN) Score for Predicting Stroke-Associated Pneumonia in the Athens Stroke Registry. J Stroke Cerebrovasc Dis. 2015 Sep 4.


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