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目的探讨STAF评分对急性脑梗死患者合并心房颤动(AF)的筛查价值。方法 225例临床诊断为急性脑梗死并完成STAF评分患者,收集患者人口学信息、入院后首次美国国立卫生研究院卒中量表(NIHSS)评分、常规心电图(ECG)、心脏彩超、24 h动态心电图组合、头颈部血管评估等检查结果。对所有患者进行STAF评分,绘制受试者工作特征(ROC)曲线,确定STAF诊断AF的最佳界值,计算其灵敏度与特异度,分析其诊断价值。结果 225例患者中男143例,女82例,年龄37~90岁,平均年龄(65.0±9.5)岁。STAF评分诊断AF的ROC曲线下面积为0.912,以STAF评分≥5分作为最佳截断点,此时灵敏度为92.68%,特异度为86.41%,阳性预测值为60.31%,阴性预测值为99.22%,假阴性率7.32%,假阳性率13.59%,阳性似然比6.82,阴性似然比0.08,约登指数为0.79。结论 STAF评分对急性缺血性卒中患者合并AF具有较好的筛查价值。
Objective To investigate the screening value of STAF score in patients with acute cerebral infarction complicated with atrial fibrillation (AF). Methods Totally 225 patients with acute cerebral infarction and STAF score were enrolled in this study. Demographic information was collected. The NIHSS score, routine electrocardiogram (ECG), echocardiography, 24-hour ambulatory electrocardiogram Combination, head and neck vascular assessment and other test results. The STAF scores of all the patients were obtained. The receiver operating characteristic (ROC) curve was drawn. The best value of STAF in diagnosing AF was determined. The sensitivity and specificity of STAF were calculated, and its diagnostic value was analyzed. Results Among the 225 patients, 143 were males and 82 were females, ranging in age from 37 to 90 years (mean age, 65.0 ± 9.5 years). The area under the ROC curve of STAF score was 0.912 and STAF score≥5 was the best cutoff point, the sensitivity was 92.68%, the specificity was 86.41%, the positive predictive value was 60.31%, the negative predictive value was 99.22% , False negative rate 7.32%, false positive rate 13.59%, positive likelihood ratio 6.82, negative likelihood ratio 0.08, Youden index 0.79. Conclusion The STAF score has a good screening value for patients with acute ischemic stroke complicated with AF.