Objective To analyze the diagnostic value of wall motion score index (WMSI) and the number of B-line ultrasound in bedside lung for heart failure after acute myocardial infarction (AMI). Methods A total of 42 patients with AMI diagnosed by coronary angiography in the First Affiliated Hospital of Soochow University were enrolled. According to the New York Heart Association (NYHA) cardiac function classification, they were divided into NYHA Ⅱ group (n＝16), NYHA Ⅲ group (n＝15) and NYHA Ⅳ group (n＝11). The number of WMSI and bedside lung ultrasound B lines were measured within 24 hours. Results (1)The number of WMSI and B lines increased with the severity of NYHA cardiac function classification. The analysis of variance showed that there was significant difference between groups (P＜0.001), and there was significant difference between two groups (P＜0.05). (2)WMSI was positively correlated with the number of B lines (r＝0.42, P＜0.01). (3)The number of WMSI and B lines diagnosed under the ROC curve of grade Ⅱ or higher heart failure was 0.811, 0.823. Conclusion The number of WMSI + B lines can improve the diagnostic value of ultrasound measurement of heart failure after AMI.%目的 分析室壁运动评分指数(WMSI)和床旁肺部超声B线数量对急性心肌梗死(AMI)后心力衰竭的诊断价值.方法 选取苏州大学附属第一医院心血管内科经冠状动脉造影确诊为AMI患者42 例,按美国纽约心脏病协会(NYHA)心功能分级分为NYHA Ⅱ级组(n＝16)、NYHA Ⅲ级组(n＝15)和NYHA Ⅳ级组(n＝11),均于24 h内行WMSI和肺部超声B线数量测定.结果 (1)WMSI和B线数量均随NYHA心功能分级的严重程度而增加,组间方差分析差异有统计学意义(P＜0.001),两两比较,各组间差异均有统计学意义(P＜0.05).(2)WMSI与B线数量呈正相关(r＝0.42,P＜0.01).(3)WMSI和B线数量诊断Ⅱ级以上心衰的ROC曲线下面积分别为0.811、0.823.结论 WMSI+B线数量可提高AMI后心衰的超声检测诊断价值.
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