心音图在心绞痛患者中的临床诊断价值

Clinical diagnostic value of acoustic cardiography in patients with angina pectoris

摘要:

目的 探究现代心音图技术的相关参数在诊断心绞痛患者中的临床应用价值。方法 选取心内科因心绞痛入院且行冠状动脉造影的患者共150例。所有患者均进行常规心电图及心音心电图检查。结果 150例心绞痛患者中有81例经冠脉造影诊断为冠心病，69例经冠脉造影排除冠心病；第四心音（fourth heart sound，S4）、心电图ST-T改变在2组间的差异具有统计学意义（P<0.05）；心电图ST-T改变诊断心绞痛的敏感度及特异度分别为54.3%及84.1%，而S4诊断心绞痛的敏感度及特异度分别为74.1%及82.6%。当ST-T改变与S4联合诊断心绞痛时，其敏感度及特异度分别为87.7%与81.2%。结论 S4与ST-T改变联合可提高心绞痛患者的诊断水平，可作为心绞痛患者诊断与评估的重要辅助指标。

Abstract:

Objective To investigate the clinical application value of related parameters of modern acoustic cardiography techniques in the diagnosis of patients with angina pectoris.Methods A total of 150 patients who were admitted due to angina pectoris and underwent coronary angiography were enrolled， and all patients underwent routine electrocardiography and acoustic cardiography.Results Among the 150 patients with angina pectoris， 81 had a confirmed diagnosis of coronary artery disease by coronary angiography， and coronary artery disease was excluded in 69 patients after coronary angiography. There were significant differences between the two groups in S4 and ST-T changes on electrocardiography（P<0.05）； ST-T changes on electrocardiography had a sensitivity of 54.3% and a specificity of 84.1% in the diagnosis of angina pectoris，while S4 had a sensitivity of 74.1% and a specificity of 82.6%. ST-T changes combined with S4 had a sensitivity of 87.7% and a specificity of 81.2% in the diagnosis of angina pectoris.Conclusion S4 combined with ST-T changes can improve the diagnostic level of patients with angina pectoris， and therefore， they can be used as important auxiliary indices for the diagnosis and evaluation of patients with angina pectoris.