VE导联对病理性Q波的诊断价值

The Value of Lead VE in Diagnosis of Pathological Q Wave

目的观察病理性Q波时VE导联的心电图特点，探讨VE导联在病理性Q波中的诊断价值。方法对53例下壁有病理性Q波的患者描记常规同步12导联心电图，并加做VE导联。比较VE导联的心电图特点，分析该导联对病理性Q波的诊断和鉴别诊断价值。结果VE导联在急性下壁心肌梗死中，均出现病理性Q波和ST—T段动态演变；陈旧性下壁心肌梗死32例中26例VE导联出现病理性Q波，ST—T段无动态演变；其他在下壁导联出现病理性Q波的疾病，VE导联呈rS型。结论VE导联心电图有助于病理性Q波的鉴别诊断。

Objective To analyze features of pathological Q wave in lead VE and its clinical significance. Methods A routine 12-lead ECG and a lead VE ECG were recorded and compared in 53 cases with a pathological Q wave in inferior leads. Results All cases with acute inferior myocardial infarction had pathological Q wave and dynamic evolution of ST-T in lead VE. Of 32 cases with old inferior myocardial infarction, 26 cases showed pathological Q wave but without dynamic ST-T change in lead VE. The patients with inferior Q wave due to other causes showed rS wave in lead VE. Conclusion Lead VE ECG may improve the differential diagnosis of pathologial Q wave.