本文探讨下壁心肌梗塞时围梗塞期传导阻滞的存在与心室晚电位的关系。方法用标准12导联心电图和信息叠加心电图(SAECG)对70例(年龄25～77岁)经临床和心电图证实有 Q 波的下壁心肌梗塞进行分析。全部病例都至少有2个下壁导联Q 波超过30ms,不包括有束支和室内传导阻滞及其它梗塞区导联有诊断性 Q 波。将病人分为围梗塞期传导阻滞组(PERI,23例),无围梗塞期传导阻滞组(NoPERI,47例)。 This article explored the relationship between the presence of block infarction and the late ventricular potential in patients with inferior myocardial infarction. Methods Seventy patients (aged 25-77 years) with clinically and electrocardiographically confirmed Q wave inferior wall myocardial infarction were analyzed using standard 12-lead electrocardiography and SAECG. All cases had at least 2 inferior leads with a Q wave of more than 30 ms, not including bundle branch and indwelling block, and other infarct leads with diagnostic Q waves. Patients were divided into peri-infarct block (PERI, 23 cases) and no infarct block (NoPERI, 47 cases).