作者报道1444例随机分在安慰剂组的初发心肌梗塞(MI)患者心电图ST段暂时性或持续性压低的预后意义。 对象与方法 初发MI患者2877例,诊断符合BHAT的MI标准,剔除完全性左束支传导阻滞和预激综合征患者。试验采用多中心、随机、双盲、安慰剂对照的方式。普萘洛尔组1433例,安慰剂组1444例。按入院后或随机分组时(9.7±3天)有无ST段压低再 The authors report the prognostic significance of temporary or sustained depression of the ST segment of ECG in 1444 patients randomized to placebo for first-episode myocardial infarction (MI). Subjects and Methods A total of 2877 newly diagnosed MI patients were diagnosed according to the BHAT standard of MI, excluding patients with complete left bundle branch block and pre-excitation syndrome. The trial used a multicenter, randomized, double-blind, placebo-controlled approach. 1433 cases of propranolol group and 1444 cases of placebo group. After admission or randomized (9.7 ± 3 days) with or without ST-segment depression and then