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住院的心肌梗塞患者约有9%在出院后3个月内死亡,有左心功能不全者其实际死亡率可能更高。多数死亡突然发生,可能因心律失常所致。给予预防性抗心律失常药物治疗的效果未能肯定。本文通过双盲法试验观察慢心律对心肌梗塞后最初3个月内出现的心律失常的疗效。作者选择344例心肌梗塞后的高度危险患者作研究对象,所谓高度危险患者必须具备下列条件之一:①梗塞后的第2或第3天 ST 段恒定升高(下壁梗塞超过2mm,前壁梗塞超过了3mm);
Approximately 9% of hospitalized patients with myocardial infarction die within 3 months of discharge, and those with left ventricular insufficiency may have a higher actual mortality rate. The sudden death of most may be due to arrhythmia. The effect of prophylactic antiarrhythmic drug therapy is not confirmed. In this paper, the efficacy of slow heartbeat on arrhythmia in the first 3 months after myocardial infarction was observed by double-blind test. The authors selected 344 patients with high-risk patients after myocardial infarction as the study object, the so-called high-risk patients must meet one of the following conditions: ① 2 or 3 days after infarction ST segment constant increase (lower wall infarction more than 2mm, the anterior wall Infarct exceeded 3mm);