【摘要】 对78例心肌梗塞（MI）后残余心肌缺血（RI）患者中38例行经皮腔内冠状动脉成形术（PTCA），另40例作为对照组。术前两组间性别、年龄、心功能、运动试验等指标无差异。PTCA组行PTCA后冠状动脉狭窄由（87．7±15）％降至（18．6±8．7）％（P＜0.001），运动试验及动态心电图各项指标显著改善。随访10±2个月，发现心绞痛、再梗塞、猝死发生率明显低于对照组，提示MI后存在RI者行PTCA可显著改善其预后。更多还原

【Abstract】 Seventy eight patients with residual ischemia after a first myocardial infarction came into this study, 38 of them underwent percutaneous transluminal coronary anginplasty (PTCA) (Group 1 ) and others as control (Group Ⅱ). No difference was found between the two groups in gender, age, and the left ventricular function; the results of submaximum exercise testing (ET) and ambulatory electrocardiography (AECG) were also similar (P>0.05). In Group Ⅰ, the severity of coronary artery stenosis decreased from (87. 7±15 ) % to (18. 6 ± 8, 7 ) % (P <0.01),the exercise capacity, duration, maximum heart rate and HR×SBP in ET improved (P <0.001),the episodes of ischemia and the duration detected by AECC relieved (P<0.01). During a follow-up for 10±2 months, there were a significant lower frequency of cardiac events (1: 9, P<0.01), a lower of angina pectoris (4: 29, P<0.001) ,a lower of ventricular arrhythmias (3: 18,P<0.01) and a relative better left ventricular function (1.1±0. 3: 1. 7±0. 5, P<0.001) in Group 1. The results showed that successful PTCA could improve the prognosis of patients with residual ischemia.更多还原