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目的：研究PTCA及血管支架安装治疗急性心肌梗死的时机选择与心脏功能关系。方法：本组78例，分为两组。A组为6h以内急诊，直接行PTCA血管支架安装的病人29例，男：女为23：6，平均年龄51．6±12．7岁。B组为49例，男：女为38：11，年龄52．3±11．5岁。急性期静脉溶栓（6h内）后于24～72h补救PTCA及血管支架安装的病人。结果：术后1周、4周做超声心动图检查，其左室射血分数（LVEF）情况A组VSB组：第1周0．52±0．07VS0．51±0．07（P＞0．05），第4周0.58±0.08VS0．52±0．06（P＜0．05）。结论：急性心肌梗死病人在发病6h内行PTCA及支架安装能及时地使血运重建，达到改善心脏功能的作用。
Objective: To study the timing of PTCA and stent placement in the treatment of acute myocardial infarction and its relationship with cardiac function. Methods: This group of 78 cases, divided into two groups. The patients in group A were emergency patients within 6 hours, and 29 patients were directly mounted with PTCA stent. The average age was 51.6 ± 12.7 years in men and women, 23: 6. Group B, 49 cases, male: female 38:11, age 52.3 ± 11.5 years. Acute intravenous thrombolysis (6h) after 24 ~ 72h remedy PTCA and stent-mounted patients. Results: Echocardiography was performed at 1 week and 4 weeks after operation. The left ventricular ejection fraction (LVEF) in group A VSB group: 0.52 ± 0.07 vs 0.51 ± 0.07 in the first week (P> 0 .05), the fourth week 0.58 ± 0.08VS0.52 ± 0.06 (P <0.05). Conclusion: PTCA and stenting can be performed in 6 h after onset of acute myocardial infarction. The revascularization can be done in time to improve cardiac function.