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作者研究造影示仅左前降支近端有明显狭窄(>50％)且在40岁以前发生的Q波型急性前壁心梗之存活者,分析残留狭窄和侧支血供的预后价值。急性心梗后3周～1年(中位数3个月)作冠脉造影。在平均35(23～39)岁的102例,33例(32％)梗塞区供血冠脉残留狭窄50～74％,43例(42％)残留狭窄75～99％,26例(25％)完全闭塞。造影示52例(51％)的梗塞区供血冠脉有侧支血管:4例侧支血管显影模糊(1分),17例侧支血管显影中等(2～4分),31例侧支血管显影良好(>4分)。侧支血管的存在率与梗塞区供血冠脉的狭窄程度
The authors studied the prognostic value of remnant stenosis and collateral blood supply in patients with Q-wave acute anterior myocardial infarction who had only significant stenosis (> 50%) proximal to the left anterior descending coronary artery and who developed Q-wave before 40 years of age. Acute myocardial infarction after 3 weeks to 1 year (median 3 months) for coronary angiography. Of the 102 patients with an average of 35 (23-39) years old, 33 (32%) had a coronary artery residual stenosis of 50-74%, 43 (42%) had a residual stenosis of 75-99% and 26 (25% Completely occluded. Angiography showed that in 52 cases (51%) of the infarcted area, the coronary arteries had collateral blood vessels: 4 cases of collateral vessels developed fuzzy (1 point), 17 cases of collateral vessels developed medium (2-4 points) and 31 cases of collateral vessels Developed well (> 4 points). The presence of collateral vessels and the degree of coronary artery stenosis in the infarct area