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克利夫兰临床基金会1968～1984年间90584次冠(状动)脉造影资料,经计算机检索,74例冠状大致正常的心肌梗塞患者(第Ⅰ组)。按年龄、性别和导管检查时间配对,随机选择74例至少1支冠脉狭窄>50%的心肌梗塞患者(第Ⅱ组)和148例冠脉正常的胸痛或具有至少1种冠心病危险因素的受检者(第Ⅲ组)作为对照。所有296例受检者均作过左心导管、冠脉造影和左室造影检查。心肌梗塞后作造影检查的时间平均22(1～179)个月。第Ⅰ组16例作麦角新碱激发试验,其中5例冠脉内径缩小>75%为阳性。第Ⅰ组74(男42、女32)例,平均43(19～66)岁。第Ⅰ、Ⅱ组心肌梗塞后平均随访10.5(1.6～32)年,第Ⅰ组和第Ⅱ组导管检查后分别平均随访8.6年和9.4年。第Ⅲ组未随访,生存率按同类资
Cleveland Clinic Foundation from 1968 to 1984, 90584 times the crown (palpable) pulse angiography data, computerized, 74 cases of coronary heart disease in patients with normal (group Ⅰ). 74 patients with at least 1 myocardial infarction with coronary stenosis> 50% (group II) and 148 patients with normal coronary artery chest pain or with at least 1 risk of coronary heart disease were randomized by age, sex, and catheterization time Subjects (group Ⅲ) served as controls. All 296 subjects underwent left ventricular catheterization, coronary angiography, and left ventriculography. Angiography after myocardial infarction for an average of 22 (1 ~ 179) months. 16 cases of group Ⅰ were used for ergometrine challenge test. Among them, 5 cases whose coronary diameter was reduced> 75% were positive. Group Ⅰ 74 (42 men and 32 women), with an average of 43 (19 ~ 66) years old. The mean duration of follow-up after myocardial infarction was 10.5 (1.6-32) years in group I and group II, mean follow-up was 8.6 years and 9.4 years respectively in group I and group II after catheterization. Group Ⅲ did not follow-up, survival rate by the same type of funding