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关于人类冠脉侧支血管的作用存在争论。反复发作心肌缺血能否导致左室功能的进行性损害?作者采用放射性核素法评估冠脉闭塞数年而无心梗的病人心肌缺血和左室功能的演变。方法 1983年1月到1987年12月间7871例病人进行心导管检查。其中24例病人因心绞痛(但无心梗)而作心导管检查,证实仅有左前降支完全闭塞,并有侧支血管形
The role of human coronary collateral vessels is controversial. Can recurrent myocardial ischemia lead to progressive impairment of left ventricular function? The authors used radionuclide to assess myocardial ischemia and changes in left ventricular function in patients with coronary artery occlusion for years without myocardial infarction. Methods From January 1983 to December 1987, 7871 patients underwent cardiac catheterization. Of the 24 patients who underwent cardiac catheterization for angina (but not myocardial infarction), it was confirmed that only the left anterior descending branch was completely occluded with collateral vessels