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1982年1月至1984年7月间美国Hines VA医院和Loyola大学医学中心为133例患者施行PTCA获得成功。PTCA后平均7(1～20)个月,平均年龄56(32～72)岁的39(男38、女1)例患者再次施行冠(状动)脉造影。其中35例由于心绞痛复发或心肌梗塞而复查,另4例并无症状作为随访。PTCA的部位:左前降支23例,回旋支4例和右冠脉13例;包括双支11例。再次造影,结果如下。19例(49％)PTCA治疗处再次狭窄(PTCA增大的内径减少>50％)。20例(51％)患者27处非PTCA治疗处出现新的狭窄和或原有狭窄明显加重:15例患者19处出现新的狭窄(PTCA前正常的冠脉至复查时狭窄>20％),7例
Between January 1982 and July 1984, 133 patients were successfully treated with PTCA at Hines VA Hospital and Loyola University Medical Center in the United States. A mean of 7 (1 to 20) months after PTCA and 39 (38 male and 1 female) patients with a mean age of 56 (32 to 72) years were reimplanted with coronary angiography. Among them, 35 cases were recurred due to angina pectoris or myocardial infarction, and the other 4 cases were asymptomatic as follow-up. PTCA site: left anterior descending artery in 23 cases, 4 cases of supination and right coronary artery in 13 cases; including double-support in 11 cases. Again angiography, the results are as follows. Twenty-nine (49%) PTCA treated sites were restenosed (> 50% increase in PTCA diameter). New stenosis and / or significant stenosis were observed in 27 non-PTCA treated patients in 20 patients (51%): new stenosis (pre-PTCA to 20% of stenosis at PTCA) occurred in 19 of 15 patients, 7 cases