经皮冠状动脉腔内成形术

PRELIMINARY REPORT ON PERCUTANEOUS TRANSLUMINAL CORONARY ANGIOPLASTY IN 13 CASES

本文报告我院13例次PTCA的初步结果(单支病变11例次,多支病变2例次),其中100％闭塞2例次,血管分叉部位病变2例次,一例采用了双球囊技术;9例次(69.2％)患者12处(75.0％)病变PTCA获得成功。一例合并严重冠状动脉痉挛导致急性心内膜下心肌梗塞。

Percutaneous transluminal coronary angioplasty (PTCA) was performed in 13 cases from December, 1986 to May, 1988. All patients had angina peetoris, including 6 cases of unstable angina and 6 cases with old myocardial infarction. The mean duration of angina was 1.7 years with a range of 1 month to 8 years. There were 11 cases of single vessel disease, including 6 of LAD lesions, 3 of LCX and 3 of RCA, and 2 cases of multivessel disease, including one double vessel disease with 4 lesions and one triple vessel disease. Among them there were 2 cases of total occlusion of LAD and 2 cases of LAD lesions with the origin of diagonal branch involved. Double balloon technique was applied to a patient with a big diagonal branch originated just from the margin of the LAD lesion to be dilated.Nine (69.2%) of 13 cases and 12 (75.0％) of 16 lesions attempted to dilate were successfully peformed. Before the procedure the mean percentage of stenosis was 82.9±10.5% (M±SD), which was reduced to 17.9±21.3％ following successful dilatation. In 2 cases of total occlusion and one caseof functional total occlusion PTCA failed because the guide wire was unable to pass through the occlusion. In one case severe coronary spasm and acute occlusion occurred during dilatation and acute subendocardial myocardial infarction developed following the procedure. There was no death or cmergeney coronary artery bypass grafting surgery in this group. In 3(33.3%)of 9 cases with succasful dilatation symptoms recurred 1 to 2 months Jollowing the procedure, in one case coronary angiography was performed and restenosis was confirmed.