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据《American Heart Journal》1994年127卷第1期报道 作者对110例慢性冠状动脉闭塞患者行经皮腔内冠状动脉成形术(PTCA),其中69例获得成功。首次PTCA术是否成功与冠状动脉病变的程度、堵塞部位邻近表面形态学以及临床堵塞持续时间有关。首次PTCA术成功的患者中,62例再次血管造影证实,有34例(55％)再次出现狭窄,其中11例为完全性闭塞。30例再次行PTCA术,80％获得成功。所有第二次PTCA术成功的患者血管造影随访证实,有7例又一次出现狭窄。在该项研究中,111根动脉完全闭塞,其中28根血管一次行PTCA术获得成功,另有17例在第二次PTCA术后血管造影随访时没有发现再次狭窄。
According to the American Heart Journal, Vol. 127, No. 1, 1994, Percutaneous Transluminal Coronary Angioplasty (PTCA) was performed in 110 patients with chronic coronary artery occlusion, of which 69 were successful. The success of the first PTCA was related to the extent of coronary artery disease, the adjacent surface morphology at the site of occlusion, and the duration of clinical blockage. Of the patients who had first successful PTCA surgery, 62 angiography confirmed that 34 (55%) had another stenosis and 11 had complete occlusion. Thirty patients underwent PTCA again and 80% were successful. Follow-up of angiography in all patients undergoing second PTCA confirmed stenosis again in 7 patients. In the study, 111 arteries were completely occluded, 28 of them were successfully treated with PTCA at one visit, and another 17 had no restenosis after angiographic follow-up at the second PTCA.