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冠脉粥样斑块切除术和冠脉腔内支承术(endoluminal stenting)能有效地减轻冠脉狭窄的程度,但这二种方法与惯用的球囊成形术尚未直接进行比较。为了比较这三种手术的即时效果,18例接受冠脉粥样斑块切除术,21例接受冠脉腔内支承术,造影观察残余狭窄的形态并定量评价其程度。两组病人分别与接受冠脉成形术的病人配对比较,配对病人选自电子计算机化大型资料库。配对变量包括:病人的年龄和性别,病变的部位和程度,病变的复杂性。同球囊成形术相比,冠脉粥样斑块切除术和冠脉腔内支承术减轻冠状
Coronary atheroma plaque removal and endoluminal stenting can effectively reduce the degree of coronary artery stenosis, but these two methods have not been directly compared with conventional balloon angioplasty. In order to compare the immediate effects of these three procedures, 18 patients underwent coronary atherosclerotic plaque resection and 21 underwent coronary endovascular surgery. The residual stenosis was observed by angiography and the extent of residual stenosis was assessed. Two groups of patients were compared with those who underwent coronary angioplasty, and the matched patients were selected from large computerized databases. Paired variables include: the patient’s age and gender, the location and extent of the lesion, and the complexity of the lesion. Compared with balloon angioplasty, coronary atherectomy and coronary artery ligation relieve coronary