冠脉再狭窄是经皮冠脉腔内成形术成功后的一种常见现象,许多患者表现为心绞痛复发,然后另一些患者却无症状。为评价无症状的冠脉再狭窄的临床意义,本文分析了1985年3月至1990年11月间连续1030例球囊成形术患者,其中成功者927例(90％),839例患者术后6～9个月或者因再发心绞痛而较早冠脉造影复查(随访率90.5％)。277例(33％)患者冠脉再狭窄(管腔狭窄>50％),分为两组:A组133例(占 Coronary restenosis is a common phenomenon after successful percutaneous transluminal coronary angioplasty. Many patients show recurrent angina and then others are asymptomatic. To evaluate the clinical significance of asymptomatic coronary artery stenosis, 1030 consecutive patients undergoing balloon angioplasty between March 1985 and November 1990 were analyzed, of whom 927 (90%) were successful and 839 Coronary angiography was performed 6 to 9 months or earlier due to recurrent angina (follow-up rate 90.5%). Coronary restenosis (luminal stenosis> 50%) was performed in 277 patients (33%) and divided into two groups: 133 in group A