冠脉支架术后ST段改变的临床意义  

The meaning of ST segment depression after intracoronary stent implantion

作　　者：朱继红[1] 王伟民[1] 蒋宝琦[1] 赵红[1] 郭丹杰[1] 

机构地区：[1]北京医科大学人民医院心内科,100044

出　　处：《中国心血管杂志》1997年第1期22-24,共3页Chinese Journal of Cardiovascular Medicine

摘　　要：本研究的目的在于明确平板运动试验对冠脉成形术后再狭窄的评判作用,并阐述运动试验假阳性与心功能之间的关系.我们选择左冠状动脉支架后病人30例,于术后6个月行平板运动试验及冠脉造影术.结果,再狭窄组87.5%(7/8)运动试验阳性,无再狭窄组22.7%(5/22)运动试验阳性,其特异性为58.45,对再狭窄的预测值为70.25,无再狭窄组中运动试验阴性组(17例)EF值运动试验阳性组(5例)明显增高.提示平板运动试验是评价冠脉成形术后再狭窄的一种简单易行的方法,运动试验假阳性与心功能较差有关.To determine the value of Treadmill test for predicting the restenosis and the meaning of ST-Segment depression during exercise test in the absence of restenosis after coronary angioplas-ty. Followup coronary angiography and exercise test were studied in the 30 patients with successful PTCA+ Stent. The results showed (1) the sensitivity of postive exercise test result for predicting restenosis was 87. 5% , the specificity was 58. 4% the positive value was 70. 2%. (2) The exercise-induced ST segment depression in the absence of restenosis was strongly associated with the following-up cardiac ejectioin fraction, the false positive exercise test result was 40% in group A (EF<50%), compared with 8.3% in group B(EF≥50%) P<0. 01. Conclusions: Exercise test is a useful method for predicting the restenosis after Coronary angioplasty, the false positive exercise test results may be due to the poor Cardiac output.

关 键 词：冠脉支架术 ST段改变 再狭窄 平板运动试验 诊断 冠心病 

分 类 号：R654.2[医药卫生—外科学]