【摘要】 对有重复冠脉造影和心电图运动试验复查的41例经皮腔内冠状动脉成形(PTCA)术后患者进行回顾性分析,探讨心电图运动试验对判断再狭窄的意义.结果显示:PTCA术后无再狭窄组患者心电图运动试验各参数比术前明显改善,比再狭窄组亦有明显改善;运动试验阳性对PTCA术后再狭窄预测的敏感性为79.2%,特异性为58.8%,阳性预测值为73.4%;41例患者PTCA术后临床心绞痛症状的发生率为75.6%(其中再狭窄组占70.9%,无再狭窄组占29.1%).结果提示:心电图运动试验是评价PTCA术后疗效及预测PTCA术后有无再狭窄的有效的简单易行的方法之一.更多还原

【Abstract】 To determine the value of eletrocardiogram exercise test for predicting the restenosis after elective PTCA, follow-up angiography and exercise test were studied in 41 patients with successful PTCA. The results showed: (1) Exercise test indices (including: a positive treadmill test result, exercise-induced angina, more ST-segment deviation during exercise, maximal exercise heart rate, exercise time, maximal myocardial oxygen-consume) of patients without restenosis were significantly improved after PTCA than those before PTCA, in addtion, exercise test indices were significantly improved in patients without restenosis than those in patients with restenosis. (2)The sensitivity of positive exercise test result for predicting restenosis was 79.2%, whereas the specificity was 58. 8%. The positive predictive value was 72. 4%. (3) The rate of clinical anginal symptoms in patients with restenosis is significantly higher than that in patients without restenosis at the time of follow-up. The results suggest that electrocardiogram exercise test is relatively a simple and effective method for predicting restenosis after PTCA.更多还原