在运动平板试验前、后QT离散度测定的意义

CHINESE JOURNAL OF CARDIOVASCULAR REHABILITATION MEDICINE(2001)

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Abstract
目的:探讨冠心病患者运动平板试验前、后QT离散度(QTd)和校正QTd(QTcd)测定的意义。方法:分析阳性组44例,阴性组51例在运动试验前、中QTd、QTcd的变化。结果:运动阳性组(冠心病组)6、9分钟的QTd(34.20±12.73ms、34.51±11.29ms)和QTcd(46.10±11.92ms、50.60±13.70ms)比阴性组QTd(24.01±7.52ms、20.90±7.21ms)和QTcd(31.00±10.81ms、31.80±11.31ms)显著延长(P<0.05,0.01),且比运动前QTd(24.09±9.61ms)和QTcd(27.68±11.21ms)显著延长(P<0.05,0.01);而阴性组运动前、后差异无显著性。结论:QTd、QTcd可作为运动平板试验诊断冠心病心肌缺血的2项敏感而有价值的指标。
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