次极量活动平板运动试验QTc离散度与心律失常的关系

Relation between QTc dispersion determination and arrythmia on submaximal treadmill exercise test

目的 :探讨在次极量活动平板运动试验中 QTc离散度与心律失常的关系。方法 :观察 174例患者活动平板运动试验后有无心肌缺血性心律失常并测量 QTc离散度。结果 :次极量活动平板运动试验阳性者 70例 ,其 QTc离散度明显增大 ,而且 70 %出现心律失常。而阴性组 Q- T离散度不增大 ,仅 2例出现房早。结论

Objective:To investigate the relation between QTc dispersion and arrythmia on submaxial treadmill exercise test.Methods:174 patients were investigated in which the QTc dispersion and arrythmia were determined atter submaximal treedmill test.Results:The QTc dispersion increased dramatically and there were arrythmia in 70% patients when exercise test was positive.Conclusion:QTc dispersion can be served as a paremeter for prognosticating arrythmia on submaximal tredmill exercise test Author′s address Dep.of ECG and Heart Function,No1 Hospital of Auhui Medical university,Hefei,230022