【摘要】 目的 探讨冠心病患者平板运动试验后Q-Tc离散度(Q-Tcd)改变的临床意义。方法 应用平板运动试验观察72例冠心病患者及80例正常人运动前后Q-Tcd的变化。结果 运动前Q-Tcd冠心病组为21.81±9.51。运动后冠心病组2min、4min、6min时Q-Tcd分别为52.55±29.30、54.16±17.79、52.38±16.63与运动前相比显著增大有极显著性意义(P<0.001)。结论 提示运动诱发的心肌缺血可使Q-Tcd增大,是辅助诊断冠心病的一项重要指标。更多还原

【Abstract】 Objective To study the clinical significance of Q-Tcd changes after Exercise Treadmill Test(ETT) in patients with Coronary Artery Disease (CAD). Methods To observe the changes of Q-Tcd in 72 patients with coronary artery dis-ease(CAD) and in 80 healthy subjects before and after Exercise Treadmill Test. Results Before ETT,the Q-Tcd was 21. 81 ± 9. 51 in CAD. After ETT,in 2 min,4 min,6 min,the Q-Tcd was 52. 55 ± 29. 30,54. 16±17.79,52. 38±16. 63. It was significantly higher than before ETT(P<0. 001). Conclusion It was suggested that Q-Tcd would increase in patients with myocar-dial ischemia after ETT,and it was a very important predictor in the auxiliary diagnosis of CAD.更多还原