活动平板运动试验诱发冠心病心律失常

Treadmill exercise test-induced arrhythmias in patients with coronary heart disease

目的 探讨活动平板运动试验诱发冠心病（ＣＨＤ）心律失常的临床特点。方法 使用Ｍａｒ－ｑｕｔｔｅ ＣＡＳＥ １６ 系统按Ｂｒｕｃｅ 方案对３４ 例ＣＨＤ患者进行活动平板运动试验，并分析心电图记录到的心律失常发生率、发生时间、类型及缺血范围、ＣＨＤ类例、射血分数与心律失常发生的关系。结果 活动平板运动试验诱发ＣＨＤ心律失常的发生率为８０％ （２７／３４），以室性过速性心律失常多见。心律失常的发生随运动负荷增加而增加，于运动试验恢复期发生者并非少见。运动诱发ＣＨＤ心律失常以ＣＨＤ心肌梗死型多见，似与左室射血分数无关。结论 本观察表明，活动平板运动试验诱发ＣＨＤ心律失常十分常见，应予重视。

Objective To observe the features of treadmill exercise test-induced arrhythmias in patients with coronary heart disease(CHD).Method 34 patients with CHD received a treadmill exercise test using Marqutte CASE 16 system according to Bruce protocol.Either rate,type,time of exercise-induced arrhythmias or relationship between exetent of ischemia,type of CHD,ejection fraction(EF) and exercise-induced arrhythmias were analysed.Result The rate of exercise-induced arrhythmias was 80%(27/34) during treadmill exercise test,and ventricular tachyarrhythmias were prominent.The exercise-induced arrhythmias were more frequent as exercise load increased.It was not rare that exercise-induced arrhythmias happened in recovery period of test.The exercise-induced arrhythmia was easily seen in patients with myocardial infarction,and was seemingly not related to EF.Conclusion The exercise-induced arrhythmias is very common,and special attention should be paid.