室上性心动过速是小儿最常见的快速型心律失常之一,在儿童中发病率约为1:25,000,发作持续24～36小时以上可发生充血性心力衰竭,故正确识别、及时处理这种心动过速,在临床上有其重要意义。近十余年的研究表明,由房室结双径引起的房室结折返性心动过 Supraventricular tachycardia is one of the most common tachyarrhythmia in children, the incidence in children is about 1: 25,000, seizures for more than 24 to 36 hours can occur congestive heart failure, so the correct identification and timely treatment of this Tachycardia has its clinical significance. Nearly ten years of research shows that the atrioventricular nodal reentrant cardioversion caused by atrioventricular node dual pathways