阵发性室上性心动过速(PSVT,以下简称室上速)是由心房或房室交界处异位兴奋灶快速释放冲动所产生的一种心律失常。若不及时治疗易致心力衰竭[1],其发生率仅为1/25000,在婴儿的发病情况则更少见。因该病在临床中少见,所以很容易忽略本病,一旦发生,措施不及。2001年1月至2009年1 Paroxysmal supraventricular tachycardia (PSVT, hereinafter referred to as supraventricular tachycardia) is by the atrial or atrioventricular junction ectopic excitement stove rapid release impulsive resulting arrhythmia. Without timely treatment of heart failure caused by easy [1], its incidence was only 1/25000, the incidence of infants is even more rare. Because the disease is rare in clinical, it is easy to overlook the disease, if it happens, the measure is not. January 2001 to 2009 1