“预激综合征”是一种先天性、与器质有关的心脏疾病。预激本身不引起症状.但伴发心动过速的发生率为1.8%,随年龄增长而增加,其中房颤发病率达15%一30%。在院前急救中,能捕捉到本病明显心电图并诊治准确及时却并不容易。本病可突发,突发后若诊治不当有可能导致心房异常波动下传而引发室速、室扑、室颤从而危 “WPW syndrome ” is a congenital, and heart-related disease. Pre-excitation itself does not cause symptoms, but the incidence of tachycardia associated with 1.8%, with age and increased, of which atrial fibrillation incidence of 15% to 30%. In the hospital first aid, can capture the obvious ECG and accurate diagnosis and treatment of timely but it is not easy. The disease can be sudden, if sudden diagnosis and treatment after a sudden may lead to abnormal fluctuations in the atrium caused by ventricular tachycardia, ventricular flutter, ventricular fibrillation thus risk