预激综合征是心律失常中一个常见而重要的病症,内容相当丰富,近年来进展也较多。限于篇幅,本文仅简述以下几个问题。以期有助于读者对本综合征认识的提高。一、决定心室预激程度和P—R间期的因素众所周知,不同程度的心室预激可造成不同程度的QRS形态的改变。预激的心室肌群越多,QRS波便越宽。从某种意义上来看,预激综合征的QR Wolff-Parkinson-White syndrome is a common and important disorder in arrhythmia, which is quite rich in content and has made great progress in recent years. Due to space limitations, this article only briefly describes the following questions. In order to help readers improve the understanding of the syndrome. First, determine the degree of ventricular pre-excitation and P-R interval factors As we all know, varying degrees of ventricular pre-excitation can cause varying degrees of QRS morphological changes. Pre-excited ventricular muscle more QRS wave will be wider. In a way, QR of Wolff-Parkinson’s syndrome