房室结双径路 ( DAVNP)是一种常见的电生理现象 ,快径和慢径的电生理学特征易受自主神经和药物的影响而发生变化。既然快径和慢径的传导特性存在明显差异 ,它们对 β受体阻滞剂的效应也可能存在差异。近来 ,我们观察了倍他乐克对快径和慢径电生理学特性的影响 ,现报告如下。对 Atrioventricular node dual pathway (DAVNP) is a common electrophysiological phenomenon, the fast and slow pathophysiological characteristics of electrophysiology susceptible to autonomic nervous and drug changes. Since there is a clear difference between the conduction properties of fast and slow paths, their effects on beta-blockers may also differ. Recently, we have observed the impact of metoprolol on the electrophysiological properties of fast and slow paths, the report is as follows. Correct