To evaluate the electrophysiological characteristics of antrograde and retrograde atrioventricularnode conduction in the patients with or without coronary artery stenosis.
比较冠状动脉狭窄与冠状动脉正常者，其房室传导系统房室顺传及室房逆传的电生理特征。
2
The capillary density in the lower part of the main trunk of the atrioventricularnodeartery was greater than that in the upper and anterior parts.