When your heart beats, the electrical impulses that cause it to contract follow a precise pathway through your heart.

心脏右上角的窦房结会规律性地发出电脉冲，电脉冲通过一系列错综复杂的通路传导至心脏各处，由此产生规律性的收缩。

youdao

Objective To explore the treatment of functional ventricular premature beats and report the result of long term follow up of it.

目的探讨功能性室性早搏的治疗及长期随访结果。

youdao