Impulses starting in the ventricles produce ventricular premature beats that are regular and fast, ranging from 100 to 250 beats per minute.

心室发出的脉冲产生规则且快速的室性早搏，范围为100-250次/分钟。

Automaticity of the purkinje fibers may lead to the development of one or more ectopic pacemaker sites in the ventricles causing ventricular premature beats, tachycardia and fibrillation.

浦肯野纤维的自律性可能导致心室内一个或多个异位起搏点发展，导致室性早搏、心动过速和纤颤。