4 doctors weighed in:

How does electrical stimulation of the heart coordinate the cardiac cycle again?

4 doctors weighed in
Dr. Irv Loh
Internal Medicine - Cardiology
3 doctors agree

In brief: Reset own pacemaker

Assuming query is about cardioversion.
There are hierarchies of pacemaker cells in the heart. Fastest one usually takes over. Normal sinus node, then av node or "junction", then purkinje or ventricular pacemakers, in that approximate order. If there is a rhythm disturbance involving a faster abnormal rhythm, an electrical pulse carefully delivered can reset, and allow the fastest normal pacer.

In brief: Reset own pacemaker

Assuming query is about cardioversion.
There are hierarchies of pacemaker cells in the heart. Fastest one usually takes over. Normal sinus node, then av node or "junction", then purkinje or ventricular pacemakers, in that approximate order. If there is a rhythm disturbance involving a faster abnormal rhythm, an electrical pulse carefully delivered can reset, and allow the fastest normal pacer.
Dr. Irv Loh
Dr. Irv Loh
Thank
Read more answers from doctors