Introduction
Nodo-ventricular (NV) fiber is a rare type of Mahaim’s bundle which
connects the atrio-ventricular (AV) node and the ventricular myocardium.
In the light of low prevalence of Mahaim’s bundle
(<3%)[1], occurrence of NV fibers is
even rare. Previous literatures about NV fibers were mainly case reports
and not all of them were describe clearly. We met with 3 cases of NV
fibers from 3 hospitals in the recent 3 years. We will clarify the
electrophysiological mechanisms of these NV fibers by analyzing their
similarities and individual characteristics.