# A Rare Case of RNRVAS Termination and Re‐Initiation Visualized on a 12‐Lead ECG

## TL;DR

A rare heart rhythm pattern called RNRVAS was observed and captured on an ECG, showing how pacemaker settings and heart conditions can influence it.

## Contribution

The paper presents a unique visualization of RNRVAS termination and re-initiation using a standard 12-lead ECG.

## Key findings

- RNRVAS termination and re-initiation were clearly captured on a 12-lead ECG.
- Pacemaker algorithms and abnormal atrial refractoriness play roles in triggering or terminating RNRVAS.

## Abstract

This case illustrates both termination and re‐initiation of repetitive non‐reentrant ventriculoatrial synchrony (RNRVAS) visualized on a standard 12‐lead ECG. It highlights how pacemaker algorithms such as VIP and PVC response, together with abnormal atrial refractoriness, can trigger or terminate RNRVAS.