# Authors reply regarding “A‐V‐V‐A response to single atrial premature depolarization in a narrow QRS tachycardia: What is the mechanism?”

## TL;DR

The authors explain why a specific heart rhythm is more likely caused by a reentrant tachycardia rather than a junctional ectopic tachycardia.

## Contribution

The paper clarifies the mechanism of a narrow QRS tachycardia following an atrial premature depolarization.

## Key findings

- Ventriculoatrial block after an atrial premature depolarization cannot be explained by junctional ectopic tachycardia.
- Atrioventricular nodal reentrant tachycardia is a more plausible mechanism in this case.

## Abstract

We respond to a letter by Dr. A. Goyal. If the tachycardia were junctional ectopic tachycardia (JET), the occurrence of the ventriculoatrial block following an atrial premature depolarization could not be explained. Therefore, we conclude that atrioventricular nodal reentrant tachycardia was more likely than JET.