# Leaping to Diagnosis: The Frog Sign as a Key Clue in AVNRT

**Authors:** Andreas Mussigbrodt, Maria Herrera Bethencourt, Romain Vergier, Marinela Blidar, Alberto Alfie

PMC · DOI: 10.1002/ccr3.70248 · Clinical Case Reports · 2025-03-13

## TL;DR

The 'frog sign' in heart rhythms helps diagnose AVNRT, a heart condition successfully treated with ablation.

## Contribution

The frog sign is identified as a novel and specific diagnostic indicator for AVNRT.

## Key findings

- The frog sign is characterized by prominent cannon A waves in AVNRT.
- AVNRT was confirmed via electrophysiological study and treated with radiofrequency ablation.

## Abstract

The “frog sign,” characterized by prominent cannon A waves, is a critical diagnostic clue for AV‐nodal reentrant tachycardia (AVNRT). It was confirmed through electrophysiological study and was successfully treated with radiofrequency ablation.

## Full-text entities

- **Diseases:** AV-nodal reentrant tachycardia (MESH:D013611)

## Full text

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## References

2 references — full list in the complete paper: https://tomesphere.com/paper/PMC11906487/full.md

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Source: https://tomesphere.com/paper/PMC11906487