# Torsades de Pointes Triggered by Transient Low‐Rate Pacing Following Leadless Pacemaker Implantation

**Authors:** Yumetsugu Munakata, Junji Morita, Yuhei Kasai, Takayuki Kitai, Yusuke Kondo

PMC · DOI: 10.1002/joa3.70220 · Journal of Arrhythmia · 2025-11-12

## TL;DR

A case shows that a leadless pacemaker setup can cause a dangerous heart rhythm called torsades de pointes in patients with prolonged QT intervals.

## Contribution

Highlights a proarrhythmic risk of automated initialization in leadless pacemakers for high-risk patients.

## Key findings

- Transient bradycardia during Micra AV2 setup triggered torsades de pointes in a patient.
- Patients with QT prolongation may require individualized pacemaker programming to avoid arrhythmias.

## Abstract

A case of torsades de pointes triggered by transient bradycardia during Micra AV2 setup highlights a proarrhythmic risk of automated initialization. Individualized programming may be necessary in high‐risk patients with QT prolongation.

## Linked entities

- **Diseases:** torsades de pointes (MONDO:0005478)

## Full-text entities

- **Diseases:** Torsades de Pointes (MESH:D016171), bradycardia (MESH:D001919), QT prolongation (MESH:D008133)
- **Chemicals:** Micra AV2 (-)
- **Species:** Homo sapiens (human, species) [taxon 9606]

## Full text

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## Figures

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## References

4 references — full list in the complete paper: https://tomesphere.com/paper/PMC12611709/full.md

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Source: https://tomesphere.com/paper/PMC12611709