Key result
Multiple leadless pacemaker deployments can cause severe tricuspid regurgitation from chordal rupture and device entanglement.
Why the study?
The leadless pacemaker is a novel technology with high efficacy but potential unreported complications remain to be addressed.
Case Report (n=1)
Caution with multiple deployments to avoid tricuspid injury; leaves open incidence and prevention strategies for leadless pacemaker implantation.
The leadless pacemaker is an emerging technology with high efficacy and reduced complications rates. However, due to its novel status, some pitfalls remain to be addressed. We report the case of a 91-year-old patient undergoing a Micra pacemaker implantation. During the procedure, the maneuvers required for the adequate deployment of the device led to damaging of the septal tricuspid leaflet, resulting in severe tricuspid regurgitation. This is a severe mechanical complication of the Micra implantation technique, not previously reported in literature. In light of the novelty of the leadless pacemaker, we should remain cautious with regards to potential unreported complications.
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Berdaoui et al. (2021) conducted a case report in Complete atrioventricular block (n=1). Leadless pacemaker implantation (Micra) was evaluated on Procedural complication (tricuspid regurgitation). Multiple deployments during leadless pacemaker implantation caused severe tricuspid regurgitation with rupture of the tricuspid valve chordae tendineae due to device entanglement.
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