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Case Reports
. 2023 Mar;40(3):271-275.
doi: 10.1111/echo.15529. Epub 2023 Jan 31.

Papillary muscle ventricular ectopy ablation in a malignant mitral valve prolapse: Ablation in Malignant Mitral Valve Prolapse: Ablation in Malignant Mitral Valve Prolapse

Sergio Conti  1 , Francesco Sabatino  1 , Carlo Caserta  2 , Giuseppe Sgarito  1
Affiliations
Case Reports

Papillary muscle ventricular ectopy ablation in a malignant mitral valve prolapse: Ablation in Malignant Mitral Valve Prolapse: Ablation in Malignant Mitral Valve Prolapse

Sergio Conti et al. Echocardiography. 2023 Mar.

Abstract

Patients with mitral valve prolapse (MVP) have a heterogeneous clinical spectrum, ranging from benign to severe clinical presentations such as sudden cardiac death (SCD). Some of the markers of "arrhythmic MVP" include inverted/biphasic T-waves, QT prolongation, and polymorphic premature ventricular contractions (PVCs) originating from the left ventricular outflow tract and papillary muscles (PMs). The genesis of arrhythmias in MVP recognizes the combination of the substrate (fibrosis) and the trigger (mechanical stretch). Therefore, ablation of ventricular arrhythmias originating from PMs in a patient with MVP can be considered an adjunctive strategy to lower the arrhythmic burden and reduce the risk of ICD shocks.

Keywords: catheter ablation; mitral annular disjunction; mitral valve prolapse; premature ventricular contractions; sudden cardiac death; ventricular fibrillation; ventricular tachycardia.

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