Impact of Pulmonary Valve Replacement on Ventricular Arrhythmias in Patients With Tetralogy of Fallot and Implantable Cardioverter-Defibrillator

Francis Bessière, Kévin Gardey, Abdeslam Bouzeman, Guillaume Duthoit, Linda Koutbi, Fabien Labombarda, Christelle Marquié, Jean Baptiste Gourraud, Pierre Mondoly, Jean Marc Sellal, Pierre Bordachar, Alexis Hermida, Frédéric Anselme, Anouk Asselin, Caroline Audinet, Yvette Bernard, Serge Boveda, Philippe Chevalier, Gael Clerici, Antoine da CostaMaxime de Guillebon, Pascal Defaye, Romain Eschalier, Rodrigue Garcia, Charles Guenancia, Benoit Guy-Moyat, Roland Henaine, Didier Irles, Laurence Iserin, François Jourda, Magalie Ladouceur, Philippe Lagrange, Mikael Laredo, Jacques Mansourati, Grégoire Massoulié, Amel Mathiron, Philippe Maury, Cédric Nguyen, Sandro Ninni, Marie-Cécile Perier, Bertrand Pierre, Frédéric Sacher, Camille Walton, Pierre Winum, Raphaël Martins, Jean Luc Pasquié, Jean Benoit Thambo, Xavier Jouven, Nicolas Combes, Sylvie Di Filippo, Eloi Marijon, Victor Waldmann

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

OBJECTIVES: This study aimed to assess the impact of pulmonary valve replacement (PVR) on ventricular arrhythmias burden in a population of tetralogy of Fallot (TOF) patients with continuous cardiac monitoring by implantable cardioverter-defibrillators (ICDs).

BACKGROUND: Sudden cardiac death is a major cause of death in TOF, and right ventricular overload is commonly considered to be a potential trigger for ventricular arrhythmias.

METHODS: Data were analyzed from a nationwide French ongoing study (DAI-T4F) including all TOF patients with an ICD since 2000. Survival data with recurrent events were used to compare the burden of appropriate ICD therapies before and after PVR in patients who underwent PVR over the study period.

RESULTS: A total of 165 patients (mean age 42.2 ± 13.3 years, 70.1% male) were included from 40 centers. Over a median follow-up period of 6.8 (interquartile range: 2.5 to 11.4) years, 26 patients (15.8%) underwent PVR. Among those patients, 18 (69.2%) experienced at least 1 appropriate ICD therapy. When considering all ICD therapies delivered before (n = 62) and after (n = 16) PVR, the burden of appropriate ICD therapies was significantly lower after PVR (HR: 0.21; 95% confidence interval [CI]: 0.08 to 0.56; p = 0.002). Respective appropriate ICD therapies rates per 100 person-years were 44.0 (95% CI: 35.7 to 52.5) before and 13.2 (95% CI: 7.7 to 20.5) after PVR (p < 0.001). In the overall cohort, PVR before ICD implantation was also independently associated with a lower risk of appropriate ICD therapy in primary prevention patients (HR: 0.29 [95% CI: 0.10 to 0.89]; p = 0.031).

CONCLUSIONS: In this cohort of high-risk TOF patients implanted with an ICD, the burden of appropriate ICD therapies was significantly reduced after PVR. While optimal indications and timing for PVR are debated, these findings suggest the importance of considering ventricular arrhythmias in the overall decision-making process. (French National Registry of Patients With Tetralogy of Fallot and Implantable Cardioverter Defibrillator [DAI-T4F]; NCT03837574).

Original languageEnglish
Pages (from-to)1285-1293
Number of pages9
JournalJACC. Clinical electrophysiology
Volume7
Issue number10
DOIs
Publication statusPublished - Oct 2021

Bibliographical note

Copyright © 2021 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.

Keywords

  • Adult
  • Arrhythmias, Cardiac/therapy
  • Cardiac Surgical Procedures
  • Defibrillators, Implantable
  • Female
  • Humans
  • Male
  • Middle Aged
  • Pulmonary Valve/surgery
  • Tetralogy of Fallot/surgery

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