The SIDECAR project: S-IcD registry in European paediatriC and young Adult patients with congenital heaRt defects

Massimo Stefano Silvetti, Luc Bruyndonckx, Alice Maltret, Roman Gebauer, Joanna Kwiatkowska, László Környei, Sonia Albanese, Cristina Raimondo, Christian Paech, Maciej Kempa, Gábor Fésüs, Reinoud E. Knops, Nico Andreas Blom, Fabrizio Drago

Research output: Contribution to journalArticlepeer-review

Abstract

Aims: Subcutaneous-implantable cardiac defibrillators (S-ICDs) are used increasingly to prevent sudden cardiac death in young patients. This study was set up to gain insight in the indications for S-ICD, possible complications, and their predictors and follow-up results. Methods and results: A multicentre, observational, retrospective, non-randomized, standard-of-care registry on S-ICD outcome in young patients with congenital heart diseases (CHDs), inherited arrhythmias (IAs), idiopathic ventricular fibrillation (IVF), and cardiomyopathies (CMPs). Anthropometry was registered as well as implantation technique, mid-term device-related complications, and incidence of appropriate/inappropriate shocks (IASs). Data are reported as median (interquartile range) or mean ± standard deviation. Eighty-one patients (47% CMPs, 20% CHD, 21% IVF, and 12% IA), aged 15 (14-17) years, with body mass index (BMI) 21.8 ± 3.8 kg/m2, underwent S-ICD implantation (primary prevention in 59%). This was performed with two-incision technique in 81% and with a subcutaneous pocket in 59%. Shock and conditional zones were programmed at 250 (200-250) and 210 (180-240) b.p.m., respectively. No intraoperative complications occurred. Follow up was 19 (6-35) months: no defibrillation failure occurred, 17% of patients received appropriate shocks, 13% of patients received IAS (supraventricular tachycardias 40%, T-wave oversensing 40%, and non-cardiac oversensing 20%). Reprogramming, proper drug therapy, and surgical revision avoided further IAS. Complications requiring surgical revision occurred in 9% of patients, with higher risks in patients with three-incision procedures [hazard ratio (HR) 4.3, 95% confidence interval (95% CI) 0.5-34, P = 0.038] and BMI < 20 (HR 5.1, 95% CI 1-24, P = 0.031). Conclusion: This multicentre European paediatric registry showed good S-ICD efficacy and safety in young patients. Newer implantation techniques and BMI > 20 showed better outcome.

Original languageEnglish
Pages (from-to)460-468
Number of pages9
JournalEuropace
Volume25
Issue number2
DOIs
Publication statusPublished - 1 Feb 2023
Externally publishedYes

Keywords

  • Congenital heart disease
  • ICD complications
  • Implantable cardioverter defibrillator
  • Paediatric age
  • Subcutaneous-ICD

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