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Five-year experience with implantable defibrillators in children

R M Hamilton1, P Dorian, R M Gow

  • 1Department of Paediatrics, The Hospital for Sick Children, Toronto, Ontario.

Insights

Implantable cardioverter-defibrillators are safe and effective for children aged 4-16 at high risk of sudden cardiac death. No deaths occurred in the study group, with 6 of 11 patients receiving appropriate shocks.

Area of Science:

  • Pediatric Cardiology
  • Cardiovascular Surgery
  • Biomedical Engineering

Background:

  • Sudden cardiac death (SCD) is a critical concern in pediatric populations.
  • Identifying children at high risk for SCD is essential for timely intervention.
  • Implantable cardioverter-defibrillators (ICDs) are established treatments for SCD prevention in adults.

Purpose of the Study:

  • To evaluate the safety and efficacy of implantable cardioverter-defibrillators (ICDs) in pediatric patients.
  • To assess ICD performance in children with a history of sudden cardiac arrest or high risk for SCD.

Main Methods:

  • A retrospective analysis of pediatric patients (aged 4-16 years) who received ICDs over a 5-year period.
  • Inclusion of both transvenous and epicardial ICD implantation techniques.
  • Monitoring for mortality, device-related complications, and clinically appropriate shocks.

Main Results:

  • No mortality was observed in the study cohort during the follow-up period.
  • Six out of eleven patients experienced clinically appropriate shocks, indicating device efficacy.
  • Both transvenous and epicardial ICDs demonstrated safety and effectiveness in this pediatric group.

Conclusions:

  • Implantable cardioverter-defibrillators are a safe and effective therapeutic option for children at high risk of sudden cardiac death.
  • ICD implantation can be successfully performed in pediatric patients, regardless of the surgical approach (transvenous or epicardial).
  • Further research may explore long-term outcomes and specific indications for ICDs in diverse pediatric cardiac conditions.

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