Long-time "real-life" performance of the subcutaneous ICD in patients with electrical heart disease or idiopathic ventricular fibrillation.

Abstract

BACKGROUNDS:

The totally subcutaneous implantable defibrillator (S-ICD) has been designed as a new alternative to conventional implantable defibrillators. This system is especially attractive for young patients. However, long-term experience is not yet available. To address the question whether the S-ICD system is safe and feasible for young patients with electrical heart disease or idiopathic ventricular fibrillation (VF), the data of a standard of care prospective single center S-ICD registry were evaluated.

METHODS:

In the present study, 24 patients (age 34.2 ± 11.5 years) with electrical heart disease or idiopathic VF received an S-ICD for primary (n = 8) or secondary prevention (n = 16). The mean follow-up duration was 29.6 ± 15.1 months.

RESULTS:

Ventricular arrhythmias were adequately detected in four patients (17 %). In three patients (13 %) oversensing was noticed and led to at least one inappropriate shock in two patients (8 %). Further adverse events included surgical revision due to a mobile pulse generator as well as explantation of one system and switch to a transvenous ICD system due to several ineffective shocks.

CONCLUSIONS:

The results of the present study suggest that S-ICD therapy may be an attractive alternative in young patients with electrical heart disease or idiopathic VF. However, episodes of oversensing as well as ineffective shocks may occur.

• Authors: Gerrit Frommeyer, Dirk G Dechering, Simon Kochhäuser, Markus Bettin, Julia Köbe, Lars Eckardt, Florian Reinke
• Journal: Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing (J Interv Card Electrophysiol) Vol. 47 Issue 2 Pg. 185-188 (Nov 2016) ISSN: 1572-8595 [Electronic] Netherlands
• PMID: 27217031 (Publication Type: Clinical Trial, Journal Article)

Topics

• Adult
• Death, Sudden, Cardiac (prevention & control)
• Defibrillators, Implantable
• Equipment Design
• Equipment Failure Analysis
• Feasibility Studies
• Female
• Heart Failure (diagnosis, prevention & control)
• Humans
• Longitudinal Studies
• Male
• Treatment Outcome
• Ventricular Fibrillation (diagnosis, prevention & control)