Subcutaneous implantable-defibrillators delivered appropriate therapy in 13% of patients over 2 years, with low rates of inappropriate intervention (8.9%) and pocket infection (1.8%).
Observational (n=223)
Yes
In a national registry, S-ICDs were effective at treating ventricular arrhythmias with rare major clinical complications over a 2-year follow-up.
BACKGROUND: The subcutaneous implantable-defibrillator (S-ICD) is a relatively new alternative to the transvenous ICD system to minimize intravascular lead-related complications. This paper presents outcome of SICD implantation in patients enrolled in Iran S-ICD registry. METHODS: Between October 2015 and June 2022, this prospective multicenter national registry included 223 patients with a standard indication for an ICD, who neither required bradycardia pacing nor needed cardiac resynchronization to evaluate the early post-implant complications and long-term follow-up results of the S-ICD system. RESULTS: The mean age of the patients was 45 ± 17 years. The majority (79.4%) were male. Ischemic cardiomyopathy (39.5%) was the most common underlying disorder among patients selected for S-ICD implant. Most study patients (68.6%) had ICD for primary prevention of sudden cardiac death. Seven patients (3.1%) were found to have suboptimal lead positions. Six patients (2.7%) developed a pocket hematoma; all were managed medically. During a mean follow-up of 2 years, the appropriate therapy was recorded in 13% of the patients and inappropriate ICD intervention mainly due to supraventricular tachycardia in 8.9%. Pocket infection was observed in four patients (1.8%) and five patients (2.2%) died mainly due to heart failure. CONCLUSION: S-ICDs were effective at detecting and treating both induced and spontaneous ventricular arrhythmias. Major clinical complications were rare.
Mehdinejadshani et al. (Wed,) conducted a observational in Standard indication for an ICD (n=223). Subcutaneous implantable-defibrillator (S-ICD) was evaluated on Early post-implant complications and long-term follow-up results. Subcutaneous implantable-defibrillators delivered appropriate therapy in 13% of patients over 2 years, with low rates of inappropriate intervention (8.9%) and pocket infection (1.8%).
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