{Reference Type}: Multicenter Study
{Title}: Clinical outcomes of subcutaneous implantable cardiac defibrillator implantation - Iran SICD registry.
{Author}: Mehdinejadshani M;Fallah H;Kamali F;Alizadeh-Diz A;Eslami M;Golabchi A;Taherpour M;Shahabi J;Mollazadeh R;Madadi S;Azhari A;Sodagar A;Eftekharzadeh M;Oraii S;Fazelifar A;Kazemisaeed A;Ghorbanisharif A;Dalili M;Khorgami M;Heidari-Bakavoli A;Jorat M;Nikoo H;Kheirkhah J;Saravi M;Khodaparast M;Mirzaali M;Emkanjoo Z;Mirmasoumi M;Sadeghian S;Mokhtari M;Hedayati-Goudarzi M;Haghjoo M;
{Journal}: Pacing Clin Electrophysiol
{Volume}: 46
{Issue}: 4
{Year}: 04 2023
{Factor}: 1.912
{DOI}: 10.1111/pace.14668
{Abstract}: 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.
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.
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.
S-ICDs were effective at detecting and treating both induced and spontaneous ventricular arrhythmias. Major clinical complications were rare.