Clinical outcomes of subcutaneous implantable cardiac defibrillator implantation – Iran SICD registry

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...

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Published in:Pacing and clinical electrophysiology 2023-04, Vol.46 (4), p.273-278
Main Authors: Mehdinejadshani, Mahdiye, Fallah, Hamidreza, Kamali, Farzad, Alizadeh‐Diz, Abolfath, Eslami, Masoud, Golabchi, Allahyar, Taherpour, Mehdi, Shahabi, Javad, Mollazadeh, Reza, Madadi, Shabnam, Azhari, Amir, Sodagar, Abdolhossein, Eftekharzadeh, Mahmoud, Oraii, Saeed, Fazelifar, Amirfarjam, Kazemisaeed, Ali, Ghorbanisharif, Alireza, Dalili, Mohammad, Khorgami, Mohammadrafie, Heidari‐Bakavoli, Alireaza, Jorat, Mohammadvahid, Nikoo, Hossein, Kheirkhah, Jalal, Saravi, Mehrdad, Khodaparast, Morteza, Mirzaali, Mansour, Emkanjoo, Zahra, Mirmasoumi, Mehrdad, Sadeghian, Saeed, Mokhtari, Meisam, Hedayati‐Goudarzi, Mohammadtaghi, Haghjoo, Majid
Format: Article
Language:English
Subjects:
Adult
appropriate therapy
Bradycardia
Cardiomyopathy
Clinical outcomes
Congestive heart failure
Death, Sudden, Cardiac - etiology
Death, Sudden, Cardiac - prevention & control
Defibrillators
Defibrillators, Implantable - adverse effects
early complications
Female
Hematoma
Humans
inappropriate therapy
Iran
Ischemia
late outcome
Male
Middle Aged
Patients
Prospective Studies
Registries
subcutaneous implantable cardiac defibrillator
Tachycardia
Treatment Outcome
Ventricle
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Summary: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.
ISSN:0147-8389
1540-8159
DOI:10.1111/pace.14668