摘要
The subcutaneous implantable cardioverter-defi brillator(ICD)is a novel technology using a subcutaneous(extrathoracic)system for treatment of potential lethal ventricular arrhythmias.It avoids many of the risks of transvenous ICD implantation.It may be considered in patients having an ICD indication who do not have a pacing and/or cardiac resynchronization therapy indication,and who are unlikely to benefi t from antitachycardia pacing therapy.We review patient selection,system components,the implantation technique,and screening considerations for subcutaneous ICD implantation.Its uses in specific patient populations,including children,patients with congenital heart disease,hypertrophic cardiomyopathy,or end-stage renal disease,and patients with preexisting pacemakers,are highlighted.Areas of future investigation are reviewed,including potential use with leadless pacing and magnetic resonance imaging.
