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CBA was associated with equivalent 1-year FFAF rate as RFA for pAF. Procedure and fluoroscopy times were shorter for CBA and fewer cardiac perforations occurred.

The totally subcutaneous implantable cardioverter and defibrillator (S-ICD) represents the most innovative development in implantable cardioverter and defibrillator therapy in the last 15 years. Its development arose out of concern for the long-term complications of transvenous devices. Clinical trials have shown that it is a safe and effective device for patients at risk of sudden cardiac death. The lack of transvenous and intracardiac components makes it an attractive choice for young patients, those with limited vascular access and increased infectious risk. Despite these advantages, the current S-ICD system has limitations, including the inability to deliver cardiac pacing. Future programming and technologic advancements have the opportunity to dramatically improve the efficacy and broaden the patient population treated with the S-ICD.

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