The entirely subcutaneous ICD successfully detected and converted all instances of induced ventricular fibrillation and treated all 12 episodes of spontaneous ventricular tachyarrhythmia.
Does an entirely subcutaneous implantable cardioverter-defibrillator effectively detect and convert ventricular fibrillation in patients with an indication for ICD therapy?
Patients who were candidates for ICD implantation with a class I, IIa, or IIb indication
Entirely subcutaneous implantable cardioverter-defibrillator (S-ICD)
Standard transvenous ICD (in the short-term defibrillation threshold comparison trial); no comparator in the permanent implantation trials
Successful immediate conversion of two consecutive episodes of induced ventricular fibrillation, each with a single 65-J shocksurrogate
An entirely subcutaneous ICD system is feasible and effectively detects and terminates both induced and spontaneous ventricular arrhythmias without the need for transvenous leads.
Absolute Event Rate: 0% vs 0%
In small, nonrandomized studies, an entirely subcutaneous ICD consistently detected and converted ventricular fibrillation induced during electrophysiological testing. The device also successfully detected and treated all 12 episodes of spontaneous, sustained ventricular tachyarrhythmia. (ClinicalTrials.gov numbers, NCT00399217 and NCT00853645.)
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Gust H. Bardy
Electrophysiology
Warren Smith
Auckland City Hospital
Margaret Hood
Electrophysiology
New England Journal of Medicine
University of Cambridge
University of Groningen
University of Liverpool
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Bardy et al. (Wed,) reported a other. The entirely subcutaneous ICD successfully detected and converted all instances of induced ventricular fibrillation and treated all 12 episodes of spontaneous ventricular tachyarrhythmia.
synapsesocial.com/papers/69714deaf0a245e8b19d197e — DOI: https://doi.org/10.1056/nejmoa0909545