Current guidelines recommend defibrillation testing (DT) performance in patients with a subcutaneous implantable cardioverter defibrillator (S-ICD), theoretically to reduce the amount of ineffective shocks. DT however, has been proven unnecessary in transvenous ICD and real-world data show a growing trend in avoidance of DT after S-ICD implantation.
Ricciardi D, Ziacchi M, Gasperetti A, Schiavone M, Picarelli F, Diemberger I, Bontempi L, Di Belardino N, Bisignani G, De Bonis S, Mitacchione G, Calabrese V, Lavalle C, Piro A, Pignalberi C, Santini L, Grigioni F, Tondo C, Biffi M, Forleo GB. Clinical impact of defibrillation testing in a real-world S-ICD population: data from the ELISIR registry. J Cardiovasc Electrophysiol 2020 Dec 9. doi: 10.1111/jce.14833.