TY - JOUR AU - Supple, Gregory E. AB - Journal of Interventional Cardiac Electrophysiology https://doi.org/10.1007/s10840-023-01563-3 IMAGES IN ELEC TROPHYSIOLOGY Undersensing of polymorphic VT by S‑ICD, detected by an insertable cardiac monitor: two is company 1 2 2 2 Naga Venkata K Pothineni  · Emily Perovich  · Christian S. Yacono  · Gregory E. Supple Received: 21 January 2023 / Accepted: 9 May 2023 © The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2023 A 57-year-old man with non-ischemic cardiomyopathy explanted device by the manufacturer did not reveal any and persistent atrial fibrillation (AF) had an insert- defects. able cardiac monitor (ICM) for arrhythmia monitoring Although the S-ICD offers potential advantages in which revealed salvos of ventricular tachycardia (VT) patients without pacing indications, problems with prompting a subcutaneous ICD (S-ICD) implantation. appropriate sensing remain the Achilles heel of this DFT testing at implant demonstrated appropriate VF technology [1]. In the shock zone, the S-ICD detects VF sensing in the primary sensing configuration and suc- using only rate and duration, with a nonprogrammable cessful defibrillation at 65 J. The time to therapy was 18 of 24 duration criteria before delivering therapy [2]. 22 s with no evidence of undersensing. The S-ICD was It is possible that the alternating amplitude of PMVT and programmed with a shock zone at 240 bpm and a TI - Undersensing of polymorphic VT by S-ICD, detected by an insertable cardiac monitor: two is company JF - Journal of Interventional Cardiac Electrophysiology DO - 10.1007/s10840-023-01563-3 DA - 2025-04-01 UR - https://www.deepdyve.com/lp/springer-journals/undersensing-of-polymorphic-vt-by-s-icd-detected-by-an-insertable-aVd8jb0tr0 SP - 507 EP - 508 VL - 68 IS - 3 DP - DeepDyve ER -