Exploding Implantable Cardioverter Defibrillator
Article first published online: 13 AUG 2003
© Futura Publishing Company, Inc. 2001
Journal of Cardiovascular Electrophysiology
Volume 12, Issue 12, pages 1422–1424, December 2001
How to Cite
SWEENEY, M. O. (2001), Exploding Implantable Cardioverter Defibrillator. Journal of Cardiovascular Electrophysiology, 12: 1422–1424. doi: 10.1046/j.1540-8167.2001.01422.x
- Issue published online: 13 AUG 2003
- Article first published online: 13 AUG 2003
- Manuscript received 23 August 2001; Accepted for publication 11 October 2001.
- Cited By
- implantable cardioverter defibrillator;
- ventricular fibrillation;
Exploding Implantable Cardioverter Defibrillator. A 79-year-old man with a pectoral implantable cardioverter defibrillator (ICD) system underwent periodic defibrillation threshold testing 18 months after implant. Attempted delivery of a 15-J shock caused a light flash above the pocket and a loud “pop.” High-voltage lead impedance was < 20 Ω. Pocket exploration revealed insulation abrasion of the high-voltage portion of the single-coil right ventricular lead. The outer shield of the active can pulse was perforated and scorched due to arcing. Device analysis confirmed a shorted transistor in the high-voltage output circuit. Unsuspected physical contact between high-voltage electrodes of opposite polarity within the pocket can cause catastrophic ICD system failure.