Implantable cardioverter-defibrillator failure unmasked by a "lucky" shock

Eng, Lim K., Walters, Tomos E. and Gould, Paul A. (2012) Implantable cardioverter-defibrillator failure unmasked by a "lucky" shock. Journal of Arrhythmia, 28 4: 254-257. doi:10.1016/j.joa.2012.04.002

Author Eng, Lim K.
Walters, Tomos E.
Gould, Paul A.
Title Implantable cardioverter-defibrillator failure unmasked by a "lucky" shock
Journal name Journal of Arrhythmia   Check publisher's open access policy
ISSN 1880-4276
Publication date 2012-08
Sub-type Article (original research)
DOI 10.1016/j.joa.2012.04.002
Open Access Status DOI
Volume 28
Issue 4
Start page 254
End page 257
Total pages 4
Place of publication Tokyo, Japan
Publisher Japanese Heart Rhythm Society
Language eng
Subject 2705 Cardiology and Cardiovascular Medicine
Formatted abstract
A young woman with placement of a dual-chamber implantable cardioverter-defibrillator (ICD) and a history of prior cardiac arrest due to congenital long QT syndrome presented with defibrillation caused by a ventricular fibrillation arrest. Routine device interrogation revealed significant lead dysfunction. During device revision, breaches were detected in the insulation of both leads within the pre-pectoral pocket and an "arc mark" was observed on the ICD generator casing; these findings were consistent with a high-voltage discharge through a short circuit between the denuded right ventricular lead and the casing. In this case, system failure was unmasked only by interrogation after appropriate device activation, which highlights the importance of thorough evaluation after all ICD activations.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Medicine Publications
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