T-wave oversensing and inappropriate shocks: a case report.
Publication/Presentation Date
5-1-2008
Abstract
A 27-year-old male with congenital long QT syndrome, SCN5A mutation experienced recurrent inappropriate exercise-related implantable cardioverter defibrillator (ICD) shocks. This device showed T-wave oversensing with double, which lead to these device discharges. Dynamic T-wave oversensing was reproducibly provoked at exercise treadmill testing and was confirmed as the mechanism leading to double counting. The insertion of a new pacing and sensing lead with increased R-wave amplitude did not solve the problem. Exchanging the existing ICD generator with one capable of automatic sensitivity control (Biotronik, Lexos DR, Biotronik, Berlin, Germany) completely eliminated T-wave oversensing and inappropriate shocks.
Volume
10
Issue
5
First Page
552
Last Page
555
ISSN
1532-2092
Published In/Presented At
Srivathsan, K., Scott, L. R., & Altemose, G. T. (2008). T-wave oversensing and inappropriate shocks: a case report. Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology, 10(5), 552–555. https://doi.org/10.1093/europace/eun083
Disciplines
Medicine and Health Sciences
PubMedID
18442965
Department(s)
Department of Medicine
Document Type
Article