open access

Vol 13, No 1 (2018)
Case Reports
Published online: 2018-03-22
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Progressive non-ischaemic cardiomyopathy resulting in T-wave oversensing and inappropriate shocks: case report

Bahri Köroğlu, Umut Celikyurt, Aysen Agacdiken , Ahmet Vural
DOI: 10.5603/FC.2018.0009
·
Folia Cardiologica 2018;13(1):51-54.

open access

Vol 13, No 1 (2018)
Case Reports
Published online: 2018-03-22

Abstract

T-wave oversensing is one of the causes of inappropriate shocks. It results from various conditions including progressive cardiomyopathy, diminution of R-wave amplitude and relative or dynamic gain in the T-wave amplitude, electrolyte abnormalities, injury current-related increase in the T-wave voltage. We report a 59-year-old patient who presented with implantable cardioverter defibrillator shocks after 5 year implantation with decreased R-wave amplitude and T-wave changes on 12-lead electrocardiography.

Abstract

T-wave oversensing is one of the causes of inappropriate shocks. It results from various conditions including progressive cardiomyopathy, diminution of R-wave amplitude and relative or dynamic gain in the T-wave amplitude, electrolyte abnormalities, injury current-related increase in the T-wave voltage. We report a 59-year-old patient who presented with implantable cardioverter defibrillator shocks after 5 year implantation with decreased R-wave amplitude and T-wave changes on 12-lead electrocardiography.

Get Citation

Keywords

progressive non-ischaemic cardiomyopathy, T-wave oversensing, inappropriate shocks

About this article
Title

Progressive non-ischaemic cardiomyopathy resulting in T-wave oversensing and inappropriate shocks: case report

Journal

Folia Cardiologica

Issue

Vol 13, No 1 (2018)

Pages

51-54

Published online

2018-03-22

DOI

10.5603/FC.2018.0009

Bibliographic record

Folia Cardiologica 2018;13(1):51-54.

Keywords

progressive non-ischaemic cardiomyopathy
T-wave oversensing
inappropriate shocks

Authors

Bahri Köroğlu
Umut Celikyurt
Aysen Agacdiken
Ahmet Vural

References (4)
  1. Jimenez-Lopez J, Arias MA, Akerstrom F, et al. A single shock during an episode of ventricular tachycardia: is the device working properly? Indian Pacing Electrophysiol J. 2012; 12(5): 226–228.
  2. Srivathsan K, Scott LR, Altemose GT. T-wave oversensing and inappropriate shocks: a case report. Europace. 2008; 10(5): 552–555.
  3. Rasania SP, Mountantonakis S, Patel VV. Inappropriate ICD shocks caused by T-wave oversensing due to acute alcohol intoxication. Pacing Clin Electrophysiol. 2012; 35(9): e267–e271.
  4. Watanabe H, Chinushi M, Izumi D, et al. Decrease in amplitude of intracardiac ventricular electrogram and inappropriate therapy in patients with an implantable cardioverter defibrillator. Int Heart J. 2006; 47(3): 363–370.

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