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Undersensing by an ICD due to alternans of the ventricular electrogram

Frederic Van Heuverswyn, Liesbeth Timmers, Roland Stroobandt UGent and S Serge Barold (2013) ANNALS OF NONINVASIVE ELECTROCARDIOLOGY. 18(1). p.84-89
abstract
Alternans of the ventricular electrogram (VEGM) during ventricular tachycardia (VT) is a rare cause of ventricular undersensing by an implantable cardioverter-defibrillator (ICD). This report describes a patient with a St. Jude ICD who exhibited sustained monomorphic VT associated with surface QRS alternans, alternating cycle lengths, alternans of the VEGM causing intermittent undersensing of the smaller component, and intermittent 2:1 counting of ventricular intervals during 1:1 sensing in response to the ICD detection algorithm. VEGM undersensing was corrected noninvasively simply by programming the threshold start from 62.5% to 50% which increased the sensitivity based on the amplitude of the VEGM. This maneuver did not affect the satisfactory and stable defibrillation threshold.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
ventricular tachycardia, alternans, ventricular undersensing by ICD, implantable cardioverter-defibrillator, ELECTRICAL ALTERNANS, TACHYCARDIA, COMPLEX
journal title
ANNALS OF NONINVASIVE ELECTROCARDIOLOGY
Ann. Noninvasive Electrocardiol.
volume
18
issue
1
pages
84 - 89
Web of Science type
Article
Web of Science id
000314151100011
JCR category
CARDIAC & CARDIOVASCULAR SYSTEMS
JCR impact factor
1.44 (2013)
JCR rank
80/125 (2013)
JCR quartile
3 (2013)
ISSN
1082-720X
DOI
10.1111/j.1542-474X.2012.00521.x
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
2021442
handle
http://hdl.handle.net/1854/LU-2021442
date created
2012-02-06 20:56:29
date last changed
2016-12-19 15:42:01
@article{2021442,
  abstract     = {Alternans of the ventricular electrogram (VEGM) during ventricular tachycardia (VT) is a rare cause of ventricular undersensing by an implantable cardioverter-defibrillator (ICD). This report describes a patient with a St. Jude ICD who exhibited sustained monomorphic VT associated with surface QRS alternans, alternating cycle lengths, alternans of the VEGM causing intermittent undersensing of the smaller component, and intermittent 2:1 counting of ventricular intervals during 1:1 sensing in response to the ICD detection algorithm. VEGM undersensing was corrected noninvasively simply by programming the threshold start from 62.5\% to 50\% which increased the sensitivity based on the amplitude of the VEGM. This maneuver did not affect the satisfactory and stable defibrillation threshold.},
  author       = {Van Heuverswyn, Frederic and Timmers, Liesbeth and Stroobandt, Roland and Barold, S Serge},
  issn         = {1082-720X},
  journal      = {ANNALS OF NONINVASIVE ELECTROCARDIOLOGY},
  keyword      = {ventricular tachycardia,alternans,ventricular undersensing by ICD,implantable cardioverter-defibrillator,ELECTRICAL ALTERNANS,TACHYCARDIA,COMPLEX},
  language     = {eng},
  number       = {1},
  pages        = {84--89},
  title        = {Undersensing by an ICD due to alternans of the ventricular electrogram},
  url          = {http://dx.doi.org/10.1111/j.1542-474X.2012.00521.x},
  volume       = {18},
  year         = {2013},
}

Chicago
VAN HEUVERSWYN, FREDERIC, LIESBETH TIMMERS, Roland Stroobandt, and S Serge Barold. 2013. “Undersensing by an ICD Due to Alternans of the Ventricular Electrogram.” Annals of Noninvasive Electrocardiology 18 (1): 84–89.
APA
VAN HEUVERSWYN, F., TIMMERS, L., Stroobandt, R., & Barold, S. S. (2013). Undersensing by an ICD due to alternans of the ventricular electrogram. ANNALS OF NONINVASIVE ELECTROCARDIOLOGY, 18(1), 84–89.
Vancouver
1.
VAN HEUVERSWYN F, TIMMERS L, Stroobandt R, Barold SS. Undersensing by an ICD due to alternans of the ventricular electrogram. ANNALS OF NONINVASIVE ELECTROCARDIOLOGY. 2013;18(1):84–9.
MLA
VAN HEUVERSWYN, FREDERIC, LIESBETH TIMMERS, Roland Stroobandt, et al. “Undersensing by an ICD Due to Alternans of the Ventricular Electrogram.” ANNALS OF NONINVASIVE ELECTROCARDIOLOGY 18.1 (2013): 84–89. Print.