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Exercise-related T-wave oversensing: an underestimated cause of reduced exercise capacity in a pacemaker-dependent patient-a case report and review of the literature.

Authors
  • Topf, Albert1
  • Motloch, Lukas J2
  • Kraus, Johannes2
  • Danmayr, Franz2
  • Mirna, Moritz2
  • Schernthaner, Christiane2
  • Hoppe, Uta C2
  • Strohmer, Bernhard2
  • 1 Department of Cardiology, Clinic of Internal Medicine II, Paracelsus Medical University of Salzburg, Salzburg, Austria. [email protected] , (Austria)
  • 2 Department of Cardiology, Clinic of Internal Medicine II, Paracelsus Medical University of Salzburg, Salzburg, Austria. , (Austria)
Type
Published Article
Journal
Journal of Interventional Cardiac Electrophysiology
Publisher
Springer-Verlag
Publication Date
Oct 01, 2020
Volume
59
Issue
1
Pages
67–70
Identifiers
DOI: 10.1007/s10840-019-00698-6
PMID: 31974858
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

A 62-year-old pacemaker-dependent patient presented to our department with a sudden onset of reduced physical capacity. While initial physical and pacemaker evaluations remained without specific findings, Holter-ECG monitoring revealed an abnormal rate response with unusual pauses during physical exercise. Consequently, closer evaluation of the pacemaker system revealed intermittent, exercise-related T-wave oversensing (TWOS). While TWOS remains a significant burden in ICD-patients, it might be an underestimated but clinically significant event in pacemaker patients. Further studies should evaluate the impact of TWOS in this patient population.

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