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Oversensing of transthoracic excitation stimuli in contemporary pacemakers
Author(s) -
Ryan James D.,
Tempel Nathan D.,
Engle Dean D.,
Hayes David L.,
Cha YongMei,
Asirvatham Samuel J.
Publication year - 2018
Publication title -
pacing and clinical electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.686
H-Index - 101
eISSN - 1540-8159
pISSN - 0147-8389
DOI - 10.1111/pace.13269
Subject(s) - medicine , cardiology , incidence (geometry) , optics , physics
Background Transthoracic impedance measurements (TIM) is primarily used for minute ventilation rate adaptive sensors in pacemakers. With elevated impedance, the TIM electrical signal itself is oversensed, causing device malfunction. Objective We report an increased incidence of TIM oversensing. Method Retrospective chart review. We review existing records of 18 patients who have demonstrated device malfunction with TIM oversensing. Results We have found a 1.8% incidence of TIM‐related oversensing in our patient population of 959 patients with contemporary Boston Scientific (Marlborough, MA, USA) pacemakers and cardiac resynchronization therapy pacemakers. One patient experienced a syncopal episode. Conclusion Oversensing with pacing inhibition is apparent with the potential of adverse effects to patients.