Abstract
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.
Original language | English (US) |
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Pages (from-to) | 161-166 |
Number of pages | 6 |
Journal | PACE - Pacing and Clinical Electrophysiology |
Volume | 41 |
Issue number | 2 |
DOIs | |
State | Published - Feb 2018 |
Keywords
- MV Chop
- minute ventilation
- oversensing
- pacemaker
- pacemaker complication
- rate-adaptive pacemaker
- transthoracic impedance measurement
ASJC Scopus subject areas
- Cardiology and Cardiovascular Medicine