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Updated: May 19, 2026

A New Single Chamber Implantable Defibrillator with Atrial Sensing: A Practical Demonstration of Sensing and Ease of Implantation
Published on: February 28, 2012
Using left-ventricular-only pacing to eliminate T-wave oversensing in a biventricular implantable cardiac
Clarence Khoo1, Matthew Bennett, Santabhanu Chakrabarti
1Division of Cardiology, University of British Columbia, Vancouver, British Columbia, Canada.
Abstract:
A man aged 75 years and with nonischemic cardiomyopathy had implantation of a biventricular implantable cardiac defibrillator (ICD). Consistent biventricular pacing was limited by intermittent T-wave oversensing (TWOS). A strategy of left-ventricular-only pacing was used to eliminate TWOS. This strategy obviates the need to reduce ventricular sensitivity and thus may be an effective alternative to biventricular pacing complicated by TWOS.
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