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Updated: May 6, 2026

A New Single Chamber Implantable Defibrillator with Atrial Sensing: A Practical Demonstration of Sensing and Ease of Implantation
Published on: February 28, 2012
The practical approach to discerning between atrial lead displacement and reversal in dual chamber pacemakers
M Al Mehairi1, Y Hubaishi, S Al Ghamdi
1Department of Adult Cardiology, Prince Sultan Cardiac Center, Riyadh.
Abstract:
We describe a 12-lead electrocardiogram image of a pacemaker malfunction due to atrial lead displacement. Facilitating the understanding of pacemaker timing cycles could explain the underlying mechanisms in this instance. This review utilizes the feature of the ventricular safety pacing interval to discern between atrial lead displacement and reversal.
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