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Updated: Aug 29, 2026

Tachycardia-Induced Cardiomyopathy As a Chronic Heart Failure Model in Swine
Published on: February 17, 2018
Cyclic appropriate mode switching and inappropriate back switching of a biventricular pacemaker during atrial
Lieselot van Erven1, Sander G Molhoek, Ernst E van der Wall
1Leiden University Medical Center, Department of Cardiology, Leiden, The Netherlands. l.van_erven@lumc.nl
Abstract:
In patients with resynchronization devices and intact intrinsic AV conduction, atrial tachyarrhythmias may give rise to high ventricular rates, resulting in inhibition of (bi)ventricular pacing and concomitant lack of therapeutic effects of the device. This report presents a patient with atrial arrhythmias in whom mode switching and back switching of the biventricular pacemaker occurred, due to special timing of the atrial and ventricular deflections. This case report stresses the importance of strenuous treatment of atrial arrhythmias in patients with resynchronization devices.
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