Rate-Responsive Pacing Mimicking Ventricular Tachycardia.
We describe 2 patients with rate-responsive permanent ventricular pacemakers who developed upper rate pacing while at rest. In one patient this occurred during chest physiotherapy and in the other as a result of muscle fasciculations. In both cases, the paced rhythm was misdiagnosed as ventricular tachycardia. Reprogramming of the pulse generators prevented further inappropriate rapid pacing.
Weiss
DN
Division of Cardiology, Department of Veterans Affairs Medical Center, 10 North Greene Street, Baltimore, MD, 21201, USA.
Gold
MR
Peters
RW