Atrial pacing every other beat: Is it pacemaker malfunction?
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Updated: Jan 25, 2026

Transesophageal Atrial Burst Pacing for Atrial Fibrillation Induction in Rats
Published on: February 14, 2022
Brittany Owen1, Molina Razavi2, Robert Keyser3
1The Section of Cardiology, The Department of Medicine, Baylor College of Medicine, Houston, TX, United States of America.
Abstract:
A 45 year old female with hypertrophic obstructive cardiomyopathy and a dual chamber ICD underwent left ventricular outflow and mid ventricular cavity myectomy and mitral valve replacement. On her 5th day after surgery, ECG shows electronic atrial pacing every other complex with monomorphic wide QRS rhythm. The explanation of this ECG pattern is discussed.
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