A Case of Atrioventricular Nodal Re-entrant Rhythm.

Abstract

A 60-year-old male with a history of decompensated chronic liver disease and resolving hepatic encephalopathy was transferred for further evaluation following a witnessed episode of prolonged asystole. The patient's admission electrocardiogram showed spontaneous transitions between a borderline R-P narrow complex rhythm and sinus rhythm. The rhythm was observed to be easily terminated with ventricular overdrive pacing via the temporary catheter. We questioned what the mechanism of the rhythm may be.