Ventricular asystole in a CRT-D device. What is the mechanism?

Pacing Clin Electrophysiol

Division of Cardiovascular Medicine, Department of Medicine, University of Southern California-Keck School of Medicine, Los Angeles, California.

Published: September 2019

We present a case of an 89-year-old man with a left ventricular assist device and cardiac resynchronization therapy device (CRT-D) who presented with multiple presyncopal events. On the night of admission, telemetry revealed a 13-s pause with appropriately timed pacing spikes but with failure to capture, followed by intermittent ventricular contraction with different QRS morphology. What was the mechanism for his ventricular asystole?

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Source
http://dx.doi.org/10.1111/pace.13773DOI Listing

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