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Ventricular asystole in a CRT‐D device. What is the mechanism?
Author(s) -
Reddy Pavan,
Do Khuyen,
Doshi Rahul,
Shinbane Jerold,
Konecny Tomas
Publication year - 2019
Publication title -
pacing and clinical electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.686
H-Index - 101
eISSN - 1540-8159
pISSN - 0147-8389
DOI - 10.1111/pace.13773
Subject(s) - asystole , medicine , cardiology , qrs complex , cardiac resynchronization therapy , heart failure , contraction (grammar) , anesthesia , ejection fraction
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?