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Ventricular Fibrillation Following Elective Cardioversion in a Patient with Permanent Pacemaker
Author(s) -
VERA ZAKAUDDIN,
BOMMER WILLIAM J.,
DESAI JAWAHAR M.
Publication year - 1990
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/j.1540-8159.1990.tb02068.x
Subject(s) - medicine , cardioversion , cardiology , atrial fibrillation , ventricular fibrillation , electrical cardioversion , anesthesia
Elective cardioversion was undertaken in a patient with a VVI pacemaker and atrial tachyarrhythmia after converting the pacemaker to a VOO mode of function. The cardioverter output energy was unwittingly synchronized to the pacemaker output pulses that were falling randomly in various portions of the cardiac cycle. This resulted in the cardioverter DC shock being discharged in the ST segment of (he native QRS with consequent ventricular fibrillation.