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Intravenous Disopyramide Phosphate and Ventricular Overdrive Pacing in the Termination of Paroxysmal Ventricular Tachycardia
Author(s) -
CAMM J.,
WARD D.,
WASHINGTON H.G.,
SPURRELL R.A.J.
Publication year - 1979
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.1540-8159.1979.tb05215.x
Subject(s) - disopyramide , medicine , cardiology , ventricular tachycardia , tachycardia , qrs complex , cardioversion , anesthesia , atrial fibrillation
Both antiarrhythmic drugs and bursts of rapid ventricular pacing provide alternatives to DC cardioversion for the treatment of paroxysmal ventricular tachycardia. This report considers the individual and combined success of burst ventricular pacing and intravenous disopyramide phosphate in the treatment of 11 examples of paroxysmal ventricular tachycardia. Rapid ventricular pacing, at a rate of up to 50 beats/min faster than the tachycardia rate terminated 7 of the tachycardias. Intravenous disopyramide resulted in increased tachycardia cycle length (342 ± 34 ms‐385 ± 56 ms), increased QRS complex width (147 ± 42 ms‐180 ± 41 ms) and termination of 8 of the tachycardias. The remaining 3 tachycardias could be terminated by bursts of ventricular pacing following the infusion of disopyramide. Of these, 2 could not be terminated prior to disopyramide. The use of both techniques allowed the extinction of all 11 tachycardias and prevented the need to proceed to DC conversion.