Why the study?
Does procainamide control ventricular rate and prevent spontaneous circus tachycardia in a patient with Wolff-Parkinson-White syndrome?
Does procainamide control ventricular rate and prevent spontaneous circus tachycardia in a patient with Wolff-Parkinson-White syndrome?
Procainamide successfully controlled ventricular rate and prevented spontaneous circus tachycardia in a patient with WPW syndrome, despite facilitating its induction via atrial stimulation.
Procainamide may control ventricular rate without spontaneous tachycardia in WPW; single case leaves open net benefit and proarrhythmic risk.
A patient with Wolff-Parkinson-White syndrome was disabled by rapid ventricular rates during atrial arrhythmia and by periods of asystole. Circus tachycardia was induced by atrial stimulation only after the administration of procainamide. Nevertheless, treatment with this drug controlled the ventricular rate and spontaneous circus tachycardia did not occur.
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J S Geddes (1977) studied this question.
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