• C P Reddy, J C Sartini, and C S Kuo.
• J Electrocardiol. 1982 Oct 1; 15 (4): 403-10.

AbstractA case with Type A Wolff-Parkinson-White pattern and recurrent sustained ventricular tachycardia is presented. Because of ventricular pre-excitation, electrocardiographic clues suggestive of ventricular tachycardia were ignored and the diagnosis of supraventricular tachycardia with conduction to the ventricles over the accessory pathway was made during each admission to the hospital. Ventricular tachycardia was suspected only when programmed stimulation studies performed twelve years after initial presentation and many hospitalizations failed to induce a tachycardia with a QRS pattern similar to that of spontaneously occurring tachycardia. The diagnosis of ventricular tachycardia was later confirmed by intracardiac recordings made during a spontaneous episode of tachycardia. Tachycardia was unresponsive to all conventional antiarrhythmic agents but was controlled with amiodarone. The differential diagnosis of wide QRS complex tachycardia in patients with Wolff-Parkinson-White syndrome, the implications of correctly diagnosing the tachycardia, and the usefulness of intracardiac electrophysiologic studies in differentiating supraventricular tachycardia with aberrant conduction from ventricular tachycardia are discussed.

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