Journal Home
Search for

Articles in Press

Return to articles in press list

Repetitive polymorphic ventricular tachycardia initiated by phase 4 block in the His-Purkinje system

Jose' Dizon, MDCorresponding Author Informationemail address, Daniel Wang, MD, Alan Vainrib, MD

Received 3 November 2009 published online 25 January 2010.
Corrected Proof

Abstract 

We report a case of a patient who developed repetitive episodes of polymorphic ventricular tachycardia with a stereotypical pattern of initiation. A premature atrial complex would result in a brief pause followed by left bundle branch block aberrancy. Ventricular bigeminy would ensue followed by episodes of polymorphic ventricular tachycardia, some requiring cardioversion. We postulate that delay within the His-Purkinje system initiated by phase 4 block was proarrhythmic in this patient.

Division of Cardiology, Department of Medicine, Columbia University Medical Center Columbia University, New York, NY, USA

Corresponding Author InformationCorresponding author. Division of Cardiology, Department of Medicine, Columbia University Medical Center Columbia University, 222 Westchester Ave., White Plains, NY 10604, USA.

 No conflict of interest or financial support to disclose.

PII: S0022-0736(09)00638-4

doi:10.1016/j.jelectrocard.2009.12.011