Electrophysiologic Mechanisms of Polymorphic Ventricular Tachycardia/Torsade de Pointes in the Presence of Normal or Long QT

  • G. Turitto
  • N. El-Sherif
Conference paper


Torsade de pointes (TdP) is an ear-pleasing term that describes an eye-catching pattern of polymorphic ventricular tachycardia (PVT) with continually changing morphology of the QRS complexes that seem to twist around an imaginary base- line [1]. The quasi-musical term and the intriguing ECG pattern have caught the attention of electrophysiologists for years and have been, to some extent, a dri- ving force behind the recent focused interest in the role of genetics and ion chan- nelopathy in cardiac arrhythmias. More importantly, this is helping to refocus attention on the role of dispersion of ventricular repolarization in the genesis of malignant ventricular tachyarrhythmias [2].


Brugada Syndrome Right Bundle Branch Block Ventricular Premature Beat Arrhythmogenic Right Ventricular Dysplasia Idiopathic Ventricular Fibrillation 
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Copyright information

© Springer-Verlag Italia 2000

Authors and Affiliations

  • G. Turitto
    • 1
    • 2
  • N. El-Sherif
    • 1
    • 2
  1. 1.Cardiology Division, Department of MedicineState University of New YorkBrooklynUSA
  2. 2.Health Science Center and Veterans Affairs Medical CenterBrooklynUSA

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