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The right ventricular tachycardias.

S L Pinski1

  • 1Section of Cardiology, Rush Medical College and Rush-Presbyterian-St. Luke's Medical Center, Chicago, IL 60025, USA. spinski@rush.edu

Journal of Electrocardiology
|March 27, 2001
PubMed
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Radiofrequency catheter ablation effectively treats many right ventricular tachycardias, including arrhythmogenic right ventricular dysplasia and idiopathic VT. Bundle branch reentry and atriofascicular fibers also respond well to ablation, offering curative options.

Area of Science:

  • Cardiology
  • Electrophysiology
  • Cardiac Surgery

Background:

  • Tachycardias originating from or utilizing right ventricular structures often present with a left bundle branch block pattern.
  • These arrhythmias include arrhythmogenic right ventricular dysplasia, idiopathic right ventricular tachycardia, bundle branch reentry, and atriofascicular (Mahaïm) fiber-mediated tachycardias.

Purpose of the Study:

  • To review the origins and characteristics of various tachycardias involving the right ventricle.
  • To discuss the efficacy of radiofrequency catheter ablation as a primary treatment modality for these conditions.

Main Methods:

  • Review of literature on right ventricular tachycardias and their ablation.
  • Analysis of electrophysiological properties and anatomical substrates of different VT types.

Related Experiment Videos

  • Evaluation of treatment outcomes for radiofrequency catheter ablation.

    • Main Results:

    • Idiopathic right ventricular tachycardia, often from the outflow tract, shows >90% ablation success.
    • Bundle branch reentry tachycardias can be cured by ablating the right bundle branch.
    • Atriofascicular fibers are ablated at the tricuspid annulus.

    Conclusions:

    • Radiofrequency catheter ablation is a highly successful and curative treatment for many right ventricular tachycardias.
    • Understanding the specific circuit is crucial for targeted ablation and successful outcomes.