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Related Experiment Videos

[Rhythm and conduction disorders immediately after ventricular fulguration].

M Baraka1, J Tonet, G Fontaine

  • 1Service de rythmologie, hôpital Jean-Rostand, Ivry.

Archives Des Maladies Du Coeur Et Des Vaisseaux
|March 1, 1988
PubMed
Summary

Electrode catheter ablation for refractory ventricular tachycardia (VT) can cause cardiac rhythm or conduction disorders in 50% of patients. These complications are often transient and manageable with stimulation or defibrillation.

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Area of Science:

  • Cardiology
  • Electrophysiology

Context:

  • Ventricular tachycardia (VT) poses a significant clinical challenge, especially when refractory to medical management.
  • Endocavitary electrode catheter ablation is an established therapeutic option for drug-resistant VT.

Purpose:

  • To evaluate the complications of endocavitary electrode catheter ablation in patients with refractory ventricular tachycardia.
  • To assess the incidence and nature of cardiac rhythm and conduction disorders following ablation procedures.

Summary:

  • This study involved 44 patients undergoing 73 sessions of catheter ablation for refractory VT, including various etiologies like post-infarction VT and arrhythmogenic right ventricular dysplasia.
  • A total of 235 shocks were delivered, with 49% complicated by dysrhythmia or conduction disorders. Notably, ablations performed during VT episodes increased arrhythmia risk.

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  • Observed complications included atrioventricular blocks, bundle branch blocks, and sinus bradycardia, most of which were transient.

    • Impact:

    • Electrode catheter ablation for VT can lead to transient cardiac rhythm and conduction disturbances in approximately 50% of cases.
    • These complications are generally manageable through appropriate interventions like stimulation or defibrillation.
    • The findings underscore the importance of careful patient selection and monitoring during VT ablation procedures.