Related Experiment Video

Updated: Aug 14, 2026

Ablation of Ischemic Ventricular Tachycardia Using a Multipolar Catheter and 3-dimensional Mapping System for High-density Electro-anatomical Reconstruction
06:57

Ablation of Ischemic Ventricular Tachycardia Using a Multipolar Catheter and 3-dimensional Mapping System for High-density Electro-anatomical Reconstruction

Published on: January 31, 2019

[RF ablation in a patient with recurrent post-infarction ventricular tachycardia requiring multiple

Jacek Kuśnierz1, Lukasz Szumowski, Lukasz Pastwa

  • 1Klinika Zaburzeń Rytmu Serca, Instytut Kardiologii, ul. Alpejska 42, 04-628 Warszawa.

Kardiologia Polska
|December 20, 2005
PubMed

Insights

A patient with a history of heart attack and ventricular tachycardia experienced device shocks. Radiofrequency ablation successfully treated the life-threatening arrhythmias.

Area of Science:

  • Cardiology
  • Electrophysiology
  • Medical Devices

Background:

  • A 51-year-old male with myocardial infarction (MI) and recurrent ventricular tachycardia (VT) history.
  • Received prophylactic implantable cardioverter-defibrillator (ICD) for complex ventricular arrhythmias and reduced ejection fraction.

Observation:

  • Patient experienced palpitations and ICD shocks during physical activity.
  • ICD interrogation revealed appropriate shocks for slow VT (160 bpm).

Findings:

  • Reprogramming the ICD with antitachycardia pacing (ATP) algorithms resulted in proarrhythmia and accelerated VT.
  • Patient received 37 ICD shocks within hours due to ATP-induced VT acceleration.

Implications:

  • This case highlights the potential proarrhythmic effect of ATP in certain VT morphologies.
  • Successful radiofrequency (RF) ablation using CARTO electro-anatomical mapping provided a definitive treatment for refractory VT.

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