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Updated: Aug 10, 2026

Robotic Ablation of Atrial Fibrillation
Published on: May 29, 2015
[Surgical radiofrequency catheter ablation of accessory pathways in Ebstein's anomaly]
Leonardo Rivera Rodríguez1, Pedro Iturralde, Juan Calderń-Colmenero
1Servicio de Cardiología Pediátrica y Electrofisiología, Instituto Nacional de Cardiología Ignacio Chávez, Tlalpan, México, DF. leonardoriv@hotmail.com
Insights
Surgical ablation therapy is a safe and effective treatment for patients with Ebstein anomaly and accessory pathways causing atrioventricular reentrant tachycardia. This study found a 100% success rate with no complications.
Area of Science:
- Cardiology
- Electrophysiology
- Congenital Heart Disease
Context:
- Ebstein anomaly is a rare congenital heart condition.
- Atrioventricular reentrant tachycardia (AVRT) is a common arrhythmia associated with Ebstein anomaly.
- Accessory pathways are frequently identified in patients with Ebstein anomaly and AVRT.
Purpose:
- To evaluate the safety and efficacy of surgical ablation for accessory pathways in patients with Ebstein anomaly and AVRT.
Summary:
- Thirteen patients with Ebstein anomaly and AVRT underwent surgical radiofrequency catheter ablation or surgical section.
- All accessory pathways were located in the tricuspid ring, predominantly on the right lateral free wall.
- Surgical ablation achieved 100% success with no observed complications.
Impact:
- Surgical ablation therapy is a safe and effective treatment option for accessory pathways in Ebstein anomaly patients.
- This approach offers a high success rate and minimal risk, improving patient outcomes.
Abstract:
Thirteen patients with Ebstein anomaly and atrioventricular reentrant tachycardia and at least one accessory pathway were included in this study. One accessory pathway in 7 (53.8%) patients and multiple accessory pathways in 6 (46.1%) were found. Mahaim accessory pathway was observed in 5 (38.4%) patients. A total of 22 accessory pathways was found, 2 (9%) were concealed. In all (100%), the accessory pathways were located in the tricuspid ring. The most frequent regions were right lateral free wall with 11 (50%) and 5 right posteroseptal (22.7%). Ten patients underwent surgical radiofrequency catheter ablation and three subjected to surgical section. We obtained success in 100%. No complications were observed during the procedures. In conclusion, surgical ablation therapy in patients with accessory pathways and Ebstein's anomaly is safe and effective.
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