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Related Experiment Video

Updated: Jun 2, 2026

Use of a Percutaneous Ventricular Assist Device/Left Atrium to Femoral Artery Bypass System for Cardiogenic Shock

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A long slanted transseptal accessory pathway.

Hui-Min Wang¹, Tsu-Juey Wu, Yu-Cheng Hsieh

¹Division of Cardiology, Veterans Hospital Pu-Li, Nantou County, Taiwan, ROC.

Journal of the Chinese Medical Association : JCMA

|May 10, 2011

Summary

This study details the successful ablation of a left-side accessory pathway in a patient with Wolff-Parkinson-White syndrome. The ablation was performed from the right posterior tricuspid annulus due to a long, slanted transseptal pathway.

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Area of Science:

Cardiology
Electrophysiology
Medical Devices

Background:

Wolff-Parkinson-White syndrome is characterized by an accessory electrical pathway in the heart.
Accessory pathways can lead to supraventricular tachycardia and arrhythmias.
Catheter ablation is a primary treatment for symptomatic accessory pathways.

Observation:

A 63-year-old male patient with Wolff-Parkinson-White syndrome presented for accessory pathway ablation.
Intracardiac electrogram during tachycardia identified a left-sided accessory pathway.
The pathway was noted to be a long, slanted transseptal type (2.2 cm).

Findings:

Successful ablation of the left-sided accessory pathway was achieved.
The ablation target site was the right posterior tricuspid annulus.
The anatomical characteristics of the pathway influenced the ablation strategy.

Implications:

This case highlights the successful management of a complex accessory pathway in Wolff-Parkinson-White syndrome.
Effective ablation from the right posterior tricuspid annulus is feasible for specific pathway morphologies.
Accurate electrophysiological mapping is crucial for guiding ablation in challenging cases.