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Updated: Jul 1, 2025

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Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
Published on: February 26, 2013
33.4K
[Off-pump Totally-endoscopic Surgery for Atrial Fibrillation]
1Department of Cardiovascular Surgery, Yodogawa Christian Hospital, Osaka, Japan.
Kyobu Geka. the Japanese Journal of Thoracic Surgery
|March 9, 2024
Summary
The totally thoracoscopic maze (TT-maze) surgery offers a minimally invasive approach for atrial fibrillation, managing the left atrial appendage and performing surgical ablation simultaneously for embolism prevention.
Area of Science:
- Cardiovascular Surgery
- Minimally Invasive Procedures
- Electrophysiology
Context:
- Atrial fibrillation management
- Surgical ablation techniques
- Left atrial appendage (LAA) management
Purpose:
- To describe the off-pump, totally-endoscopic surgical procedure for atrial fibrillation, also known as the Wolf-Ohtsuka procedure or totally thoracoscopic maze (TT-maze) surgery.
- To highlight the advantages of TT-maze surgery over existing treatments like WATCHMAN and catheter ablation.
- To detail the procedural tips and techniques for this minimally invasive approach.
Summary:
- The totally thoracoscopic maze (TT-maze) surgery is a minimally invasive procedure for atrial fibrillation, involving surgical ablation and left atrial appendage management.
- This technique allows for quick patient recovery with minimal incisions, suitable for LAA regardless of size or presence of thrombus.
- Compared to WATCHMAN and catheter ablation, TT-maze offers simultaneous embolism prevention through combined ablation and LAA management without endocardial contact.
Impact:
- Provides a less invasive surgical option for atrial fibrillation patients.
- Enhances stroke prevention strategies by addressing both ablation and left atrial appendage management.
- Offers potential benefits for patients unsuitable for other procedures due to LAA characteristics.

