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Cox-Maze IV Procedure Concomitant with Valvular Surgery In Situs Inversus Dextrocardia: A Single-Center Experience in China
Published on: February 11, 2022
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Robotic assisted cryothermic biatrial Cox-Maze
Harold G Roberts1, Lawrence M Wei1, Ankit Dhamija1
1Department of Cardiovascular and Thoracic Surgery, West Virginia University, Morgantown, West Virginia, USA.
Journal of Cardiovascular Electrophysiology
|May 10, 2021
Summary
Robotic cryothermic Cox-Maze (CM) IV offers a minimally invasive surgical ablation for atrial fibrillation (AF). This effective procedure replicates the biatrial lesion set of CM III using cryothermia.
Area of Science:
- Cardiovascular Surgery
- Minimally Invasive Procedures
- Cardiac Ablation
Background:
- Atrial fibrillation (AF) is a common arrhythmia requiring effective treatment.
- Traditional Cox-Maze (CM) procedures aim to restore sinus rhythm.
- Minimally invasive approaches are sought to improve patient outcomes and reduce surgical burden.
Purpose of the Study:
- To describe the step-by-step creation of biatrial CM III lesion sets using a robotic platform.
- To detail the technical aspects of robotic cryothermic CM IV.
- To evaluate robotic cryothermic CM IV as a surgical ablation solution for AF.
Main Methods:
- Utilized a minimally invasive robotic platform for surgical ablation.
- Employed cryothermia as the sole energy source for lesion creation.
- Focused on replicating the biatrial lesion set of the Cox-Maze III procedure.
Main Results:
- Successfully created biatrial CM III lesion sets via a robotic approach.
- Demonstrated robotic cryothermic CM IV as a single incision, single stage procedure.
- Highlighted its effectiveness for both stand-alone and concomitant AF ablation.
Conclusions:
- Robotic cryothermic CM IV is a safe and effective minimally invasive procedure.
- It reliably replicates the established biatrial lesion set of CM III.
- Offers a comprehensive surgical solution for patients with atrial fibrillation.

