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Fully Endoscopic Mitral Valve Repair with Percutaneous Cannulation of Groin Vessels
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A routine de-airing method for total endoscopic robot-assisted mitral valve repair
Kazuto Miyata1, Go Watanabe2, Sayaka Shigematsu3
1Department of Anesthesia, New Heart Watanabe Institute, Hamadayama 3-19-11, Suginami-Ku, Tokyo, Japan. kmiyata0410@gmail.com.
General Thoracic and Cardiovascular Surgery
|October 30, 2022
Summary
This study presents a routine de-airing technique for robot-assisted mitral valve repair. The method effectively removes intracardiac air, ensuring patient safety during the procedure.
Area of Science:
- Cardiac Surgery
- Minimally Invasive Procedures
- Medical Device Technology
Background:
- Intraoperative water testing is crucial for mitral valve repair assessment.
- Evacuating intracardiac air can be challenging during these procedures.
Purpose of the Study:
- To describe a routine de-airing method for total endoscopic robot-assisted mitral valve repair.
- To evaluate the effectiveness of this de-airing technique.
Main Methods:
- Restricting cardiopulmonary bypass flow and drawing blood from the right ventricle to push air into pulmonary veins.
- Filling the left atrium, left ventricle, and ascending aorta with blood to clear the root cannula.
- Utilizing retrograde coronary sinus blood flow to de-air coronary arteries.
Main Results:
- The described de-airing method was routinely employed during robot-assisted mitral valve repair.
- Transesophageal echocardiography at 10 minutes post-weaning showed 99% absence of intracardiac air in the ascending aorta, left atrium, and left ventricle.
Conclusions:
- The described de-airing method is effective in removing intracardiac air during robot-assisted mitral valve repair.
- This technique enhances safety and assessment accuracy in mitral valve surgery.

