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Transatrial atrioventricular valve testing in the beating, fully loaded heart
1Research Department, Kokura Memorial Hospital, Kitakyushu-shi, Japan.
Insights
This study presents a novel technique for visually inspecting atrioventricular valves in a beating heart. The method ensures safe, real-time assessment of mitral and tricuspid valve function during cardiac surgery.
Area of Science:
- Cardiac Surgery
- Cardiovascular Research
- Surgical Techniques
Background:
- Visual inspection of atrioventricular valves is crucial for assessing cardiac function.
- Existing methods may have limitations in evaluating valve function in a beating heart.
- The mitral and tricuspid valves play vital roles in maintaining unidirectional blood flow.
Purpose of the Study:
- To describe a safe and effective technique for the visual inspection of atrioventricular valves.
- To enable real-time assessment of valve function in a beating, loaded ventricle.
- To provide a method for evaluating both mitral and tricuspid valve integrity.
Main Methods:
- A technique involving reestablishing heartbeat with a cross-clamped aorta and venting air.
- Ventricular filling via an arterial return line through a 6-mm tube.
- Snaring the pulmonary artery to facilitate right ventricle filling for tricuspid valve assessment.
Main Results:
- The described technique allows for safe visual inspection of atrioventricular valve function.
- The method is applicable to both the left (mitral) and right (tricuspid) ventricles.
- The beating, loaded, non-ejecting ventricle model facilitates functional valve assessment.
Conclusions:
- This novel technique offers a reliable approach for intraoperative atrioventricular valve evaluation.
- The method enhances the ability of surgeons to assess valve function in real-time.
- This technique contributes to improved patient outcomes in cardiac surgery.
Abstract:
A detailed technique is described to safely inspect visually the function of the atrioventricular (mitral, common atrioventricular, or tricuspid) valve in the beating, fully loaded, but not ejecting left or right ventricle. The heartbeat is reestablished while the ascending aorta is kept cross-clamped and air from the ascending aorta is vented out. The left or right ventricle is filled via a 6-mm internal diameter tube derived from the arterial return line. To allow filling of the right ventricle for tricuspid valve evaluation, the pulmonary artery is snared down in addition.