Related Experiment Video
Updated: Feb 11, 2026
07:42
An Image Guided Transapical Mitral Valve Leaflet Puncture Model of Controlled Volume Overload from Mitral Regurgitation in the Rat
Published on: May 19, 2020
7.6K
Mitral regurgitation: anatomy is destiny
Constantine L Athanasuleas1, Alfred W H Stanley2, Gerald D Buckberg3
1Section of Cardiothoracic Surgery, Department of Surgery, University of Alabama at Birmingham, Birmingham, AL, USA.
Summary
Mitral regurgitation (MR) can lead to heart failure through left ventricular remodeling. A
Area of Science:
- Cardiology
- Cardiac Surgery
- Biomedical Engineering
Background:
- Mitral regurgitation (MR) involves complex interactions between the mitral valve and left ventricle (LV).
- Progressive MR causes left ventricular (LV) remodeling, leading to a globular shape and potential heart failure.
- LV end-systolic volume index > 55 ml/m2 is linked to heart failure and arrhythmias, persisting even after annular MR correction.
Purpose of the Study:
- To describe the process of left ventricular remodeling in mitral regurgitation.
- To summarize interventions that address LV volume reduction and shape restoration.
- To introduce a 'valve/ventricle' approach for comprehensive MR management.
Main Methods:
- Review of the pathophysiology of MR-induced LV remodeling.
- Analysis of current and evolving interventional strategies for MR.
- Conceptual framework development for the 'valve/ventricle' approach.
Main Results:
- MR progression leads to LV dilation and loss of its elliptical shape, progressing to heart failure.
- Isolated annular correction of MR may not reverse adverse LV remodeling.
- The 'valve/ventricle' approach targets both the mitral apparatus and ventricular remodeling.
Conclusions:
- Effective MR management requires addressing both the valve and the remodeled ventricle.
- Restoring the LV's elliptical shape is crucial for preventing heart failure and arrhythmias.
- The 'valve/ventricle' approach offers a more holistic strategy for treating advanced MR.
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