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Effects of suture position on left ventricular fluid mechanics under mitral valve edge-to-edge repair.
- Source :
-
Bio-medical materials and engineering [Biomed Mater Eng] 2014; Vol. 24 (1), pp. 155-61. - Publication Year :
- 2014
-
Abstract
- Mitral valve (MV) edge-to-edge repair (ETER) is a surgical procedure for the correction of mitral valve regurgitation by suturing the free edge of the leaflets. The leaflets are often sutured at three different positions: central, lateral and commissural portions. To study the effects of position of suture on left ventricular (LV) fluid mechanics under mitral valve ETER, a parametric model of MV-LV system during diastole was developed. The distribution and development of vortex and atrio-ventricular pressure under different suture position were investigated. Results show that the MV sutured at central and lateral in ETER creates two vortex rings around two jets, compared with single vortex ring around one jet of the MV sutured at commissure. Smaller total orifices lead to a higher pressure difference across the atrio-ventricular leaflets in diastole. The central suture generates smaller wall shear stresses than the lateral suture, while the commissural suture generated the minimum wall shear stresses in ETER.
- Subjects :
- Aorta pathology
Diastole
Hemodynamics
Humans
Mitral Valve Insufficiency surgery
Models, Cardiovascular
Pressure
Shear Strength
Stress, Mechanical
Sutures
Ventricular Pressure
Cardiovascular Surgical Procedures
Heart Ventricles physiopathology
Mitral Valve pathology
Mitral Valve surgery
Mitral Valve Insufficiency physiopathology
Suture Techniques
Subjects
Details
- Language :
- English
- ISSN :
- 1878-3619
- Volume :
- 24
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Bio-medical materials and engineering
- Publication Type :
- Academic Journal
- Accession number :
- 24211894
- Full Text :
- https://doi.org/10.3233/BME-130795