Evaluating The Effect Of Left Ventricular Function After Mistral Valve Replacement With Preservation Of The Posterior Leaflet By Ultrasonography

Evaluating the effect of left ventricular function after mistral valve replacement with preservation of the posterior leaflet by ultrasonographyBackground:mitral valve replacement (MVR) is an open heart surgical procedure in which a patient's mitral valve is replaced by a different valve. A mitral valve replacement/repair is performed to treat severe cases of mitral valve prolapse, heart valve stenosis, or other valvular diseases. Mitral valve replacement with subvalvular preservation (MVRP) is applied in clinic based on the envolved anatomy and physiology of the mitral valve and annulus.Objectives:Echocardiography applied to the evaluation of left ventricular function in patients with rheumatic heart disease (RHD). Parameters were assessed and compared in patients underwent MVR with and without subvalve preservation.Methods:Two-domensional echocardiography and Color Doppler (iE33 Philip) were performed in 65 RHD patients with mitral insufficiency and stenosis: 35 underwent MVRP and 30 underwent MVP before and after operations. Parameters that assessed left ventricular function including ejection fraction (EF), fractional shortening (FS), left ventricular internal diameter in diastole and systole ( LVEDd) (LVEDs) , left ventricular volume in end diastole and end systole (LVEDV) (LVESV) and left atrium diameter (LAD) were measured. Results There were no distinct difference of functional parameters either in patients with MVR or with MVRP. LVEDd, LVEDs and LAD decreased distinctly both in patients with MVR and MVRP after performing operations. There were significant changes of left ventricular functions with respect to LVedd, LVeds and LAD after 3 months in patients with MVRP and 6 months in patients with MVR. Left ventricular function increased with stable heamodynamics.Conclusions:MVRP is more advantageous to repair and improve the left ventricular functions and play an important role in maintaining the functions and morphology of left ventricular. Its feasibility and benefit is evident in MVRP due to the recovery of left ventricular geometry and reducing ventricular remodeling. Echocardiography can be performed easily, quickly and safely with respect to both in diagnosis, treatment and prognosis-making.