Objectives In the present study we investigated whether preservation of both leaflets (anterior and Posterior with subvalvular apparatus) is superior to preservation of the posterior leaflet Alone. Patients and Methods 30 patients who underwent mitral valve replacement in our institute were divided into 2 groups: MVR-C (n=16). in whom both leaflets were preserved. and MVR-P (n=14). https://herbsdailyes.shop/product-category/b2-vitamins-riboflavin/