Mitral paravalvular leaks (PVLs) commonly occur in patients with prosthetic valves. Paravalvular defects may be clinically inconsequential and may aggravate hemolysis or cause heart failure through regurgitation. Accordingly. patients may eventually require intervention such as redo surgery or a transcatheter closure of the defects. https://www.homehardware4ues.shop/product-category/screws/