MRCP UK EXAMINATIONS

Detailed explanation-1: -In conclusion, the bovine valve is superior in its complication and haemodynamic profiles. Both bovine and porcine valves have comparable results with regard to the mortality, postoperative functional status and valve durability.

Detailed explanation-2: -5 Stentless bioprosthetic valves. Stentless valves are used in the aortic and pulmonary valve positions either in a sub-coronary position or as a full root replacement. The lack of struts to support the leaflets allows for a greater effective orifice area.

Detailed explanation-3: -Tissue heart valve replacements, also known as biological or bioprosthetic valves, are harvested from pigs (porcine heart valves) or constructed from the tissue sac (the pericardium) surrounding the heart of a cow (bovine).

Detailed explanation-4: -However, compared with mechanical prostheses, bioprosthetic valves have limited durability, particularly when used in younger patients, and current Guidelines therefore recommend mechanical valve prostheses in patients below 65 years of age.