Patient Prosthesis Mismatch

Abstract Concept of patient prosthesis mismatch came into existence from 1978 onward when Rahimtoola first defined it as “mismatch can be considered to present the effective prosthetic valve area, after insertion patient, is less than that a normal human valve.” Patient produces higher expected pressure gradient through normally functioning valve. Since ball caged mechanical in descending aorta by Dr. Charles Hufnagel 1952, had undergone tremendous improvement terms design, hemodynamics, durability, and thrombogenicity. Despite these marked changes valves are still subjected inherent complications.