Patient prosthesis mismatch
PPM was defined as an iEOA < 0,85
cm2/m2. An iEOA between 0,85
cm2/m2 and 0,65
cm2/m2 was considered moderate PPM,
while an iEOA < 0,65
cm2/m2 was considered severe PPM.
PPM calculation was performed using the EOA value provided by the
manufacturer for every prosthesis divided by the patient’s body surface
area (BSA). Patients with mechanical and biological prostheses were
compared according to the presence (iEOA < 0,85
cm2/m2) or absence (iEOA
> 0,85 cm2/m2) of PPM.