Effect of Prosthesis-Patient Mismatch on Long-Term Survival With Mitral Valve Replacement: Assessment to 15 Years

Prosthesis-patient mismatch is not a predictor of overall mortality to 15 years after MVR regardless of the category of effective orifice area index. The preoperative variable, pulmonary hypertension, influences overall mortality in the presence of mild-to-moderate and severe prosthesis-patient mismatch in the survival analysis.