Impact of Patient-Prosthesis Mismatch on Long-term Outcomes After Aortic Valve Replacement

Patient-prosthesis mismatch (PPM) after aortic valve replacement potentially affects the outcome after the operation. This study sought to determine whether PPM has an impact on long-term mortality and reoperation rates. We included 645 patients who underwent biologic aortic valve replacement between 2000 and 2007. Based on echocardiographic examinations at postoperative month 6, the incidence of PPM was determined according to an indexed effective orifice area .2). In our study with directly measured effective orifice area, PPM was only marginally related to long-term survival and was not statistically significantly associated with the risk of reintervention. [Display omitted]