Pathologic Evaluation of 28 Mitroflow Pericardial Valves: A 12-Year Experience

Structural valve deterioration was seen in 18 of 19 explanted valves with implant durations of at least 30 months, and is related to valve design. It appears that clinicians should carefully consider Mitroflow valve implantation in all patients, even in patients older than 65 years old, given the early presence of structural valve deterioration.