Additional manufacturer narrative: patient prosthesis mismatch (ppm) is present when the effective orifice area of the inserted prosthetic valve is too small in relation to body size.Its main hemodynamic consequence is to generate higher than expected gradients through a normally functioning prosthetic valve.Ppm has been shown to be associated with worse hemodynamic function, less regression of left ventricular hypertrophy, more cardiac events, and lower survival.The device was not returned for evaluation, as it remains implanted.The root cause of this event cannot be conclusively determined.However, it is likely that patient related and/or procedural factors contributed to the event.The device history record (dhr) was not reviewed as the reported event does not allege a malfunction that could be related to a manufacturing deficiency and/or one was not confirmed through investigation.Edwards will continue to review and monitor all events.Trends are monitored on a monthly basis and if action is required, appropriate investigation will be performed.
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It was reported that a 23mm aortic valve was disabled via a valve-in-valve procedure after an implant duration of 16 years, 8 months due to stenosis and severe regurgitation secondary to patient-prosthesis mismatch.A 23mm transcatheter valve was implanted.Patient was discharged home on pod #1.Per medical records, the severe aortic prosthetic regurgitation with elevated gradients was noted after an approximate implant duration of 9 years.As reported, the surgical valve performed as intended.
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