On (b)(6) 2021, a perceval valve pvs23 implant attempt occurred.After the implant the leaflets appeared stiff.The valve was explanted and replaced with a perimount valve size 21.Based on additional information provided, the valve collapsing and preparation was performed as usual, no anomalies were detected.The valve positioning in the dual collapser occurred with no problem and the valve was collapsed normally.The valve was stored in saline solution prior to the implant.After the valve implant and declamp, the echo showed that the valve leaflets were "frozen" (i.E.Blocked in the open position).The valve was not closing and the echo findings showed a massive aortic insufficiency.The valve appeared well positioned.The bypass was restarted and the valve inspected.The leaflets appeared not to close properly and were immobile.No cusp tears were identified, but the leaflets appeared thickened.There was no adverse event for the patient who was already discharged after finally implanting perimount valve 21 instead.
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