Manuacturer was informed that on 22 nov 2023, a perceval plus valve size s was implanted and upon coming off of pump, valve appeared to have buckled onto itself in the echo.It was reported that the valve was too large for the annulus.As such, the valve was explanted, and a stented valve was implanted.Reportedly, patien's annulus was 19.8 per the ct analysis report.As reported, patient ultimately was placed on ecmo.No further information is available.
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The manufacturing and material records for the perceval plus heart valve and stent, model # pvf-s, s/n # (b)(6), as they pertain to the reported event, were retrieved and reviewed by the manufacturer¿s quality engineering.The results confirmed that this valve satisfied all material, visual, and performance standards required for a (model # pvf-s) perceval plus heart valve at the time of manufacture and release.The valve has been returned to the manufacturer.After decontamination, the valve was visually inspected and, except a slight ovalization / deformation, no macroscopic anomalies, and/or pre-existing defects were observed.The replication of collapsing phases was performed using the returned valve pvf-s and a demo accessory kit, in order to attempt to reproduce the reported event.No problems were encountered in the collapsing phase, and the replication has been completed without problem.No problems were encountered during the deployment in silicon aortic roots #21, and the ballooning phase, and the sealing at the annulus level is guaranteed as visible in attached pictures thus, the valve remained fixed within the annulus.Then, inserting some water in the aortic roots from the outflow side, no paravalvular leaks were observed during the simulation.Considering the static conditions of the test, the water level remained stable under the leaflets free edge.Based on the performed analyses, it is possible to exclude the relationship between the reported issue and the returned device quality.Furthermore, from the document review performed, no manufacturing deficiencies were noted.Based on the information provided (i.E., ''the valve was too large for the annulus''), the cause of the reported event is most probably related to oversizing.
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