On (b)(6) 2021, a perceval valve pvs21 was implanted and explanted on the same day.The patient had a type 1 bicuspid valve.Valsalva sinus had a normal shape.After the aortic incision, the shape was such that there was no boundary between the noncoronary cusp and the right coronary cusp.Also, nadir was not seemed uniform in height.After the s size perceval was placed, it was visually confirmed that the valve was slightly tilted.After de-clamping, perivalvular leakage (trace to mild) occurred.Also, the right coronary cusp did not open or close at all.The device was removed.Since the patient had a bicuspid valve, it was judged that the same event would occur even if the sutureless valve was implanted again.Thus, a conventional valve (unknown details) was implanted.
|
The device involved in the reported event was returned to the manufacturer for investigation.The valve received has no pre-existing defects.In general, it is still in good condition.The height of each leaflet has been verified by means the specific tool, and it resulted in conformity.The valve appeared to meet the specifications required for a perceval valve model pvs s / 21.The manufacturing and material records for the perceval heart valve, model #icv1208, 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 # icv1208 perceval heart valve at the time of manufacture and release.Based on the investigation performed, the reported event cannot be explained by any factor intrinsic to the returned device, as no malfunctions nor elements of non conformity were detected.As reported, the valve was not correctly positioned after the deployment (i.E.''it was visually confirmed that the valve was slightly tilted'').The root cause of the reported event of device malposition and subsequent paravalvular leak can be traced to the patient's peculiar anatomy (i.E.Bicuspid valve type 1) which led the surgeon to a change of surgical approach (use of the conventional valve).
|