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It was reported by the field clinical specialist that during a pulmonic transcatheter valve replacement with a 20 mm sapien 3 ultra resilia valve the physician wanted to post dilate the valve and used a 20mm atlas gold to do the inflation.The physician inflated the atlas to 12 14 atm twice and the post angiogram showed central pulmonary regurgitation.The physician decided to also look with intracardiac echocardiography (ice) and mild regurgitation was noted as well as the potential for a stuck leaflet.They were able to confirm two of the leaflets were functioning appropriately.The physician attempted to use a pigtail to dislodge the stuck leaflet but was unsuccessful.There is a possibility that during post dilation of the valve with the 22mm atlas, the valve was over-dilated, forcing one of the leaflets to get stuck and not function properly.The valve position was 100/0 within a palmaz stent, and this setup was placed within a conduit.The physician then determined to do a valve in valve placing a second 20mm sapien 3 ultra resilia valve to fix the issue.The new valve was implanted successfully and there was no pulmonary regurgitation seen.
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A supplemental mdr is being submitted due to engineering evaluation findings.Sections g6, h2, h6: component code, type of investigation, investigation findings, investigation conclusions and conclusions in this section have been updated.The events reported are anticipated in the risk management documentation for transcatheter heart valve procedures.A previous investigation into this type of event is captured in an edwards lifesciences technical summary and applies to this complaint.Additional assessment of the failure modes is not required at this time.The device was not returned for evaluation.Due to the unavailability of the complaint device, engineering was unable to perform any visual inspection, functional testing, or dimensional analysis.Per the technical summary, the instructions for use (ifu), training manuals and current risk mitigations have been reviewed.No inadequacies have been identified with regards to warnings, contraindications, and the directions/conditions for the successful use of the device.Through extensive complaint investigations, central regurgitation events post-deployment with or without report related to leaflet mobility for the s3, s3u, and s3ur valves have not been associated with device malfunctions or manufacturing nonconformances.Rather, the root cause for these events have historically been due to patient and/or procedural factors (malposition, slow recovery of blood flow, leaflet impingement due to calcification or guidewire, over-inflation, post-dilation, and/or under-expansion).The complaints of central regurgitation and leaflet motion restricted-in patient were confirmed empirically.Available information suggests procedural factors (post-dilation with non-ew balloon) likely contributed to the event as it was reported that ''there is a possibility that during post dilation of the valve with the 22mm non-edwards balloon, the valve was over-dilated forcing one of the leaflets to get stuck and not function properly.'' in this case, the 20mm thv was post-dilated with a 22mm non-ew balloon, potentially leading to over-expansion of the thv as reported.Deploying the valve using more than the prescribed volume or attempting a second inflation may result in inability for the valve leaflets to properly function.The increase in valve diameter due to overinflation or post dilation may prevent proper motion of the thv leaflets resulting in thv regurgitation.Additionally, per the training manual, central regurgitation is an associated risk of post-dilation.Complaint histories for all reported events are reviewed against trending control limits monthly, and any excursions above the control limits are assessed and documented as part of this monthly review.Since no edwards product defects or labeling deficiencies were identified, no corrective or preventative action is required.
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