| Model Number |
11400M |
| Medical Device Problem Codes |
Break (1069); Patient Device Interaction Problem (4001); Material Split, Cut or Torn (4008)
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| Health Effect - Clinical Codes |
Anemia (1706); Hemolysis (1886); Hemolytic Anemia (2279)
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Type of Reportable Event
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Serious Injury
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Additional Manufacturer Narrative
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Customer report of mitral regurgitation was unable to be confirmed through image evaluation.One picture was reviewed.Picture showed the outflow aspect of an explanted valve.Two perforations can be observed in one of the leaflets near the sewing ring.What appear to be blood residues can be seen on the leaflets and sewing ring.What appeared to be a tissue overgrowth was observed in one of the leaflets on outflow aspect.The investigation is still in progress; therefore, a conclusion has yet to be established.A supplemental report will be submitted accordingly upon investigation completion.Edwards will continue to review and monitor all events.Trends are monitored on a the investigation is still in progress; therefore, a conclusion has yet to be established.
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Event or Problem Description
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Edwards received information that a 27mm 11400m mitral pericardial valve, implanted approximately four (4) years, was explanted due to mitral regurgitation(mr).The patient presented with hemolytic anemia and changes in urine color and symptoms of anemia.The device was explanted and replaced with a non-edwards valve, epic.Upon re-do mitral valve replacement (mvr), perforations were found in two places on the valve leaflet.No calcification was found.It was thought that the perforations had caused mr.The patient status was reported as stable condition.
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Additional Manufacturer Narrative
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Added information to h6.Image evaluation: customer report of mitral regurgitation was unable to be confirmed through image evaluation.Customer report of perforations was confirmed.One picture was reviewed.Picture showed the outflow aspect of an explanted valve.Two perforations can be observed in one of the leaflets near the sewing ring.What appear to be blood residues can be seen on the leaflets and sewing ring.What appeared to be a tissue overgrowth was observed in one of the leaflets on outflow aspect.The instructions for use (ifu) have been reviewed and no inadequacies have been identified with regard to warnings, contraindications, and the directions/conditions for the successful use of the device.The reported type of event is included in the ifu.A device history record (dhr) review was performed, and no relevant non-conformances were identified.The exact root cause of the two (2) perforations identified in image evaluation are unknown.The valve was not returned for evaluation and only one (1) image of the outflow aspect of the valve was provided by the customer.The device history record review did not identify any evidence that a manufacturing non-conformance had contributed to the reported event.There are sufficient manufacturing mitigations in place to detect leaflet imperfections that could have contributed to the reported event.While the conditions of the initial implant are unknown based on the information available, it is possible that suture abrasion from fasteners such as cor-knots placed close to the sewing cuff and wire form could have created the perforations seen in the image thus resulting in the observed mitral regurgitation.Additionally, procedural factors such as improper valve handling, aggressive use of instruments for inspection, or grasping of the valve during the initial implantation could have contributed to the perforation that is seen in the supplied images.Pannus is a non-immune inflammatory reaction of the body to the implanted prosthesis, characterized by proliferation of fibroelastic tissue and collagen, with a starting point in the suture area and subacute or chronic centripetal evolution.Pannus can have both beneficial and harmful effects depending on the amount of growth and location.A small amount of host tissue growth over the suture line is expected and is needed to form a non-thrombogenic surface and complete the healing process after device implantation.In contrast, an excessive amount of pannus growth can cause nonstructural dysfunction that may require intervention.Host tissue growth can extend onto the cusp surfaces leading to thickening of the cusps, cusp retraction or curling, leaflet immobility, and/or abnormal coaptation, potentially resulting in valvular regurgitation, elevated gradients, and/or stenosis.Based on the information available, the report of regurgitation was unable to be confirmed.However, leaflet damage and pannus were confirmed.The root cause for pannus/host tissue overgrowth is due to patient factors and is unlikely to be related to a manufacturing non-conformance.The investigation could not identify a definitive root cause for the leaflet damage.An edwards defect has not been confirmed.
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Additional Manufacturer Narrative
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Added information to b5, b7, h6.
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Event or Problem Description
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Edwards received information that a 27mm 11400m mitris resilia valve was explanted after an implanted duration of four (4) years due to mitral regurgitation (mr).There were perforations in two places on one of the valve leaflets.It was thought that the perforations had caused mr.No calcification was found.The patient presented with hemolysis, anemia and changes in urine color.The device was explanted and replaced with a non-edwards valve, epic.The patient status was reported as stable condition.
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Additional Manufacturer Narrative
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Corrected a2, d6.
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Search Alerts/Recalls
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