(b)(4).The device was not returned to edwards for evaluation.The clinical observation was unable to be confirmed.Ring dehiscence may occur early or late.When it occurs in the early post-operative period, it is typically a result of an inadequate valve repair in combination with friable myocardial tissue.Late dehiscence can occur as a result of successive dilatation of cardiac structures that result from progression of disease or from endocarditis.A manufacturing related issues was not identified.A definitive root cause cannot be determined.Of note, the surgeon downsize the ring from a 34 mm to a 30 mm ring.The instructions for use (ifu) was reviewed and no inadequacies were identified with regards to warnings, contraindications, and the directions/conditions for the successful use of the device.No further corrective or preventative actions are required at this time.Edwards will continue to review and monitor all events through the use of edwards quality systems.Trends are monitored on a monthly basis and if action is required, appropriate investigation will be performed.
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Edwards received information a 34 mm tricuspid ring was explanted after an implant duration of two years and one month due to tricuspid regurgitation.Per obtain information, the tricuspid valve had several areas of dehiscence around the circumference between the annulus and the ring.The 34 mm annuloplasty ring was removed along with its sutures and the annulus was resized with a smaller 30 mm tricuspid ring.Postoperatively, the patient was weaned off from bypass without difficulty and hemodynamically stable.The patient tolerated to procedure well without complications and transferred to the cvicu in stable condition.
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