An annuloplasty ring, implanted in the mitral position four years and six months, was explanted due to severe pannus ingrowth and stenosis.The explanted device was replaced with a pericardial valve.It was further reported that tests confirmed annular pannus with fibrosis and patchy chronic inflammation.
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(b)(4).The device was not returned to edwards for analysis.Device history record (dhr) review was completed and this device passed all manufacturing and sterilization inspections.Without the return of the device, edwards is unable to confirm the clinical observation.Edwards will continue to review and monitor all events.Trends are monitored on a (b)(4) basis and if action is required, appropriate investigation will be performed.
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