The device was not returned to edwards for evaluation as it was discarded by the hospital staff.The clinical observation was unable to be confirmed.Post-operatively, the body undergoes various phases of the tissue response continuum resulting in the fibrous encapsulation of the ring.Local and systemic factors of the patient may play a role in the wound healing and inflammatory responses to biomaterials and implants.A definitive root cause cannot be determined; however, it is likely that patient related factors and the progression of the underlying valvular disease pathology contributed to the event.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 that a mitral annuloplasty ring, implanted approximately four (4) years and three (3) months, was explanted due to severe mitral stenosis and regurgitation secondary to pannus growth.This device was originally implanted at different facility due to mitral stenosis and regurgitation.At explant, the leaflet mobility was restricted by pannus which was grown over the entire patient¿s anterior cusp.The device was explanted and replaced with a smaller size same model while the patient was on bypass with no adverse patient effects reported as a result of the ring replacement.The patient status was reported as ¿under treatment¿ at icu.
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