An event of stenosis and dyspnea was reported.The reported calcification could not be confirmed.The results of the investigation are inconclusive since the device was not returned for analysis.The device history record was reviewed to ensure that each manufacturing and inspection operation was performed.Based on the information received, the cause of the reported incident could not be conclusively determined; however, calcification is a known event associated with tissue heart valves.Mitral and tricuspid regurgitation was also reported from the field.
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On (b)(6) 2007, a 27mm biocor valve was implanted in the aortic position.Leading up to the explant, the patient experienced dyspnea during normal activity.The patient was diagnosed with restenosis bioprosthetic aortic valve with critical aortic stenosis and the pre-op tee confirmed mitral valve regurgitation and tricuspid valve mild regurgitation.On (b)(6) 2018, the valve was explanted.The operative report indicated the leaflets were heavily calcified with poor mobility.The device was replaced with an onyx mechanical valve.
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