(b)(4).The results of the investigation are inconclusive since the device remains implanted.Our investigation was limited to the review of the device history record, which showed that each manufacturing and inspection operation was performed and indicated complete in accordance with sjm specifications and procedures.Based on the information received, the cause of the reported incident could not be conclusively determined.
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A patient with a history of hyperthyroidism participating in the trifecta durability study was implanted with a 25mm trifecta valve on (b)(6) 2011.On (b)(6) 2011, symptoms required the patient to undergo a cerebral ct which was negative for bleeding or ischemia.A final medical diagnosis was a stroke with left hemiparesis of an unknown etiology.No treatment was listed as being performed.On (b)(6) 2011, the subject was diagnosed with atrial fibrillation.The study site related the event to the procedure, but not to the device.The subject had a final telephone follow on (b)(6) 2015.No additional details are anticipated.
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