In (b)(6) 2012, the patient underwent a mitral valve replacement and aortic valve with ascending aortic artery replacement procedure.A 27 mm sjm epic valve was implanted in the mitral position and a 21 mm sjm trifecta valve was implanted in the aortic position.Post implant, the patient developed severe mitral valve insufficiency of the epic valve requiring explantation.During the explant procedure, pannus was observed on the valve impeding the cusps.A 25 mm tissue valve from another manufacturer was implanted as a replacement.The aortic valve remained implanted.The patient was reported to be in stable postoperatively.
|
The results of this investigation concluded cusp 1 contained a tear and missing tissue in the free edge.There was fibrous pannus ingrowth on the outflow surface of cusp 1 and the inflow surfaces of all cusps, resulting in a narrowing of the inflow diameter and fusion of cusps 2 and 3.There was fibrous thickening of all cusps, and a thin layer of fibrin on all cusps with eosinophils on the outflow surfaces of cusps 2 and 3.Special stains were negative for organisms, and there was focal calcification in the free edge of cusp 1.A review of the device history record could not be completed, as the serial number was unavailable.There was no evidence found to suggest there was an intrinsic defect in the valve, as supported by the analysis performed, but the cause of the reported event remains unknown.
|