On (b)(6) 2014, an aortic valve replacement with this 23 mm sjm epic valve was performed due to calcific aortic stenosis.In (b)(6) 2014, the patient was admitted to icu for atrial fibrillation with tachyarrhythmia.Sinus rhythm was restored and normal prosthetic function was confirmed.The patient was asymptomatic and functional class nyha ii for the next 2 to 3 months.Late (b)(6) 2014, the patient was admitted to the hospital with signs and symptoms of exacerbated left ventricular heart failure in the presence of sinus rhythm with preserved ejection fraction.Prosthetic aortic valve stenosis was diagnosed.Echocardiography documented an elevated gradient, thickened prosthetic cusps, and aortic regurgitation.On (b)(6) 2015, the epic valve was explanted and replaced with a 19 mm sjm regent mechanical valve.The patient was reported to be stable and discharged.
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The results of this investigation concluded all cusps were fibrotically thickened.There was outflow thrombus on all cusps.The thrombus created folds in all cusps, which retracted the cusps and resulted in incomplete coaptation.Special stains were negative for organisms, and no significant calcifications were present.There was no evidence found to suggest the cause of the fibrin and thrombus were due to an intrinsic defect in the valve, as supported by review of the valve's device history record and the analysis performed.The cause of the reported event remains unknown.
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