Events of mitral stenosis, pulmonary hypertension, and left heart failure were reported.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, the underlying congenital heart disease and associated patient conditions was a contributing factor.
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The following abstract information is from "the 54th annual meeting of japanese society of pediatric cardiology and cardiac surgery.Program: mentoring and raising in pediatric cardiology.(p58-01)".Five months after birth, an infant with congenital mitral stenosis and pulmonary hypertension underwent mitral valve replacement (mvr).A 17mm masters valve was implanted.Following surgery, mitral stenosis, pulmonary hypertension, left heart failure, cardiac asthma, , weight gain failure, and exercise limitation were observed from an early stage post-procedure.When the patient was (b)(6) old, redo mvr was performed and a 19mm sjm artificial heart valve was implanted.Remarkable stability was obtained postoperatively.
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