Medtronic received information via literature of a (b)(6) year-old female patient with for non-rheumatic mitral regurgitation (mr) associated with a ruptured posterior leaflet chordae.She underwent a procedure with quadrangular resection, reconstruction of the posterior leaflet chordae, and implant of a 27-mm medtronic duran ring.Subsequently, five years and eight months (at the age of (b)(6) years) after the initial implant the patient presented with exertional dyspnea.Radiography showed mild cardiac enlargement.Electrocardiogram revealed sinus rhythm with left atrial overload.Cardiac catheterization showed pulmonary artery pressure of 60/35.During a sternotomy the mitral ring and both leaflets were found covered by pannus which narrowed the mitral orifice and restricted the leaflet mobility.The ring and both leaflets were resected.Histopathological examination showed foreign body granuloma associated with giant cells around the excised duran ring and leaflet thickening together with infiltration of inflammatory cells.No additional adverse patient effects were reported.
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