Abstract:A 55-year-old female who undergone mitral valve replacement eight years ago with a mechanical graft, presented accusing sudden decrease of effort tolerance and two episodes of pulmonary edema in the last month. Anamnesis, physical examination, electrocardiogram (ECG), transthoracic echocardiography and coronarography were performed. The mechanical valve leaflets and the tissue surrounding the prosthetic ring were evaluated by: optical microscopy (hematoxylin eosin stain and immunohistochemistry), scanning elec… Show more
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