THROMBOSIS IN A MITRAL BIOLOGICAL PROSTHESIS ASSOCIATED WITH SEVERE VALVE DYSFUNCTION DURING ORAL ANTICOAGULATION

CASE REPORT

Abstract

file:///C:/Users/romul/OneDrive/Área%20de%20Trabalho/Revistas/Revista%20CEThe occurrence of a thrombus in a biological prosthesis is rare, but it presents a potentially fatal outcome when there is significant obstruction of the valve area. We describe the case of a 60-year-old patient who presented severe cardiac decompensation 10 months after implantation of biological mitral and aortic prostheses. The diagnostic transesophageal echocardiogram (TEE) showed a pedicled thrombus adhered to the left ventricular (LV) papillary muscle and important thickening of the mitral biological prosthesis (MBP) leaflets by a laminated thrombus with significant limitation of its opening causing severe mitral stenosis. Anticoagulant therapy started with low molecular weight heparin (LMWH) with resolution of the condition. Patient maintains regular monitoring with satisfactory evolution in the last four years.