Prótesis mecánica mitral y cuadros presincopales

The incidence of mitral prosthetic valve thrombosis is low and generally dependent on low levels of anticoagulation. The clinical presentation is highly variable and range from asintomatic patient though to arterial embolism or hemodinamic symptoms of valve obstruction. We report a case of a patient with presyncope and prosthetic mitral valve dysfunction with intermitent flow obstruction.