posted on 2019-08-30, 09:53authored byCarvalhoSilva D.M., Braga A., deJesus I., Neves J.
Direct oral anticoagulants are not approved for use in patients with mechanical valves. When used to replace vitamin K antagonists, they may cause catastrophic consequences. The authors describe the case of a patient who, after discontinuation of warfarin and introduction of rivaroxaban, developed thrombosis of his mechanical mitral prosthesis.