%0 Journal Article %T Hematoma de m¨²sculo iliopsoas na vig¨ºncia de tratamento com varfarina %A Zago %A Gabriel %A Appel-da-Silva %A Marcelo Campos %A Danzmann %A Luiz Claudio %J Arquivos Brasileiros de Cardiologia %D 2010 %I Sociedade Brasileira de Cardiologia - SBC %R 10.1590/S0066-782X2010000100023 %X warfarin is a widely used drug for the prevention of thromboembolic events. knowledge of its adverse effects is necessary for patient follow-up. although the development of blood dyscrasias is a potential complication in these patients, retroperitoneal bleeding is rare. this article reports the case of a patient who developed iliopsoas muscle hematoma during treatment with warfarin after implantation of a metallic prosthetic aortic valve. the clinical manifestations involved important differential diagnoses. %K blood coagulation %K warfarin %K hematoma %K retroperitoneal space %K psoas muscles. %U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0066-782X2010000100023&lng=en&nrm=iso&tlng=en