RESUMO
Acquired haemophilia A is a very rare (1-2 cases per million people) but often life-threatening haemorrhagic disorder characterized by antibodies directed against coagulation factor VIII. We report the case of a 55-year old woman under treatment with Pegylated alpha 2a interferon (IFN) and Ribavirin for chronic viral C hepatitis, who developed a progressive severe haemorrhagic syndrome diagnosed as acquired haemophilia based on supplementary laboratory data (prolonged activated partial thromboplastin time, extremely low factor VIII level - 1%, high titre of factor VIII inhibitor - 30 Bethesda U/ml).The onset was insidious, about three months before presenting to our unit. Antiviral therapy had been stopped three weeks before current admission. Emergency intensive treatment included: haemostatic agents - rFVII (Novoseven), FEIBA (Factor VIII Inhibitor Bypassing Activity), vitamin K, adrenostazin, cryoprecipitate, fresh frozen plasma, as well as immunosuppressive therapy (high dose corticotherapy and cyclophoshamide), immunoglobulins (Humaglobin), prophylactic PPI and antibiotics. The evolution was slowly favourable with the remission of the haemorrhagic syndrome and regression of the iliopsoas muscle haematoma. Clinicians should be aware that acquired forms of haemophilia do exist, representing a rare diagnosis and a therapeutic challenge. To our knowledge, this is the first reported case of acquired haemophilia in Romania, in a patient with chronic viral C hepatitis under antiviral treatment.