Acquired haemophilia due to factor VIII inhibitors in ovarian hyperstimulation syndrome: case report

Tomoko Nakauchi-Tanaka1, Satoshi Sohda, Katsumi Someya

  • 1Department of Obstetrics and Gynecology, Institute of Clinical Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305, Japan.

A 31-year-old nulligravida woman developed an acquired factor VIII inhibitor associated with severe ovarian hyperstimulation syndrome (OHSS). She developed haematouria, ecchymosis, and intramuscular bleeding following the severe OHSS. Laboratory examinations showed a markedly prolonged activated partial thromboplastin time and a low level of factor VIII activity. Treatment with prothrombin complex concentrate and factor VIII inhibitor bypassing agent was successful in reducing the inhibitor so that she delivered a healthy baby via spontaneous vaginal delivery. Acquired haemophilia is a life-threatening disorder. This is the first case report of acquired haemophilia in OHSS.

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