著者

王 星倫 寺井 陽彦 中島 世市郎 田窪 希実子 福居 希 木村 吉宏

出版者

社団法人 日本口腔外科学会

雑誌

日本口腔外科学会雑誌 (ISSN:00215163)

巻号頁・発行日

vol.62, no.5, pp.222-225, 2016-05-20 (Released:2016-07-20)

参考文献数

8

被引用文献数

2

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Acquired hemophilia A is a very rare disease caused by the acquisition of factor Vlll inhibitor. We report a case of acquired hemophilia A incidentally diagnosed in a patient who had bleeding after tooth extraction. A 77-year-old man who complained of bleeding after tooth extraction presented at our hospital. Hematological examination revealed a prolonged activated partial thromboplastin time (APTT), decreased coagulation activity of factor Vlll, and high level of factor Vlll inhibitor. Consequently, acquired hemophilia A was diagnosed. The patient received corticosteroids and bypass therapy. Four months later, the APTT and factor Vlll activity returned to the normal level. Although this is a very rare case, we should suspect hematologic disease, including acquired hemophilia A, when we encounter patients with bleeding after tooth extraction.