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Long-term high dose factor VIII treatment of 3 haemophiliacs with factor VIII inhibitor
3 patients with haemophilia A and inhibitor against Factor VIII were developing progressive haemophiliac arthropathy due to the non-feasibility of prophylactic treatment. In order to suppress inhibitor formation, long-term treatment with high-dose Factor VIII (100 units per kg body weight twice daily) was initiated. Prothrombin complex concentrate was given only for bleeding episodes. Though all 3 patients were high responders, they presented different treatment courses. 2 became low responders after 4 and 11 months' treatment, respectively. 1 patient had no demonstrable inhibitor after start of treatment. In all 3 patients, prophylactic treatment was established, in 1 case still with increased doses compared to non-inhibitor patients. The high-dose Factor VIII treatment makes in possible to provide prophylactic treatment for the high-responder inhibitor patients. However, the extremely high costs represent a serious obstacle to this treatment.
3 patients with haemophilia A and inhibitor against Factor VIII were developing progressive haemophiliac arthropathy due to the non-feasibility of prophylactic treatment. In order to suppress inhibitor formation, long-term treatment with high-dose Factor VIII (100 units per kg body weight twice daily) was initiated. Prothrombin complex concentrate was given only for bleeding episodes. Though all 3 patients were high responders, they presented different treatment courses. 2 became low responders after 4 and 11 months' treatment, respectively. 1 patient had no demonstrable inhibitor after start of treatment. In all 3 patients, prophylactic treatment was established, in 1 case still with increased doses compared to non-inhibitor patients. The high-dose Factor VIII treatment makes in possible to provide prophylactic treatment for the high-responder inhibitor patients. However, the extremely high costs represent a serious obstacle to this treatment.