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  • Title: The overall effectiveness of prophylaxis in severe haemophilia.
    Author: Panicker J, Warrier I, Thomas R, Lusher JM.
    Journal: Haemophilia; 2003 May; 9(3):272-8. PubMed ID: 12694517.
    Abstract:
    The aim of this retrospective review was to assess the overall effectiveness of prophylaxis when compared with on-demand treatment of haemophilic patients. Twenty-five children (22 with severe haemophilia A and three with severe haemophilia B) were evaluated. Five haemophilia A patients received primary prophylaxis (instituted before the onset of any joint bleed) while the other 17 haemophilia A and all three haemophilia B patients were on secondary prophylaxis. We compared factor usage, number of bleeding episodes, emergency room (ER) visits and hospitalizations while on prophylaxis to those while on demand therapy. All subjects were male, the median age at time of review was 11.4 years and at start of prophylaxis was 4.5 years. Thirteen of the 25 patients (52%) required indwelling venous catheters for access, seven of these had one or more (one-six) episodes of line sepsis. Haemophilia A patients received an average of 23.8 U kg(-1) (20-30 U kg(-1)) of recombinant factor VIII three times a week while haemophilia B patients received 50 U kg(-1) recombinant FIX twice weekly. There was a significant reduction in the mean number of major bleeds on prophylaxis from 15.5 to 1.9 per year and a significant decrease in target joints, ER visits and hospitalizations. Although factor usage per year was higher on prophylaxis, there was an overall reduction in number of bleeds and resultant decrease in hospitalizations and ER visits. By preventing new target joints, prophylaxis can lead to reduction in long-term morbidity and a better quality of life despite increased central lines and higher factor usage.
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