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  • Title: Development of inhibitors in haemophilia. Ongoing epidemiological study.
    Author: Serban M, Mihailov D, Pop L, Ionita H, Ursu E, Talpos-Niculescu S, Ritli L, Baghiu D, Uscatescu V, Petrovanu C, Stancu P, Savescu D, Cucuianu A, Schramm W.
    Journal: Hamostaseologie; 2011 Nov; 31 Suppl 1():S20-3. PubMed ID: 22057218.
    Abstract:
    A number of 513 consecutive patients (494-haemophilia A and 19-haemophilia B) from eight haemophilia treatment centers have been investigated with Bethesda assay for the presence of factor VIII or IX inhibitors. The overall prevalence of inhibitors was 15.20%, 18.48% in severe, 5.60% in moderate and 12.24% in mild forms. The prevalence was higher than reported in most of the western countries. The age at start of substitution (p = 0.9775), the frequent switching of factor concentrates (p = 0.8931) were not relevant factors for the development of inhibitors. It is worth to be mentioned the unexpectedly occurrence of inhibitors in prior inhibitor negative (6/72) patients (during surgical interventions) probably due to their previous scarce substitution, occurrence which seems not being connected with the continuous infusion modality of factor VIII administration (p = 0.8341). In controversial situations, in the field of low titer (≤ 1 BU/ml) inhibitors for a reliable interpretation of the results the performance of recovery index and half-life time assessment of FVIII/IX was undertaken.
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