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  • Title: Laboratory response to intranasal desmopressin in women with menorrhagia and platelet dysfunction.
    Author: Rose SS, Faiz A, Miller CH, Saidi P, Philipp CS.
    Journal: Haemophilia; 2008 May; 14(3):571-8. PubMed ID: 18312366.
    Abstract:
    Intranasal desmopressin (IN-DDAVP) is used for home treatment of menorrhagia in women with inherited bleeding disorders. The effect of IN-DDAVP on laboratory haemostatic parameters in women with menorrhagia related to platelet dysfunction is unknown. We evaluated the effects of IN-DDAVP on haemostatic parameters in women with menorrhagia and platelet dysfunction and correlated them with menstrual flow. Eleven women (aged 18-45) with menorrhagia and haemostatic abnormalities had determination of von Willebrand factor antigen (VWF:Ag), von Willebrand factor ristocetin cofactor (VWF:RCo) activity, factor VIII coagulant activity (FVIII:C), platelet aggregation and platelet adenosine tri-phosphate (ATP) release pre-IN-DDAVP and 60-min post-IN-DDAVP. Eight of eleven women underwent platelet function analyzer (PFA-100) closure time determination with collagen/adrenaline and collagen/adenosine diphosphate cartridges pretreatment and post-treatment. IN-DDAVP was administered during two consecutive menstrual cycles. Menstrual flow was assessed during each cycle using a pictorial blood assessment chart. Treatment with IN-DDAVP resulted in elevated VWF levels and shortened PFA-100 closure time with significant inverse correlation between shortening of PFA-100 closure times and increases in VWF levels. There were also significant inverse correlations between changes in menstrual flow and changes in VWF:Ag (P = 0.02), VWF:RCo (P = 0.04) and FVIII:C (P = 0.006), following treatment. In vitro platelet aggregation and platelet ATP release response did not correct and did not correlate with changes in menstrual flow. Our results demonstrate a correlation between haemostatic parameters and menstrual flow following IN-DDAVP in women with menorrhagia and platelet dysfunction.
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