Document Detail

Pregnancies and oral contraceptive therapy in severe (homozygons) FXII deficiency: a study in 12 patients and review of the literature.
MedLine Citation:
PMID:  15815884     Owner:  NLM     Status:  MEDLINE    
Twelve women with severe Factor XII (FXII) deficiency were under observation for an average period of about 16 years. During this time, these women had 19 pregnancies without any bleeding or thrombotic complications. The evaluation of the literature has shown that three patients manifested deep vein thrombosis during pregnancy. Five women also showed mild bleeding at delivery . The significance of these findings is not clear since thrombotic and bleeding complications may occur occasionally even in normal women. Five of our patients took oral contraceptive therapy during their fertile life for a variable period of time (2-10 years). No thrombosis was noted in any of these patients. From the scanty data gathered, in this respect, from the literature, it was shown that only three women with severe FXII deficiency took oral contraceptives and no thrombosis was noted. Altogether these results seem to indicate that the FXII deficiency does not play any significant role in the pathogenesis of bleeding and of thrombotic complications in pregnancy. However, the occurrence of deep vein thrombosis in 3 out of the 64 patients for whom sufficient data could be gathered indicates the need for further studies. This is more so if one considers that 3 out of the 6 cases of venous thromboses described altogether in the literature for females with severe FXII deficiency occurred during pregnancy or puerperium.
A Girolami; N Zocca; B Girolami; A M Lombardi; F Fabris
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Journal of thrombosis and thrombolysis     Volume:  18     ISSN:  0929-5305     ISO Abbreviation:  J. Thromb. Thrombolysis     Publication Date:  2004 Dec 
Date Detail:
Created Date:  2005-04-07     Completed Date:  2005-08-23     Revised Date:  2009-11-03    
Medline Journal Info:
Nlm Unique ID:  9502018     Medline TA:  J Thromb Thrombolysis     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  209-12     Citation Subset:  IM    
Departement of Medical and Surgical Science, Second Chair of Medicine, University of Padua Medical School, Padua, Italy.
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MeSH Terms
Contraceptives, Oral* / adverse effects
Factor XII Deficiency / genetics*
Pregnancy / blood,  genetics*
Reg. No./Substance:
0/Contraceptives, Oral

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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