Document Detail


Increased fetal loss in women with heritable thrombophilia.
MedLine Citation:
PMID:  8843809     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: A successful outcome of pregnancy requires an efficient uteroplacental vascular system. Since this system may be compromised by disorders of haemostasis associated with a prothrombotic state, we postulated that maternal thrombophilia might be a risk factor for fetal loss. We studied the relation between heritable thrombophilic defects and fetal loss in a cohort of women with factor V Leiden or deficiency of antithrombin, protein C, or protein S. METHODS: We studied 1384 women enrolled in the European Prospective Cohort on Thrombophilia (EPCOT). Of 843 women with thrombophilia 571 had 1524 pregnancies; of 541 control women 395 had 1019 pregnancies. The controls were partners of male members of the EPCOT cohort or acquaintances of cases. We analysed the frequencies of miscarriage (fetal loss at or before 28 weeks of gestation) and stillbirth (fetal loss after 28 weeks of gestation) jointly and separately. FINDINGS: The risk of fetal loss was increased in women with thrombophilia (168/571 vs 93/395; odds ratio 1.35 [95% Cl 1.01-1.82]). The odds ratio was higher for stillbirth than for miscarriage (3.6 [1.4-9.4] vs 1.27 [0.94-1.71]). The highest odds ratio for stillbirth was in women with combined defects (14.3 [2.4-86.0]) compared with 5.2 (1.5-18.1) in antithrombin deficiency, 2.3 (0.6-8.3) in protein-C deficiency, 3.3 (1.0-11.3) in protein-S deficiency, and 2.0 (0.5-7.7) with factor V Leiden. The corresponding odds ratios for miscarriage in these subgroups were 0.8 (0.2-3.6), 1.7 (1.0-2.8), 1.4 (0.9-2.2), 1.2 (0.7-1.9), and 0.9 (0.5-1.5). Significantly more pregnancy terminations had been done in women with thrombophilia than in controls (odds ratio 2.9 [1.8-4.8]); this discrepancy was apparent in nine of 11 participating centres and for all thrombophilia subgroups. INTERPRETATION: Women with familial thrombophilia, especially those with combined defects or antithrombin deficiency, have an increased risk of fetal loss, particularly stillbirth. Our findings have important implications for therapy and provide a rationale for clinical trials of thromboprophylaxis for affected women with recurrent fetal loss.
Authors:
F E Preston; F R Rosendaal; I D Walker; E Briët; E Berntorp; J Conard; J Fontcuberta; M Makris; G Mariani; W Noteboom; I Pabinger; C Legnani; I Scharrer; S Schulman; F J van der Meer
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Publication Detail:
Type:  Journal Article; Multicenter Study; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Lancet     Volume:  348     ISSN:  0140-6736     ISO Abbreviation:  Lancet     Publication Date:  1996 Oct 
Date Detail:
Created Date:  1996-11-08     Completed Date:  1996-11-08     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  2985213R     Medline TA:  Lancet     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  913-6     Citation Subset:  AIM; IM    
Affiliation:
Royal Hallamshire Hospital, Sheffield, UK.
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MeSH Terms
Descriptor/Qualifier:
Abortion, Spontaneous / epidemiology,  etiology*
Adult
Aged
Aged, 80 and over
Antithrombin III Deficiency
Blood Coagulation Disorders / complications*,  genetics
Blood Protein Disorders / complications*,  genetics
Case-Control Studies
Cohort Studies
Factor V Deficiency / complications,  genetics
Female
Fetal Death / epidemiology,  etiology*
Humans
Middle Aged
Pregnancy
Protein C Deficiency
Protein S Deficiency / complications,  genetics
Recurrence
Risk Factors
Comments/Corrections
Comment In:
Lancet. 1996 Dec 21-28;348(9043):1734-5   [PMID:  8973447 ]
Lancet. 1996 Dec 21-28;348(9043):1734   [PMID:  8973446 ]
Lancet. 1996 Dec 21-28;348(9043):1735   [PMID:  8973448 ]

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


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