Abstract:
:Recurrent pregnancy loss (PL) is associated with maternal thrombophilia and prophylaxis with low molecular weight heparin (LMWH) can improve pregnancy outcome in this setting. The aim of this study was to investigate the modulation of systemic hemostatic parameters by enoxaparin in women with recurrent PL and to evaluate plasmatic parameters that would potentially enable monitoring LMWH prophylaxis effect during pregnancy. Study group included 87 women with thrombophilia and PL treated with enoxaparin 40 mg daily vs. 40 mg twice daily. The control group comprised 40 women with normal pregnancies. Blood samples have been collected throughout the period starting at 5-10 weeks of gestation until 6-10 weeks postpartum. The determined plasmatic markers included: anti-Xa activity, total and free tissue factor pathway inhibitor (TFPI), D-dimer, prothrombin fragment 1+2 (PT1+2), activated protein C resistance (APC-SR) and free protein S. Successful pregnancy outcome was recorded in 70 (80.5%) women treated with enoxaparin, without correlation to enoxaparin dosage. Seventeen women (19.5%) had pregnancy loss at 16+/-7 (6-32) weeks of gestation. Anti-Xa levels at 10-15 weeks of gestation were higher (0.39+/-0.38 u/ml) in the successful pregnancy outcome group compared to the abortion group (0.22+/-0.2 u/ml). Prophylactic anti-Xa activity levels (0.28+/-0.13 u/ml) were documented from 15 weeks of gestation until delivery in the successful pregnancy outcome group. Significant increase in anti-Xa, total TFPI and free TFPI levels (P<0.001) was achieved after beginning of LMWH prophylaxis in successful pregnancy outcome group but not in the abortion group. D-dimer and PT1+2 levels appeared to be significantly increased while APC-SR and free protein S levels gradually decreased during pregnancy, with no difference between study groups. These results suggest that LMWH prophylaxis during pregnancy enables modulation of systemic hemostatic parameters via inhibition of factor Xa and increase in plasmatic total and free TFPI levels.
journal_name
Thromb Haemostjournal_title
Thrombosis and haemostasisauthors
Sarig G,Blumenfeld Z,Leiba R,Lanir N,Brenner Bdoi
10.1160/TH05-03-0212keywords:
subject
Has Abstractpub_date
2005-11-01 00:00:00pages
980-5issue
5eissn
0340-6245issn
2567-689Xpii
05110980journal_volume
94pub_type
杂志文章abstract::Treatment with the direct thrombin inhibitor argatroban (ARG) is often followed by vitamin K-antagonist treatment (VKA). Phenprocoumon (PC) and acenocoumarol (AC) are frequently used in Europe. The standard monitoring test for VKA, pro-thrombin time (PT), is prolonged by direct thrombin inhibitors. Therefore the Inter...
journal_title:Thrombosis and haemostasis
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1160/TH03-12-0794
更新日期:2004-06-01 00:00:00
abstract::Since megakaryocytes are the cellular precursors of platelets we have investigated whether they share responses to platelet agonists, in particular collagen. Although previous studies have reported responses to thrombin in non-human megakaryocytes, through studies of single cell calcium responses and protein tyrosine-...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1999-09-01 00:00:00
abstract::Tissue thromboplastin apoprotein was partially purified from human brain. The apoprotein was recombined with mixed phospholipids to yield active thromboplastin. The recombined thromboplastin induced proteolytic activation of isolated human factor IX in the presence of factor VII and Ca2+. The clotting times of various...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1982-08-24 00:00:00
abstract::The emergency management of ST-elevation myocardial infarction (STEMI) involves treatment with dual-antiplatelet therapy (DAPT) and primary percutaneous coronary intervention (PPCI). Pain is generally treated with opiates, which may delay gastric transit and reduce DAPT absorption. We sought to assess the effect of mo...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1055/s-0038-1629896
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journal_title:Thrombosis and haemostasis
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1995-05-01 00:00:00
abstract::Fibrin(ogen) is the major matrix ligand for beta3 integrins. If alpha(v)beta3 is the major receptor for fibrin(ogen) on intimal smooth muscle cells, we might expect to see this integrin associated with fibrin(ogen). Eighty-four specimens obtained from endarterectomies of 14 patients were studied. Fibrin was frequently...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:2000-08-01 00:00:00
abstract::The fibrinolytic system was studied in 96 patients with type I diabetes mellitus. Patients were grouped according to their degree of retinopathy; 38 patients with no evidence of retinopathy, 28 patients with background retinopathy and 30 patients with proliferative retinopathy. Thirty healthy individuals served as con...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1992-10-05 00:00:00
abstract::Recombinant factor VIIa (rFVIIa; Novoseven) is used for treatment of hemophilia patients with inhibitors. There are poorly defined differences in clinical responsiveness between individuals. Prior to licensure in the United States, rFVIIa was available through the compassionate use program, during which two patients d...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:2002-07-01 00:00:00
abstract::The availability of mice with tissue-specific expression of recombinase Cre is the limiting step for a successful gene targeting by the Cre-LoxP methodology. This work aimed at generating transgenic mice with restricted expression of recombinase Cre in megakaryocytes and platelets, driven by the promoter of the αIIb g...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1160/TH10-06-0378
更新日期:2011-01-01 00:00:00
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1990-04-12 00:00:00
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
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更新日期:2020-10-01 00:00:00
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1989-09-29 00:00:00
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:2009-06-01 00:00:00
abstract::Tissue factor (TF) is the blood coagulation initiator, whose cofactor function is required for physiological factor VIIa (FVIIa)-mediated activation of factor X (FX) to FXa. A previous study reported TF on herpes simplex virus type 1 (HSV1), but this explained only part of FVIIa-dependent FXa generation observed on th...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1160/TH04-04-0242
更新日期:2004-11-01 00:00:00
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1160/TH05-07-0463
更新日期:2005-12-01 00:00:00
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1995-05-01 00:00:00
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1160/TH04-12-0831
更新日期:2005-09-01 00:00:00
abstract::D-Dimer measurements are being increasingly used for negative prediction of deep vein thrombosis (DVT). At our institution, clinical score, D-Dimer assay, plethysmography and, if necessary, Doppler ultrasound are used to secure the diagnosis. We collected the data from 100 consecutive patients proven to have DVT. We e...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1160/TH03-11-0699
更新日期:2004-06-01 00:00:00
abstract::The effect of additional treatments combined with conventional therapy on pregnancy outcomes was examined in high-risk primary antiphospholipid syndrome (PAPS) patients to identify the most effective treatment strategy. The study's inclusion criteria were (1) positivity to lupus anticoagulant alone or associated with ...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章,多中心研究
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更新日期:2018-04-01 00:00:00
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1998-05-01 00:00:00
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1992-01-23 00:00:00
abstract::Venous thromboembolism (VTE) is a multifactorial disease. Major provoking factors (e. g. surgery, cancer, major trauma, and immobilisation) are identified in 50-60 % of patients, while the remaining cases are classified as unprovoked. However, minor predisposing conditions may be detectable in these patients, possibly...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章,评审
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1979-10-31 00:00:00
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1160/TH04-03-0154
更新日期:2004-10-01 00:00:00
abstract::Undoubtedly, platelets are key elements in the regulation of thrombosis and haemostasis. Along with their primary task to prevent blood loss from injured vessels, platelets have emerged as regulators of a variety of processes in the vasculature. Multiple challenges, from the contact and adhesion to subendothelial matr...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章,评审
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abstract::Cardiovascular diseases are a major cause of mortality in the developed world. Efficacy of thrombolysis plays an important role in the management of acute myocardial infarction and cerebral insult both in the acute event and in the long-term outcome of these patients. New adjunctive strategies have been tested, theref...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章,评审
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abstract::Although it is recognized that glycoprotein (GP) IIb-IIIa complexes are deficient in platelets in Glanzmann's thrombasthenia, little is known of the origin of the defect. We have examined the megakaryocytes in a bone marrow aspirate obtained from a thrombasthenia patient during surgery. Analysis of platelet proteins b...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1986-08-20 00:00:00
abstract::Thrombin regulation in newborns remains incompletely understood. We studied tissue factor-initiated thrombin formation in cord plasma in vitro, and the effects of Factor V(Leiden) (FVL) heterozygosity on thrombin regulation both in vitro and in vivo in newborns. Pregnant women with known thrombophilia (n=27) were enro...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1160/TH05-05-0375
更新日期:2006-03-01 00:00:00