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Etiology of hypercoagulable state in women with recurrent fetal loss without other causes of miscarriage from Southern Italy: new clinical target for antithrombotic therapy

Authors D'Uva M, Di Micco P, Strina I, Ranieri A, Alviggi C, Mollo A, Fabozzi F, Cacciapuoti L, di Frega MTS, Iannuzzo M, De Placido G

Published 5 December 2008 Volume 2008:2(4) Pages 897—902


Review by Single anonymous peer review

Peer reviewer comments 8

Maristella D’Uva1, Pierpaolo Di Micco2, Ida Strina1, Antonio Ranieri1, Carlo Alviggi1, Antonio Mollo1, Francesca Fabozzi1, Lucia Cacciapuoti1, Maria Teresa Scotto di Frega1, Mariateresa Iannuzzo2, Giuseppe De Placido1

1Dipartimento Universitario di Scienze Ostetriche Ginecologiche e Medicina della Riproduzione, Area Funzionale di Medicina della Riproduzione ed Endoscopia Ginecologica, Università degli Studi di Napoli Federico II, via Pansini 5 Building 9, 80131, Naples, Italy; 2Internal Medicine Division, Fatebenefratelli Hospital of Naples, Naples, Italy

Background: Recurrent fetal loss (RPL) is one of the most common cause of sterility. Several studies identified thrombophilia as the principal cause of recurrent pregnancy loss. However, reported studies often do not evaluate other causes of miscarriages in their inclusion and exclusion criteria. So the aim of our study was to investigate the role of inherited thrombophilia in patients with RPL and without other causes of RPL.

Patients and methods: Patients with 2 or more first trimester abortion or with 1 or more late pregnancy loss were considered for this study. In order to evaluate the causes of RPL we looked for chromosomal, endocrine, chronic inflammatory, and infectious alterations. 90 patients affected by unexplained RPL were enrolled and tested for hemostatic alterations. These women were tested for inherited and/or acquired thrombophilia by MTHFR C677T gene polymorphism, factor V Leiden gene polymorphism, PTHRA20210G gene polymorphism, protein S deficiency, protein C deficiency, antithrombin III deficiency, lupus anticoagulant, and anticardiolipin antibodies Ig G and Ig M.

Results: Acquired and/or inherited thrombophilia are strongly associated with RPL when other common causes of miscarriage were excluded. 78% of tested women showed hemostatic abnormalities. Several women with combined thrombophilic defects were also identified by our data.

Conclusion: After a thorough evaluation of other causes of miscarriage women affected by RPL should be tested for thrombophilia. Our data demonstrated 78% of women with one or combined thrombophilic conditions. Differences with previous studies should be related to difference in the inclusion and exclusion criteria and ethnic background. Because these patients often also show a hypercoagulable state, it an antithrombotic treatment before and during pregnancy may improve their clinical outcome (ie, secondary prevention of miscarriage and primary thromboprophylaxis).

Keywords: recurrent pregnancy loss, late pregnancy loss, thrombophilia, hypercoagulable state, hyperhomocysteinemia, factor V Leiden, prothrombin, antithrombotic drugs

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