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Am J Reprod Immunol. 2009 Oct;62(4):253-60. doi: 10.1111/j.1600-0897.2009.00733.x. Epub 2009 Aug 24.

A retrospective analysis of fondaparinux versus enoxaparin treatment in women with infertility or pregnancy loss.

Author information

1
Alan E. Beer Center for Reproductive Immunology & Genetics, San Francisco, CA 94111, USA. ewinger@sbcglobal.net

Abstract

PROBLEM:

We compared the pregnancy success rates and safety parameters of fondaparinux versus enoxaparin, combined with immunotherapy, in patients with a history of miscarriage and/or infertility and coagulant defects.

METHOD OF STUDY:

A total of 127 pregnancies in 110 patients with a history of miscarriage and/or infertility were retrospectively evaluated. Of these, 29 pregnancies used fondaparinux 2.5 mg daily and 98 pregnancies used enoxaparin 30 mg twice daily.

RESULTS:

The pregnancy success rate was 59% (17/29; 95% CI, 41-75%) for patients receiving fondaparinux and 58% (57/98; 95% CI, 48-68%) for patients receiving enoxaparin. No difference was detected in birth weight (2.7 +/- 0.8 and 2.9 +/- 0.6 kg, respectively) or gestational age at delivery (37.3 +/- 2.2 and 37.7 +/- 2.1 weeks, respectively). No birth defects, severe bleeding-related complications, or serious allergic reactions were observed.

CONCLUSION:

In patients with a history of miscarriage, infertility, and coagulant defects receiving immunotherapy, fondaparinux resulted in successful pregnancy outcomes comparable with enoxaparin therapy. Although no difference in outcome was observed in our analysis, a much larger study is required to achieve statistical power.

[Indexed for MEDLINE]

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