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J Assist Reprod Genet. 1998 Nov;15(10):579-82.

A matched study to determine whether low-dose aspirin without heparin improves pregnancy rates following frozen embryo transfer and/or affects endometrial sonographic parameters.

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  • 1University of Medicine and Dentistry of New Jersey, Robert Wood Johnson Medical School at Camden, Camden, New Jersey, USA.

Abstract

PURPOSE:

The objective of the matched, controlled study was to determine whether low-dose aspirin therapy without heparin improves pregnancy rates following frozen embryo transfer.

METHODS:

Thirty-six women who did not achieve a pregnancy following fresh embryo transfer and who had frozen embryos available for another transfer were included. Eighteen women were treated with 81 mg aspirin from day 2 of the cycle through pregnancy testing. If the beta-human chorionic gonadotropin level was positive, aspirin was continued through the pregnancy. Eighteen women were not given aspirin. The mean outcome variables were pregnancy and implantation rates.

RESULTS:

The clinical pregnancy rate in the aspirin group was 11.1%, compared with 33.3% for the controls, and implantation rates were 2.9 and 10.9%, respectively.

CONCLUSIONS:

No positive effects of low-dose aspirin therapy on pregnancy rates following frozen embryo transfer were observed.

PMID:
9866064
PMCID:
PMC3454856
[PubMed - indexed for MEDLINE]
Free PMC Article
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