Problem: To investigate the impact of anticardiolipin antibody (ACA) on the outcome of in vitro fertilization and embryo transfer (IVF-ET).
Methods: A total of 76 infertile women positive for anticardiolipin antibody (ACA+ group) and 819 controls negative for anticardiolipin antibody (ACA- group) undergoing IVF-ET in the First Affiliated Hospital, to Sun Yat-Sen University, were retrospectively analyzed. Women were diagnosed as having pure tubal factor infertility.
Results: The proportion of patients with a history of spontaneous abortion in the ACA+ group was significantly higher than that in ACA- group (19.7% versus 8.9%). The IVF rate, pregnancy rate and implantation rate in the ACA+ group were markedly lower than those in the ACA- group (75.5% versus 78.9%, 31.3% versus 48.6% and 16.1% versus 28.1%, respectively). Furthermore, the incidence of pregnancy loss in the ACA+ group was higher than that in the ACA- group (32.0% versus 15.1%).
Conclusion: ACA-positive patients had significantly decreased IVF rate, pregnancy rate and implantation rate and high risk of abortion. Therefore, ACA positivity predicts poor outcome of IVF-ET, and pre-treatment to lower ACA level may be clinically beneficial for patients receiving IVF-ET.
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