Impact of Anticardiolipin Antibody on the Outcome of In Vitro Fertilization and Embryo Transfer
To investigate the impact of anticardiolipin antibody (ACA) on the outcome of in vitro fertilization and embryo transfer (IVF-ET).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.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%).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.