In vitro fertilization and autoimmunity: Evidence from an observational study.

The aim of this study was to evaluate the prevalence of antiphospholipid antibodies (aPLs) in infertile women undergoing in vitro fertilization (IVF). From January 2012 to December 2017, 520 consecutive clinical records of infertile women undergoing IVF were evaluated. Among them, 100 consecutive clinical records of patients with positive autoantibodies were selected. In 100/520 (19.23%) women, positive auto-antibodies were detected: 35/520 (6.73%) fulfilled classification criteria for a systemic disease. Positive aPLs were observed in 43 women (8.27%): 17/520 (3.27%) fulfilled diagnostic criteria for PAPS/APS, whereas patients with positive aPLs, who fulfilled diagnostic criteria for a systemic autoimmune disease other than APS were 18/520 (3.46%). LA and aCL were the main aPLs detected 53.49% and 44.19% respectively, whereas aB2GPI were found in 25.58%. we suggest that women with infertility may represent a subpopulation of patients with underhanded systemic autoimmune syndromes in which the main symptoms represented are obstetrical complications. We, therefore, recommend evaluating aPLs in all patients undergoing IVF with the aim of recognizing women at a higher risk of miscarriage or pregnancy morbidity.

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