Predictors of IVF/ICSI success following treatment of endometriosis as the cause of primary infertility.

Abstract

Treatment of endometriosis prior to IVF/ICSI could be followed by the significant reduction of ovarian reserve. The aim is to identify potential markers of the IVF/ICSI outcome in patients with endometriosis associated infertility and to evaluate their clinical significance. The prospective cohort study included 73 patients with primary infertility caused by endometriosis that were subjected to 77 IVF/ICSI cycles. Patients were classified into two groups. In the first group some type of treatment had previously been applied, and in the second group patients were immediately subjected to the IVF/ICSI procedures. When pregnancy was achieved, there were significantly more patients under 35 years of age, more patients with primary infertility duration up to 3 years, and more patients with endometriosis that was previously treated (77.4%) (p < 0.039). In the cases of the successful outcome Endometriosis Fertility Index > 7, lower basal FSH and FSH/LH ratio were found, as well as significantly higher basal E2, basal P4 and AMH. Significantly lower doses of gonadotropins were needed in cases of the successful outcome, and long protocol with agonists was more frequently used. Multivariate logistic regres-sion analysis showed that previous therapy of endometriosis, P4 ≥ 0.7 ng/mL, AMH ≥ 0.9 ng/mL, A class of embryos, and the use of long protocol with agonists were predictors of the successful IVF/ICSI outcome. Therapy for endometriosis, AMH and P4 levels appeared to be predictors for the successful IVF/ICSI outcome and the use of long protocol with agonists could be advised in these cycles.