RESUMO
The aim of our study was to evaluate serum progesterone levels on the day of oocyte retrieval as a promising biomarker inorder to evaluate the risk of ovarian hyperstimulation syndrome in a group with controlled ovarian hyperstimulation protocols using either gonadotropin antagonists or agonists (GnRH), compare with a natural cycle control group. Patients were divided into 3 groups (148 patients in total): control group in the natural cycle, patients treated with GnRH agonist and patients treated with GnRH antagonist. When we compared both controlled ovarian hyperstimulation (COH) protocol groups with the control group, we found statistically higher levels of progesterone in patients after COH (control versus long protocol group: 1.43 ± 1.28 ng/ml versus 8.95 ± 5.95 ng/ml; P < 0.001; control versus GnRH antagonist group: 1.43 ± 1.28 ng/ml versus 7.18 ± 5.13 ng/ml; P < 0.001). According to receiver operating characteristic (ROC) analysis, the level of serum progesterone on the day of oocyte retrieval, above which the risk of ovarian hyperstimulation syndrome (OHSS) is associated with a more than fourfold higher risk (OR 4.24; 95% CI 2.6 - 6.9) was found to be 9.23 ng/ml, with AUC: 0.896, P = 0.026 (95% CI 0.845 - 0.947). Progesterone level on the day of oocyte retrieval may be used as an additional sensitivity marker in treatment of early forms as well by freezing of embryos in prevention of late forms of OHSS.
