The efficacy of progestin primed ovarian stimulation (PPOS) during controlled ovarian stimulation(COS) for patients with endometriosis - PPOS for patients with endometriosis

During this study, no premature LH surge was detected. A smaller number of oocytes were retrieved in the dienogest(DNG) group than in the dydrogesterone(DYG) group (6.18 vs. 9.85); however, the rate of mature oocytes was significantly higher in the DNG group than in the DYG group (89.1% vs. 78.9%). The fertilization rate was comparable between two groups. Therefore, patients taking DNG for PPOS can continue endometriosis treatment and obtain good-quality embryos during COH.