GNRH1 and ovarian hyperstimulation syndrome: According to the latest publication, there was no difference in live birth rates and OHSS between patients who received low-dose hCG at the time of GnRH agonist trigger (dual trigger) and those who received low-dose hCG at the time of oocyte retrieval; however, the authors show that the cases of OHSS in the group who received low-dose hCG at the time of oocyte retrieval were moderate, while the one case of OHSS in the dual trigger group was mild (21).