Abstract:Objective To observe the application of luteal-phase ovulation and gonadotropin -releasing hormone-a (GnRH-a) ultra-short program in elderly patients with fertilization and embryo transfer (IVF-ET) and to explore the effectiveness and feasibility of ovulation induction in luteal phase. Methods A total of 114 patients with advanced age were retrospectively analyzed, among which 83 cases took ultra-short program (group A) and 31 cases received ovulation induction of luteal phase (group B). The ovulationinduction effect and pregnancy outcomes were compared between the two groups. Results Compared with the group A, the dosage of human menopausal gonadotropin was larger, the dosage of recombinant follicle stimulating hormone was smaller, the cost of gonadotropin (Gn) was lower, and the fertilization rate was higher,the rate of high quality embryos was lower in the group B (P < 0.05). There was no significant difference in age, infertility duration, BMI, basal follicle stimulating hormone, basal luteinizing hormone, basal estradiol, Gn days, triggering estradiol, 2PN cleavage rate, the number of available embryos, the rate of transplantable embryo, clinical pregnancy rate or early abortion rate between the two groups (P > 0.05). Conclusions In the elderly patients, the luteal-phase ovulation induction program has a higher rate of fertilization in the case of low Gn cost compared with the ultra-short program, and the two programs have no significant difference in the total number of oocytes retrieved, the available embryo rate or pregnancy outcome, suggesting that lutealphase ovulation induction program can be used as an ideal treatment for elderly patients with IVF.