Survey of the influence of key factors on the number and percentage of preimplantation embryos obtained from patients with low ovarian reserve during IVF/ICSI procedure

Essential to the success of an in vitro procedure infertility treatment cycle are the number and quality of the oocytes obtained, and the preimplantation embryos, respectively. Larger number of embryos allows a selective embryo transfer of the most viable embryos showing the best quality to be done which has been proved to increase the rate of clinical pregnancies and birth rates.1,2 Achieving a satisfactory number of embryos is a result of an appropriate controlled ovarian hyperstimulation consistent with the patient’s age and hormonal status, a properly selected method of insemination of the oocytes based on the morphological features of the gametes.3