Gonadotropin injection and occyte retrieval on the quality of oocyte and embryo in IVF in National Hospital of Obstetric and Gynaecology

Abstract

Objective: To assess the effects of the moment of oocyte retrieval on quality of oocyte and embryo in ovarian stimulation with long protocol. Materials & Methods: 261 patients performed in vitro fertilization in Assisted reproduction center of the National Hospital of Obstetrics and Gynecology were stimulated by long protocol and conducted to oocyte retrieval in the 35th, 36 th, 37 th and 38th hours after hCG injection. Results: There is an improvement in the quality of oocytes and embryos in long protocol when do oocytes retrieval in the 36th, 37th hours after hCG injection. Conclusions: In long protocol ovarian stimulation, oocyte retrieal should be taken in 37th and 36th hours after injection of hCG to increase the quality of oocyte and embryo. Recommendations: There should be studies with larger sample sizes, multi-center to make recommendations about the optimal time to do oocyte retrieval to improve the rate success of IVF.