P-183: Evaluation of Endometrial Thickness on The Day of HCG Administration on IVF Outcome

Background: Despite recent technical improvement in assisted reproductive techniques (ART), the implantation rate per embryo still remains low (15%). The aim of the study is to determine whether the failure of IVF cycle is associated with endometrial thickness on the day of HCG (human chorionic gonadotropin) administration. Materials and Methods: Endometrial thickness of two hundred and seven patients was evaluated in this prospective study. Transvaginal ultrasound assessment of endometrial thickness was performed on the day of HCG administration. The endometrial thickness was divided into 3 groups: ≤7 mm (group 1), 8-14 mm (group 2), ›14 mm (group 3). Results: Comparing 3 groups, patients with endometrial thickness of ›14 mm (group 3) has shown the better pregnancy rate (46.2%), but here is no statistical significance in sagittal thickness of endometrium and pregnancy rate by using CHI square test (p=0.358) Conclusion: Endometrial thickness in predicting pregnancy could not reach statistical significance.