#199 : Does Hysteroscopic Evaluation of Uterine Characteristic Improve Outcome of Thin Endometrium in Patients with a History of Repeated Implantation Failures?

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Background: Repeated implantation failure (RIF) is a problem for many patients suffering from infertility and their physicians. Despite numerous developments in the field of assisted reproduction, the implantation rate remains low. Among the various reasons of implantation failure, endometrial regularity has an important role. Recently, hysteroscopy is an accurate method for evaluating the endometrial integrity, with the ability to treat uterine pathology for repeated implantation failure patients. Objective: The aim of this study to evaluate the incidence of uterine pathology among infertile women with a history of two implantation failures after IVF and estimate the effect of diagnostic hysteroscopy and hysteroscopic procedures in uterine cavity on achieving a pregnancy in these patients in Mongolia. Materials and Methods: The retrospective study population included infertile women who attended the outpatient department of the Creation and Love Women’s infertility clinic, between August 2020 and July 2022 in Mongolia. The study inclusion criteria were women who had more than two RIF of IVF/ET cycle. Pregnancy and nonpregnancy rate after hysteroscopic procedures were analyzed included in patients reports archived in clinical data. Results: Hysteroscopy were performed on 35 women who had at least two RIFs. The participants’ mean age was 40.3±5.3 and mean duration of infertility year was evaluated 5.53±3.7. Mean AMH level was 1.4±1.6 ng/ml. All patients were diagnosed abnormal uterine cavity by hysteroscopy. Out of 35 patients participated in this study who underwent hysteroscopic evaluation, 20 patients (57.1%) showed synechiae (mild, moderate and severe synechiae). Second most frequent hysteroscopic finding was the endometrial polyp, accounting for 15 (42.9%) patients. Pregnancy rate after hysteroscopic procedures was 8 patients (23%) in this study group. The duration of infertility year was significantly different in pregnant and nonpregnant women underwent hysteroscopic correction (p<0.05). Conclusion: The intrauterine pathology diagnosed by hysteroscopy in patients with previous IVF failure were found all patients in this study. The synechiolysis was common abnormality in Mongolia may cause by artificial abortion. The correction of abnormalities such as and polyp synechiolysis might improve the outcome of successful pregnancy rate.