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Aim: Both morbidity and mortality rates of cervical cancer are increasing, especially in reproductive‐aged women. Radical trachelectomy (RT) is an effective fertility‐preserving surgery for early‐stage cervical cancer. This study aimed to determine the influence of RT on endometrial thickness during in vitro fertilization‐embryo transfer (IVF‐ET). Methods: Forty‐four patients had undergone RT, and 23 women undergoing IVF‐ET treatment (105 ET cycles) were included. Endometrial thickness during hormone replacement therapy (HRT) was retrospectively evaluated and compared between patients with and without RT. Results: Eleven patients (50 ET cycles) in the RT group and 12 (52 ET cycles) in the control group were investigated. Compared with the control group, higher ET cancellation rates were observed in patients in the RT group (1 of 52 cycles [control group] vs. 8 of 50 cycles [RT group], p < 0.01). Endometrial thinning was not affected by patient age at first IVF‐ET treatment, history of artificial abortion, preservation of uterine arteries during RT, or postoperative chemotherapy (p = 0.27, 1, 1, and 1, respectively). Conclusions: Our data revealed that RT influenced endometrial thickness in IVF‐ET. This was not affected by the background of the patients or perioperative management in this study. We could not reveal the underlying mechanism, but it is postulated that the transient postoperative uterine blood flow status and postoperative infections may have some effect on the endometrium. To resolve these issues, accumulation of evidences are required. We recommend informing patients about the impact of RT on IVF‐ET before starting assisted reproductive technology (ART). [ABSTRACT FROM AUTHOR]

Background: Primary ovarian insufficiency (POI) is characterized by the development of hypergonadotropic hypogonadism before 40 years of age and leads to intractable infertility. Although in vitro fertilization and embryo transfer with donated eggs enables pregnancy, not a few patients desire pregnancy using their oocytes. However, follicular development is rare and unpredictable in patients with POI. Thus, there is a need for treatments that promote the development of residual follicles and methods to accurately predict infrequent ovulation. Methods: This review discusses the effects of various treatments for obtaining eggs from POI patients. Furthermore, this study focused a potential marker for predicting follicular growth in patients with POI. Main Findings: Different treatments such as hormone‐replacement therapy, dehydroepiandrosterone supplementation, platelet‐rich plasma injection, and in vitro activation have shown varying degrees of effectiveness in retrieving oocytes from patients with POI. To predict follicle development in the cycle, elevated serum estradiol and reduced follicle‐stimulating hormone (FSH) levels are important. However, these markers are not always reliable under continuous estradiol‐replacement therapy. As a novel marker for predicting follicle growth, serum anti‐Müllerian hormone (AMH) levels, measured using the picoAMH enzyme‐linked immunosorbent assay, were found to predict follicle growth in patients and the cycle. Conclusion: This review highlights the challenges and available interventions for achieving pregnancy using a patient's oocytes in cases of POI. We believe that a combination of currently available treatments and prediction methods is the best strategy to enable patients with POI to conceive using their own eggs. Although AMH levels may predict follicle growth, further research is necessary to improve the chances of successful follicular development and conception in patients with POI. [ABSTRACT FROM AUTHOR]