Frontiers in Endocrinology (Apr 2024)

Early GnRH-agonist therapy does not negatively impact the endometrial repair process or live birth rate

  • Chen Wang,
  • Yangqin Peng,
  • Hui Chen,
  • Qinmei Wang,
  • Yu Dong,
  • Huimin Liu,
  • Yaoshan Yao,
  • Shunji Zhang,
  • Yuan Li,
  • Sufen Cai,
  • Xihong Li,
  • Ge Lin,
  • Ge Lin,
  • Ge Lin,
  • Fei Gong,
  • Fei Gong

DOI
https://doi.org/10.3389/fendo.2024.1343176
Journal volume & issue
Vol. 15

Abstract

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Study objectiveTo investigate whether different timings of GnRH-a downregulation affected assisted reproductive outcomes in infertile women with moderate-to-severe intrauterine adhesions (IUAs) accompanied by adenomyosis.DesignA retrospective case series.SettingAn assisted reproductive technology center.PatientsThe study reviewed 123 infertile women with moderate-to-severe IUAs accompanied by adenomyosis undergoing their first frozen-thawed embryo transfer (FET) cycles between January 2019 and December 2021.Measurements and main resultsThe majority of patients had moderate IUA (n=116, 94.31%). The average Basal uterine volume was 73.58 ± 36.50 cm3. The mean interval from operation to the first downregulation was 21.07 ± 18.02 days (range, 1–79 days). The mean duration of hormone replacement therapy (HRT) was 16.93 ± 6.29 days. The average endometrial thickness on the day before transfer was 10.83 ± 1.75 mm. A total of 70 women achieved clinical pregnancy (56.91%). Perinatal outcomes included live birth (n=47, 67.14%), early miscarriage (n=18, 25.71%), and late miscarriage (n=5, 7.14%). The time interval between uterine operation and the first downregulation was not a significant variable affecting live birth. Maternal age was the only risk factor associated with live birth (OR:0.89; 95% CI: 0.79–0.99, P=0.041).ConclusionsThe earlier initiation of GnRH-a to suppress adenomyosis prior to endometrial preparation for frozen embryo transfer did not negatively impact repair of the endometrium after resection.

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