Journal of International Reproductive Health/Family Planning ›› 2023, Vol. 42 ›› Issue (1): 27-30.doi: 10.12280/gjszjk.20220439

• Case Report • Previous Articles     Next Articles

Occult LH Peak in GnRH Antagonist Protocol: A Case Report and Literature Review

WANG Ying-xin, ZHANG Ning(), XU Shu-ning   

  1. The First Clinical Medical College of Shandong University of Traditional Chinese Medicine, Jinan 250000, China (WANG Ying-xin, XU Shu-ning); The Center for Reproductive Medicine and Genetics, Shandong Provincial Hospital of Traditional Chinese Medicine, Jinan 250000, China (ZHANG Ning)
  • Received:2022-09-07 Published:2023-01-15 Online:2023-02-03
  • Contact: ZHANG Ning E-mail:ning_zhang1975@163.com

Abstract:

GnRH antagonist protocol, as a common clinical ovulation protocol, has the advantages of flexibility, economy and safety. However, the early-onset LH peak due to inadequate dosing or inappropriate timing of antagonist addition can ultimately affect pregnancy outcomes. We review the clinical data of a patient who developed an occult LH peak during the antagonist regimen. The patient showed an increased level of progesterone and a decreased level of estradiol during her ovulation with the antagonist regimen, suggesting the occurrence of an occult LH peak. She also had a premature ovulation during the oocyte retrieval procedures. In the second cycle, the long-lasting luteal phase regimen was used to effectively reduce the appearance of endogenous LH peak, and 8 eggs were successfully obtained. We also discuss the diagnosis and prevention of occult LH peak occurring in antagonist regimens in this paper.

Key words: Ovulation induction, Gonadotropin-releasing hormone, Triptorelin pamoate, Luteinizing hormone, Occult LH peak, GnRH antagonist protocol