GnRH-agonist triggering for final oocyte maturation in GnRH-antagonist IVF cycles induces decreased LH pulse rate and amplitude in early luteal phase: a possible luteolysis mechanism

2016 ◽  
Author(s):  
Shahar Kol
Keyword(s):  
Oocyte Maturation ◽  
Pulse Rate ◽  
Gnrh Agonist ◽  
Luteal Phase ◽  
Gnrh Antagonist ◽  
Final Oocyte Maturation

scholarly journals GnRH agonist in association with hCG versus hCG alone for final oocyte maturation triggering in GnRH antagonist cycles

2021 ◽  
Vol 25 (2) ◽  
Author(s):  
Condesmar de Oliveira Filho ◽  
Carlos Alberto de Oliveira ◽  
Larissa Fonseca ◽  
Kelly de Souza ◽  
Moacir Rafael Radaelli
Keyword(s):  
Oocyte Maturation ◽  
Gnrh Agonist ◽  
Gnrh Antagonist ◽  
Final Oocyte Maturation

scholarly journals GnRH Agonist Ovulation Trigger in Patients Undergoing Controlled Ovarian Hyperstimulation for IVF with Stop GnRH-agonist Combined With Multidose GnRH-antagonist Protocol.

2021 ◽  
Author(s):  
Raoul Orvieto ◽  
Ravit Nahum ◽  
Judith Frei ◽  
Orit Zandman ◽  
Yulia Frenkel ◽  
...  
Keyword(s):  
Oocyte Maturation ◽  
Gnrh Agonist ◽  
Gnrh Antagonist ◽  
Study Groups ◽  
Serum Progesterone ◽  
Final Oocyte Maturation ◽  
Gnrh Agonist Trigger ◽  
Gnrh Antagonist Protocol ◽  
Agonist Trigger ◽  
Antagonist Protocol

Abstract Backround: Recently, the Stop GnRH agonist protocol has been used successfully in poor responder patients , those with poor embryos quality and those with elevated peak serum progesterone levels. The aim of the present study was to evaluate, whether GnRH-agonist trigger in patients undergoing the Stop protocol combined , will result in an optimal response/trigger, as reflected by post trigger LH >15 mIU/mL Methods: A retrospective cohort study. All consecutive women admitted to our IVF unit from February 2020 through November 2020 who reached the ovum pick-up stage. Patients triggered with GnRH-ag alone, or combined with hCG for final oocyte maturation were included in the study. LH levels were measured 12 hours post trigger.Results: Five out of the 32 patients (15.6%) demonstrated suboptimal response as reflected by LH levels <15 IU/L 12 hrs post GnRH-agonist trigger. Moreover, while no differences were observed in oocytes recovery rate, maturity or embryos quality between the different study groups, those achieving a suboptimal response to the GnRH-agonist trigger (post trigger LH <15 mIU/mL) demonstrated significantly higher number of follicles and peak estradiol levels at the day of trigger.Conclusions: The Stop GnRH-agonist combined with GnRH-antagonist protocol, enables the substitution of HCG with GnRH-ag for final oocyte maturation. However, caution should be taken in high responders, where the dual trigger with small doses of hCG (1000-1500IU) should be considered, aiming to avoid suboptimal response (post trigger LH levels <15IU/L).

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