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Updated: Nov 3, 2025

Fertility Preservation Through Oocyte Vitrification: Clinical and Laboratory Perspectives
Published on: September 16, 2021
Gonadotropin-Releasing Hormone Agonist Versus Recombinant Human Chorionic Gonadotropin Triggering in Fertility
Einat Haikin Herzberger1,2, Sabaa Knaneh3,4, Hadar Amir3,4
1Sara Racine In Vitro Fertilization Unit, Lis Maternity Hospital, Tel Aviv, Israel. einat.haikin@gmail.com.
Abstract:
The purpose of this research is to study the efficacy of GnRH-a versus r-hCG triggering in patients who go through fertility preservation cycles. This retrospective cohort study was performed in a tertiary university-affiliated medical center. It includes 191 patients undergoing fertility preservation cycles between May 2013 and September 2018, in which ovulation was induced by either GnRH-a or r-hCG. Main outcome measures were number and rate of mature oocyte. Among treatment cycles with medical indication, GnRH agonist significantly increases the odds for high mature rate by 3.55 (1.30-9.66), while in treatment cycles with social indication, there is no significant effect of the triggering agent. An advantage for GnRH-a triggering was observed in medically indicated preservation cycles.
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