AI Article Synopsis

  • The GnRH antagonist-based ovarian stimulation protocol is becoming more popular, allowing the use of GnRH agonist for final oocyte maturation instead of the typical hCG trigger.
  • GnRH agonist triggers help prevent ovarian hyperstimulation syndrome (OHSS) but require luteal phase support to secure pregnancy due to their rapid luteolysis.
  • The review discusses optimal timing for luteal support with hCG after GnRH agonist trigger and presents guidelines for designing effective luteal phase support.

Article Abstract

Gonadotropin-releasing hormone (GnRH) antagonist-based ovarian stimulation protocol is gaining popularity. This protocol allows for the use of GnRH agonist as a trigger of final oocyte maturation, instead of the "gold standard" human chorionic gonadotropin (hCG) trigger. GnRH agonist trigger causes quick luteolysis, hence its widespread use in the context of ovarian hyperstimulation syndrome (OHSS) prevention. To secure pregnancy post GnRH agonist trigger, the luteal phase must be supplemented to counteract the luteolysis. Several luteal phase protocols post GnRH agonist trigger have been suggested, most notably based on increasing luteal luteinizing hormone (LH) activity (by adding LH or hCG). The current review aims at delineating a rationale for timing luteal support with a single hCG bolus post GnRH agonist trigger. The review also suggests a set of simple rules that must be followed when designing luteal phase support post GnRH agonist trigger.

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http://dx.doi.org/10.1159/000491088DOI Listing

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