GnRH agonist trigger does not always cause luteolysis: a case report.

This study reports an IVF patient with excessive ovarian response, who received gonadotrophin-releasing hormone agonist (GnRHa) triggering. Fourteen oocytes were retrieved, and one embryo transferred 2 days later. Although no further luteal support was given, close follow-up showed consistently high oestradiol and progesterone concentrations, so no exogenous luteal support was given. A clinical pregnancy was achieved without signs or symptoms of ovarian hyperstimulation syndrome. This case report highlights the importance of individual follow-up post agonist trigger.