Ultrashort flare gonadotropin releasing hormone GnRH agonist GnRH antagonist protocol A valuable tool in the armamentarium of ovulation induction for in vitro fertilization

Raoul Orvieto, M.D., Neri Laufer, M.D.

Volume 102, Issue 5, Pages 1254-1255


Controlled ovarian hyperstimulation (COH) is considered a key factor in the success of IVF-ET because it enables the recruitment of multiple healthy fertilizable oocytes and, thereby, multiple as opposed to single ET. COH usually includes the coadministration of gonadotropins and GnRH analogues; the two most commonly used protocols are the long GnRH agonist suppressive protocol and the multiple-dose GnRH antagonist COH protocol.

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