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Clin Exp Obstet Gynecol. 2012;39(4):436-9.

Induction of final follicle maturation with a gonadotropin-releasing hormone agonist in women at risk of ovarian hyperstimulation syndrome undergoing gonadotropin stimulation and intrauterine insemination: proof-of-concept study.

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Department of Obstetrics and Gynecology, American University of Beirut Medical Center, Beirut, Lebanon.



To evaluate the reproductive performance and safety of gonadotropin-stimulated intrauterine insemination (IUI) cycles in women at risk for ovarian hyperstimulation syndrome (OHSS) when final follicle maturation was induced using a gonadotropin-releasing hormone (GnRH) agonist.


Thirty-three women presenting with a history of cancelled ovarian stimulation for fear of OHSS, underwent repeat gonadotropin ovarian stimulation for IUI. They were all found to be at high-risk for OHSS once more, and were counseled to receive a GnRH agonist to trigger final follicle maturation before insemination. GnRH agonist trigger of ovulation (triptorelin) was given subcutaneously every 12 hours in three repeated doses: 0.3, 0.2, 0.2 mg, respectively.


Induction with the agonist was associated with a 30.3% take-home pregnancy rate and 20% miscarriage rate. Multiple pregnancy rates were 26.7%. There were no reported cases of clinically significant moderate/severe ovarian hyperstimulation syndrome.


The use of a GnRH agonist to trigger final follicle maturation in stimulated cycles of hyper responders was associated with a favorable reproductive outcome and no incidence of OHSS. The rate of multiple pregnancies nevertheless was found to be uncontrollably elevated, raising serious concerns regarding the safety of this protocol in standard clinical practice in the context of IUI.

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