Ultrashort flare gonadotropin-releasing hormone (GnRH) agonist/GnRH antagonist protocol: a valuable tool in the armamentarium of ovulation induction for in vitro fertilization.

Fertil Steril

Department of Obstetrics and Gynecology, Hadassah Hebrew University Medical Centers, Jerusalem, Israel; Hebrew University, Jerusalem, Israel.

Published: November 2014

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http://dx.doi.org/10.1016/j.fertnstert.2014.09.003DOI Listing

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Recently, several new promising modifications have been introduced to clinical practice that may simplify and optimize IVF outcome. In the present opinion paper we present a simplified approach to controlled ovarian hyperstimulation protocol (COH), which combines the benefits of the ultrashort flare GnRH agonist/GnRH antagonist protocol and the personalized tailored mode and timing of ovulation triggering, aiming to improve IVF outcome while eliminating of severe OHSS.In patients at risk to develop severe ovarian hyperstimulation syndrome (OHSS), GnRH agonist (GnRHa) trigger if offered for final follicular maturation.

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A novel approach to normal responder patient with repeated implantation failures--a case report.

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June 2015

Infertility and IVF Unit, Department of Obstetrics and Gynecology, Chaim Sheba Medical Center (Tel Hashomer), Ramat Gan , Israel and.

We describe a case of normal responder patients with repeated implantation failure who was offered the combination of the ultrashort GnRH-ag/ GnRH-ant COH protocol, followed by endometrial injury and a subsequent natural cycle frozen-thawed embryos transfer. The patient conceived following the natural FET cycle that was supported by luteal daily progesterone, with the additional single injection of HCG and GnRH-agonist, on day of ET and 4 days later, respectively. This combined approach seems to be a valuable tool in the armamentarium for treating normal responder patients with repeated implantation failures and should be further examined in large randomized controlled trials.

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Background: This study compares the microdose flare-up protocol to the ultrashort gonadotropinreleasing hormone (GnRH) agonist flare combined with the fixed multidose GnRH antagonist protocol in poor responders undergoing ovarian stimulation.

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Objective: To evaluate, whether Gonadotropin-releasing hormone-agonist (GnRH-agonist or GnRH-ag) trigger in patients undergoing the ultrashort GnRH-ag/GnRH-antagonist (GnRH-ant) protocol is as effective as in patients at high risk to develop severe ovarian hyperstimulation syndrome (OHSS), who undergo the multidose GnRH-ant protocol.

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