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GnRH agonist versus GnRH antagonist in ovarian stimulation: an ongoing debate.
MedLine Citation:
PMID:  23186555     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The availability of gonadotrophin-releasing hormone (GnRH) antagonists for ovarian stimulation protocols has generated many meta-analyses comparing it to GnRH agonist long protocols. These meta-analyses have yielded conflicting results for pregnancy rate, with a tendency toward a better outcome for GnRH agonists. Recently, a Cochrane review seems to have settled the conflicts by demonstrating no evidence of statistically significant differences in the rates of live births or ongoing pregnancies when comparing GnRH agonist long protocols with GnRH antagonist protocols. This paper disputes the equivalence of these two protocols as discussed in the latest meta-analysis and argue that the GnRH agonist still has a demonstrable superiority over GnRH antagonist protocols. The availability of gonadotrophin-releasing hormone (GnRH) antagonist for ovarian stimulation protocols has generated many meta-analyses comparing it to GnRH agonist long protocols. These meta-analyses have yielded conflicting results for pregnancy rate, with a tendency towards a better outcome for GnRH agonists. Recently, a Cochrane review seems to have settled the conflicts by demonstrating no evidence of statistically significant differences in the rates of live births or ongoing pregnancies when comparing GnRH agonist long protocols with GnRH antagonist protocols. In this paper, we dispute the equivalence of these two protocols as discussed in the latest meta-analysis and argue that the GnRH agonist still has a demonstrable superiority over GnRH antagonist protocols.
Authors:
Raoul Orvieto; Pasquale Patrizio
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-7
Journal Detail:
Title:  Reproductive biomedicine online     Volume:  -     ISSN:  1472-6491     ISO Abbreviation:  Reprod. Biomed. Online     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-28     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101122473     Medline TA:  Reprod Biomed Online     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Reproductive Healthcare Ltd. Published by Elsevier Ltd. All rights reserved.
Affiliation:
Department of Obstetrics and Gynecology, Barzilai Medical Center, Ashkelon, Israel; Faculty of Health Science, Ben Gurion University of the Negev, Beer Sheva, Israel. Electronic address: raoulo@barzi.health.gov.il.
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