Ovarian suppression treatment prior to in-vitro fertilization and embryo transfer in Chinese women with stage III or IV endometriosis
Non-randomised trial
OA: closed
CC0
⤵ 30 in-corpus citations
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Two-month GnRH agonist ovarian suppression prior to IVF significantly increased implantation rates in Chinese women with stage III/IV endometriosis compared to standard protocols.
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Abstract
OBJECTIVE: To evaluate the efficacy of a 2-month treatment with a gonadotropin-releasing hormone (GnRH) agonist prior to in-vitro fertilization in Chinese women with moderate or severe endometriosis.
METHODS: A study of 162 women surgically diagnosed as having moderate or severe endometriosis. Pituitary down-regulation was achieved with injections of a GnRH agonist prior to the IVF procedures either for 7 to 10 days in the mid-luteal phase (group 1 [standard protocol], 97 cycles in total), or for 2 months (group 2, 55 cycles), or 3 months (group 3, 75 cycles).
RESULTS: Women pretreated with a GnRH agonist for 2 or 3 months required significantly higher doses of gonadotropin for ovarian stimulation (P<0.001), and for a longer time, than those treated with the standard long protocol (P<0.05). The number of oocytes and good embryos was lower in group 3 than in groups 1 or 2 (P<0.05). The implantation rate was significantly higher in group 2 than in group 1 (P<0.02).
CONCLUSION: A 2-month treatment with a GnRH agonist prior to IVF produced a trend toward an increase in the implantation rate in a group of Chinese women with stages III and IV endometriosis.
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References (9)
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- Long-term pituitary down-regulation before in vitro fertilization (IVF) for women with endometriosis via openalex
- P-166 The effect of GnRH agonist suppression on infertility treatment outcome in patients with endometriosis via openalex
- Revised American Society for Reproductive Medicine classification of endometriosis: 1996 via openalex
Cited by (30)
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- Women with endometriosis who undergo IVF: a contemporary review of therapeutic strategies for successful outcomes 2025
- Does Gonadotropin-Releasing Hormone Agonist Administration Before Assisted Reproduction Techniques Improve Pregnancy Rates in Women With Endometriosis? 2024
- Which endometrial preparation protocol provides better pregnancy and perinatal outcomes for endometriosis patients in frozen-thawed embryo transfer cycles? A retrospective study on 1413 patients 2023
- Additional file 1 of Which endometrial preparation protocol provides better pregnancy and perinatal outcomes for endometriosis patients in frozen-thawed embryo transfer cycles? A retrospective study on 1413 patients 2023
- Additional file 1 of Which endometrial preparation protocol provides better pregnancy and perinatal outcomes for endometriosis patients in frozen-thawed embryo transfer cycles? A retrospective study on 1413 patients 2023
- Diminished Ovarian Reserve in Endometriosis: Insights from In Vitro, In Vivo, and Human Studies-A Systematic Review 2023
- Medical Management of Ovarian Endometriomas: A Systematic Review and Meta-analysis 2023
- Progestin-Primed Ovarian Stimulation Protocol for Patients With Endometrioma 2022
- Effect of GnRH agonist before IVF on outcomes in infertile endometriosis patients: a randomized controlled trial 2020
- Endometriosis related infertility. Analysis of IVF/ICSI outcome: should GNRH analogue be integrated with control ovarian stimulation? 2020
- Elevated Levels of Monocyte Chemotactic Protein-1 in the Follicular Fluid Reveals Different Populations among Women with Severe Endometriosis 2020
- The effectiveness of different down-regulating protocols on in vitro fertilization-embryo transfer in endometriosis: a meta-analysis 2020
- Continuous oral contraceptives versus long-term pituitary desensitization prior to IVF/ICSI in moderate to severe endometriosis: study protocol of a non-inferiority randomized controlled trial 2019
- Continuous oral contraceptives versus long-term pituitary desensitization prior to IVF/ICSI in moderate to severe endometriosis: study protocol of a non-inferiority randomized controlled trial 2019
- Long-term GnRH agonist therapy before in vitro fertilization (IVF) for improving fertility outcomes in women with endometriosis 2019
- Long-term GnRH agonist therapy before in vitro fertilisation (IVF) for improving fertility outcomes in women with endometriosis 2019
- A review of the risk factors, genetics and treatment of endometriosis in Chinese women: a comparative update 2018
- [Management by assisted reproductive technology in women with endometriosis: CNGOF-HAS Endometriosis Guidelines] 2018
- [Surgery for deep infiltrating endometriosis before in vitro fertilization: no benefit for fertility?] 2015
- In vitro fertilization for endometriosis-associated infertility 2015
- Impact of endometriosis and its staging on assisted reproduction outcome: systematic review and meta-analysis 2014
- Efficacy and safety of IVF/ICSI in patients with severe endometriosis after long-term pituitary down-regulation 2013
- Endometriosis and IVF: are agonists really better? Analysis of 1180 cycles with the propensity score matching 2013
- Adenomyosis reduces pregnancy rates in infertile women undergoing IVF 2012
- Endométriose et fécondation in vitro 2011
- [Assisted reproductive technologies place] 2010
- Management of deep endometriosis 2010
- Endometriosis and in vitro fertilisation: a review 2009
- Management of endometriomas in women requiring IVF: to touch or not to touch 2008
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- europepmc
- last seen: 2026-10-16T06:09:50.462052+00:00
- openalex
- last seen: 2026-06-10T17:14:06.276822+00:00
- pubmed
- last seen: 2026-10-08T21:04:54.692383+00:00
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