Article
Similar outcome for cryopreserved embryo transfer following GnRH-antagonist/GnRH-agonist, GnRH-antagonist/HCG or long protocol ovarian stimulation

https://doi.org/10.1016/S1472-6483(10)60781-XGet rights and content

Abstract

The pregnancy rates after triggering of final oocyte maturation with gonadotrophin-releasing hormone (GnRH) agonist in GnRH-antagonist ovarian stimulation protocols are lower than those following triggering with human chorionic gonadotrophin (HCG). Furthermore, lower pregnancy rates following GnRH-antagonist protocols compared with long GnRH-agonist protocols have been reported. The differences might be due to an impact on oocyte number and quality or on the endometrium. If any stimulation protocol had a negative impact on oocyte quality, then further evidence of this effect would be observed following frozen–thawed embryo transfer originating from that stimulation cycle. The outcome of frozen–thawed embryo transfer was retrospectively analysed using the long protocol with triptorelin depot 3.75 mg (n = 215) or 0.1 mg/day (n = 83), or GnRH-antagonist protocol with either HCG (n = 69) or GnRH-agonist (n = 25) for final oocyte maturation. The outcomes measured were implantation rate, clinical pregnancy rate, ongoing pregnancy rate and embryo survival rate. All outcomes were similar in the four groups. It is concluded that the potential for frozen–thawed embryos to implant and develop following transfer is independent of the GnRH-analogue and the final oocyte maturation protocol used in the collection cycle. Lower IVF embryo transfer success using GnRH-antagonist/GnRH-agonist protocol does not appear to be related to an adverse effect on oocyte quality.

Section snippets

Dr Talia Eldar-Geva has been a senior physician in the IVF Unit at Shaare-Zedek Medical Center, Jerusalem, Israel, since 1999, when she returned from fellowship at Monash IVF, Melbourne, Australia. She obtained her MD and PhD degrees at the Hebrew University in Jerusalem. She is a Senior Lecturer in Obstetrics and Gynecology and Reproductive Medicine in Ben-Gurion University of the Negev. Her main research interests are focused on prognostic factors for IVF outcome, PCOS and reproductive

References (38)

  • BC Tarlatzis et al.

    Direct ovarian effects and safety aspects of GnRH agonists and antagonists

    Reproductive BioMedicine Online

    (2002)
  • K Zikopoulos et al.

    Duration of gonadotropin-releasing hormone antagonist administration does not affect the outcome of subsequent frozen–thawed cycles

    Fertility and Sterility

    (2004)
  • C Albano et al.

    Controlled ovarian stimulation with HMG: results of a prospective randomized phase III European study comparing the LHRH-antagonist Cetrorelix (Cetrotide) and the LHRH-agonist Buserelin

    Human Reproduction

    (2000)
  • H Al-Inany et al.

    GnRH antagonist in assisted reproduction: a Cochrane review

    Human Reproduction

    (2002)
  • R Babayof et al.

    Serum inhibin A, VEGF and TNFαlevels after triggering oocyte maturation with GnRH-agonist compared to hCG in women with polycystic ovaries undergoing IVF treatment: a prospective randomized trial

    Human Reproduction

    (2006)
  • NG Beckers et al.

    Nonsupplemented luteal phase characteristics after the administration of recombinant human chorionic gonadotropin, recombinant luteinizing hormone, or gonadotropin-releasing hormone (GnRH) agonist to induce final oocyte maturation in in vitro fertilization patients after ovarian stimulation with recombinant follicle-stimulating hormone and GnRH antagonist cotreatment

    Journal of Clinical Endocrinology and Metabolism

    (2003)
  • D Bodri et al.

    Comparison between a GnRH antagonist and a GnRH agonist flare-up protocol in oocyte donors: a randomized clinical trial

    Human Reproduction

    (2006)
  • BC Fauser et al.

    Endocrine profiles after triggering of final oocyte maturation with GnRH agonist after cotreatment with the GnRH antagonist ganirelix during ovarian hyperstimulation for in vitro fertilization

    The Journal of Clinical Endocrinology and Metabolism

    (2002)
  • RE Felberbaum et al.

    Hormone profiles under ovarian stimulation with human menopausal gonadotropin (hMG) and concomitant administration of the gonadotropin releasing hormone (GnRH)-antagonist Cetrorelix at different dosages

    Journal of Assisted Reproduction and Genetics

    (1996)
  • Cited by (44)

    • Euploidy rates between cycles triggered with gonadotropin-releasing hormone agonist and human chorionic gonadotropin

      2019, Fertility and Sterility
      Citation Excerpt :

      Last, we report on euploidy rates as the primary outcome, and this ultimately needs to be correlated with clinical outcome data. No difference in pregnancy rates was appreciated among our patients who underwent an FET, and prior studies evaluating frozen transfer outcomes after GnRHa vs. hCG trigger have demonstrated similar pregnancy outcomes among groups, further substantiating our results (16–18). In conclusion, this study demonstrates that during IVF, euploidy rates per embryo biopsied and per oocyte retrieved are unaffected by GnRHa trigger compared with hCG.

    • Cryopreserved embryo transfer: adjacent or non-adjacent to failed fresh long GnRH-agonist protocol IVF cycle

      2017, Reproductive BioMedicine Online
      Citation Excerpt :

      According to the long down-regulation protocol at our unit, patients were administered at mid-luteal phase either triptorelin acetate continuous release 3.75 mg i.m. (decapeptyl C.R.; Ferring Ltd, Herzliya, Israel) or triptorelin acetate 0.1 mg/day s.c. (Ferring Ltd). Following pituitary suppression, recombinant FSH (rFSH)(Gonal-F; Serono, Herzliya, Israel) and human menopausal gonadotrophin (HMG) (Menogon; Ferring Ltd) were administered daily as previously described (Eldar-Geva et al., 2007). Oocyte retrieval was performed by ultrasound-guided follicle aspiration, 36–38 h after HCG administration.

    View all citing articles on Scopus

    Dr Talia Eldar-Geva has been a senior physician in the IVF Unit at Shaare-Zedek Medical Center, Jerusalem, Israel, since 1999, when she returned from fellowship at Monash IVF, Melbourne, Australia. She obtained her MD and PhD degrees at the Hebrew University in Jerusalem. She is a Senior Lecturer in Obstetrics and Gynecology and Reproductive Medicine in Ben-Gurion University of the Negev. Her main research interests are focused on prognostic factors for IVF outcome, PCOS and reproductive endocrinology.

    View full text