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GnRH antagonist administered twice the day before hCG trigger combined with a step-down protocol may prevent OHSS in IVF/ICSI antagonist cycles at risk for OHSS without affecting the reproductive outcomes: a prospective randomized control trial

  • Assisted Reproduction Technologies
  • Published:
Journal of Assisted Reproduction and Genetics Aims and scope Submit manuscript

Abstract

Purpose

The purpose this study is to investigate whether a double antagonist dose (0.25 mg/12 h) administered the day before hCG trigger is effective in preventing ovarian hyperstimulation syndrome (OHSS) in GnRH antagonist IVF/intracytoplasmic sperm injection (ICSI) cycles at risk for OHSS.

Methods

This is a prospective randomized control study, conducted from November 2012 to January 2016. A total of 194 patients undergoing a IVF/ICSI GnRH antagonist cycle that were at risk of OHSS and chose to proceed with embryo transfer and avoid cycle cancellation or embryo cryopreservation were allocated into two groups. The inclusion criteria consisted of a rapid rise of oestradiol ≥ 3500 pg/ml combined with ≥ 18 follicles > 11 mm in diameter without any mature follicle > 16 mm, in any day of stimulation. Overall, 97 patients (intervention group A) received a double dose of GnRH antagonist (0.25 mg/12 h) the day before hCG while 97 patients (control group B) did not. Recombinant FSH administration was tapered to 100 IU/24 h the day of the allocation in both groups.

Results

Incidence of early-onset moderate/severe OHSS was significantly lower in intervention group A compared to control group B (0 vs 12.37%, P < 0.001). Clinical pregnancy rate per cycle (50.52 vs 42.27%, P = 0.249) was not significantly different between the two groups. Oestradiol (3263.471 ± 1271.53 vs 5233 ± 1425.17, P < 0.001), progesterone (0.93 ± 0.12 vs 1.29 ± 0.14, P < 0.001) and luteinizing hormone (1.42 ± 0.31 vs 1.91 ± 0.33, P < 0.001) were significantly lower in group A the day of the hCG triggering.

Conclusion

The administration of a rescue double GnRH antagonist dose the day before hCG trigger may represent a safe alternative preventive strategy for early OHSS without affecting the reproductive outcomes.

Trial registration number

ISRCTN02750360

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Authors and Affiliations

  1. IAKENTRO Fertility Centre, Agiou Vasileiou 4, Thessaloniki, Greece

    Yannis Prapas, Konstantinos Ravanos, Stamatios Petousis, Yannis Panagiotidis, Achilleas Papatheodorou, Chrysoula Margioula-Siarkou & Nikos Prapas

  2. Azienda Ospedaliera San Carlo, Potenza, Italy

    Assunta Iuliano

  3. Dipartimento di Ostetricia e Ginecologia, Policlinico P. Giaccone-Universita degli studi di Palermo, Palermo, Italy

    Giuseppe Gullo

Authors
  1. Yannis Prapas
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  2. Konstantinos Ravanos
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  4. Yannis Panagiotidis
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  9. Nikos Prapas
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Correspondence to Stamatios Petousis.

Additional information

Trial registration number: ISRCTN02750360

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Prapas, Y., Ravanos, K., Petousis, S. et al. GnRH antagonist administered twice the day before hCG trigger combined with a step-down protocol may prevent OHSS in IVF/ICSI antagonist cycles at risk for OHSS without affecting the reproductive outcomes: a prospective randomized control trial. J Assist Reprod Genet 34, 1537–1545 (2017). https://doi.org/10.1007/s10815-017-1010-7

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  • DOI: https://doi.org/10.1007/s10815-017-1010-7

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