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Published in: Journal of Assisted Reproduction and Genetics 11/2017

01-11-2017 | Assisted Reproduction Technologies

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

Authors: Yannis Prapas, Konstantinos Ravanos, Stamatios Petousis, Yannis Panagiotidis, Achilleas Papatheodorou, Chrysoula Margioula-Siarkou, Assunta Iuliano, Giuseppe Gullo, Nikos Prapas

Published in: Journal of Assisted Reproduction and Genetics | Issue 11/2017

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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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Metadata
Title
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
Authors
Yannis Prapas
Konstantinos Ravanos
Stamatios Petousis
Yannis Panagiotidis
Achilleas Papatheodorou
Chrysoula Margioula-Siarkou
Assunta Iuliano
Giuseppe Gullo
Nikos Prapas
Publication date
01-11-2017
Publisher
Springer US
Published in
Journal of Assisted Reproduction and Genetics / Issue 11/2017
Print ISSN: 1058-0468
Electronic ISSN: 1573-7330
DOI
https://doi.org/10.1007/s10815-017-1010-7

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