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Mild IVF using GnRH agonist long protocol is possible: Comparing stimulations with 100 IU vs. 150 IU recombinant FSH as starting dose

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Abstract

Purpose

To test the possibility of stimulating ovaries with a mild IVF approach using a GnRH agonist long protocol.

Methods

Retrospective study of 142 first IVF cycles of women aged 30 to 35 who had undergone stimulation with 100 IU or 150 IU of rFSH.

Results

The mean dose of rFSH used was smaller in the low dose compared with the high dose group (999 vs. 1343 IU; p < 0.001), obtaining comparable numbers of mature oocytes in both groups. Additionally, reducing the mean number of embryos transferred from 1.8 to 1.5 significantly decreased the twin rate in the low dose group while maintaining similar pregnancy rates in both groups.

Conclusions

It is possible to develop mild IVF using GnRH agonist long protocol in women with good prognosis. A reduced amount of rFSH and fewer transferred embryos allow for lower costs and risks of IVF without compromising the pregnancy rate.

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Acknowledgements

The authors would like to thank M Villamarín Alvarez and O. García Parra for their assistance in collecting data.

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Corresponding author

Correspondence to Sylvia Fernández-Shaw.

Additional information

Capsule Young women with good prognosis respond to 100 IU rFSH in a similar manner to 150 IU rFSH allowing for a lower cost of IVF.

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Fernández-Shaw, S., Pérez Esturo, N., Cercas Duque, R. et al. Mild IVF using GnRH agonist long protocol is possible: Comparing stimulations with 100 IU vs. 150 IU recombinant FSH as starting dose. J Assist Reprod Genet 26, 75–82 (2009). https://doi.org/10.1007/s10815-008-9289-z

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  • DOI: https://doi.org/10.1007/s10815-008-9289-z

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