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The impact of Alpha/ESHRE consensus regarding oocytes with aggregates of smooth endoplasmic reticulum (SERa) on in vitro fertilization outcome

  • Assisted Reproduction Technologies
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Abstract

Purpose

The present study aimed to gather information on the impact of Alpha/European Society of Human Reproduction and Embryology (ESHRE) consensus regarding oocytes with aggregates of smooth endoplasmic reticulum (SERa) on in vitro fertilization outcome. In particular, we investigated if patients undergoing intracytoplasmic sperm injection (ICSI) and whose oocytes are discarded due to SERa have a higher chance of embryo transfer cancellation compared to patients without SERa oocytes.

Methods

This is a nested case–control study drawn from the cohort of women referring for in vitro fertilization with ICSI. Cases were patients showing at least one oocyte with SERa at the time of injection. Controls were subsequent patients showing no SERa oocytes and matched ratio 1:1 for age, clinical indication to in vitro fertilization (IVF), and body mass index. The main outcome was the rate of embryo transfer cancellation.

Results

The percentage of women experiencing a transfer cancellation (absence of suitable oocytes or viable embryos) in their ICSI cycle were significantly higher in cases (18 %) compared to controls (8 %) (p = 0.02); however, adjusted odds ratio for FSH and number of SERa oocytes, of follicles, of retrieved oocytes, and of inseminated oocytes were not statistically significant.

Conclusions

We have shown that the exclusion of SERa oocytes from ICSI cycles causes an increased frequency of transfer cancellation. This effect is mostly due to the reduced number of available oocytes after exclusion of SERa oocytes.

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Authors and Affiliations

  1. Ospedale Maggiore Policlinico—Infertility Unit, Fondazione IRCCS Ca’ Granda, Via Fanti 6, 20122, Milan, Italy

    Liliana Restelli, Silvia Delle Noci, Alice Mangiarini, Stefania Ferrari, Edgardo Somigliana & Alessio Paffoni

Authors
  1. Liliana Restelli
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  2. Silvia Delle Noci
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  3. Alice Mangiarini
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  4. Stefania Ferrari
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  5. Edgardo Somigliana
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  6. Alessio Paffoni
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Corresponding author

Correspondence to Alessio Paffoni.

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The authors declare that they have no conflict of interest.

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Capsule The exclusion of SERa oocytes from ICSI cycles causes an increased frequency of transfer cancellation.

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Restelli, L., Delle Noci, S., Mangiarini, A. et al. The impact of Alpha/ESHRE consensus regarding oocytes with aggregates of smooth endoplasmic reticulum (SERa) on in vitro fertilization outcome. J Assist Reprod Genet 32, 1629–1635 (2015). https://doi.org/10.1007/s10815-015-0583-2

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  • DOI: https://doi.org/10.1007/s10815-015-0583-2

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