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The influence of early cleavage on embryo developmental potential and IVF/ICSI outcome

  • Jing Fu
  • Xian-Jing Wang
  • Yong-Wei Wang
  • Jian Sun
  • Kristina Gemzell-Danielsson
  • Xiao-Xi SunEmail author
Assisted Reproduction

Abstract

Purpose

To observe whether early cleavage can be a predictor of embryo developmental potential, pregnancy and implantation rates.

Methods

A total of 9,544 embryos in 1,095 in vitro fertilization or intracytoplasmic sperm injection cycles were observed with regard to the appearance of early cleavage at 25–29 h post-insemination.

Results

A significantly higher proportion of excellent quality embryos were observed in the early cleavage group compared to the late cleavage group (52.5 versus 28.9%, P < 0.01). In the early cleavage group there was also a higher rate of pregnancy per transfer compared with the late cleavage group (38.7 versus 26.3%, P < 0.01). In addition, we found that transfer of only one early cleavage embryo resulted in a high pregnancy rate (38.5%) and a low multiple pregnancy rate (18.0%).

Conclusion

Early cleavage is a strong indicator of embryo quality, and may be used as an additional criterion in the selection of embryos for transfer to increase pregnancy rate and reduce multiple pregnancy rate.

Keywords

Early cleavage Embryo quality Pregnancy rate Implantation 

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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Jing Fu
    • 1
  • Xian-Jing Wang
    • 1
  • Yong-Wei Wang
    • 1
  • Jian Sun
    • 1
  • Kristina Gemzell-Danielsson
    • 2
  • Xiao-Xi Sun
    • 1
    Email author
  1. 1.IVF Centre, International Peace Maternity & Child Health HospitalJiao Tong University Medical SchoolShanghaiChina
  2. 2.Department of Woman and Child Health, Division of Obstetrics and GynecologyKarolinska InstitutetStockholmSweden

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