Cryo-thawed embryos obtained from conception cycles have double the implantation and pregnancy potential of those from unsuccessful cycles.

@article{ElToukhy2003CryothawedEO,
  title={Cryo-thawed embryos obtained from conception cycles have double the implantation and pregnancy potential of those from unsuccessful cycles.},
  author={Tarek A El-Toukhy and Yakoub Khalaf and Khaloud Al-Darazi and Fidelma O'Mahony and Eleanor Wharf and Alison Taylor and Peter Braude},
  journal={Human reproduction},
  year={2003},
  volume={18 6},
  pages={1313-8}
}
BACKGROUND The purpose of this study was to evaluate the influence of fresh IVF/ICSI cycle outcome on the prognosis of the related frozen embryo replacement (FER) cycle. METHODS 459 FER cycles, involving 2049 cleavage stage embryos with no or up to 10% fragmentation, were performed for which the outcome of the fresh cycle was recorded. The cycles were divided into two groups; group A included cycles in which cryopreserved embryos were obtained from fresh cycles in which conception occurred… CONTINUE READING