Extended culture of day 3 embryos improves live birth rate in in vitro fertilization-embryo transfer

[2] However, it is difficult to precisely select embryos with EGA. [...]implantation rates remain at 20% to 30% in IVF-ET. Furthermore, embryos without an increased blastomere in the EC group also exhibited some developmental potential. [...]this strategy did not lead to a decline in cumulative live birth rates, but shortened the time for one live birth for most patients, and reduced the psychological burden and financial costs. [...]the current EC of day 3 embryos might provide a viable strategy to further improve the live birth rate during IVF-ET treatment.