INDIVIDUAL CULTURE LEADS TO DECREASED BLASTULATION BUT DOES NOT AFFECT PREGNANCY OUTCOMES IN THE SETTING OF A SINGLE, VITRIFIED-WARMED EUPLOID BLASTOCYST TRANSFER

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While there is ongoing debate regarding ideal conditions in the embryology laboratory, it has been suggested that group culture protocols lead to higher quality embryos than protocols utilizing individual culture. This may be due to higher levels of beneficial embryotrophic factors in the group setting [1]. Group culture appears to result in higher rates of blastocyst formation and has been associated with improved live birth rates following fresh embryo transfers [2]. However, an evaluation of embryology and pregnancy outcomes comparing individual culture to group culture has not been performed in the setting of modern laboratory practices and freeze-all cycles.