Prolonged blastomere movement induced by the delay of pronuclear fading and first cell division adversely affects pregnancy outcomes after fresh embryo transfer on Day 2: a time-lapse study

ConclusionsEmbryos with extended blastomere movement after the first cell division, which is associated with the delay of PN fading and first cell division, have a lower competence to initiate an ongoing pregnancy after fresh embryo transfer on day 2. Thus, blastomere movement could be a useful predictive parameter for selecting embryos at the early cleavage stage.

Source: Reproductive BioMedicine Online - December 22, 2018 Category: Reproduction Medicine Source Type: research