Blastomere movement post first cell division correlates with embryonic compaction and subsequent blastocyst formation.

ABSTRACT:

Background

Blastomere movement (BMov) occurs after the first cell division in human embryos. This movement has been suggested as a prognostic parameter for pregnancy outcome prediction following cleavage-stage embryo transfer. However, the effect of BMov on preimplantation development and pregnancy outcome after blastocyst transfer remains unclear. Therefore, this study aimed to evaluate whether BMov after the first cell division is correlated with blastocyst formation rate and live birth rate after single vitrified-warmed blastocyst transfer (SVBT).

Methods

Nine hundred and sixty-six embryos cultured in the EmbryoScope+® time-lapse system were retrospectively analyzed. The BMov type was categorized into three groups; namely, bouncing, wobbling, and twist-and-crumble. The BM

SUBMITTER: Ohata K 

PROVIDER: S-EPMC6521525 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature