Assessing Embryo Morphology to Enhance Successful Selection and Transfer

Abstract

Improvements in embryo culture systems have not only resulted in significant increases in implantation and pregnancy rates but also assisted the routine culture of viable human embryos in the IVF laboratory for up to six days [Reference Wale and Gardner1–Reference Quinn4]. This opportunity provided the patient the possibility of transferring embryos at any stage during the preimplantation period. Whichever stage of development and day of transfer is adopted as routine for a particular clinic, the transfer of just one embryo to the uterus following IVF has become a priority objective of assisted human reproduction in order to significantly decrease multiple pregnancy rates and associated medi..