Significant Improvement in Pregnancy Rates Following Frozen Embryo Transfers When Combined with Microarray-Comparative Genomic Hybridization (aCGH)

Abstract

There is a growing body of evidence that embryo transfer (ET) of vitrified blastocysts in an unstimulated cycle improves implantation rates due to a more receptive uterine environment. Evidence is also growing that 24-chromosome screening to select euploid embryos improves implantation rates. This study looks at the effect of combining these two procedures on pregnancy rates by comparing outcomes of fresh versus warmed transfers of blastocysts that were screened by aCGH and those that were not.