The status of preimplantation genetic testing for aneuploidy (PGT-A) – A critical appraisal
Preimplantation genetic testing for aneuploidy (PGT-A) relies on extended embryo culture and trophectoderm biopsy at the blastocyst stage. Its utility is thus dependent on obtaining an adequate embryo yield and blastulation rates. i.e. before embryos can be evaluated at the blastocyst stage, they must first survive ext...