Worldwide live births following the transfer of chromosomally “Abnormal” embryos after PGT/A: results of a worldwide web-based survey

Purpose Preimplantation genetic testing for aneuploidy (PGT-A) has become increasingly controversial since normal euploid births have been reported following transfer of embryos diagnosed as “abnormal.” There is an increasing trend in transferring “abnormal” embryos; but it is still unknown how many IVF centers transfer “abnormal” embryos and with what efficiency.