Blastocyst culture and transfer in clinical assisted reproduction
Blastocyst embryo transfer improves the live-birth rate in good prognosis patients compared with cleavage-stage transfer. In unselected or poor prognosis patients, it is not proven superior to cleavage-stage transfer.
The Practice Committees of the American Society for Reproductive Medicine and the Society for Assisted Reproductive Technology
Volume 99, Issue 3, Pages 667-672, 1 March 2013
The purposes of this Practice Committee Opinion, which replaces the 2008 ASRM Practice Committee Opinion of the same name (Fertil Steril_ 2008;90:S174–7), are first, to review the literature regarding the clinical application of blastocyst transfer and second to identify the potential risks and laboratory issues related to use of this technology. This document does not apply to patients undergoing blastocyst culture and transfer for
preimplantation genetic testing/screening.