Outcomes of day-1, day-3, and blastocyst cryopreserved embryo transfers.
The optimal developmental stage for cryopreserving embryos in IVF-ET remains controversial. Our study demonstrates that besides an improvement in postthaw survival rate for day-1 and blastocyst cryopreserved ET over day-3, all three groups attained statistically similar implantation, clinical pregnancy, multiple, twinning, and male gender rates.
Moragianni
Vasiliki A
VA
Department of Obstetrics and Gynecology, Abington Memorial Hospital, Abington, Pennsylvania 19001, USA.
Cohen
Jerry D
JD
Smith
Scott E
SE
Schinfeld
Jay S
JS
Somkuti
Stephen G
SG
Lee
Annette
A
Barmat
Larry I
LI
D001755:Blastocyst / Q000166:cytology* / Q000502:physiology*; D002470:Cell Survival / Q000502:physiology; D002478:Cells, Cultured; D015925:Cryopreservation / Q000379:methods; D004624:Embryo Transfer / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D011247:Pregnancy; D013997:Time Factors; D016896:Treatment Outcome