It is not mandatory as long as the endometrium is well prepared for the transfer. However, in cases in which PGD is also performed at the blastocyst stage (5th day of development), with massive sequencing as a platform for genetic analysis, it will be mandatory to vitrify the embryos, while waiting for the cytogenetic results (10-15 days).
In cases of ovodonation, is delayed blastocyst transfer recommended?
By Ricardo Navarro Martín M.D., M.Sc., B.Sc. (gynecologist).
Last Update: 05/02/2022
Ricardo Navarro Martín
M.D., M.Sc., B.Sc.
Doctor Ricardo Navarro Martín is a specialist gynecologist in Assisted Reproduction with extensive experience. He is also an associate professor in the Department of Surgery, Gynecology and Obstetrics at the University of Zaragoza.