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).
Read the full article on: Are implantation rates of frozen blastocysts better? ( 32).
Ricardo Navarro Martín
M.D., M.Sc., B.Sc.
Gynecologist
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.
License: 505010075
