Cells are almost non-recognised in this 3-day embryo due to its high rate of fragmentation, which is a very poor prognosis. This is considered as a marker for embryos with compromised developmental potential.
These are classified as grade V embryos, since their blastomeres are totally fragmented.
Read the full article on: Embryo Quality & Grading – Does It Affect IVF Success? ( 33).
By Edurne Martínez Sanz B.Sc., M.Sc. (senior clinical embryologist), José Muñoz Ramírez B.Sc., M.Sc., Ph.D. (senior clinical embryologist), Mark P. Trolice M.D., F.A.C.O.G., F.A.C.S., F.A.C.E. (reproductive endocrinologist), Marta Barranquero Gómez B.Sc., M.Sc. (embryologist), Zaira Salvador B.Sc., M.Sc. (embryologist) and Romina Packan (invitra staff).
Last Update: 04/01/2014
