Page 16 - ESHRE2019

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Evaluating Day 2/3 Embryos: 64-68 hours
● Number of cells - Numerical value
● % Fragmentation 0 (0%)
1 (1-10%); 2 (11-25%) 3 (26-50%); 4 (> 50%)
● Degree of asymmetry 1 None
2 Moderate 3 Severe
For example: A score of 801 = An embryo with 8-cells, 0% frag, perfect symmetry
Evaluating Day 5/6 Embryos: 112-116 hours
● Degreeofexpansion: Stage 1-9
● Sizeandshapeofinner cellular mass (ICM):
A, B, C, D
● Gradeoftrophectoderm(TE): a, b, c, d
For example: A score of 6Ad = An embryo at Stage 6, with an excellent ICM (A) & very poor TE (d)
ICM
TE