Table 1 Morphological characteristics of vitrified/warmed embryos
| Â | Category | After warming | After overnight culture |
|---|---|---|---|
n (%) | n (%) | ||
N blastomeresa | <6 | 69 (7.0) | 26 (2.6) |
6 | 114 (11.5) | 35 (3.5) | |
7 | 206 (20.9) | 61 (6.2) | |
8 | 315 (32.0) | 105 (10.6) | |
9 | 133 (13.5) | 99 (10.0) | |
>9 | 149 (15.1) | 356 (36.1) | |
M/EB | - | 304 (30.8) | |
Fragmentationb | 0Â % | 306 (31.0) | 165 (16.7) |
1–10 % | 494 (50.1) | 356 (36.1) | |
10–25 % | 175 (17.7) | 148 (15.0) | |
>25Â % | 6 (0.6) | 13 (1.3) | |
M/EB | 4 (0.4) | 304 (30.8) | |
Symmetryb | >75Â % | 224 (22.7) | 76 (7.7) |
75–50 % | 558 (56.6) | 365 (37.1) | |
<50Â % | 200 (20.3) | 241 (24.4) | |
M/EB | 4 (0.4) | 304 (30.8) |