Table 1.
Developmental competence of embryos revitrified using either a closed vitrification system (CVS) or an open vitrification system (OVS) (Study 1). Data are shown ± standard error
| CVS-revitrified embryos (n = 34) | OVS-revitrified embryos (n = 32) | |
|---|---|---|
| Survival rate (%) | 100 ± 0 (34/34) | 96.9 ± 3.1 (32/32) |
| Blastulation rate, 96 h (%) | 50.0 ± 8.7 (17/34) | 50.0 ± 9.0 (16/32) |
| Good blastocysts, 96 h (%) | 32.4 ± 8.1 (11/34) | 21.9 ± 7.4 (7/32) |
| Blastulation rate, 120 h (%) | 67.6 ± 8.1 (23/34) | 56.3 ± 8.9 (18/32) |
| Good blastocysts, 120 h (%) | 47.1 ± 8.7 (16/34) | 40.6 ± 8.8 (13/32) |
| Mean number of cellsa | 136.9 ± 13.6 (n = 23) | 138.0 ± 18.3 (n = 18) |
aCell numbers of all blastocysts were counted at 120 h
There were no significant differences