Table 1 Vitrification of cleavage and blastocyst stage embryos using open and closed carriers
Cleavage Stage Vitrification | ||||||
|---|---|---|---|---|---|---|
Carrier | Total embryos (n) | Recovery (%) | Survival (%) | Blastocyst formation after 48 hour culture (%) | Total blastomeres (mean ± SD) | % DNA Damage (mean ± SD) |
Cryoloop | 60 | 100 | 100 | 95 | 81.9 ± 14.0 | 1.85 ± 2.05 |
HSV | 52 | 100 | 100 | 94 | 82.5 ± 15.6 | 2.06 ± 1.50 |
Cryotip | 67 | 85* | 100 | 98 | 78.6 ± 17.9 | 2.12 ± 2.04 |
Blastocyst Stage Vitrification | ||||||
Carrier | Total embryos (n) | Recovery (%) | Survival (%) | Re-expansion (%) | Total blastomeres (mean ± SD) | % DNA Damage ** (mean ± SD) |
Cryoloop | 44 | 100 | 100 | 100 | 86.4 ± 25.8 | 4.36 ± 2.72 |
HSV | 55 | 100 | 100 | 100 | 85.9 ± 23.7 | 3.34 ± 2.79 |
Cryotip | 52 | 75 * | 79 | 79 | 88.0 ± 19.2 | 3.41 ± 2.66 |