Table 1.
Summary of the clinical data based on type of embryos transferred and PGD test performed a
| Variable | Embryos transferred | Type of PGD test performed | Total | ||||
|---|---|---|---|---|---|---|---|
| Only fresh | Only vitrified | Both fresh and vitrified | Aneuploidy screening | Single gene defects | Chromosomal translocation | ||
| Average age (mean±SD) | 38.5 ± 3.7 | 36.0 ± 4.4 | 38.3 ± 6.1 | 38.8 ± 3.5 | 34.2 ± 4.0 | 33.5 ± 2.1 | 37.2 ± 4.1 |
| PGD cycles | 4 | 9 | 8 | 14 | 5 | 2 | 21 |
| Embryos transferred | 7 | 19 | 28 | 39 | 12 | 3 | 54 |
| Average number of embryos transferred | 1.75 | 2.11 | 3.5 | 2.8 | 2.4 | 1.5 | 2.6 |
| Clinical pregnancy cycles | 3 | 5 | 4 | 9 | 1 | 2 | 12 |
| Clinical pregnancy rate per cycle (%) | 75% | 56% | 50% | 64.3% | 20.0% | 100% | 57.1% |
| Implantation rate (%) | 42.9% b | 31.6% b | 28.6% b | 35.9% | 8.3% | 66.7% | 31.5% |
| Babies born | 2 | 5 | 6 | 11 | 0 | 2 | 13 |
| Singletons | 2 | 3 | 2 | 5 | 0 | 2 | 7 |
| Twins | 0 | 1 | 2 | 3 | 0 | 0 | 3 |
aOne hundred eighty-six of the 199 embryos (93.5%) survived vitrification. Total number of fetal heart beat (FHB) and sacs in all patients were 15 and 17, respectively
bThere was no significant difference in implantation rates when only fresh, only vitrified, and a combination of fresh and vitrified embryos were transferred into the patient (P > 0.05)