Table 4.
Cycle characteristics and pregnancy outcomes for fertility preservation patients who thawed embryos.
| Patient | Age (years) | Cancer type | IVF protocol | Oocytes retrieved | 2PNs obtained | Oocytes cryopreserved | Embryos cryopreserved | Embryos thawed | Quality of embryos transferreda | Gestational carrier | Pregnancy complications | Mode of delivery | Outcome (weighting) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 26.0 | Breast | A and /L | 10 | 4 | 0 | 4 | 4 | 4cell grade 1.0; 5cell grade 1.5) | Yes | Twin gestation, preeclampsia | Caesarean | Preterm delivery at 36 weeks (2381 and 2580) |
| 2 | 34.9 | Breast | LPL | 28 | 19 | 0 | 19 | 4 | 2 cell; 5 cellb | No | Preterm labour | Vaginal | Term delivery (2920) |
| 3 | 26.8 | Breast | 1st cycle LPL | 10 | 4 | 0 | 4 | 4 | 5 cell grade 2.0; 3 cell grade 2.0 | No | Large for gestational age | Caesarean | Term delivery (4309) |
| 2nd cycle A | 18 | 10 | 0 | 10 | |||||||||
| 4 | 34.2 | Cervical | A | 8 | 7 | 0 | 7 | 4 | 4 cell grade 2.0; 4 cell grade 2.0 | Yes | None | Vaginal | Term delivery (3401) |
| 5 | 43.1 | Breast | A | 5 | 2 | 0 | 2 | 2 | 0 | – | – | – | Embryos did not survive thaw |
| 6 | 40.8 | Breast | A | 10 | 2 | 4 | 2 | 2 | 0 | – | – | – | Embryos did not cleave, oocytes still vitrified |
All patients had day-3 embryos transferred.
a
Quality assessed using the Veeck's grading system (1989).
b
Embryo grades not available.
A = antagonist; LET = letrozole; LPL = luteal-phase lupron.