Table 1.
Time Needed Before Systemic Treatments | Recommended Age | Birth Rate | Contraindications | ||
---|---|---|---|---|---|
Oocyte/embryo cryopreservation30,31 | > 14 days | Preferably ≤ 40 years | 43–62%*32 | Coagulation deficits; high risk of infection; non-compliance with the required treatments and monitoring; urgent need to start anticancer therapies | |
Ovarian tissue cryopreservation33 | 2–3 days | Preferably ≤ 36 years | About 40%34,35 | High surgical or anesthesiologic risks; high risk of ovarian malignant contamination | |
Medical gonadoprotection36 | ~ 7 days | Premenopausal, any age | ** | Non-compliance with the treatment |
Notes: *Birth rates of oocyte/embryo cryopreservation vary according to the patient’s age and the number of oocytes collected. **This strategy has been studied as a technique to preserve ovarian function and not as a method for fertility preservation; nevertheless, an increased chance of pregnancy has been described.