The artificial ovary: Any new step is a step forward

摘要

Several advances have come about during the last decade in the field of fertility preservation. Cryopreservation of ovarian cortex and transplantation (COC-T) is probably the most relevant technique for patients who are not eligible to undergo oocyte or embryo vitrification. This procedure minimizes time lapses before oncologic treatments and allows the preservation of fertility in young prepubertal girls for whom controlled ovarian stimulation is not a valid option. Unfortunately, COC-T is not safe when there is an increased risk of reintroduc-ing malignant cells, such as Burkitt's lymphoma or leukemia (1). At present, there is no clinical alternative for these kinds of patients to preserve their fertility, although there are several experimental approaches that aim to provide safe options.