Preservación de fertilidad en endometriosis: estado actual de conocimiento y papel del sistema público de salud

Oocyte vitrification in public health systems should have some cost-benefit conditions. It should be offered in cases with a real risk of ovarian reserve loss, but when there are adequate conditions to achieve an ovarian stimulation response to be able to obtain a sufficient number of oocytes. Patients with endometriosis will be candidates for vitrification if they fulfil two conditions: 1) bilateral endometrioma of more than 4 cm, or post-surgical recurrence of endometriosis, and 2)- age ≤ 35 years and ovarian reserve markers excluding low ovarian reserve (AMH > 1 ng/ml; antral follicle count > 5; FSH > 10 mg/ml). As 10 vitrified oocytes should be considered a sufficient number, a maximum of 2 cycles will be offered to reach this number. Follow-up of these cases will allow an evaluation of the efficacy and efficiency of this policy to be made in the future.