To improve your chance of pregnancy in the future.
Oocyte vitrification (or oocyte freezing) is a preservation fertility treatment based on the ultrarapid freezing of eggs obtained after an ovarian stimulation.
It is indicated in:
1. Couples that don’t want to freeze surplus embryos from an IVF cycle.
2. Women who desire to postpone their maternity.
3. Before a chemotherapy or radiotherapy treatment
In vitro fertilization consists of:
1. Ovarian stimulation: is carried out after menstruation with injectable hormonal preparations (subcutaneous). This treatment is controlled with serial transvaginal ultrasound and blood tests during 6-8 days with the aim of achieving a good development of the oocytes and determining the optimum moment for their recovery.
2. Recovery of oocytes: The oocytes are collected by piercing the ovaries through the vagina, under ultrasound control, and aspirating the content of the follicles (small sacks of liquid each containing an oocyte). The follicular puncture is practiced under sedation in the operating theater, and lasts from 10 to 15 minutes. A few hours later the patient returns home, where she rests throughout the whole day.
3. Vitrification of oocytes: is carried out in the laboratory after retrieval.
The duration of treatment is 10 to 15 days and the patient can lead a normal life during the treatment. The ideal age for the vitrification of eggs is before 35. These treatment doesn´t make a change in the time of menopause
When the patient decides to use the vitrified oocytes, we will proceed to thaw them. The rate of survival after thawing (80%) is variable depending on the woman’s age at the time of vitrification and the quality of her oocytes. The oocytes will be inseminated by ICSI with the partner´s sperm (or donor sperm), to obtain embryos that may be transferred to the uterus. The rate of pregnancy for each embryo transfer, after using an average of 8 vitrified oocytes is 30-35%.