
WHAT IS OVARIAN STIMULATION?
If you are considering IVF treatment, or a fertility specialist has recommended it, you may have come across some complex medical terms that you do not fully understand. Although the terms may sound rather daunting, it is important to understand what happens at each stage of treatment. Here we look at the first stage, ovarian stimulation.
When is ovarian stimulation used?
Ovarian stimulation is generally used: → To induce ovulation in women with ovulatory dysfunction, to help them conceive. → To retrieve eggs in IVF treatment. → To store eggs for future use.
How does ovarian stimulation work?
In a natural ovulation cycle, natural hormonal changes drive the maturation and release of the egg. In some women, however, this does not happen naturally, so medication is given to stimulate ovarian function. This makes it possible to plan every hormonal change, thereby optimising the quality of the eggs released.
Stages of IVF Treatment
- Ovarian stimulation
- Egg retrieval
- Fertilisation by ICSI/insemination/
- Embryo transfer
In the long protocol, ovarian stimulation generally begins one week before the expected date of the next period. In the antagonist protocol, stimulation begins on day two of the menstrual cycle. Hormones are given so that multiple mature eggs can be retrieved in a single egg retrieval procedure. Ovarian stimulation is achieved with injections of gonadotropins containing follicle-stimulating hormone (FSH) and luteinising hormone (LH). These stimulate the growth of multiple follicles in the ovaries. FSH injections are given for about 10 days before the patient is ready for egg retrieval. The patient is closely monitored by ultrasound during the ovarian stimulation phase. The number of follicles present is checked and their size is measured. If enough follicles larger than 17-18 mm in diameter are found, the egg retrieval procedure is scheduled. A final hCG injection is given to trigger the final maturation of the eggs. To find out more about ovarian stimulation, contact the Centre for Reproductive Medicine and Fetal Medicine – Dr. Alexandros Traianos for a consultation.
He supports scientific excellence in clinical practice and recognizes the possibilities offered by modern reproductive methods to couples who wish to have a child of their own.
His profileThe content of this article is for information only and does not replace a medical examination and advice.
