IVF: induction of ovulation in poor responders

Area of Science:

• Reproductive Endocrinology
• In Vitro Fertilization (IVF)
• Ovarian Stimulation

Background:

• Consistent failure rates in ovulation induction pose challenges for In Vitro Fertilization (IVF) programs.
• Pharmacological induction of ovulation is essential for obtaining multiple oocytes, increasing IVF success.
• Hypogonadotropic women are known to respond best to human menopausal gonadotropin (HMG) treatment.

Purpose of the Study:

• To investigate a novel method for enhancing ovarian response in IVF patients.
• To improve follicle development and oocyte yield through a modified stimulation protocol.
• To assess the efficacy of inducing a reversible hypogonadotropic state prior to superovulation.

Main Methods:

• Induced a short, reversible hypogonadotropic state in 116 IVF patients using a gonadotropin-releasing hormone agonist (Buserelin).
• Administered very high initial doses of follicle-stimulating hormone (FSH; Metrodin) to maximize ovarian response.
• Evaluated follicle growth and ovarian response in patients undergoing this modified stimulation protocol.

Main Results:

• The novel technique successfully induced satisfactory follicle growth in a significant majority of IVF patients.
• Remarkably, 70% of patients who were previously poorly responsive to HMG stimulation showed improved follicle development.
• The protocol demonstrated effectiveness in maximizing ovarian response, even in challenging patient populations.

Conclusions:

• This combined approach of LH-RH agonist and high-dose FSH is effective for superovulation in IVF.
• The technique shows promise for improving IVF outcomes, particularly in patients with diminished ovarian response.
• Inducing a reversible hypogonadotropic state offers a viable strategy to enhance ovulation induction efficacy.