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[Fertilization in vitro: ovulation induction and oocyte harvest]
1Département de gynécologie-obstétrique et biologie de la reproduction, CHU de Nantes.
La Revue Du Praticien
|December 11, 1990
Summary
Optimizing ovulation induction with gonadotropin-releasing hormone (GnRH) analogues and gonadotropins improves in vitro fertilization (IVF) success. Monitoring serum estradiol and ovarian ultrasonography ensures timely human chorionic gonadotropin (HCG) administration for mature oocyte retrieval.
Area of Science:
- Reproductive endocrinology and infertility treatments.
Context:
- Increasing embryo transfer numbers in in vitro fertilization (IVF) correlates with higher pregnancy rates.
- Ovarian stimulation protocols are crucial for maximizing oocyte yield and improving IVF outcomes.
- Evolution of ovulation induction therapies from gonadotropins/clomifene citrate to GnRH analogues-gonadotropin combinations.
Purpose:
- To describe the advancements in ovulation induction and oocyte retrieval techniques in IVF.
- To highlight the monitoring methods and hormonal interventions used in controlled ovarian stimulation.
Summary:
- Controlled ovarian stimulation aims to increase the number of mature oocytes retrieved for IVF.
- Treatment protocols have evolved, with GnRH analogues combined with gonadotropins now preferred over older methods.
- Monitoring involves transvaginal ultrasonography and serum estradiol levels to time human chorionic gonadotropin (HCG) administration.
- Oocyte retrieval has transitioned from coelioscopy to ultrasound-guided transvaginal aspiration.
Impact:
- Improved efficiency and success rates in assisted reproductive technologies.
- Enhanced patient management through precise monitoring and timely interventions.
- Minimally invasive oocyte retrieval techniques improve patient comfort and recovery.