Oocyte Maturation: The Biology of Egg Quality and Retrieval
Understanding the biological maturation of egg cells and the surgical harvesting process.
Ovarian Stimulation Cycles
FOLLICLES UNDER STIMULATION FOR INVITRO FERTILIZATION
Oocyte maturation is a complex cellular process that begins with recruitment. In a standard IVF cycle, gonadotropin injections stimulate the development of multiple follicles. Follicle growth is tracked via ultrasound, looking for diameters of 18mm to 20mm, which suggest a mature egg cell inside.
The Maturation Trigger and Aspiration
When follicles reach maturity, a trigger injection of hCG or a GnRH agonist is administered. This trigger restarts meiosis (cell division), preparing the oocyte for fertilization. Aspiration is performed precisely 34 to 36 hours post-trigger under ultrasound guidance.
Key Takeaways
Gonadotropin injections stimulate multiple mature follicles.- Trigger injection restarts crucial meiotic division.
- Retrieval is timed at 34-36 hours post-trigger.
- Aspiration utilizes a fine needle under direct ultrasound guidance.
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Where Miracles Begin
Dedicated to bringing hope and new life to families. Under the direction of Dr. Prosper Igboeli, we combine 40+ years of clinical excellence with warm, compassionate fertility care.
