oocyte retrieval
Pronunciation: OH-oh-site ree-TREE-val
A minimally invasive procedure to collect mature eggs from ovarian follicles for use in assisted reproductive technology.
Full Definition
Oocyte retrieval, also known as egg retrieval or follicular aspiration, is a key procedure in assisted reproductive technology (ART) cycles, including in vitro fertilization (IVF) and egg freezing. The procedure is performed after controlled ovarian stimulation has produced multiple mature follicles, typically 10-14 days after starting fertility medications. Under conscious sedation or general anesthesia, a transvaginal ultrasound-guided needle is used to aspirate follicular fluid containing the eggs from each visible follicle. The procedure usually takes 20-30 minutes and is performed as an outpatient procedure. The retrieved oocytes are then evaluated by embryologists, fertilized if indicated, and either transferred fresh, frozen for later use, or used for genetic testing. Success rates depend on factors such as maternal age, number of eggs retrieved, and egg quality.
Usage
Usage note: Part of ART terminology; distinguish from natural ovulation or other fertility procedures.
In Context
- "The patient underwent oocyte retrieval today with 12 mature eggs collected for IVF treatment." — procedure note
- "Pre-operative instructions for oocyte retrieval include fasting after midnight and arriving two hours before the scheduled procedure." — pre-procedure instructions