Transvaginal Oocyte Retrieval
Also written as: TVOR — Transvaginal Oocyte Retrieval
The ultrasound-guided procedure to collect mature oocytes from ovarian follicles through the vaginal wall.
Full Definition
Transvaginal oocyte retrieval (TVOR) is the standard procedure for collecting oocytes in IVF cycles, performed under conscious sedation or general anesthesia. The procedure involves using a transvaginal ultrasound probe with an attached needle guide to puncture each follicle and aspirate the follicular fluid containing the oocyte. The entire procedure typically takes 15-30 minutes depending on the number of follicles. Risks include bleeding, infection, and rare injury to surrounding structures. The timing of oocyte retrieval is precisely scheduled 34-36 hours after trigger injection to ensure optimal oocyte maturity. Success is measured by the number of mature oocytes retrieved relative to the number of follicles visualized during monitoring.
Usage
Usage note: Specify the number of oocytes retrieved and follicles aspirated when documenting.
In Context
- "Transvaginal oocyte retrieval yielded 14 oocytes from 16 follicles with no complications." — Procedure report
- "The patient was scheduled for transvaginal oocyte retrieval 36 hours post-trigger injection." — Surgical scheduling