fresh embryo transfer
Transfer of newly created embryos during the same IVF cycle as oocyte retrieval.
Full Definition
Fresh embryo transfer involves the placement of embryos into the uterus within the same treatment cycle in which the oocytes were retrieved and fertilized, typically occurring 3-5 days after oocyte retrieval. This approach contrasts with frozen embryo transfer and was historically the standard practice in IVF. However, current trends favor freeze-all strategies in many cases to optimize endometrial receptivity and allow for comprehensive genetic testing when indicated.
Usage
Usage note: Contrast with FET (frozen embryo transfer); timing critical for success.
In Context
- "Fresh embryo transfer was performed on day 5 with a single euploid blastocyst." — IVF cycle completion report
- "The decision to proceed with fresh embryo transfer versus freeze-all was based on optimal endometrial thickness and progesterone levels." — Clinical decision documentation