embryo cryopreservation
The process of freezing and storing embryos for future use in reproductive treatments.
Full Definition
Embryo cryopreservation involves the controlled freezing and storage of embryos at ultra-low temperatures, typically in liquid nitrogen at -196°C. This technique allows couples undergoing IVF to preserve excess embryos from a treatment cycle for future transfer attempts. The process requires careful protocols to prevent ice crystal formation that could damage cellular structures, often using vitrification methods for optimal survival rates.
Usage
Usage note: Distinguish from gamete preservation; refers specifically to post-fertilization embryos.
In Context
- "The clinic's embryo cryopreservation program achieved a 95% survival rate after thawing." — IVF laboratory report
- "Patients were counseled on the benefits and risks of embryo cryopreservation before beginning treatment." — Fertility counseling documentation