intracytoplasmic sperm injection
Assisted reproductive technique where a single sperm is directly injected into an egg.
Full Definition
A specialized form of in vitro fertilization where a single sperm is mechanically injected directly into the cytoplasm of an egg using a micropipette. This technique bypasses natural fertilization barriers and is used when there are severe male factor fertility issues, previous fertilization failure, or when using frozen sperm with poor motility. The procedure requires highly skilled embryologists and specialized micromanipulation equipment.
Usage
Usage note: Editors should note this is the full form of the commonly used acronym ICSI.
In Context
- "Intracytoplasmic sperm injection was performed on 12 mature oocytes." — Laboratory report
- "The couple requires intracytoplasmic sperm injection due to severe oligospermia." — Treatment recommendation