ICSI
Pronunciation: ICK-see
Also written as: ICSI — Intracytoplasmic Sperm Injection
Assisted reproductive technique where a single sperm is directly injected into an egg.
Full Definition
Intracytoplasmic sperm injection (ICSI) is an advanced fertilization technique used in IVF where a single sperm is mechanically injected directly into the cytoplasm of a mature oocyte using a micropipette. This procedure bypasses natural fertilization barriers and is particularly useful for severe male factor infertility, previous fertilization failure, or when using frozen-thawed gametes. ICSI has revolutionized treatment options for couples with previously untreatable infertility.
Usage
Usage note: Always capitalized; pronunciation varies but 'ICK-see' is most common in clinical practice.
In Context
- "ICSI was recommended due to severe oligoasthenoteratozoospermia in the male partner." — Treatment plan documentation
- "The embryologist performed ICSI on eight mature oocytes with excellent technical success." — Laboratory procedure notes