Intermediate
Technical
IVT
chorionic villus sampling
Pronunciation: KORE-ee-on-ik VIL-us
Also written as: CVS — chorionic villus sampling
First-trimester diagnostic procedure sampling placental tissue for fetal genetic analysis.
Full Definition
A prenatal diagnostic technique performed between 10-13 weeks of gestation where a small sample of chorionic villi (placental tissue) is obtained for genetic analysis. The procedure can be performed either transcervically or transabdominally under ultrasound guidance. In fetal surgery planning, CVS provides earlier genetic diagnosis than amniocentesis, allowing for informed decision-making about surgical intervention options.
Usage
Usage note: Commonly abbreviated as CVS; ensure clarity when using abbreviation.
In Context
- "Chorionic villus sampling at 11 weeks revealed trisomy 21, prompting counseling about fetal surgical options." — Genetic counseling report
- "The CVS procedure was complicated by maternal bleeding requiring monitoring." — Procedural complication note
Also known as
CVS
Don't confuse with
amniocentesis
cordocentesis