CVS
Also written as: CVS — Chorionic Villus Sampling
Prenatal diagnostic procedure involving sampling of placental tissue (chorionic villi) for genetic analysis, typically performed between 10-13 weeks of pregnancy.
Full Definition
Chorionic villus sampling (CVS) is an invasive prenatal diagnostic test that obtains fetal genetic material by sampling chorionic villi from the placenta. The procedure can be performed either transcervically (through the cervix) or transabdominally (through the maternal abdomen) depending on placental location. CVS provides the same genetic information as amniocentesis but can be performed earlier in pregnancy, allowing for earlier decision-making. However, it cannot detect neural tube defects and carries a small risk of miscarriage.
Usage
Usage note: Always capitalize as acronym; spell out on first use in patient communications.
In Context
- "CVS was scheduled for 11 weeks gestation to allow early genetic diagnosis." — Prenatal care plan
- "The transcervical CVS procedure yielded adequate tissue for chromosomal analysis." — Procedure report