chorionic villus sampling


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chorionic villus sampling

n. Abbr. CVS
A prenatal test to detect birth defects that is performed at an early stage of pregnancy and involves retrieval and examination of tissue from the chorionic villi. Also called chorionic villus biopsy.

chorionic villus sampling

n
(Gynaecology & Obstetrics) a method of diagnosing genetic disorders early in pregnancy by the removal by catheter through the cervix or abdomen of a tiny sample of tissue from the chorionic villi. Abbreviation: CVS

chorion′ic vil′lus sam`pling


n.
a test for detecting birth defects in early pregnancy involving examination of cells obtained from the chorionic villus. Abbr.: CVS
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.chorionic villus sampling - a prenatal test to detect birth defects at an early stage of pregnancy; tissue from the chorionic villi is assayed
biopsy - examination of tissues or liquids from the living body to determine the existence or cause of a disease
References in periodicals archive ?
1% were opposed to intermarriages of carrier and 57% believed that if carrier got married then prenatal diagnosis or Chorionic villus sampling test is necessary.
Results: Two thousand one hundred eighty-five procedures were performed (1853 amniocenteses, 326 chorionic villus sampling, and 6 cordocenteses).
Amniocentesis, chorionic villus sampling (CVS), maternal serum screening, and nuchal translucency (NT) scan have been the primary diagnostic and screening methods for chromosomal abnormalities.
Patients who have positive first-trimester screens are seen at a prenatal diagnosis center and offered genetic counseling, chorionic villus sampling, and cflDNA testing.
Also known as cell-free DNA (cfDNA) testing, NIPT has demonstrated better accuracy than conventional first-trimester screening and serum tests for the detection of fetal trisomies--aneuploidies that involve an extra chromosome--and its low false-positive rate in particular has reduced the need for more invasive, higher-risk diagnostic procedures, such as amniocentesis and chorionic villus sampling (CVS).
INTRODUCTION: Chorionic villus sampling (CVS) is the gold standard invasive procedure for first trimester prenatal diagnosis.
In contrast to invasive diagnostic tests like amniocentesis and chorionic villus sampling (CVS), that carry one to two per cent risk of causing miscarriages, Veracity does not pose any threat to the foetus, Anastassiades said.
August 8 by aspiration cytologic type "Chiba" for amniocentesis and chorionic villus sampling, are asked to send technical details, IFU if available and / or any other documentation showing the indication of use of the needle.
This new method of risk assessment has resulted in a shift to first trimester diagnostic testing by way of chorionic villus sampling (CVS) in the high-risk group of women identified by screening with nuchal translucency and serum biochemistry, and also far less diagnostic testing, which itself carries a risk of miscarriage.
However, Dr Al Hejari revealed many still chose to undergo a Chorionic Villus Sampling (CVS) test at around 11 weeks and then get an abortion if a hereditary disease was detected, often travelling abroad for the procedure - including to Saudi Arabia, Iran and Egypt.
To contain the spread of this fatal disease, his foundation also creating awareness amongst people and advised those families where already a thalassemia patients exist to do Chorionic villus sampling (CVS) test after three months of pregnancy and if the test was positive the doctors advised for abortion.