chorionic villus

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  • noun

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one of the tiny villi that stick out of the fetal chorion and combine with the mother's uterine tissue to form the placenta

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The question is whether a woman with a risk of 1:31 versus the cutoff of 1:30 would forego chorionic villus sampling and wait for second-trimester screening results.
Both chorionic villus sampling (CVS) and amniocentesis can cause cramping, and a small number of women have miscarriages following the procedures (the risk is higher with CVS, but still only about one percent).
As in singleton pregnancies, chorionic villus sampling is also used as an invasive tool for early sex determination and DNA assays in multiple pregnancies (5).
An offer of amniocentesis or chorionic villus sampling (CVS) to every pregnant woman regardless of age also should be considered, according to Dr.
The content includes diagnostic and therapeutic procedures used during pregnancy, such as ultrasound, chorionic villus sampling, amniocentesis, and fetal surgery.
Expectant mothers and their treating physicians now may have a wider range of options for balancing the risks inherent in the more invasive kinds of diagnostic testing, such as chorionic villus sampling and amnio-centesis, against the desire for such tests' near-perfect diagnostic accuracy, according to Dr.
PATIENT'S CLAIM The ObGyn did not offer amniocentesis or chorionic villus sampling (CVS), and failed to inform the parents that the chance of a 37-year-old woman having a child with a chromosomal aberration was 1.
The MLPA test results obtained in 2009 were compared with the results of amniocentesis, chorionic villus sampling and pregnancy outcome.
COPENHAGEN -- An investigational prenatal diagnostic test that uses fetal cells taken from maternal endocervical mucus could offer all the advantages of chorionic villus sampling, according to a study sponsored by Biocept Inc.
These samples were collected between 1999 and 2002, with permission, before chorionic villus sampling.
In the article, authors Sharon Miller and Jeanne Isabel discussed things like amniocentesis and chorionic villus sampling and alpha fetoprotein levels and neural tube defects and hCG -- hazy, abstract names to mothers, but important measurements to lab professionals.
Chorionic villus sampling can be done in the 10th week of pregnancy, but a bad result often means a first-trimester abortion.
The Signature Precision Panel | Prenatal diagnostic test is available to clinicians through PerkinElmer's Signature Genomics Laboratories to analyze placental tissue or amniotic fluid, extracted during a pregnant woman's chorionic villus sampling (CVS) or amniocentesis procedures, to determine whether an abnormal number of chromosomes (aneuploidies) or small losses of chromosomes (microdeletions) are present during pregnancy.
Maternal serum alpha-fetoprotein screening for neural tube defects came on the scene in the 1970s, and Down syndrome screening and chorionic villus sampling (CVS) followed in the 1980s.
At present the only other way to diagnose these diseases is to do amniocentesis or chorionic villus sampling, both of which carry a small risk of miscarriage.