Ultrasound-Guided Invasive Procedures in Genetic Prenatal Diagnostics
نویسندگان
چکیده
منابع مشابه
Ultrasound-Guided Invasive Procedures in Genetic Prenatal Diagnostics
There is a wide range of noninvasive screening methods that aim to identify the subgroup of fetuses that are in a high risk of chromosomal defects. Invasive procedures should be offered to women in the high-risk group identified with the highest possible detection rate and the lowest false-positive rate. The method of choice at 11 + 0 13 + 6 weeks is chorionic villus sampling. An early amniocen...
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Risk of birth defects in multiple pregnancies Frequency of monozygotic twins remains constant, while dizygotic twins become more frequent as maternal age increases. In these cases the risk that at least one fetus is aneuploid will be twice the maternal age risk for a singleton while the probability of both fetuses being involved is minimal. Dizygotic twins have a six fold increased risk that on...
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About 40 years ago, invasive prenatal diagnosis techniques were introduced in obstetrics. Initially, amniocentesis was performed followed by placentacentesis, fetoscopy, fetal blood sampling (FBS), and chorionic villus sampling (CVS). These procedures, while invading the uterine environment, have made it possible to proceed with the retrieval of biological tissue of fetal origin for analysis an...
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Pericardial effusion can lead to cardiac tamponade, which endangers an animal's life. Ultrasound-guided pericardiocentesis is used to remove abnormal liquid; however, it requires technical expertise. In veterinary medical education, the opportunity to teach this procedure to save lives during emergencies is rare; therefore, simulators are recommended for this practice. The present study aimed t...
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ژورنال
عنوان ژورنال: Donald School Journal of Ultrasound in Obstetrics and Gynecology
سال: 2011
ISSN: 0973-614X,0975-1912
DOI: 10.5005/jp-journals-10009-1189