P01.23: Fetal nasal bone hypoplasia for ultrasound screening of chromosomal aneuploidy in high-risk pregnancy
نویسندگان
چکیده
منابع مشابه
Screening for Fetal Aneuploidy
Aneuploidy is defined as having one or more extra or missing chromosomes, leading to an unbalanced chromosome number in a cell. Because each chromosome consists of hundreds of genes, the loss or gain of large chromosomal segments disrupts significant amounts of genetic material and often results in a nonviable pregnancy or offspring that may not survive after birth. In the case of a surviving n...
متن کاملFetal nuchal translucency: ultrasound screening for chromosomal defects in first trimester of pregnancy.
OBJECTIVE To examine the significance of fetal nuchal translucency at 10-14 weeks' gestation in the prediction of abnormal fetal karyotype. DESIGN Prospective screening study. SETTING The Harris Birthright Research Centre for Fetal Medicine, King's College Hospital, London. SUBJECTS 827 fetuses undergoing first trimester karyotyping by amniocentesis or chorionic villus sampling. MAIN OU...
متن کاملEvaluating the efficiency of using second-trimester nasal bone hypoplasia as a single or a combined marker for fetal aneuploidy.
OBJECTIVE Although second-trimester nasal bone (NB) hypoplasia has been associated with fetal aneuploidy, its role as a single marker is still uncertain. Our objective was to evaluate the efficiency of NB hypoplasia as an independent marker for fetal aneuploidy. METHODS This was a prospective cohort study of women undergoing an anatomic survey between 16 and 22 weeks' gestation. The fetal NB ...
متن کاملassessemnt of nasal bone in first trimester screening for chromosomal abnormalities in khuzestan
background: fetal nasal bone assessment is a non-invasive procedure that helps provide even greater assurance to patients undergoing their first trimester risk assessment for aneuploidies. absence or presence of this factor is different in some races. objective: the study was aimed to evaluate nasal bone in the first trimester of pregnancy in the indigenous population of khuzestan province, and...
متن کاملP-226: Non-Invasive Prenatal Screening for Fetal Chromosomal Anomalies in South of Iran
Background: Prenatal diagnosis for Fetal Chromosomal anomalies currently relies on assessment of risk followed by a combination of biochemical and nuchal translucency. Trisomy 21 is the most common trisomy that is associated with intellectual disability. Pregnant women who receive a prenatal diagnosis of trisomy 21 currently have the option of continuing or terminating their pregnancy, but no f...
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ژورنال
عنوان ژورنال: Ultrasound in Obstetrics and Gynecology
سال: 2005
ISSN: 0960-7692
DOI: 10.1002/uog.2257