Fetal heart rate in trisomy 21 and other chromosomal abnormalities at 10-14 weeks of gestation
نویسندگان
چکیده
منابع مشابه
Femur and humerus length in trisomy 21 fetuses at 11-14 weeks of gestation.
OBJECTIVE To determine the value of measuring fetal femur and humerus length at 11-14 weeks of gestation in screening for chromosomal defects. METHODS Femur and humerus lengths were measured using transabdominal ultrasound in 1018 fetuses immediately before chorionic villus sampling for karyotyping at 11-14 weeks of gestation. In the group of chromosomally normal fetuses, regression analysis ...
متن کاملThe influence of fetal sex in screening for trisomy 21 by fetal nuchal translucency, maternal serum free beta-hCG and PAPP-A at 10-14 weeks of gestation.
In a study of 2923 normal pregnancies and 203 pregnancies affected by trisomy 21 we have shown a significant difference in the median MoM of the markers: fetal nuchal translucency, maternal serum free beta-hCG and PAPP-A in the presence of a female fetus compared with a male fetus. For maternal serum free beta-hCG levels are higher by 15% if the fetus is chromosomally normal and by 11% if the f...
متن کاملEar length in trisomy 21 fetuses at 11-14 weeks of gestation.
OBJECTIVE To determine the value of measuring fetal ear length at 11-14 weeks of gestation in screening for chromosomal defects. METHODS The fetal ear length was measured in 450 fetuses immediately before chorionic villus sampling for karyotyping at 11-14 weeks of gestation. RESULTS The median gestational age was 12 (range, 11-14) weeks. The fetal ear was successfully examined in all cases....
متن کاملMaxillary length at 11-14 weeks of gestation in fetuses with trisomy 21.
OBJECTIVE To determine the value of measuring maxillary length at 11-14 weeks of gestation in screening for trisomy 21. METHODS In 970 fetuses ultrasound examination was carried out for measurement of crown-rump length (CRL), nuchal translucency and maxillary length, and to determine if the nasal bone was present or absent, immediately before chorionic villus sampling for karyotyping at 11-14...
متن کاملFetal cardiac abnormalities identified prior to 14 weeks' gestation.
OBJECTIVE An increasing number of patients are presenting at early gestational age as being at high risk for congenital heart disease, as a result of ultrasound screening by nuchal translucency. The feasibility and accuracy of fetal echocardiography was assessed in a series of pregnancies studied before 14 weeks' gestation. METHODS Echocardiography was attempted in 478 fetuses of crown-rump l...
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ژورنال
عنوان ژورنال: Ultrasound in Obstetrics and Gynecology
سال: 1996
ISSN: 0960-7692
DOI: 10.1046/j.1469-0705.1996.07040239.x