EP04.27: First trimester Trisomy 21 screening in Peru
نویسندگان
چکیده
منابع مشابه
Prospective first-trimester screening for trisomy 21 in 30,564 pregnancies.
OBJECTIVE This study was undertaken to evaluate the performance of a 1-stop clinic for first-trimester assessment of risk (OSCAR) for trisomy 21 by a combination of maternal age, fetal nuchal translucency (NT) thickness, and maternal serum-free ss- human chorionic gonadotrophin (hCG) and pregnancy-associated plasma protein-A (PAPP-A). STUDY DESIGN OSCAR was carried out in 30,564 pregnancies a...
متن کاملFirst-trimester screening for trisomy 21 using alpha-fetoprotein.
OBJECTIVE To investigate the potential value of adding maternal serum alpha-fetoprotein (AFP) to free β-human chorionic gonadotropin (β-hCG) and PAPP-A and fetal nuchal translucency (NT) thickness in first-trimester screening for trisomy 21. METHODS In this case control study, serum AFP was measured in 100 trisomy 21 and 1,500 euploid pregnancies in which screening for trisomy 21 had been per...
متن کاملSecond-trimester genetic sonography after first-trimester combined screening for trisomy 21.
OBJECTIVE The purpose of this study was to evaluate the trisomy 21 screening performance of the first-trimester combined test followed by second-trimester genetic sonography. METHODS This retrospective cohort study included all women with singleton pregnancies undergoing combined screening followed by genetic sonography at 17 to 21 weeks from January 1, 2005, to January 31, 2008. Combined tes...
متن کاملSecond-trimester screening for trisomy-21 using prefrontal space ratio.
OBJECTIVE To investigate the potential value of prefrontal space ratio (PFSR) in second-trimester screening for trisomy-21. METHODS A retrospective study utilizing stored midsagittal two-dimensional images of fetal profiles in 240 euploid and 45 trisomy-21 pregnancies at 16(+0)-23(+6) weeks' gestation. The vertical distance between the leading edge of the skull and that of the skin (D1) and t...
متن کاملFirst-trimester combined screening for trisomy 21 in a predominantly Chinese population.
OBJECTIVE To examine the effectiveness of first-trimester fetal trisomy 21 screening using a combination of maternal age, nuchal translucency thickness (NT) and maternal serum free beta-human chorionic gonadotropin (beta-hCG) and pregnancy-associated plasma protein-A (PAPP-A) levels in a predominantly Chinese population in Hong Kong. METHODS This was a prospective study over a 1.5-year period...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Ultrasound in Obstetrics & Gynecology
سال: 2019
ISSN: 0960-7692,1469-0705
DOI: 10.1002/uog.21182