OP16.04: Integrated second trimester risk assessment in twin gestations previously screened in the first trimester
نویسندگان
چکیده
منابع مشابه
First trimester risk assessment for trisomy 21 in twin pregnancies combining nuchal translucency and first trimester biochemical markers.
OBJECTIVE The aim is to describe the performance of first-trimester combined risk assessment in twin pregnancies. METHODS Maternal serum free beta-human chorionic gonadotrophin and pregnancy-associated plasma protein A (PAPP-A) were determined at 8 to 12 weeks and fetal nuchal translucency (NT) was measured at 11 to 13+6 weeks. The individual risk was estimated for each fetus using the combin...
متن کاملFirst trimester fetal karyotyping in twin pregnancy.
Fetal chromosome analysis in a twin pregnancy during the first trimester is described. Problems of the reliability of tissue sampling are also discussed. The authors emphasise the advantage of direct cytogenetic analysis from the tissue specimens used for enzyme determination or DNA studies.
متن کاملCell-free DNA analysis for trisomy risk assessment in first-trimester twin pregnancies.
OBJECTIVE To examine the clinical implementation of chromosome-selective sequencing of cell-free DNA (cfDNA) in maternal blood and an algorithm that relies on the lower fetal fraction contribution of the 2 fetuses in the assessment of risk for trisomies in twin pregnancies. METHODS Risk for trisomies 21, 18 and 13 by cfDNA testing were estimated in stored plasma samples obtained at 11-13 week...
متن کاملComparing Perinatal Outcome in Twin and Singleton Pregnancies Regarding Doppler Evaluation of Uterine Artery Indices in the Second Trimester
Background: Prediction of adverse perinatal and postnatal outcomes could be possible by using ultrasound Doppler evaluation, however there are some controversies regarding this issue in the literature. The goal of present study was to evaluate predictive value of Doppler indices in single and twin pregnancies during second trimester. Materials and Methods: This prospective study was conducted i...
متن کاملPoisoning in Pregnancy Lesions in the First Trimester of Pregnancy
Lesion of toxemia in first trimester pregnancies: Lesion of toxemia of pregnancy, comprising desidual arteriolar thickening, narrowing, degeneration, and endothelial vacuolization with trophoblastic degeneration and fibrin thrombi attached to degenerated chorionic villi, were evident in 46 (14.1 per cent) of 326 induced first trimester abortioruJ. No clinical features of toxemia were present,...
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ژورنال
عنوان ژورنال: Ultrasound in Obstetrics and Gynecology
سال: 2008
ISSN: 0960-7692,1469-0705
DOI: 10.1002/uog.5789