Memorias del Instituto de Investigaciones en Ciencias de la Salud
versión On-line ISSN 1812-9528
RUOTI COSP, M et al. Ultrasound markers of chromosomal defects in the first trimester of pregnancy: ductus venosus. Mem. Inst. Investig. Cienc. Salud [online]. 2008, vol.6, n.2, pp.59-66. ISSN 1812-9528.
ABSTRACT Doppler evaluation of the flow in the ductus venosus in the first trimester of pregnancy has contributed with clinical information relevant for parents counselling. Not only was effective in tracking chromosomal abnormalities such as trisomy 21, decreasing the rate of invasive procedures, but also in tracking congenital heart disease, redefining the high risk group to be subjected to early echocardiography. Also, an abnormal flow in the ductus venous linked to the nuchal translucency increased in one or both fetuses of a monochorionic pregnancy seem a sensitive combination to early trace the feto-fetal transfusion syndrome. In all these situations, the ductus venous shows to be an effective marker of cardiac dysfunction or insufficiency.
Palabras clave : ultrasound markers; first trimester; aneuploidy; ductus venosus.