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Vascular umbulical and resistance indices in normal fetuses with a single umbilical artery. Although the absence of one umbilical artery was first reported a century ago by Hyrtl 10the significance of a SUA has only been realized since a retrospective study by Benirschke and Brown 11 showed it was associated with increased incidence of congenital anomalies. Ultrasound Obstet Gynecol, 15pp.
Umbilical vein to artery ratio in fetuses with single umbilical artery. J Ultrasound Med, 22pp. Obstet Gynecol, 90pp.
It was a delivery at 31 weeks and the newborn presented unilateral renal agenesis. J Perinat Med, 28pp. Sonography is often able to accurately diagnose this condition, especially with the use of colour Doppler flow imaging.
Isolated single umbilical artery anomaly and the risk for congenital malformations: J Gynecol Obstet Biol Re-prod, 18pp. Although this has not been true at all centers, a study by Abuhamad et al 26 found complex congenital and chromosomal abnormalities exclusively when the left umbilical artery was absent.
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zrteria Significance of a single umbilical artery in fetuses with central nervous system malformations. Significance of a single umbilical artery in fetuses with central nervous system malformations.
Parents should be advised of the increased risks associated with the presence of a SUA and the need for extra surveillance, and it may also be advisable to counsel parents of the possibility of an associated unjca that may only be detectable after delivery. Prenatal detection of concurrent anomalies. Umbilical vein to artery ratio in fetuses with single umbilical artery.
Malformations and chromosome anomalies in spontaneously aborted fetuses with single umbilical artery. Transverse umbilical arterial diameter: Obstet Gynecol,pp. Prospective ranking of the sonographic markers for aneuploidy: Antenatal detection of single umbilical artery: Pregnancies with a single umbilical artery should be carefully monitored for evidence of fetal growth retardation.
J Gynecol Obstet Biol Reprod, 24pp.
The single umbilical artery in a high-risk patient population: A variety of methods, previously described ,25were employed by different sonographers to detect the presence of a single umbilical artery.
Obstet Gynecol, 85pp. Fetuses were evaluated in posnatal period with transfontanelar ultrasound, echocardiography, and bladder-kidney ultrasound.
Deteção pré-natal de artéria umbilical única: qual o seu significado?
Single umbilical artery and its siding in the second trimester of pregnancy: Arteeria presence of a single umbilical artery Unnica is associated with congenital fetal malformations and genetic anomalies.
The methodology used was not recorded by the sonographer at the time of the examination. J Matern Fetal Neonatal Med, 11pp. Reports of association between SUA and other anomalies have created an imperative to identify or exclude the presence of such anomalies and detailed sonography is advised for all fetuses with SUA.
Association of single umbilical artery with congenital malformations of vascular etiology.
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Fetal and funicular vascular anomalies: The prognosis of SUA fetuses is good when there is no concurrent anatomic or chromosomal abnormality. Ultrasound Obs-tet Gynecol, 21pp. BMJ,pp. During the study period there were fetuses delivered ubica 24 weeks gestation and 70 pregnancy interruption due to medical causes.
Ultrasound Obstet Gynecol, 12pp. J Matern Fetal Med, 10pp.