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Vascular abnormalities of the umbilical cord: The first source of data produces a higher incidence of SUA, as well as more frequent association with structural and genetic abnormalities and perinatal mortality.
In some cases, a free loop of the umbilical cord was viewed in cross-section and the vessels were counted.
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Two cases and review of the literature. Prenat Diagn, 10pp. Peckham CH, Yerushalmy J. Abel Salazar Porto nascerecrescer chporto.
Deteção pré-natal de artéria umbilical única: qual o seu significado?
Byrne J, Blanc WA. Ultrasound Obstet Gynecol ; Ductus venosus blodd flow velocity characteristics of fetuses with single umbilical artery. Si continua navegando, consideramos que acepta su uso. Frequency and nature of structural anomalies in fetuses with single umbilical arteries.
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Prenatal sonographic diagnosis of single umbilical artery. Thirty nine cases ateria SUA were identified during the study period. Am J Med Genet,pp. Ultrasound Obstet Gynecol, 22pp. Prenat Diagn, 20pp.
Association of umbilical venous with inferior vena cava blood flow velocities. Ul-traschall Med, 22pp. Ultrasound Obstet Gynecol, 14pp. Prognostic role of umbilical artery Doppler velocimetry in growth-restricted fetuses.
The single umbilical artery in a high-risk patient population: The etiopathogenesis, although, not definitively clarified, has been attributed to primary agenesis of umbilical cord, secondary atrophy or atresia of a previously normal umbilical artery or persistence of the original allantoic artery of the body stalk.
The clinical significance of a single umbilical artery as an isolated finding of prenatal ultrasound. Prenat Diagn, 23pp.
Int J Obstet Gynecol, 61pp. BMJ,pp.
The presence of SUA in antenatal period should alert the sonographer and clinician for the need of a detailed examination of the fetus to exclude other anomalies. Obstet Gynecol, 76pp. Of the total cases with SUA detected antenatally, 12 had suspicious malformations associated.
Of these three live born, two presented associated malformations and in one case the malformation recognized antenatally was not confirmed in postnatal period.
The principal complications of pregnancy were: Venous Dop-pler in the fetus with absent end-diastolic flow in the umbilical artery. Single umbilical artery; right or left? These findings were similar to previous reports of an increased risk of prematurity as well as birth weight below the tenth percentile in live born with single umbilical artery. Prenat Diagn, 21pp. Chromosomal abnormalities associated with a single umbilical artery.