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The left umbilical artery is absent more often than the right.
Ultrasound Obstet Gynecol ; J Ultrasound Med ; 7: The principal complications of pregnancy were: The clinical significace of a single umbilical artery as an isolated arteriw on prenatal ultrasound.
A case report and review of the literature. A clue to umbilical cord complication. Am J Obstet Gynecol ; There are possible explanations for this, including technical difficulties or lack of training; failure by the sonographers to spend much time examining the cord vasculature because of a umbulical of understanding of the implications of the presence of a SUA and due to the fact that other anomalies are noted with ultrasonography before unifa presence of a SUA is confirmed and examination of the cord then becomes lower in priority.
Am J Med Genet, 43pp. Br J Obstet Gynaecol,pp.
Vascular diameter and resistance indices in normal fetuses with a single umbilical artery. Umbllical Matern Fetal Neonatal Med, 14pp. Second-trimester sonographic findings in trisomy Of the total cases with SUA detected antenatally, 12 had suspicious arterka associated.
When identified at a routine antenatal scan, the presence of a SUA should alert the sonographer and clinician of the fact that the fetus requires a more detailed examination to exclude other anomalies.
Deteção pré-natal de artéria umbilical única: qual o seu significado?
Prenatal sonographic diagnosis of single umbilical artery. Ultrasound Obstet Gynecol, 13pp. Ultrasound Obstet Gynecol, 8pp. Fetal venous circulation — an update on hemody-namics. When a afteria umbilical artery is detected, a detailed ultrasound examination is necessary to rule out associated abnormalities.
Any advice should be tailored to the particular pregnancy, taking into account other factors such as age, but we would not strongly recommend karyotyping in agreement with other authors.
J Pediatr Surg, 33pp. Abnormal ductus venosus blood flow: Arch Dis Ubica, 68pp. Pediatrics, 52pp. J Pediatr Surg ; Ultrasound Obstet Gynecol, 14pp.
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Congenital malformation, prenatal diagnosis, single umbilical artery, ultrasonography. Are you a health professional able to prescribe or dispense drugs?
The aim of this study was to assess the incidence of SUA in a selected population. Obstet Gynecol,pp. 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.
Malformations and chromosome anomalies in spontaneously aborted fetuses umbilcial single umbilical artery.
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Further training is required together with rising the awareness of the implications of this finding. The description of cases with a SUA and other anomaly recognised antenatally are shown in Table 2. The clinical significance of a single umbilical artery as an isolated finding on prenatal ultrasound. The umbilical cord twist: Prenat Diagn, 22pp.
Si continua navegando, consideramos que acepta su uso. A SUA is likely due to secondary atresia or atrophy rather than umnilical agenesis of the artery. Cytogenetic abnormalities among perinatal deaths demonstrating a single umbilical artery. Trisomy 21 is not commonly associated with a single umbilical artery. Pathology of the human placenta.