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  • common
  • Persistence of the ductus may be associated with other abnormalities, and is much more common in females. (wikipedia.org)
  • fetal
  • In fetal life, this is condition is manageable because the ductus arteriosus acts as a bypass, and supports the delivery of oxygenated blood to the systemic circulation. (wikipedia.org)
  • Compared to the 50% shunting of umbilical blood through the ductus venosus found in animal experiments, the degree of shunting in the human fetus under physiological conditions is considerably less, 30% at 20 weeks, which decreases to 18% at 32 weeks, suggesting a higher priority of the fetal liver than previously realized. (wikipedia.org)
  • The pathway of fetal umbilical venous flow is umbilical vein to left portal vein to ductus venosus to inferior vena cava and eventually the right atrium. (wikipedia.org)
  • condition
  • An increase in O2 tension after birth, plus decreasing PGE2(a common prostaglandin) causes inhibition of voltage-gated potassium channels and contraction of smooth muscle(in ductus) This condition can be diagnosed by genetic testing. (wikipedia.org)
  • left
  • In the fetus, the ductus venosus (Arantius' duct after Julius Caesar Aranzi) shunts a portion of the left umbilical vein blood flow directly to the inferior vena cava. (wikipedia.org)
  • This anatomic course is important in the assessment of neonatal umbilical venous catheterization, as failure to cannulate through the ductus venosus results in malpositioned hepatic catheterization via the left or right portal veins. (wikipedia.org)