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  • left
  • 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)
  • The fourth left arch forms the arch of the aorta between the origin of the left carotid artery and the terminus of the ductus arteriosus. (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)