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9 Cards in this Set

  • Front
  • Back
Coarctation of the aorta
-an abnormal constriction of the aorta close to the point of entry of the ductus arteriosus
-3:10,000 live births
-causes unclear
-defect in tunica media; later defects (proliferation) in tunica media
- preductal and postductal types
Interrupted aortic arch
-obliteration of the 4th aortic arch on the left side.
-combinded with abnormal origin of rt. subclavian.
-ductus remains open
-aorta supplies head and pulmonary a. becomes decending aorta by way of ductus with low O2 blood.
Double Aortic Arch
-failure of distal part of the right dorsal aorta to disappear
-constriction of trachea and esophagus
Right Aortic arch
-when the right fourth arch artery and dorsal aorta persist, while the left arch and aorta regress
-may pass posterior then problems swallowing and breathing
Right Subclavian arising from the arch of the aorta
-if right fourth aortic arch and right dorsal aorta cranial to the 7th interseg artery abnormally degenerate
-RT sub a. will thus arise from the left aortic arch and pass posterior to esophagus and trachea in order to reach the right arm.
-difficulty in breathing and swallowing
Patent Ductus Arteriosus
-failure of ductus to close after birth.
-oxygen rich blood will be shunted from aorta to the lungs -> pulmonary hypertension
-lead to heart failure
-substance promote closure e.g. indomethacin
-most common associated with maternal rubella infection
-common in premature babies
Double inferior vena cava
left sacrocardinal vein persists, forming an additional IVC inferior to the kidneys
Left Superior Vena cava
-persistence of the left anterior cardinal and common cardinal vein to/from a left SVC.
-thus left SVC drains into right atrium via left sinus horn
Absense of Hepatic Segment of IVC
-Right Vitelline vein does not form segment of IVC
-blood from the lower part of the body must therefore reach its destination via the azygos vein, hemiazygous and SVC