text: <unk>  is a very rare heart defect in which the aorta is not completely developed. There is a gap between the ascending and descending thoracic aorta. Almost all patients also have other cardiac anomalies. It can be diagnosed with an echocardiogram. Treatment consists of open heart surgery soon after birth. Awaiting surgery, prostaglandin can be administered to keep the ductus arteriosus open, thereby allowing blood flow to the lower body.<unk>  <unk>  is a separation between the ascending and descending aortas. There are 3 types of this abnormality:
  Type A: Interruption is distal to the subclavian artery
  Type B: Interruption occurs between the second carotid and the ipsilateral subclavian arteries
  Type C: Interruption occurs between two carotid arteries.
  Each type is divided into 3 subtypes:
  Subtype 1: Normal subclavian artery
  Subtype 2: Aberrant subclavian artery
  Subtype 3: Isolated subclavian artery that arises from the ductus arteriosus.
  In addition to the type of<unk> , the following information is important for surgical planning
  Evaluation of the distance between the proximal and distal segments,
  Size of a patent ductus arteriosus
  Narrowest dimension of the left ventricular outflow tract
  Other cardiac structural abnormalities are important for surgical planning.
  A right-sided descending aorta with<unk>  interruption is almost always associated with DiGeorge syndrome.
option_0: Interrupted aortic arch
option_1: Aortic arch anomalies
option_2: Persistent truncus arteriosus
option_3: Tricuspid atresia
option_4: Single ventricle
option_5: Overriding aorta
option_6: Total anomalous pulmonary venous connection
option_7: Partial anomalous pulmonary venous connection