Interrupted aortic arch
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 Discussion of Interrupted aortic arch
- Interrupted aortic arch (IAA) is a separation between the ascending and descending aortas.
- 3 types:
- Type A: Interruption is distal to the subclavian artery
- Type B: Interruption occurs between the second carotid and the ipsilateral subclavian arteries
- Type C: Interurruption 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 IAA, the following information is important for surgical planningL
- 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 aortic interruption is almost always associated with DiGeorge syndrome.
 Imaging Findings for Interrupted aortic arch
- As above
 See Also
 External Links
 References for Interrupted aortic arch
- Hyun Woo Goo, In-Sook Park, Jae Kon Ko, Yong Hwue Kim, Dong-Man Seo, Tae-Jin Yun, Jeong-Jun Park, and Chong Hyun Yoon. CT of Congenital Heart Disease: Normal Anatomy and Typical Pathologic Conditions. RadioGraphics 2003 23: S147-165S.