Aortic arch anomalies classifications

Aortic arch anomalies Microchapters
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Associate Editor-In-Chief: Cafer Zorkun, M.D., Ph.D. [2] Keri Shafer, M.D. [3] Priyamvada Singh, MBBS [[4]]

Assistant Editor-In-Chief: Kristin Feeney, B.S. [[5]]

Classifications

There are three common classifications to the branching pattern:

1. Normal (as below) - seen in ~ 70% of patients.
2. Bovine arch - common origin of brachiocephalic and left common carotid artery - seen in approximately 15% of patients (more common in blacks)
3. Left common carotid has its origin from the brachiocephalic artery proper, rather than from a common trunk - - seen in approximately 10% of patients (also more common in blacks)

There may be additional branches that arise directly from the arch. These include:

• Thyroidea ima artery, usually between the brachiocephalic and left common carotid
• Left vertebral artery, usually between the left common carotid and the left subclavian arteries.
• Rarely the right subclavian and right common carotid arise independently.

Other major classifications: