Circulation, Vol 53, 161-168, Copyright © 1976 by American Heart Association
RB Jaffe
The angiocardiograms of 17 patients with aortic arch interruption are
reviewed to emphasize the variations in arch interruption and origin of the
brachiocephalic vessels, and collateral circulation to the descending
aorta. Depending on the anatomical type and subtype of arch interruption,
collateral flow to the descending aorta in the presence of a stenotic or
closed ductus will be dependent on the development of intercostal
collaterals and/or the presence of retrograde flow in all brachiocephalic
vessels arising from the descending aorta. Familiarity with the potential
pathways for collateral circulation may permit differentiation into types
and subtypes on chest radiograph. Patients with Type I interruption may
have bilateral rib notching if the right subclavian artery originates
normally from the innominate artery, but will have rib notching confined to
the left side if the origin of the right subclavian artery is aberrant.
Type II or Type III interruption patients will have rib notching confined
to the right side if the right subclavian has a normal origin, but no rib
notching if the origin of the right subclavian artery is aberrant.
ARTICLES
Complete interruption of the aortic arch. 2. Characteristic angiographic features with emphasis on collateral circulation to the descending aorta
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