Subclavian artery to external carotid artery bypass graft. Improvement of cerebral blood supply
R. Berguer and R. B. Bauer
External carotid flow may contribute a substantial amount of cerebral flow
via collaterals in cases of internal carotid artery occlusion. When common
and internal carotid arteries are occluded, the distal portion of the
external carotid artery is kept open by collateral flow. Revascularization
of the external carotid by means of a bypass graft from the subclavian
artery will improve the blood flow through collateral vessels connecting
the external and internal carotid territories, and thus increase the
cerebral blood supply from the branches of the external carotid artery.
