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LCDR Richard J. Trevino, MC

Arch Otolaryngol. 1970;92(2):177-180.

Abstract
The subclavian steal syndrome is caused by a combination of the shunting of blood from a highto a low-pressure system and reduction of flow through the vertebral-basilar arteries. There are several collateral channels that may develop to circumvent proximal subclavian occlusion, the pathway chosen being the one that offers least resistance. Other hemodynamic abnormalities besides a stenosed proximal subclavian artery are probably present in the intracranial or extracranial vessels that supply the cerebral circulation. A search for correctable lesions other than subclavian stenosis should be carried out. Otolaryngologists should maintain a high index of suspicion for the syndrome when confronted with a patient with vertigo.

Author Affiliations
USN, Oakland, Calif

From the Department of Otolaryngology, Naval Hospital, Oakland, Calif.

Footnotes
Accepted for publication Feb 27, 1970.

The opinions or assertions contained herein are those of the author and are not to be construed as official or necessarily reflecting the views of the Medical Department of the Navy or the Naval Service at large.

Reprint requests to Naval Hospital, Oakland, Calif 94627 (LCDR Trevino).

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