Bilateral subclavian steal syndrome in an intensive care unit. A case report.

We report the case of a 56-year-old man who presented with arterial hypotension, lightheadedness, vomiting, a sense of tingling in his right arm, and a right-beating horizontal nystagmus. He was initially admitted to the Intensive care unit and treated with standard vasopressor agents. A neurosonological examination showed the steal phenomenon on both vertebral arteries; the neuroradiological examination revealed occlusion of the left subclavian artery and subtotal stenosis of the innominate artery.