Over an 8-year period (1977-1984), 1,802 otorhinolaryngological procedures were performed under controlled hypotension. Four patients showed symptoms of cerebral damage post-operatively. One patient had pre-operative unrecognized stenosis of the internal carotid artery, another a hypoplastic vertebral artery. In this female patient, the head had been strongly rotated to the side to expose the s...
