A group of American scientists at their University of Chicago conducted a study in which they studied the effect of disturbed blood flow through the carotid arteries on the development of cerebral and extra-cerebral symptoms. Of the 337 patients complaining of sudden short-term loss of vision in one eye, at 159 by ultrasound in the branches of the internal carotid artery were no deviations from the norm, 33 showed stenosis of one of the expressions of branches up to 69%, from 100 severity 70 Up to 99% and in 45 absolute obstruction arteries obstruction. Changes were detected in the arteries passing from the side of the affected eye, as reported by the Internet publication for girls and women from 14 to 35 years old Pannochka. Net Almost all patients who could not recall the details of the attack (the expected cause, time of occurrence, duration, disappearance), ultrasound examination of the pathology was not detected. A severe pain attack and, on the contrary, a complete absence of pain symptoms were equally associated with atherosclerotic carotid artery disease.

When the diameter was narrowed by more than 70%, the attack lasted from 1 to 10 minutes. The duration of pain attacks and loss of vision for about one second also indicated severe arterial stenosis. In accordance with the criteria developed by the study authors, provoking attacks with bright light and information on more than 10 episodes in the anamnesis should be regarded as the result of an absolute disruption of carotid patency.

Medicus. En.

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