Влияние каротидной эндартерэктомии на функциональную активность зрительного анализатора у пациентов с хронической ишемической нейрооптикопатией, ассоциированной с гемодинамически значимым атеросклеротическим стенозом внутренней сонной артерии

Abstract

Purpose. To assess the effect of carotid endarterectomy on the functional activity of the visual analyzer, based on the registration of visually evoked potentials in patients with chronic ischemic neuroopticopathy (CIN) associated with hemodynamically significant atherosclerotic stenosis of the internal carotid artery (ICA). Material and methods. The main group included patients with CIN (20 people, 20 eyes). Their age varied from 61 to 78 years (average 70 ± 4.5 years). Men – 13 people, women – 7. Of the specialized methods, the study of visual evoked potentials (VEP) was performed. Results. By the end of the follow-up (12 months), there was a decrease in the maximum corrected visual acuity below the preoperative values and an increase in the negative dynamics of the VEP values. There was an increase in the latency of the main peak by 13.2 % compared with the control and a decrease in amplitude by 34 % during stimulation with the pattern for both 30 and 60 minutes. Conclusion. Our studies have shown that further studies are required to develop an integrated approach to the treatment of CIN associated with hemodynamically significant atherosclerotic stenosis of the ICA. Keywords: visual evoked potentials, chronic ischemic neuroopticopathy, ocular ischemic syndrome, hemodynamically significant stenosis of the internal carotid artery.