Posters

Some results of study of functional statement of the visual analyser in patients with chronic vertebralbasilar insufficiency

Poster Details

First Author: L.Ramazanova RUSSIA

Co Author(s):    R. Shamratov   O. Napilova                 

Abstract Details

Purpose:

To study the functional statement of the visual analyzer in patients with chronic vertebral-basilar insufficiency.

Setting:

Astrakhan State Medical University, Ophthalmological department "Medical and sanitary unit" Gazprom-Astrakha, Russia

Methods:

Were examined 86 persons with chronic vertebral-basilar vascular insufficiency. Of these women was 58% (50 person), and men - 42% (36 person). The average of examined age was 62,2 ± 8,4 years. The control group consisted of 30 healthy individuals of appropriate age and gender. Electrophysiological study included: the definition of the electrical sensitivity and the lability of the optic nerve (ON), flicker fusion frequency, electroretinography (ERG), which included general and macular ERG.

Results:

All patients had various stages of ocular fundus changes typical for the arterial hypertension, a significant reduction in the flicker fusion frequency compared with the normal results (p<0,05). When an overall significant decrease in ERG amplitude was determined a-and b-waves, macular ERG - amplitude decrease and prolongation of the latency time of a-and bwaves compared with the control group, decreased the amplitude of oscillatory potentials. Indices of the lability and sensitivity of the optic nerve were within normal limits.

Conclusions:

Application of new electrophysiological diagnostic methods allow to identify and assess the degree of pathological changes in the visual analyzer at an early sub-clinical level of disease in violation of circulation in the vertebral-basilar basin.

Financial Disclosure:

None