Meaning of circulatory disturbance in vertebrobasilar system in development sensorineural hearing loss

Complete vestibulometric, audiological and otoneurological examinations were make in 60 patients from 28 till 75 years with sensory-neural hearing loss. Obtained data had compared to structural changes and hemodynamic parameters of a blood flow on vertebral arteries, to internal carotids, and also with a magnetic resonance imaging (MRI).
Perceptive cochlear-vestibular syndrome was diagnosed in 35 cases. The examination parameters of the blood flow revealed structural changes vertebral arteries: hypoplasias (24%), deformations (35%), asymmetries of diameters (32%). Occlusions and stenoses (11% and 18%) are diagnosed seldom.
In 25 cases with the central cochlear-vestibular syndrome diagnoses more rasping structural and hemodynamic changes: bilaterial deformation vertebral arteries (70%), stenoses and occlusions vertebral arteries (44%), deformation internal carotids (55%), stenosis internal carotids (43%) and occlusion internal carotids (5%).

vertebrobasilar insufficiency, vestibulometric, audiological and otoneurological examinations