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

Abstract

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%).

Keywords

• вертебрально-базиллярная недостаточность
• расширенное аудиологическое обследование
• акустическая рефлексометрия