[Occupational damage to the hearing-vestibular sensory system in exposure to organic solvents]

The studies concerning the effect of the chemical agents on the sensory systems and in particular the audio-vestibular, attain significant actuality in the conditions of rapid development of the chemical industry. Examination is performed on 60 workers at the age 30 to 55 years old, in contact with organic solvents: benzine, toluene, benzol, acetone, etc., which are above the maximum admissible concentrations (MAC). Detailed analyses are made on the anamnestic complaints of these category of workers. Purposeful studies are carried out: biochemical, fatty profile, lung test, acetone in urine, otoneurological, rheoencephalography, etc. Changes in the clinico-laboratory indices are established: leucocyte and erythrocyte test, fatty content, in the acetone level--in urine, otoneurological changes in the central links of the analysers, etc. These changes have stage character depending on the length of service and exposure.