[Analysis of problems connected with formation of new social security system for workers].

The authors analyzed problems of operating system of workers' social security, among them - insurance payments are provided on basis of experts'lists of productions, work types, occupations without consideration of real work conditions on specific workplaces, health state and performance of workers. Solutions of the problems are suggested.

[Use of shortened latent auditory evoked potentials in the evaluation of the effectiveness of hearing aids].

An electrophysiological correlate of an effective enhancement of hearing aids (HA) can be emergence of a well differentiated V wave in three BERA tracings. The presence or absence of an unstable V wave is indicative of an inadequate HA enhancement; when comfortable loudness is exceeded, high-amplitude V wave with a shortened latent period (LP) as well as other waves that do not belong to BERA are recorded. An average LP value of V wave for different types of hypoacusis has been determined when the HA output is set at comfortable loudness.

[Short-latency auditory evoked potentials in patients with acoustic neuroma and relatively normal hearing].

Out of 37 patients with verified neurinoma of the vestibulocochlear nerve 11 had essentially normal hearing and showed significant disorders of BERA (of the scissors type). This proved high sensitivity of computer audiometry (CA) applied to examine patients suspected for retrocochlear lesions. It is recommended to use CA when examining patients complaining of unilateral hearing impairment in order to rule out neurinoma of the 8th cranial nerve, especially at its early stage.