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The possibilities of the broadband tympanometry in audiological screening at newborns and at premature newborns with the different term of a gestation are studied. In view of the presence of age restrictions to application of the classical tympanometry at a frequency of probing tone of 226 Hz at children of the first year of life application of the broadband tympanometry is reasonable. Registration of the broadband tympanometry within audiological screening of newborns and children of the first year of life and also at premature newborns with different age of a gestation increases efficiency of diagnostics and allows to reduce amount of false positive results.

Тhe aim is to study changes in the telemetry parameters of the action potential of the auditory nerve within 5 years after cochlear implantation. Тhe paper presents the results of studying the telemetry indicators of the action potential of the auditory nerve after cochlear implantation. A retrospective study of these NRT thresholds in CU was carried out in patients with CI24RE implants on electrodes 1, 6, 11, 16 and 22, obtained as a result of the ongoing rehabilitation at the Astrakhan branch of the FSBI NMRCO FMBA of Russia for 5 years. In the course of the work, the correlation of NRT indices with the CI speech processor tuning maps was noted, which patients used after programming by an audiologist-otorhinolaryngologist. We examined 14 patients with Nucleus CI24RE from the moment of the intraoperative measurement of the action potential of the auditory nerve to the moment of the last tuning session of the cochlear implantation system. Significant fluctuations in the level of stimulation to create an action potential (ECAP) were revealed in the first 3 years after CI with the greatest changes in the 1st year, as well as the stabilization of the required level of stimulation in the subsequent 4th and 5th years. The data obtained allow us to conclude that it is necessary to regularly monitor the state of the auditory nerve in the first 3 years with correction of the speech processor settings maps, due to the fact that the available amplitudes of changes are individual and require a personalized approach.

The psychogenic loss of hearing is characterized by its impairment in the absence of anatomically and physiologically significant changes. These disorders are poorly represented in the scientific literature in comparison with the organic lesions. They are especially frequently overlooked in the children and adolescents. The objective of the present review was to analyze the literature publications concerning this problem and to report two clinical observations of the pathology in question. It is concluded that the clinically significant discrepancy between the audiological symptoms and the results obtained by the objective methods for hearing evaluation should be interpreted with great caution and raise the suspicion of the disease. The diagnosis and the identification of the involved psychogenic factors are of utmost importance for the success of the treatment.

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