Contralateral acoustic suppression of transient evoked otoacoustic emissions--activation of the medial olivocochlear system.

Medial olivocochlear pathway represents the final part of efferent acoustic pathway which comes from the superior olivary complex ending at outer hair cells. Activation of medial olivocochlear system (MOCS) alters the cochlear output decreasing the travelling wave within cochlea. Stimulation of MOCS provides protection against moderate levels of noise, encoding noise signals as well as selecting hearing attention.

[Relief of pain after tonsillo-adenoidectomy in preschool-age children ].

Relief of pain after tonsilloadenoidectomy in preschool children is the precondition of good postoperative recovery of that group of patients. The aim of this project is to study, to estimate and to relieve the pain. It focuses on dosage and ways of using medication, and establish the difference between Paracetamol and Ibuprofen i.

[The smooth tracking test and rotation stimulation test in disorders of the vestibular system caused by carbamazepine].

The examination was carried out in 10 healthy volunteers of both sexes, of the average age of 32.5 years, of the average weight of 77.4 kg.

[Correlation between auditory threshold and transitory evoked otoacoustic emissions].

The aim of this study was to compare transiently evoked otoacoustic emissions (TEOAE) and pure tone audiometry in normal hearing ears and ears with cochlear hearing loss (60 ears of 30 subjects), to obtain defined data on qualitative and quantitative correlations. We wanted to determine the reliability with which a clinical examiner could predict a typical, idealized audiometric configuration from TEOAE measurements. The results show that the presence of otoacoustic emissions drops as a function of hearing loss and that there is a highly statistically significant correlation between characteristics of otoacoustic emission (coefficient of correlation and strength of otoacoustic emissions) and hearing loss at 1000-3000 Hz frequency.