The examination of 135 patients with neurosensory hypoacusis and 97 otologically healthy persons has determined parameters of delayed otoacoustic emission and otoacoustic emission at the frequency of the distortion product for etiologically different forms of neurosensory hypoacusis. These parameters allowed selection of statistically significant homogeneous groups. Basing on a total of parameters of evoked otoacoustic emission in each homogeneous group and affiliation of an individual patient to one of the above groups one can identify genesis of neurosensory hypoacusis.
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