Cytomegalovirus bearing in children with sensorineural hearing losses.

The rate of bearing of cytomegalovirus, CMV, has been estimated in children suffering from inborn or newborn types of a sensorineural hearing loss of hard-to-severe degrees. The test group comprised 15 hearing-loss children of 3-6 years of age. The control group included accidentally selected 30 healthy children of the same age without any hearing complains.

Acoustic neuroma diagnosis.

Pure tone audiometry, PTA, has been regarded as an initial step when starting acoustic neuroma, AN, diagnostic service. If observing unilateral/asymmetrical sensorineural hearing loss, electronystagmography, ENG, and registration of auditory brainstem responses, ABRs, are instructed to perform. The measures of the methods are listed appearing particularly effective for AN detecting.

Reflection of bounce phenomenon in TEOAE in humans: dependence upon test-stimulus parameters.

The bounce phenomenon signifies an alteration of hearing after presentation of low-frequency loud tones. Generally, it implies an initial improvement and a following reduction in auditory sensitivity that reaching peaks at 1- and 3-min intervals of the post-exposure time, respectively. The dependence of the bounce upon test-stimulus parameters has been investigated in the present study.

Behavior of evoked otoacoustic emission under low-frequency tone exposure: Objective study of the bounce phenomenon in humans.

The bounce phenomenon has been investigated in humans, evaluating alterations of click evoked otoacoustic emission (EOAE) after presentation of 250-Hz frequency loud tones during 3 min. EOAE changes were manifested in initial augmentation followed by reduction, peaking at 1 and 3 min of post-exposure time, respectively. Recoveries took 5-7 min afterwards.