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  Česky / Czech version Otorinolaryngol. /Prague/, 50, 2001, No. 2, p. 95-98
 
SSEP - a New Objective Method for Examination of Hearing 
Jurovčík M., Kabelka Z., Myška P., Novák M., Kopřivová H. 

Klinika otorinolaryngologie a chirurgie hlavy a krku 2. LF UK a FN Motol, Praha, přednosta doc. MUDr. Z. Kabelka, CSc.
 


Summary:

       The purpose of this publication is to evaluate a new technology using Steady - State Evoked Potentials (SSEPs) for determining frequency - specific hearing impairment in infants and children. The authors describe the basic principles of this technique and possibilities of the methodology. The potentials are within the range of the middle latency response (MLR) and are characterised by the frequency dependence of the stimulus and evoked potential. The stimulus is amplitude and frequency modulated and is continuous. The computer equipment calculates a frequency specific objective audiogram, and is particularly useful for pediatric audiology. The techni- que evaluates tresholds between 125 - 8000 Hz at intesities of -10 - 130 dB. Early experience shows SSEP is very useful for testing very young and difficult to test individuals with hearing impairment. This method is also extremly useful in paediatric assessments for cochlear implantation due to detection of responses at low intensities. In summary this technique may allow earlier rehabilitation or cochlear implantation.

        Key words: steady state evoked response, objective audiometry, middle latency response.
       

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