Author/Editor		Battelino, Saba; Zupančič, Janez; Žargi, Miha
Title		Električna avdiometrija pri otrocih
Translated title		Electroaudiometry in children
Type		članek
Source		Med Razgl
Vol. and No.		Letnik 39, št. Suppl 3
Publication year		2000
Volume		str. 187-90
Language		slo
Abstract		Disturbed communication with the surroundings and difficulties with self-perception make deafness one of the most severe perception disorders. The development and later routine clinical use of cochlear implants have made the rehabilitation of auditory perception in patients with sensory hearing loss (hair cell damage) with preserved function of the upper auditory pathways possible. Electroaudiometry (EAM) is one of the investigation methods for assessing the functioning of auditory pathways and the patient's ability to perceive auditory stimuli through a newly established auditory pathway. Using an electrode inserted into the external auditory canal, electrical impulses are conducted along the auditory pathway, all the way to the cerebral cortex. During the procedure an attempt is made to determine the voltage of the electric current required to evoke an auditory sensation in the patient. In view of the known fact that dysfunctional perception pathways in the central nervous system gradually deteriorate, we were interested in finding out what happens to auditory pathways in the case of congenital deafness or in patients with long-term hearing loss, especially in children who have been deaf since birth. EAM was performed from April 1997 to November 1999 on 17 children, of whom now 10 children are successful cochlear implant users.
Summary		Zaradi motenega sporazumevanja z okoljem in otežkočene zaznave samega sebe in okolice je gluhost ena izmed najhujših zaznavnih okvar. Z izdelavo in rutinsko klinično uporabo polžkovih vsadkov je pri dobrem delovanju višje ležeče slušne poti, ki sledi nedelujočim lasastim zaznavnim celicam, možna povrnitev zvočne zaznave. Elektroavdiometrija je ena izmed preiskovalnih metod, s katerimi skušamo oceniti delovanje slušne poti in zmožnost bolnika, da zazna zvok po novovzpostavljeni slušni poti. Preko v sluhovod položene elektrode dovajamo po slušni poti električne impulze vse do možganske skorje. Pri tem merimo, kako močni električni tokovi so potrebni, da bolniku povzročijo slušno zaznavo. Zaradi znanega dejstva, da nedelujoče zaznavne poti v osrednjem živčevju s časom propadejo, je zelo pomembna ocena te poti pred vsaditvijo polžkovega vsadka. Še posebej pomembno je ugotoviti delovanje slušne poti pri otrocih, predvsem pri tistih, ki so gluhi od rojstva. Elektroavdiometrijo smo od aprila leta 1997 pa do novembra leta 1999 naredili 17 otrokom, od katerih jih 10 že uspešno uporablja polžkov vsadek.
Descriptors		DEAFNESS COCHLEAR IMPLANT AUDIOMETRY INFANT CHILD AUDITORY PERCEPTION AUDITORY PERCEPTUAL DISORDERS