Universität zu Köln

Stuermer, Konrad Johannes, Foerst, Astrid, Sandmann, Pascale, Fuerstenberg, Dirk, Lang-Roth, Ruth and Walger, Martin (2017). Maturation of auditory brainstem responses in young children with congenital monaural atresia. Int. J. Pediatr. Otorhinolaryngol., 95. S. 39 - 45. CLARE: ELSEVIER IRELAND LTD. ISSN 1872-8464

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Abstract

Objective: To date, the impact of conductive hearing loss on the auditory pathway at brainstem level has only been investigated in animal studies, which showed a species-specific delay of maturation. In this study, the functional maturation of auditory brainstem response (ABR) parameters in humans with unilateral atresia of the external auditory canal was investigated. Methods: 42 newborns and toddlers ranging in age from 13 days to 11 months were included. The click evoked ABR interpeak latencies (IPL) of the atretic ears and the contralateral ears with normal hearing were evaluated. The children had no comorbidities and had never been fitted with any kind of hearing aid. The absolute latencies (AL) and IPL of a matched control group were compared to the contralateral normally hearing ears of the children with unilateral atresia. Results: The mean air-bone gap in the ears with atresia was 44 dB HL. Despite this partial acoustic deprivation, no significant difference between the IPLs of normal ears and ears with atresia could be detected. Both for AL and IPL, the differences between the normal ears and the control group were all within 1 standard deviation to the mean. Conclusion: The data showed that the monaural acoustic deprivation by a block of sound conduction does not produce any delay of functional maturation at brainstem level in this group of patients. With regard to the AL and IPL on brainstem level, no differences between the normal ears of children with unilateral atresia and children with bilateral normal hearing could be detected. (C) 2017 Elsevier B.V. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Stuermer, Konrad Johannes UNSPECIFIED UNSPECIFIED UNSPECIFIED Foerst, Astrid UNSPECIFIED UNSPECIFIED UNSPECIFIED Sandmann, Pascale UNSPECIFIED UNSPECIFIED UNSPECIFIED Fuerstenberg, Dirk UNSPECIFIED UNSPECIFIED UNSPECIFIED Lang-Roth, Ruth UNSPECIFIED UNSPECIFIED UNSPECIFIED Walger, Martin UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-235951
DOI:	10.1016/j.ijporl.2017.01.029
Journal or Publication Title:	Int. J. Pediatr. Otorhinolaryngol.
Volume:	95
Page Range:	S. 39 - 45
Date:	2017
Publisher:	ELSEVIER IRELAND LTD
Place of Publication:	CLARE
ISSN:	1872-8464
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language CONDUCTIVE HEARING-LOSS; UNILATERAL AURAL ATRESIA; SINGLE-SIDED DEAFNESS; EVOKED-POTENTIALS; GUINEA-PIGS; BINAURAL INTERACTION; SYSTEM APPLICATION; IMPAIRMENT; DEPRIVATION; DURATION Multiple languages Otorhinolaryngology; Pediatrics Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/23595