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Maturation of auditory brainstem responses in young children with congenital monaural atresia.

Abstract 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.
PMID
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Authors

Mayor MeshTerms
Keywords

Acoustic deprivation

Auditory brainstem response

Auditory pathway

Monaural atresia

Sound conducting hearing loss

Journal Title international journal of pediatric otorhinolaryngology
Publication Year Start




PMID- 28576530
OWN - NLM
STAT- MEDLINE
DA  - 20170603
DCOM- 20170626
LR  - 20170626
IS  - 1872-8464 (Electronic)
IS  - 0165-5876 (Linking)
VI  - 95
DP  - 2017 Apr
TI  - Maturation of auditory brainstem responses in young children with congenital
      monaural atresia.
PG  - 39-44
LID - S0165-5876(17)30045-9 [pii]
LID - 10.1016/j.ijporl.2017.01.029 [doi]
AB  - 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.
CI  - Copyright (c) 2017 Elsevier B.V. All rights reserved.
FAU - Stuermer, Konrad Johannes
AU  - Stuermer KJ
AD  - Department of Otorhinolaryngology, University of Cologne, Germany. Electronic
      address: [email protected]
FAU - Foerst, Astrid
AU  - Foerst A
AD  - Department of Otorhinolaryngology, University of Cologne, Germany.
FAU - Sandmann, Pascale
AU  - Sandmann P
AD  - Department of Otorhinolaryngology, University of Cologne, Germany.
FAU - Fuerstenberg, Dirk
AU  - Fuerstenberg D
AD  - Department of Otorhinolaryngology, University of Cologne, Germany.
FAU - Lang-Roth, Ruth
AU  - Lang-Roth R
AD  - Department of Otorhinolaryngology, University of Cologne, Germany.
FAU - Walger, Martin
AU  - Walger M
AD  - Department of Otorhinolaryngology, University of Cologne, Germany.
LA  - eng
PT  - Journal Article
DEP - 20170129
PL  - Ireland
TA  - Int J Pediatr Otorhinolaryngol
JT  - International journal of pediatric otorhinolaryngology
JID - 8003603
SB  - IM
MH  - Auditory Pathways/physiopathology
MH  - Brain Stem/physiopathology
MH  - Ear Canal/*abnormalities/physiopathology
MH  - Evoked Potentials, Auditory, Brain Stem/*physiology
MH  - Female
MH  - Hearing Loss, Conductive/*physiopathology
MH  - Humans
MH  - Infant
MH  - Infant, Newborn
MH  - Male
OTO - NOTNLM
OT  - Acoustic deprivation
OT  - Auditory brainstem response
OT  - Auditory pathway
OT  - Monaural atresia
OT  - Sound conducting hearing loss
EDAT- 2017/06/04 06:00
MHDA- 2017/06/27 06:00
CRDT- 2017/06/04 06:00
PHST- 2016/08/30 [received]
PHST- 2017/01/22 [revised]
PHST- 2017/01/26 [accepted]
AID - S0165-5876(17)30045-9 [pii]
AID - 10.1016/j.ijporl.2017.01.029 [doi]
PST - ppublish
SO  - Int J Pediatr Otorhinolaryngol. 2017 Apr;95:39-44. doi:
      10.1016/j.ijporl.2017.01.029. Epub 2017 Jan 29.