title: Evaluation of the effects of phototherapy on cochlear function in newborns.
abstract: OBJECTIVE
  This study aimed to evaluate any potential effects of phototherapy on cochlear function in newborns using transient evoked otoacoustic emissions (TEOAEs).
  
  
  METHODS
  Fifty-seven newborns, undergoing phototherapy for hyperbilirubinemia without any other risk factors, and a control group of 53 healthy newborns, were administered the TEOAE test prior to and following phototherapy. In the newborns undergoing phototherapy, otoacoustic emission (OAE) measurements obtained at baseline and following phototherapy were compared. Moreover, pre-phototherapy OAE measurements obtained in the newborns undergoing phototherapy were compared with the OAE measurements of the control group.
  
  
  RESULTS
  In newborns undergoing phototherapy, there was no significant difference between pre- and post-phototherapy TEOAE amplitudes, nor in the reproducibility ratios. Similarly, no difference was found in the pre-treatment measurements of amplitude and reproducibility ratios between phototherapy-receiving newborns and controls (p>0.05).
  
  
  CONCLUSIONS
  The normal TEOAE results observed in the newborns undergoing phototherapy suggest that phototherapy does not exert negative effects on the cochlea.
authors.affiliation: Department of Otolaryngology, Elazig Training and Research Hospital, Elazig, Turkey. Electronic address: drcahitpolat@yahoo.com.
authors.forename: Cahit
authors.initials: C
authors.lastname: Polat
authors.affiliation: Department of Neonatology, Elazig Training and Research Hospital, Elazig, Turkey.
authors.forename: Mustafa
authors.initials: M
authors.lastname: Aydın
authors.affiliation: Department of Otolaryngology, Elazig Training and Research Hospital, Elazig, Turkey.
authors.forename: Öner
authors.initials: Ö
authors.lastname: Sakallıoğlu
authors.affiliation: Department of Otolaryngology, Elazig Training and Research Hospital, Elazig, Turkey.
authors.forename: Abdulvahap
authors.initials: A
authors.lastname: Akyiğit
authors.affiliation: Section of Audiology, Elazig Training and Research Hospital, Elazig, Turkey.
authors.forename: Selim
authors.initials: S
authors.lastname: Ünsal
authors.affiliation: Department of Otolaryngology, Medipol University Hospital, İstanbul, Turkey.
authors.forename: Erkan
authors.initials: E
authors.lastname: Soylu
authors.affiliation: Department of Otolaryngology, Faculty of Medicine, Fırat University, Elazig, Turkey.
authors.forename: Erol
authors.initials: E
authors.lastname: Keleş
mesh_terms: D001300:Audiometry, Evoked Response; D003051:Cochlea / Q000503:physiopathology / Q000528:radiation effects*; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007567:Jaundice, Neonatal / Q000532:radiotherapy; D008297:Male; D017084:Otoacoustic Emissions, Spontaneous / Q000502:physiology / Q000528:radiation effects*; D014467:Ultraviolet Therapy / Q000009:adverse effects*
keywords: Cochlea; Hearing; Hyperbilirubinemia; Newborn; Otoacoustic emissions; Phototherapy