title: Hearing loss in the shaken baby syndrome.
abstract: OBJECTIVE
  To evaluate hearing in children diagnosed with shaken baby syndrome.
  
  
  METHODS
  A retrospective study conducted in a pediatric tertiary care center between 2006 and 2012. Children diagnosed with shaken baby syndrome were included for hearing evaluation by conventional audiometry, distortion product otoacoustic emissions and auditory brainstem responses.
  
  
  RESULTS
  Twenty-eight children were included (22 boys and 6 girls). The mean age of children at presentation was 8 months (range 1-26 months) and the mean delay before audiometric evaluation was 30 months (range 1-87 months). One child was diagnosed as having a moderate sensorineural hearing loss. The tympanic membrane mobility was normal (type A) for both ears in 22 children, one child had a reduced tympanic mobility in one ear, two children had a negative pressure, one child had a functional trans-tympanic tube and test was not performed in 2 patients.
  
  
  CONCLUSIONS
  This is the first study reporting hearing loss as a possible result of shaken baby syndrome. However, further studies with larger number of children would be preferable. We recommend hearing evaluation for these children to rule out hearing loss.
authors.affiliation: Division of Otorhinolaryngology, University of Montreal, Montreal, QC, Canada.
authors.forename: Musaed
authors.initials: M
authors.lastname: Alzahrani
authors.affiliation: Department of Audiology, Sainte-Justine University Hospital, 3175 Chemin de la Côte-Sainte-Catherine, Montreal, QC H3T 1C5, Canada.
authors.forename: Justine
authors.initials: J
authors.lastname: Ratelle
authors.affiliation: Division of Otorhinolaryngology, University of Montreal, Montreal, QC, Canada.
authors.forename: Oren
authors.initials: O
authors.lastname: Cavel
authors.affiliation: Department of Pediatrics, Sainte-Justine University Hospital (CHUSJ), 3175 Chemin de la Côte-Sainte-Catherine, Montreal, QC H3T 1C5, Canada.
authors.forename: Marie
authors.initials: M
authors.lastname: Laberge-Malo
authors.affiliation: Division of Otorhinolaryngology Head & Neck Surgery, University of Montreal, Otology and Neurotology, Sainte-Justine University Hospital Center (CHUSJ) and University of Montreal Hospital Center (CHUM), Montreal, QC, Canada. Electronic address: issam.saliba@umontreal.ca.
authors.forename: Issam
authors.initials: I
authors.lastname: Saliba
mesh_terms: D017677:Age Distribution; D001299:Audiometry / Q000379:methods*; D002675:Child, Preschool; D015331:Cohort Studies; D016057:Evoked Potentials, Auditory, Brain Stem / Q000502:physiology*; D005260:Female; D005500:Follow-Up Studies; D006319:Hearing Loss, Sensorineural / Q000175:diagnosis / Q000453:epidemiology / Q000209:etiology*; D006776:Hospitals, Pediatric; D006801:Humans; D015994:Incidence; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D017084:Otoacoustic Emissions, Spontaneous / Q000502:physiology; D011792:Quebec; D012189:Retrospective Studies; D018570:Risk Assessment; D012720:Severity of Illness Index; D017678:Sex Distribution; D038642:Shaken Baby Syndrome / Q000150:complications* / Q000175:diagnosis; D062606:Tertiary Care Centers; D014432:Tympanic Membrane / Q000293:injuries
keywords: ABR; Audiometry; DPOAE; Hearing loss; Non-accidental injury; Shaken baby syndrome