Hearing loss in the shaken baby syndrome

Musaed Alzahrani1, Justine Ratelle2, Oren Cavel1

  • 1Division of Otorhinolaryngology, University of Montreal, Montreal, QC, Canada.

Insights

Hearing loss may be a consequence of shaken baby syndrome. This study recommends audiological evaluations for infants diagnosed with shaken baby syndrome to detect potential hearing impairments.

Area of Science:

  • Pediatric Audiology
  • Child Abuse and Neglect

Background:

  • Shaken baby syndrome (SBS) is a severe form of abusive head trauma in infants.
  • The neurological and physical consequences of SBS are well-documented, but hearing deficits are less understood.

Purpose of the Study:

  • To investigate the prevalence and type of hearing loss in children diagnosed with shaken baby syndrome.
  • To establish baseline audiological data for this vulnerable population.

Main Methods:

  • Retrospective study at a pediatric tertiary care center (2006-2012).
  • Hearing evaluations included conventional audiometry, distortion product otoacoustic emissions (DPOAEs), and auditory brainstem responses (ABRs).

Main Results:

  • Twenty-eight children with SBS were evaluated.
  • One child presented with moderate sensorineural hearing loss.
  • Most children had normal tympanic membrane mobility, but some showed abnormalities like negative pressure.

Conclusions:

  • This study suggests a potential link between shaken baby syndrome and hearing loss.
  • Further research with larger cohorts is needed to confirm these findings.
  • Routine hearing evaluations are recommended for all children diagnosed with SBS to identify and manage hearing impairments early.
Abstract