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Related Experiment Video

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Vestibular and oculomotor function in children with CP: Descriptive study.

A Almutairi1, G D Cochrane1, J B Christy1

  • 1Department of Physical Therapy, University of Alabama at Birmingham, Birmingham, AL, 35294, USA.

International Journal of Pediatric Otorhinolaryngology
|January 21, 2019
PubMed
Summary

Children with cerebral palsy (CP) show impaired central vestibular and oculomotor function, affecting balance and movement control. Peripheral vestibular function remains intact, but difficulties with eye-head coordination and upright perception are evident.

Keywords:
Cerebral palsyOculomotorVestibularVestibulo-ocular reflex

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Area of Science:

  • Neuroscience
  • Pediatrics
  • Ophthalmology

Background:

  • Cerebral palsy (CP) often impacts motor function, but the role of vestibular and oculomotor systems is less understood.
  • Understanding these systems is crucial for addressing participation and activity limitations in children with CP.

Purpose of the Study:

  • To compare vestibular/oculomotor function in children aged 7-12 with CP (GMFCS levels I-III) against typically developing peers.
  • To investigate the impact of vestibular system function on the activities and participation of children with CP.

Main Methods:

  • Tested vestibular, oculomotor, and balance function in children with CP and a control group.
  • Utilized rotary chair, infrared video goggles, smooth pursuit, optokinetic nystagmus (OKN), Vestibulo-Ocular Reflex (VOR) tests (STEP, SHA, VOR cancellation/enhancement), subjective visual vertical/horizontal (SVV/SVH), and Cervical Vestibular Evoked Myogenic Potential (C-VEMP).
  • Assessed balance using the Sensory Organization Test (SOT) and analyzed data with independent t-tests and Mann-Whitney U tests.

Main Results:

  • No significant differences in saccular function (C-VEMP), peripheral vestibular end organ function (SHA, STEP), VOR enhancement, or OKN gain between groups.
  • Children with CP exhibited significantly worse horizontal smooth pursuit gain (p=0.009).
  • Impaired central vestibular function was indicated by higher VOR cancellation gain (p<0.0001) and increased SVV/SVH variance (p<0.0001) in children with CP. Balance was compromised, with lower SOT composite, vestibular, and visual ratio scores (p<0.0001).

Conclusions:

  • Children with CP have intact peripheral vestibular function but deficits in central vestibular and oculomotor control.
  • Impairments include difficulty with eye-head movement coupling (VOR cancellation), postural control (SOT), upright perception (SVV/SVH), and smooth pursuit.
  • The severity of these central vestibular and oculomotor impairments correlates with the GMFCS level in children with CP.