Vestibular and balance dysfunction in children with congenital CMV: a systematic review

Annalie Shears1,2, Georgina Yan3,4, Harriet Mortimer5

  • 1Department of Paediatrics, Royal Manchester Children's Hospital, Manchester, UK.

Insights

Vestibular dysfunction is common in children with congenital cytomegalovirus (cCMV), affecting both symptomatic and asymptomatic cases. Early audiovestibular assessments are crucial for neurodevelopmental follow-up in these children.

Area of Science:

  • Pediatric Neurology
  • Audiology
  • Developmental Pediatrics

Background:

  • Congenital cytomegalovirus (cCMV) is a leading infectious cause of non-genetic sensorineural hearing loss.
  • Vestibular and balance dysfunction are potential sequelae of cCMV, impacting neurodevelopment.
  • Systematic evaluation of these deficits in cCMV is essential for clinical management.

Purpose of the Study:

  • To systematically review vestibular and balance dysfunction in children with cCMV.
  • To provide recommendations for clinical practice.
  • To identify future research priorities in this area.

Main Methods:

  • A comprehensive search of multiple databases (MEDLINE, Embase, etc.) was conducted up to March 2021.
  • 16 observational studies, involving 600 children with cCMV, were included and assessed using STROBE criteria.
  • Studies focused on vestibular function and balance assessments in children diagnosed with cCMV within the first three weeks of life.

Main Results:

  • Vestibular dysfunction was reported in at least 40% of children with cCMV across 10 of 12 studies that performed vestibular testing.
  • Symptomatic cCMV cases showed higher rates of vestibular dysfunction (22%-60%) compared to asymptomatic cases (0%-12.5%).
  • Two studies indicated a deterioration of vestibular function over time in affected children.

Conclusions:

  • Vestibular dysfunction is prevalent in children with cCMV, irrespective of symptomatic status or hearing loss.
  • Audiovestibular assessments should be integrated into the neurodevelopmental follow-up of all children with cCMV.
  • Further case-controlled longitudinal studies are needed to characterize vestibular dysfunction and evaluate interventions.
Abstract