Routine vestibular function assessment in children with congenital CMV: are we ready?

Congenital cytomegalovirus (cCMV) is a leading non-genetic cause of sensorineural hearing loss (SNHL) and is an important cause of neurodevelopmental delay.1,2 Vestibular hypofunction can result in gross motor delay, hypotonia, postural instability, and lack of spatial awareness. Vestibular physiotherapy and safety advice may be indicated. Studies have shown vestibular impairment to be common in children with cCMV, in both those with, and without, sensorineural hearing loss.3 Routine screening for, and appropriate management of, vestibular hypofunction in all children with hearing loss has been recommended in NICE-accredited guidelines issued by the British Association of Audiovestibular Physicians.4 One author5 has recommended that children with cCMV with and without SNHL be tested for vestibular dysfunction. However, how and when to test vestibular function in children with cCMV does not form part of standard guidance for the management of cCMV in the UK.