Effects of Middle Ear Status on Rotary Chair Outcomes in Children.
Manuel Vicente, Nour El-Hidek, Jessie N Patterson and 2 others
PMID 39948724WHAT IT FOUND
In young children, middle ear dysfunction did not clearly change rotary chair phase or symmetry.
Some children with dysfunction had higher gain or phase leads, but severity did not explain them.
Key findings
01Rotary chair gain showed a significant frequency by group interaction, with higher gain in the middle ear dysfunction group at 0.04 and 0.16 Hz.
02Middle ear dysfunction did not significantly affect rotary chair phase or symmetry at the group level.
03Six children with middle ear dysfunction had abnormally high phase, but middle ear severity by tympanometry or wideband tympanometry did not explain rotary chair outcomes.
STILL TO COME
How it was doneWhat they foundWhat it means for PTs
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What it does not show
The children had incidental middle ear dysfunction found during testing, not medically diagnosed acute otitis media, so the results may not apply to children with ear pain, fever, or acute infection. Recruitment may have excluded children with known balance or vestibular concerns because the study first sought healthy controls. The study did not include spontaneous nystagmus or functional balance tests, which other studies found abnormal in children with middle ear dysfunction. Two children with middle ear dysfunction did not complete rotary chair testing at 0.16 Hz. Children with newborn hearing referral, preterm birth, neonatal intensive care unit stay, or neurological or vision concerns were excluded, so findings may not apply to those children.
The easy way to misread this
Do not read the higher gain or phase leads as proof that middle ear dysfunction harms the vestibular system. Severity did not explain the outcomes, and the children had incidental dysfunction without acute symptoms.