Abstract
A comprehensive understanding of the mechanism underlying vertigo is essential to elucidate the reciprocal causal relationship between laryn-gopharyngeal reflux and Eustachian tube obstruction.
Highlights
Eustachian tube dysfunction (ETD) can lead to a loss of vestibular function and eventually give rise to peripheral vestibular loss [1]
Eustachian tube dysfunction is typically defined as a failure of the functional valve of the Eustachian tube to open and/or close properly. (note that a patulous Eustachian tube, which is a common condition, has different clinical characteristics.) Vertigo from ETD can be explained by a pressure increase that occurs within a vestibular organ
It is very likely that dysfunction of the Eustachian tube disturbs the air pressure in the middle ear cavity and stimulates the perilymph, which interferes with balance, which is normally maintained by the labyrinthine mechanism [2]
Summary
Eustachian tube dysfunction (ETD) can lead to a loss of vestibular function and eventually give rise to peripheral vestibular loss [1]. (note that a patulous (chronically patent) Eustachian tube, which is a common condition, has different clinical characteristics.) Vertigo from ETD can be explained by a pressure increase that occurs within a vestibular organ. It is very likely that dysfunction of the Eustachian tube disturbs the air pressure in the middle ear cavity and stimulates the perilymph, which interferes with balance, which is normally maintained by the labyrinthine mechanism [2].
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