PREVIOUS AUTHORS are in disagreement whether or not an increased pressure of the cerebrospinal fluid affects hearing ability. The present study is based on a correlation between hearing for pure tones and intracranial pressure. Pressure is evaluated by direct measurements of the intraventricular pressure as well as an estimation of papilledema in the eyeground.
There are several probable ways by which increased cerebrospinal fluid (CSF) pressure may affect the hearing. It could be a direct effect of pressure on the cerebral hearing pathways and centers; also, the effect could occur by way of an increase of the intralabyrinthine pressure via the canaliculus cochleae, either by affecting the organ of Corti or by an alteration of impedance around the stapes footplate. The last mentioned possibility can be excluded, since von Békésy1 and Andersen et al,2 experimenting on freshly extracted temporal bones from human beings, found no alterations
Hansen CC. Perceptive Hearing Loss and Increased Intracranial Pressure. Arch Otolaryngol. 1968;87(1):45–47. doi:10.1001/archotol.1968.00760060047009
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