In Ménière's disease, an ednolymphatic hydrops (EH) in scala media leads to a distention and, eventually, rupture of Reissner's membrane. This results in an influx of K+-rich endolymph into the Na+-rich perilymph of scala vestibuli.
Supposedly, this causes an "injury to the sensory and neural elements of the inner ear, which manifests clinically as sudden hearing loss, tinnitus, and vertigo."
What is the pathophysiological mechanism? Aren't these elements part of the Organ of Corti, not in the perilymphatic space?