Abstract
We have recently observed fistula symptoms in patients with chronic otitis media, congenital syphilis and many other cochleovestibular disorders of unknown origin.The fistula symptoms were not only horizontal nystagmus, but also vertical nystagmus, rotatory nystagmus and sometimes simple deviation.Since almost all patients in whom fistula symptoms were noted experienced vertigo when their external auditory canals were compressed or decompressed with their own fingers, it is important to ask them about this experience. The incidence is often higher with the finger than with the Politzer bag. It is considered necessary to investigate possible adhesions of the membranous labyrinth to the footplate, which may well be part of the etiology of fistula symptoms.
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