IDIOPATHIC PERILYMPHATIC FISTULA

概要

論文の詳細を見る
Fourty cases with surgically confirmed idiopathic perilymphatic fistula (IPF) were investigated on predisposing factors, sings and symptoms.<BR>The most common predisposing factors in the occurrence of IPF was significant exertion causing pressure change in tympanic cavity and cerebrospinal fluid. Ninety-two percents of the patients with IPF had auditory symptoms. Seventy percent of the patients had vestibular symptoms. Auditory and vestibular symptoms, if present, occured in a variety of forms and combination. A streaming water-like sound and a ear popping sound were noticed in 20% of the patients. Hearing loss, when presents, included varying kinds of hearing loss from sudden-profound to normal. However, four cases revealed low tone sensorineural hearing loss at onset of IPF. Vestibular sings included prolonged positional nystagmus (55%) and positive Hennenert's sing (0.5%). More than one half of the IPF had normal caloric response.<BR>Thirty six cases with IPF occured at the round window, and four cases at the oval window. In case of the oval window, IPF was commonly located anteriorly.
社団法人日本耳鼻咽喉科学会の論文