抄録
Of 12 patients with perilymph fistula, 10 (83%) had cochlear symptoms, 6 (50%) had vestibular symptoms, and 4 (33%) had both. Vestibular function tests revealed direction-fixed positional nystagmus in 9 patients (75%), canal paresis (CP) in 6 (50%) and Hennebert's sign in one (8%). There was a wide variety of type and severity of hearing loss.
The outcome of the vestibular symptoms was quite good. Eleven patients (91%) were cured, but positional nystagmus and a positive Mann's test tended to persist for a long time, and CP did not improve. The stepping test was apt to become negative. Improvement of hearing was recorded in only 50%. Five patients underwent surgery, but there was no relationship between the improvement of hearing and operation.
