Acute Low Tone Sensorineural Hearing Loss at Jichi Medical School
1994 Volume 37 Issue 2 Pages 116-120
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1994 Volume 37 Issue 2 Pages 116-120
We studied the clinical characteristics of patients with acute low tone sensorineural hearing loss at Jichi Medical School between the years 1987 and 1993. In 36 subjects whose sum of the hearing level of the three high frequencies was below 60dB, the average age was 38 years old and 20 subjects werefemale. Thirty subjects demonstrated no recurrence with good recovery of the hearing level. The other 6 subjects suffered from the second episode of acute low tone hearing loss when their hearing loss was worse than that of the first episode and their hearing level did not reach to the recovered level of the first episode.
In 16 subjects whose sum of the hearing level of the three high frequencies was over 61dB, the average age was 52 years old and 9 subjects were male. Five subjects demonstrated second episode of acute low tone sensorineural hearing loss. Thus, the present study suggests a different clinical characteristics between the subjects with below 60dB and 61dB of sum of the three high frequencies.
