Res Vestib Sci.  2017 Dec;16(4):108-112. 10.21790/rvs.2017.16.4.108.

Significance of 125 Hz Pure-Tone Thresholds for Dizzy Patients with Low Frequency Sensorineural Hearing Loss

  • 1Department of Otorhinolaryngology-Head and Neck Surgery, Eulji Medical Center, Eulji University School of Medicine, Seoul, Korea.


To measure 125 Hz pure-tone thresholds in patients with low frequency sensorineural hearing loss (LFHL) and vertigo and to evaluate the necessity of 125 Hz thresholds for assessment of LFHL with vertigo.
Pure tone audiometry including 125 Hz was performed in 25 dizzy patients with LFHL ≤500 Hz and 25 age-matched subjects with normal hearing. Patients with sudden sensorineural hearing loss and vertigo were excluded. Comparison of 125 Hz between LFHL and control groups, and comparison of 125 Hz and other frequencies in LFHL group was made.
Mean pure-tone thresholds at 125 Hz in LFHL group (41.7±7.5 dB) was higher than that in normal controls (12.8±6.4 dB). Three (12%) patients had normal thresholds at 125 Hz in LFHL group, whereas all subjects showed normal at 125 Hz in control group. None with average hearing thresholds at 250 and 500 Hz ≥35 dB had normal threshold at 125 Hz. There was a significant correlation between 125 Hz and other low frequencies in LFHL group (250 Hz; r=0.79, 500 Hz; r=0.66).
Not every patient of LFHL with vertigo has abnormal hearing threshold at 125 Hz, although all subjects with normal hearing is within normal limits at 125 Hz. Measurement of 125 Hz pure-tone threshold is highly recommended when a mild LFHL exists.


Sensorineural hearing loss; Pure-tone audiometry; Auditory threshold
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