[Analysis of sensorineural hearing loss in chronic suppurative otitis media].
OBJECTIVE
To explore the association between chronic suppurative otitis media and sensorineural hearing loss.


METHODS
The files of 147 patients with unilateral chronic suppurative media were reviewed in a retrospective study. Differences between diseased and control ear bone conduction thresholds were analysed by the paired student's t-test over the four frequencies (0.5 kHz, 1.0 kHz, 2.0 kHz, 4.0 kHz). The effect of the presence of cholesteatoma and ossicular erosion on sensorineural hearing loss over the speech frequencies (0.5 kHz, 1.0 kHz, 2.0 kHz) and 4.0 kHz were analysed by one-way ANOVA. Linear regression models were used to clarify the relationships between sensorineural hearing loss and chronic suppurative otitis media.


RESULTS
The differences in bone conduction threshold between diseased and control ear were statistically significant. Bone conduction threshold shift at speech frequency was associated with the ages. The presence of cholesteatoma and ossicular erosion was not associated with a significantly increased risk of sensorineural hearing loss.


CONCLUSIONS
Chronic suppurative otitis media can result in sensorineural hearing loss. The higher frequencies are easier affected than the lower frequencies.
Feng
Hongyun
H
Department of Otorhinolaryngology, Qilu Hospital of Shandong University, Jinan, 250012, China.
Chen
Ying
Y
D000293:Adolescent; D000328:Adult; D000368:Aged; D001309:Auditory Threshold; D001844:Bone Conduction; D002648:Child; D002908:Chronic Disease; D005260:Female; D006319:Hearing Loss, Sensorineural / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010035:Otitis Media, Suppurative / Q000150:complications*; D012189:Retrospective Studies