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Bilateral versus unilateral sudden sensorineural hearing loss.

Oh, JH; Park, K; Lee, SJ; Shin, YR; Choung, YH
Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery, 136(1):87-91, 2007
Journal Title
Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery
OBJECTIVES: To analyze the clinical characteristics and treatment results between bilateral (bi-) and unilateral (uni-) sudden sensorineural hearing loss (SSNHL).

STUDY DESIGN AND SETTING: A retrospective study.

METHODS: Three hundred twenty-four patients with SSNHL were classified into two groups; simultaneous bi-SSNHL (n = 16) and uni-SSNHL (n = 308). We compared clinical characteristics, medical history, hearing level, and treatment results between the 2 groups.

RESULTS: The incidence of bi-SSNHL was 4.9 percent of overall patients with SSNHL. Bi-SSNHL occurs more commonly in patients of older age, with preexisting diabetes mellitus, and lipid panel abnormalities compared with uni-SSNHL. Ten patients (62.5%) in the bi-SSNHL group showed hearing recovery in 1 or both ears compared with 56.5 percent of patients with uni-SSNHL. Only 12 (37.5%) of all 32 ears recovered in bi-SSNHL, which was significantly lower than in uni-SSNHL.

CONCLUSION: Bi-SSNHL has a very low incidence and lower recovery rate than uni-SSNHL. Recognition of similarities and differences between bilateral and unilateral SSNHL can help in counseling and managing the patients.
MeSH terms
ComorbidityDiabetes Mellitus/epidemiologyFemaleHearingHearing Loss, Sensorineural*/diagnosisHearing Loss, Sensorineural*/drug therapyHearing Loss, Sensorineural*/epidemiologyHearing Loss, Sensorineural*/physiopathologyHumansIncidenceMaleMiddle AgedRecovery of FunctionRetrospective Studies
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Otolaryngology
AJOU Authors
박, 기현정, 연훈
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