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다국어 초록 (Multilingual Abstract)

Objectives: This study was performed to determine characteristics and the prog-nostic values in idiopathic sudden sensorineural hearing loss (SSNHL) with comor-bid ipsilateral canal paresis (CP) and/or benign paroxysmal positional vertigo (BPPV).
Methods: Of the 338 patients with a diagnosis of idiopathic SSNHL, 29 patients (8.6%) with CP and 24 patients (7.1%) with BPPV were recruited and compared to 23 patients with SSNHL and vertigo but without CP or BPPV. The patients were evaluated for their initial hearing threshold, type of canal involved, response to repositioning maneuvers, and hearing outcome for 6 months.
Results: Patients with CP (+) BPPV (‒) showed lower pure-tone averages than those with CP (‒) BPPV (+) on initial and follow-up audiograms. The improve-ment in pure-tone averages was less in the CP (+) BPPV (‒) group than in the CP (‒) BPPV (+) group. The improvement in speech discrimination scores was less in the CP (+) BPPV (‒) group than in the CP (‒) BPPV (‒) group. BPPV most commonly involved the posterior canal (15 of 24, 62.5%), followed by the horizontal canal (13 of 24, 54.2%). Three of 24 patients (12.5%) had recurrences of BPPV.
Conclusions: CP is a more serious sign for hearing recovery than BPPV, although both CP and BPPV are negative prognostic indicators of auditory function in SSNHL. Concurrent CP and/or BPPV in SSNHL suggest combined damage to the vestibule and may indicate severe and widespread labyrinthine damage, leading to a poor prognosis.

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