Multivariate analysis of hearing outcomes in patients with idiopathic sudden sensorineural hearing loss.
CONCLUSIONS
Contralateral hearing loss is significantly correlated with poor hearing outcomes in patients with idiopathic sudden sensorineural hearing loss (ISSNHL).


BACKGROUND
The hearing outcome in patients with ISSNHL was analyzed using multiple variables.


METHODS
A retrospective chart review was conducted using 89 patients with ISSNHL. Patients within 40 dB HL of average hearing levels and/or patients whose hearing loss was restricted to low frequencies were excluded. The influence of pre-existing conditions on hearing outcome was analyzed using a polytomous universal model. Pre-existing conditions analyzed included hyperglycemia, hypercholesterolemia, hypertension, and contralateral hearing loss. In addition, the severity of hearing loss, age group, and the existence of vertigo were analyzed concomitantly.


RESULTS
Hearing recovery was significantly reduced in patients with a past history of contralateral hearing loss.
Hiraumi
Harukazu
H
Department of Otolaryngology, Head and Neck Surgery, Kyoto University, Kyoto, Japan. hhiraumi@ent.kuhp.kyoto-u.ac.jp
Yamamoto
Norio
N
Sakamoto
Tatsunori
T
Ito
Juichi
J
D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D015331:Cohort Studies; D006319:Hearing Loss, Sensorineural / Q000209:etiology* / Q000473:pathology / Q000628:therapy*; D003639:Hearing Loss, Sudden / Q000209:etiology* / Q000473:pathology / Q000628:therapy*; D006801:Humans; D008875:Middle Aged; D015999:Multivariate Analysis; D020127:Recovery of Function; D012189:Retrospective Studies; D012307:Risk Factors; D016896:Treatment Outcome; D055815:Young Adult