International journal of audiology · 2011
The relevance of hypothalamus-pituitary-adrenocortical axis-related hormones to the cochlear symptoms in Ménière's disease.
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Aoki Mitsuhiro, Wakaoka Yoshinori, Hayashi Hisamitsu, Nishihori Takezumi, Kuze Bunya, Mizuta Keisuke, Ito Yatsuji
Аннотация
OBJECTIVE: To investigate the association of the HPA (hypothalamus-pituitary-adrenocortical) axis-related hormones with the progression of cochlear symptoms in patients with Ménière's disease.
DESIGN: Clinical assessments (Tinnitus Handicap Inventory: THI, visual analog scale to rate the degree of the tinnitus: VAS, hearing levels in pure-tone audiometry) were conducted upon entry into the study (baseline) and at 12 weeks follow-up (week 12). Blood sampling to measure HPA axis-related hormones took place between 9:00 and 10:00 a.m. at baseline and at 12 weeks follow-up.
STUDY SAMPLES: This study consisted of 20 unilateral Ménière's disease patients and 21 patients with other diseases with unilateral sensorineural hearing loss and tinnitus.
RESULTS: A significant deterioration of the hearing level at high frequency range, especially at 2 kHz, was found during the 12 weeks follow-up in the Ménière's disease group (p < 0.05). The average hearing levels significantly correlated with the serum cortisol level at baseline and week 12 in the Ménière's disease group, especially regarding the high frequency levels (p < 0.01).
CONCLUSIONS: Our results suggest that the cortisol levels influence the endolymphatic homeostasis resulting in a deterioration of hearing at high frequency with upstaging of Ménière's disease.
DESIGN: Clinical assessments (Tinnitus Handicap Inventory: THI, visual analog scale to rate the degree of the tinnitus: VAS, hearing levels in pure-tone audiometry) were conducted upon entry into the study (baseline) and at 12 weeks follow-up (week 12). Blood sampling to measure HPA axis-related hormones took place between 9:00 and 10:00 a.m. at baseline and at 12 weeks follow-up.
STUDY SAMPLES: This study consisted of 20 unilateral Ménière's disease patients and 21 patients with other diseases with unilateral sensorineural hearing loss and tinnitus.
RESULTS: A significant deterioration of the hearing level at high frequency range, especially at 2 kHz, was found during the 12 weeks follow-up in the Ménière's disease group (p < 0.05). The average hearing levels significantly correlated with the serum cortisol level at baseline and week 12 in the Ménière's disease group, especially regarding the high frequency levels (p < 0.01).
CONCLUSIONS: Our results suggest that the cortisol levels influence the endolymphatic homeostasis resulting in a deterioration of hearing at high frequency with upstaging of Ménière's disease.