The clinical features and prognosis of sudden deafness in the elderly

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1 () () : CT.% (.%) (%) ; ; ; ; R. A -()-- The clinical features and prognosis of sudden deafness in the elderly HOU Zhi-qiang LAN Lan WANG Da-yong LI Qian ZHAO Yang WU Zi-ming WANG Qiu-ju Department of Otorhinolaryngology-Head and Neck Surgery Chinese PLA General Hospital Beijing China Medical College of Nankai Univesity Tianjin China Abstract Objective To investigate the clinical features of sudden deafness in the elderly and detect the prognosis. And the value of the auditory and imaging examinations will be identified. The research will make the diagnosis and treatment easier than before. Methods This is a retrospective research including sudden deafness patients in the elderly and sudden deafness patients who aren t old people. The degrees of hearing loss and types of hearing curves were divided into several grades and the distribution of them was observed. The efficacy was classified into groups: ineffectiveness; effectiveness; marked effectiveness; full recovery. The active treatments Pure tone test Distortion product otoacoustic emisstons Auditory brainstem response Carotid artery ultrasound CT MRI were undertaked on the patients. Results The proportion of sudden deafness in the elderly in all the sudden deafness patients approximately was.%. The percentage of profound hearing loss in the patients with system diseases was bigger than others. The degrees of hearing loss could be reflected by DPOAE and ABR. The efficacy of patients was.%.the patients with normal unaffected ear recovered better than the patients with abnormal unaffected ear the pathogenesis isn t the indication of old people. The differencies of Speech recognition scorces of the elderly between before and after therapies were significant in the patients with effective treatments but not in the patients with ineffective treatments. Conclusion There were particular features and prognoses in the sudden deafness in the elderly. The degree of hearing loss and the efficacy could be detected by special examinations and clinical features. key words Sudden deafness; Efficacy Treatment; Speech discrimination test; Hearing loss; Old age : () ( & ) () (BAIB & BAIB) : : houzhiqiang@gmail.com : wqcr@.net

2 Chinese Journal of Otology Vol. No. WHO (). khz db : ( ): db HL ; [] ( ): ~ db HL; ( ): ~ db HL; ( ): ~ db HL; ( ): [] ~ /. [] ( ): : Hz db ; : Hz db ; : Hz db; : [] Hz db [-]. - [ -] : ( ) ( ) % mg mg. [] : : ; :.. : (Pure tone test); (Distortion product otoacoustic emissions DPOAE); (Audiotory brainstem : () response ABR); ; CT; ; () db HL db HL; () ; () % ~ % CT. db HL db ; : ~ db; : db. SPSS.

3 a b c d a. ; b. ; c. ; d. χ Fisher t. - DPOAE ABR.% ( ) (.%) (.%) (.%) DPOAE (.%) : () (< ( ) ) () () (P =. - (.%) (.%) ABR (.% ) (.%) (P =. <.) (.% ) (.%) P ( ). (P =. <.) ( ); () ( ); () <.) ABR

4 Chinese Journal of Otology Vol. No. (%) P ( )... (%) +. (.%). (.%). (.%). ( ) (.%) (.%) (.%) (.%) (.%) (.%) (.%) (.%) (.%) (.%) (.%) (.%) (.%) - - (.%) (.%) (.%) (.%) (.%) (.%) (.%) (.%) (.%) (.%) (.%) (.%) (.%) (.%) (.%) (.%) (.%) (.%) (.%) (.%) (.%) (.%) (.%) <.). ( ) (P =. <.) ABR DPOAE ( ) (P =. <.) ABR (P <.) DPOAE (P =. <.) (.%) (.%) (P =. <.). (P >.) DPOAE (P =. <.) (P =. <.) ABR (P =. >.) (P =. (.%) (%) (%) ABR DPOAE.....

5 (%) ABR DPOAE >.... (%) (%) (%) -.% ~ [ ].%.% [] ( ).%.% (P =. <.) (P =. <.).%

6 Chinese Journal of Otology Vol. No..%.% % ABR DPOAE [] DPOAE ABR Enache [] DPOAE ABR Ceylan [] DPOAE % [] ABR % [-] ABR [] V DPOAE ( ) DPOAE.% DPOAE [ ] ( ).%.%.%( ).%( ).%.%.% % ~ % ( [] Tiong [] ) ~ Pajor [] : () :.%; () ~ :.%; () ~ :.%; () ~ : [] [].%; () > :.%.% []

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