Document Detail

Vestibular evoked myogenic potential induced by bone-conducted stimuli in patients with conductive hearing loss.
MedLine Citation:
PMID:  18568497     Owner:  NLM     Status:  MEDLINE    
CONCLUSIONS: Bone-conducted vestibular evoked myogenic potentials (B-VEMPs) showed high specificity for the presence of vertigo in patients with unilateral chronic otitis media (COM). These results suggest that vestibular function can be evaluated with B-VEMPs, even in patients with conductive hearing loss. OBJECTIVE: The purpose of this study was to investigate the VEMPs induced by bone-conducted stimuli (B-VEMPs) in patients with conductive hearing loss due to perforated COM. SUBJECTS AND METHODS: The subjects were 48 patients with unilateral perforated COM and conductive hearing loss. The disequilibrium group consisted of 25 patients, and the non-disequilibrium group consisted of 23 patients. The control group comprised 35 healthy volunteers. B-VEMPs were stimulated with tone burst sound of 60 dB nHL and 250 Hz delivered from a bone vibrator and were recorded for each subject. The results of B-VEMP were compared between disequilibrium and non-disequilibrium groups. RESULTS: The mean interaural ratio was 16.5+/-12.1% in the control group, thus the normal range was <40.7%. Abnormal results were not found in any subject in the non-disequilibrium group but were found in 13 patients (54.0%) in the disequilibrium group (p<0.001). The ear with COM showed lower responses than the intact ear in all subjects with abnormal results.
Toru Seo; Atsushi Miyamoto; Naoki Saka; Koichi Shimano; Takaya Nishida; Misako Hashimoto; Masafumi Sakagami
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Acta oto-laryngologica     Volume:  128     ISSN:  0001-6489     ISO Abbreviation:  Acta Otolaryngol.     Publication Date:  2008 Jun 
Date Detail:
Created Date:  2008-06-23     Completed Date:  2008-10-22     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0370354     Medline TA:  Acta Otolaryngol     Country:  Norway    
Other Details:
Languages:  eng     Pagination:  639-43     Citation Subset:  IM    
Department of Otolaryngology, Hyogo College of Medicine, Nishinomiya.
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MeSH Terms
Bone Conduction*
Chronic Disease
Evoked Potentials, Auditory*
Hearing Loss, Conductive / complications,  physiopathology*
Middle Aged
Neck Muscles / physiopathology*
Otitis Media / complications
Postural Balance
Sensation Disorders / complications
Vestibule, Labyrinth / physiopathology*

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