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Vestibular evoked myogenic potentials in chronic otitis media before and after surgery.
MedLine Citation:
PMID:  19116794     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Conclusion. The pathology of chronic otitis media (COM) could delay and reduce the energy transfer of sound to the inner ear. The significant improvement of postoperative vestibular evoked myogenic potential (VEMP) response rate and p13 latencies in the group of patients with no or negative postoperative ABG gain provided evidence that the sound energy inducing a VEMP might be different from the energy producing the auditory perception. Objective. To evaluate the VEMP in patients with COM before and after surgery. Subjects and methods. Twenty-four subjects with unilateral COM were enrolled. A pure tone audiogram and VEMP using 500 Hz unilateral short tone-burst stimulations were recorded before and 3 months after surgery. The postoperative VEMP responses were compared with the responses before surgery and the healthy controls. Results. After surgery, the 500 Hz air-bone gap (ABG) decreased significantly and the VEMP response rate increased significantly from 41.7% to 66.7% (p<0.05, bi-test). However, both the preoperative and postoperative p13 latencies were significantly longer than those of the healthy controls (p<0.05, Wilcoxon rank-sum test). In the 18 patients whose 500 Hz ABG did not improve with surgery, the p13 latencies were significantly shorter postoperatively (p<0.05, sign test), and the response rate also improved significantly from 44.4% (8/18) to 77.8% (14/18) (p<0.05, bi-test).
Authors:
Mao-Che Wang; Chia-Yu Liu; Eric Chen-Hua Yu; Huei-Jun Wu; Guo-She Lee
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2008-12-30
Journal Detail:
Title:  Acta oto-laryngologica     Volume:  -     ISSN:  1651-2251     ISO Abbreviation:  Acta Otolaryngol.     Publication Date:  2008 Dec 
Date Detail:
Created Date:  2008-12-31     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370354     Medline TA:  Acta Otolaryngol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  1-6     Citation Subset:  -    
Affiliation:
Department of Otolaryngology, Taipei Veterans General Hospital, and School of Medicine, National Yang-Ming University.
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