Document Detail


Sensitivity and specificity of mastoid vibration test in detection of effects of vestibular neuritis.
MedLine Citation:
PMID:  16602325     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Aim of this study was to determine sensitivity and specificity of the mastoid vibration test in patients who had suffered an attack of vestibular neuritis. Results were compared with the caloric test and two bedside tests of vestibular function (head shaking test and head thrust test). Results are reported in 28 patients who had a residual vestibular deficit 6 months after acute neuritis and in 25 healthy subjects. Mastoid vibration nystagmus was evoked in 21 patients but not in controls. In these patients, mastoid vibration test had a sensitivity of 75% and specificity of 100%. Since one patient had inverted mastoid vibration nystagmus, specificity of identification on the pathological side was 95%. Sensitivity of the test increased with increasing severity of the vestibular lesion. Indeed, mastoid vibration nystagmus was induced in 93% of patients with caloric paralysis and in 58% of those with caloric paresis. Nystagmus could usually be modulated or elicited by stimulation of either mastoid. In the few patients in whom mastoid vibration nystagmus was elicited only from one side, or when there was a clear difference in intensity of the nystagmus induced on the two sides, the stimulated side was more often the affected side. Four patients still showed spontaneous nystagmus. The caloric test was abnormal in 26/28 patients (93%) with paralysis in 16 and paresis in 12; 71% of patients had a head shaking induced nystagmus: 64% had an asymmetrical response in head thrust test. In conclusion, mastoid vibration test was overall more sensitive than head thrust test. Mastoid vibration test was slightly less sensitive than head shaking test in patients with severe residual deficit and more sensitive in patients with partial deficit. Mastoid vibration test, a valid, low cost clinical screening test for rapid detection of asymmetrical vestibular function, does not cause patient discomfort. It is suggested that this test be included in the diagnostic workup of all patients with suspected vestibular dysfunction.
Authors:
D Nuti; M Mandalà
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Publication Detail:
Type:  Comparative Study; Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Acta otorhinolaryngologica Italica : organo ufficiale della Società italiana di otorinolaringologia e chirurgia cervico-facciale     Volume:  25     ISSN:  0392-100X     ISO Abbreviation:  Acta Otorhinolaryngol Ital     Publication Date:  2005 Oct 
Date Detail:
Created Date:  2006-04-10     Completed Date:  2006-05-05     Revised Date:  2013-03-26    
Medline Journal Info:
Nlm Unique ID:  8213019     Medline TA:  Acta Otorhinolaryngol Ital     Country:  Italy    
Other Details:
Languages:  eng     Pagination:  271-6     Citation Subset:  IM    
Affiliation:
ENT Department, University of Siena Medical School, Italy. nutid@unisi.it
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MeSH Terms
Descriptor/Qualifier:
Acute Disease
Caloric Tests
Cohort Studies
Female
Follow-Up Studies
Humans
Male
Mastoid*
Middle Aged
Nystagmus, Pathologic / diagnosis
Sensitivity and Specificity
Time Factors
Vestibular Function Tests / instrumentation,  methods*
Vestibular Neuronitis / diagnosis*
Vibration*
Comments/Corrections

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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