Prevalence and Characteristics of Preoperative Balance Disorders in Cochlear Implant Candidates

2008 ◽  
Vol 117 (10) ◽  
pp. 764-768 ◽  
Author(s):  
Eike Krause ◽  
Julia P. R. Louza ◽  
John-Martin Hempel ◽  
Juliane Wechtenbruch ◽  
Tobias Rader ◽  
...  
Keyword(s):  
Semicircular Canal ◽  
Vestibular Function ◽  
Horizontal Semicircular Canal ◽  
Group A ◽  
Vestibular Function Testing ◽  
Group B ◽  
Vestibular Function Test ◽  
Postoperative Vertigo ◽  
Patient’S History ◽  
Function Testing

Objectives: The aim of this study was to elucidate the frequency and characteristics of preoperative vertigo symptoms in patients who undergo cochlear implantation (CI), in order to differentiate them from CI-related symptoms. Methods: In a prospective observational study, 47 adult CI candidates were asked about vertigo problems on a questionnaire. A subdivision into 3 groups was done: Group A (probable otogenic vertigo), group B (possible otogenic vertigo), and group C (not otogenic vertigo). Horizontal semicircular canal function was measured. Patients with vertigo complaints were compared to patients without vertigo with regard to the presence of abnormal vestibular function findings. Results: Twenty-five patients (53%) reported preoperative vertigo problems. In 21 (84%), the patient's history suggested a probable (group A) or possible (group B) otogenic origin. Patients with vertigo more often had abnormal findings on vestibular function testing than did patients without vertigo. This difference, however, was not statistically significant. Conclusions: A considerable number of CI candidates have preoperative vertigo symptoms. These cannot be explained by horizontal semicircular canal function alone. In order to understand why CI patients develop postoperative vertigo, analysis of prospective preoperative vestibular function test findings and vertigo symptoms is necessary.

scholarly journals Differences in Symptoms among Adults with Canal versus Otolith Vestibular Dysfunction: A Preliminary Report

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Lisa Farrell ◽  
Rose Marie Rine
Keyword(s):  
Functional Status ◽  
Semicircular Canal ◽  
Preliminary Report ◽  
Vestibular Function ◽  
Vestibular Dysfunction ◽  
Dizziness Handicap Inventory ◽  
Symptom Index ◽  
Qualitative Nature ◽  
Vestibular Function Testing ◽  
Function Testing

Despite the importance of symptomatology in the diagnosis of vestibular dysfunction, the qualitative nature of the symptoms related to semicircular canal (canal) versus otolith dysfunction is not fully understood. The purpose of this study was to compare symptoms, and their severity, in individuals with canal versus otolith peripheral vestibular dysfunction. A subjective tool, the Descriptive Symptom Index (DSI), was developed to enable categorization of symptoms as rotary, linear, imbalance or falls, and nondistinct. Fourteen adults were recruited and grouped based on vestibular function testing: canal only dysfunction, otolith only dysfunction, or canal and otolith dysfunction. Also, the Dizziness Handicap Inventory (DHI) was used to grade the severity of perceived limitations due to symptoms. The DSI was reliable and differentiated those with canal (rotary symptoms) versus otolith (linear symptoms) dysfunction. Most individuals with otolith only dysfunction did not report rotary symptoms. DHI scores were significantly higher in those with otolith dysfunction, regardless of canal functional status. All who experienced falls had otolith dysfunction and none had canal only dysfunction. Results support the importance of using linear and rotary descriptors of perceived disorientation as part of diagnosing vestibular dysfunction.

Vestibular assessment of a patient with myasthenia gravis: case report 

2020 ◽  
Vol 12 (3) ◽  
pp. 65-70
Author(s):  
Kenneth Chua ◽  
Sakumura J
Keyword(s):  
Myasthenia Gravis ◽  
Late Onset ◽  
Vestibular Function ◽  
Symptom Checklist ◽  
Test Results ◽  
Functional Impairments ◽  
Clinical Value ◽  
Vestibular Assessment ◽  
Vestibular Function Testing ◽  
Function Testing

Vestibular Assessment in patients with Myasthenia Gravis (MG) is challenging, as diagnostic evaluation requires good recording of eye movements. Reports on Vestibular Function Testing (VFT) in MG patients have been scant and it is arguable that VFT will have little clinical value in the MG population. A 75-year-old man, with late onset acquired autoimmune MG presented with dizziness for evaluation. He completed VFT with no significant abnormalities in all tests and was elated to have vestibular ruled out as a contributing factor to his dizziness and imbalance. However, his functional impairments were still addressed and managed regardless of the test results. MG is a heterogenous condition that may be well-controlled with treatment. Patients with dizziness can still be diagnostically evaluated to rule in or out a vestibular involvement and should not be precluded from VFT. Patients should also be assessed for their functional impairments and not based on symptom checklist and objective test results alone. Hence, patients with normal VFT results can still benefit from a hybrid of vestibular rehabilitation therapy (VRT) with focus on habituation.

Acute vertigo in the ENT emergency

2021 ◽  
Vol 70 (3) ◽  
pp. 146-155
Author(s):  
Václav Albrecht ◽  
Lukáš Školoudík ◽  
Peter Sila ◽  
Jan Mejzlík ◽  
Michal Janouch ◽  
...  
Keyword(s):  
Emergency Department ◽  
Vestibular Function ◽  
Head Impulse Test ◽  
Video Head Impulse Test ◽  
Head Impulse ◽  
Video Assisted ◽  
Vestibular Testing ◽  
Group A ◽  
The Difference ◽  
Group B

Summary Introduction: Acute vertigo ranks among the common reasons for visiting the emergency department. The aim of this study was to evaluate the rate of peripheral vestibular syndrome (PVS) in patients with acute vertigo examined at the ENT emergency department and to compare the agreement of physical ENT examination with video-assisted vestibular testing. Methods: Patients eamined at the ENT emergency department from January to December 2019 were evaluated retrospectively. The patients who underwent basic ENT examination without video-assisted vestibular testing form group A. The patients who underwent basic ENT examination which was followed by video head impulse test (vHIT) and videonystagmography in the next four days form group B. Results: A total of 117 patients with acute vertigo were included in group A, PVS was found in 31 patients (27%). In total, 50 patients were included in group B; PVS was found in 15 patients (30%), vestibular neuronitis was dia­gnosed most often (10 patients). The difference in the dia­gnosis of PVS by basic ENT examination (27 patients, 54%) and by video-assisted vestibular testing (15 patients, 30%) was statistically significant (P = 0.0030). The gain of the lateral (P = 0.0101) and superior (P = 0.0043) semicircular canal proved to be statistically significant, while vHIT was lower in PVS in comparison to other causes of vertigo. Conclusion: After basic ENT examination, PVS as a cause of acute vertigo was dia­gnosed in 27%. Video-assisted vestibular testing proved a statistically significant lower incidence of PVS in comparison to basic ENT examination. Accessibility of video- -assisted vestibular testing in the emergency department might allow for higher accuracy in the dia­gnosis of acute vertigo. Key words acute vertigo – vestibular function tests – video head impulse test – videonystagmography

Vestibular function testing in the 21st century

2021 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Sally M. Rosengren ◽  
Allison S. Young ◽  
Rachael L. Taylor ◽  
Miriam S. Welgampola
Keyword(s):  
21St Century ◽  
Vestibular Function ◽  
Vestibular Function Testing ◽  
Function Testing

Vestibular function testing

2010 ◽  
Vol 179 (2) ◽  
pp. 173-178 ◽  
Author(s):  
E. E. Lang ◽  
R. McConn Walsh
Keyword(s):  
Vestibular Function ◽  
Vestibular Function Testing ◽  
Function Testing

A new multiaxis rotating chair for oculomotor and vestibular function testing in humans

1996 ◽  
Vol 16 (3) ◽  
pp. 157-162 ◽  
Author(s):  
E. Koenig ◽  
H. Westermann ◽  
K. Jäger ◽  
G. Sell ◽  
K. Bechert ◽  
...  
Keyword(s):  
Vestibular Function ◽  
Vestibular Function Testing ◽  
Function Testing

Video Head Impulse Testing (vHIT) and the Assessment of Horizontal Semicircular Canal Function

2015 ◽  
Vol 26 (05) ◽  
pp. 518-523 ◽  
Author(s):  
Kristal M. Riska ◽  
Owen Murnane ◽  
Faith W. Akin ◽  
Courtney Hall
Keyword(s):  
Semicircular Canal ◽  
Objective Assessment ◽  
Vestibular Function ◽  
Vestibular Evoked Myogenic Potentials ◽  
Head Impulse Test ◽  
Clinical Test ◽  
Horizontal Semicircular Canal ◽  
Head Impulse ◽  
New Instrument ◽  
Qualitative Test

Background: Vestibular function (specifically, horizontal semicircular canal function) can be assessed across a broad frequency range using several different techniques. The head impulse test is a qualitative test of horizontal semicircular canal function that can be completed at bedside. Recently, a new instrument (video head impulse test [vHIT]) has been developed to provide an objective assessment to the clinical test. Questions persist regarding how this test may be used in the overall vestibular test battery. Purpose: The purpose of this case report is to describe vestibular test results (vHIT, rotational testing, vestibular evoked myogenic potentials, and balance and gait performance) in an individual with a 100% unilateral caloric weakness who was asymptomatic for dizziness, vertigo or imbalance. Data Collection and/or Analysis: Comprehensive assessment was completed to evaluate vestibular function. Caloric irrigations, rotary chair testing, vHIT, and vestibular evoked myogenic potentials were completed. Results: A 100% left-sided unilateral caloric weakness was observed in an asymptomatic individual. vHIT produced normal gain with covert saccades. Conclusions: This case demonstrates the clinical usefulness of vHIT as a diagnostic tool and indicator of vestibular compensation and functional status.

Case Study: Depersonalization and Vestibular Impairment

2021 ◽  
Author(s):  
Yini Sun ◽  
Allison Coltisor ◽  
Gary P. Jacobson ◽  
Richard A. Roberts
Keyword(s):  
Vestibular Function ◽  
Retrospective Chart Review ◽  
Vestibular Evoked Myogenic Potentials ◽  
Head Impulse Test ◽  
Vestibular Evoked Myogenic Potential ◽  
Episodic Vertigo ◽  
Data Collection And Analysis ◽  
Vestibular Function Testing ◽  
Function Testing

Abstract Background We describe herein the case of a patient whose primary complaints were episodic vertigo and “depersonalization,” a sensation of detachment from his own body. Purpose This case study aims to further clinical knowledge and insight into the clinical evaluation of vertiginous patients with complaints of depersonalization. Research Design This is a case study. Data Collection and Analysis A retrospective chart review of vestibular function testing done on a vertiginous patient with complaints of depersonalization was performed. Results Vestibular function testing revealed absent cervical and ocular vestibular evoked myogenic potentials on the left side with normal vHIT or video Head Impulse Test, videonystagmography, and rotational chair results, suggesting peripheral vestibular impairment isolated to the left saccule and utricle. Conclusion The otolith end organ impairment explains the patient's postural deviation to the left side during attempts to ambulate. We recommend that clinicians should be attentive to patient complaints of depersonalization and perform vestibular evoked myogenic potential testing to determine whether evidence of at least a unilateral peripheral otolith end organ impairment exists.

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