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Original Articles
- Clinical Significance of Spontaneous Nystagmus Frequency in Vestibular Neuronitis
- Sang Hyun Park, Min Young Lee, Jae Yun Jung
- Res Vestib Sci. 2016;15(2):55-59. Published online June 15, 2016
- 2,488 View
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Abstract
PDF - OBJECTIVE: Spontaneous nystagmus is typical sign in vestibular neuronitis. However, the clinical significance of spontaneous nystagmus frequency remains unclear. The aim of this study is to analyze the spontaneous nystagmus frequency in patients with vestibular neuronitis.
METHODS
Twenty-five patients with vestibular neuronitis were included. Patients were divided good (≥20%) and poor (<20%) group according to change of spontanous nystagmus frequency. Frequency and velocity of spontaneous nystagmus were analyzed by using video-nystagmography. Caloric test and slow harmonic acceleration test were also performed.
RESULTS
There was a positive linear correlation between frequency and velocity in initial and follow test (R2=0.51, 0.43, p<0.01, p<0.01). Also, there was a strong positive linear correlation betweeng change of frequency and change of velocity (R2=0.64, p<0.01). The phase lead of slow harmonic acceleration test of good group was smaller compared with poor group, and this was statistically significant in 0.04 Hz.
CONCLUSION
We suggested that frequency of spontaneous nystagmus may be a useful clinical factor in vestibular neuronitis.
- Correlation between Rotating Chair Test and Dizziness Handicap Inventory in Patients with Acute Unilateral Vestibular Neuritis
- Hyeong Joo Lee, Jin Yong Kim, Dong Gu Hur, Seong Ki Ahn
- Res Vestib Sci. 2016;15(2):51-54. Published online June 15, 2016
- 2,854 View
- 84 Download
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Abstract
PDF
- OBJECTIVE: Vestibular neuritis (VN) is one of the most common causes of acute spontaneous vertigo. However, such dizziness symptoms in patients with VN vary among patients, and various methods are used to evaluate subjective vestibular symptoms following attack of VN. Studies on correlation between subjective vestibular symptom changes and result of rotation chair test after vestibular rehabilitation therapy (VRT) have not been reported.
Therefore, we compared change of dizziness handicap inventory (DHI) and results of rotation chair test in patients with VN between attack and 3 month later following VRT.
METHODS
Forty-seven patients were included in this study. In patients with VN, DHI and rotation chair test were performed at the time of VN attack and recovery time of 3 months after VN attack.
RESULTS
In general, the DHI score and the percentage of directional preponderance (DP) in a rotation chair test performed on patients with VN have all decreased. However, the changes in these results were not statistically significant. DP% difference and DHI score were compared to each other among patients with VN and showed no relational significance to each other (r=0.326).
CONCLUSION
The degree of improvement in a rotation chair test done on patients with VN did not reflect the severity of improvement for symptom like dizziness.
- Efficacy of Rotating Chair Test And Caloric Test For The Diagnosis of Acute Unilateral Vestibular Neuritis
- Heung Eog Cha, Chae Young Lim, Gyu Cheol Han, Chang Hyun Cho, Byung Ki Yoon, Min Kwan Baek, Ju Hyoung Lee
- J Korean Bal Soc. 2008;7(1):43-47.
- 2,041 View
- 26 Download
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Abstract
PDF
- Background and Objectives: The acute unilateral vestibular neuritis is fairly a common disease and the precise diagnostic tool is needed for the selection of effective treatments. Therefore, we studied the clinical usefulness of the rotatory chair test and caloric test which have been commonly used in patient of acute unilateral vestibular neuritis. Materials and Methods: One hundred and sixty four patients who were diagnosed with acute unilateral vestibular neuritis from August of 2004 to June of 2007 were included. Their medical records of the rotating chair test and caloric test were reviewed retrospectively to study the correlation of the two tests. Results: Of 164 patients, 101 patients (61.6%) and 88 patients (53.7%) showed significant canal paresis (CP) and directional preponderance (DP) on the caloric tests that corresponded with the physical exam. 130 patients (79.3%) and 84 patients (51.2%) showed significant asymmetry and time constant (Tc) on the rotating chair test that corresponded with the predictive direction with spontaneous nystagmus. Conclusions: For acute unilateral vestibular neuritis patients, the asymmetry of the rotatory chair test showed the highest correlation with clinical findings. But physical exam should be preceded because neither rotator chair test nor caloric test yields a specific correlation with the physical exam. Especially, single test only may too many false negative results. For these tests can reduce false positive cases of the physical exam and raise the specificity of the diagnosis, the planning of proper treatments should be followed thereafter.
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