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Research in Vestibular Science > Volume 15(2); 2016 > Article
Research in Vestibular Science 2016;15(2): 55-59.
전정신경염에서 자발안진의 빈도의 임상적 의미
박상현, 이민영, 정재윤
단국대학교 의과대학 이비인후-두경부외과학교실
Clinical Significance of Spontaneous Nystagmus Frequency in Vestibular Neuronitis
Sang Hyun Park, Min Young Lee, Jae Yun Jung
Department of Otorhinolaryngology-Head and Neck Surgery, Dankook University College of Medicine, Cheonan, Korea
Correspondence  Jae Yun Jung ,Tel: +82-41-550-3973, Fax: +82-41-556-1090, Email: jjkingy2K@gmail.net
Received: May 4, 2016; Revised: May 24, 2016   Accepted: May 24, 2016.  Published online: June 15, 2016.
ABSTRACT
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.
Keywords: Rotating chair; Vestibular neuronitis; Dizziness handicap inventory
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