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HOME > J Korean Bal Soc > Volume 6(2); 2007 > Article
Original Article Follow-up Examination of Vibration-Induced Nystagmus in Patients with Unilateral Vestibular Neuritis
Hong Ju Park, Jung Eun Shin, Jae Yoon Ahn, Ga Hyun Park, Yong Soo Jung, Hi Boong Kwak, Yeo Jin Lee, Jin Seok Yoo

DOI: https://doi.org/
Department of Otorhinolaryngology-Head and Neck Surgery, Konkuk University School of Medicine, Seoul, Korea. hpark@kuh.ac.kr
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Background and Objectives: The aim of this study was to verify if vibration-induced nystagmus in patients with vestibular neuritis changed over time and to compare the results of vibration-induced nystagmus (VIN) test to those of caloric test. Materials and Method: We compared VIN results with those of caloric testing in 23 patients (M:F = 11:12, 15~67 years old) with unilateral vestibular neuritis seen at onset and in follow-up for around 2 months. The eye movement recordings were made and the maximum slow-phase eye velocities (SPV) were calculated during vibration. If spontaneous nystagmus was present, it was subtracted from the slow-phase eye velocities of VIN. Results: In acute stage, VIN of which SPV was directed towards the lesioned side was observed in 21 (91%). In follow-up, VIN of which SPV was directed towards the lesioned side was observed in 19 (83%). There was a significant decrease of the SPV of VIN over time. Significant correlations were observed in between canal paresis & SPV of VIN in both acute and follow-up stages. Conclusion: Our findings show that VIN test can predict the severity of vestibular asymmetry not only in acute stage but also in follow-up stage. Our results suggest that vibration-induced nystagmus might represent the peripheral vestibular asymmetry in patients with vestibular neuritis.


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