Follow-up Examination of Vibration-Induced Nystagmus in Patients with Unilateral Vestibular Neuritis.
- Author:
Hong Ju PARK
1
;
Jung Eun SHIN
;
Jae Yoon AHN
;
Ga Hyun PARK
;
Yong Soo JUNG
;
Hi Boong KWAK
;
Yeo Jin LEE
;
Jin Seok YOO
Author Information
1. Department of Otorhinolaryngology-Head and Neck Surgery, Konkuk University School of Medicine, Seoul, Korea. hpark@kuh.ac.kr
- Publication Type:Original Article
- Keywords:
Vestibular Neuronitis;
Vertigo;
Vestibular function tests;
Nystagmus;
Vibration
- MeSH:
Caloric Tests;
Eye Movements;
Follow-Up Studies*;
Humans;
Paresis;
Vertigo;
Vestibular Function Tests;
Vestibular Neuronitis*;
Vibration
- From:Journal of the Korean Balance Society
2007;6(2):172-175
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
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.
