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J Korean Bal Soc > Volume 7(1); 2008 > Article
Journal of the Korean Balance Society 2008;7(1): 33-37.
전정신경염 환자에서 온도자극에 의한 안진 변화의 추적 관찰
박문수, 박가현, 정용수, 이여진, 신정은, 박홍주
건국대학교 의과대학 이비인후-두경부외과학교실
Follow-up Changes of Eye Movements by Caloric Stimulation in Patients With Vestibular Neuritis
Mun Su Park, Ga Hyun Park, Yong Soo Jeong, Yeo Jin Lee, Jung Eun Shin, Hong Ju Park
Department of Otorhinolaryngology-Head and Neck Surgery, Konkuk University School of Medicine, Seoul, Korea. hpark@kuh.ac.kr
ABSTRACT
Background and Objectives:   A significant recovery of resting activity in the vestibular nuclei ipsilateral to the unilateral labyrinthectomy has been reported by the time symptoms such as spontaneous nystagmus and roll head tilt have largely disappeared. However, the dynamic vestibular response after unilateral vestibular loss to passively imposed vestibular stimuli does not recover.
Materials and Methods:  
We investigated changes of the caloric responses in 32 patients with vestibular neuritis during in- and out-patient visits separated by 2 months in an attempt to identify changes brought about by peripheral and/or central compensation processes.
Results:  
The slow-phase eye velocities stimulated by warm caloric stimulation at acute and follow-up stage were 6.6±6.6°/s, 9.5±9.9°/s in the lesioned side; 28.4±19.1°/s, 24.5±11.6°/s in the intact side. The slow-phase eye velocities stimulated by cold caloric stimulation at acute and follow-up stage were 5.9±7.7°/s, 10.3±8.2°/s in the lesioned side; 19.8±10.3°/s, 18.8±9.9°/s in the intact side.
Conclusion:  
Our findings show that the recovery of caloric responses comes mostly from the recovery of the eye responses to the caloric stimulation in the lesioned side and the eye responses to the caloric stimulation in the intact side does not change over time after vestibular neuritis.
Keywords: Vestibular neuritis; Vestibulo-ocular reflex; Caloric tests; Neural recovery
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