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Effects of unilateral dysfunction of the inferior vestibular nerve system on postural stability.
Clin Neurophysiol. 2010 Aug; 121(8):1279-84.CN

Abstract

OBJECTIVE

To investigate whether disorders of the inferior vestibular nerve (IVN) system affect postural stability.

METHOD

Two-legged stance tasks were performed by patients with unilateral peripheral vestibulopathy (n=108) in four conditions: eyes open or eyes closed, with or without foam rubber. We examined six parameters: the velocity of movement of the center of pressure and the envelopment area determined by tracing the movement in the eyes closed/foam rubber condition, Romberg's ratio of velocity and area with foam rubber, and the foam ratios (ratios of a measured parameter with to without the foam rubber) of velocity and area with eyes closed.

RESULTS

The values of all six parameters were significantly higher in patients with unilateral vestibulopathy whose cervical vestibular evoked myogenic potentials (cVEMPs) were abnormal compared with healthy controls (p<0.01). Four of the six parameters showed significantly higher values (p<0.05) in patients with unilateral abnormal cVEMPs in the presence of normal caloric responses compared with the controls.

CONCLUSIONS

Foam posturography is useful for making a preliminary assessment of unilateral vestibulopathy with abnormal cVEMPs. Selective damage of the unilateral IVN system could affect postural stability.

SIGNIFICANCE

We proved the influence of the disorder of the IVN system on postural stability.

Authors+Show Affiliations

Department of Otolaryngology, Faculty of Medicine, The University of Tokyo, Japan. cfujimoto-tky@umin.ac.jpNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

20227910

Citation

Fujimoto, Chisato, et al. "Effects of Unilateral Dysfunction of the Inferior Vestibular Nerve System On Postural Stability." Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology, vol. 121, no. 8, 2010, pp. 1279-84.
Fujimoto C, Murofushi T, Chihara Y, et al. Effects of unilateral dysfunction of the inferior vestibular nerve system on postural stability. Clin Neurophysiol. 2010;121(8):1279-84.
Fujimoto, C., Murofushi, T., Chihara, Y., Ushio, M., Yamaguchi, T., Yamasoba, T., & Iwasaki, S. (2010). Effects of unilateral dysfunction of the inferior vestibular nerve system on postural stability. Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology, 121(8), 1279-84. https://doi.org/10.1016/j.clinph.2010.02.149
Fujimoto C, et al. Effects of Unilateral Dysfunction of the Inferior Vestibular Nerve System On Postural Stability. Clin Neurophysiol. 2010;121(8):1279-84. PubMed PMID: 20227910.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of unilateral dysfunction of the inferior vestibular nerve system on postural stability. AU - Fujimoto,Chisato, AU - Murofushi,Toshihisa, AU - Chihara,Yasuhiro, AU - Ushio,Munetaka, AU - Yamaguchi,Takuhiro, AU - Yamasoba,Tatsuya, AU - Iwasaki,Shinichi, Y1 - 2010/03/15/ PY - 2009/12/24/received PY - 2010/02/15/revised PY - 2010/02/16/accepted PY - 2010/3/16/entrez PY - 2010/3/17/pubmed PY - 2010/7/31/medline SP - 1279 EP - 84 JF - Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology JO - Clin Neurophysiol VL - 121 IS - 8 N2 - OBJECTIVE: To investigate whether disorders of the inferior vestibular nerve (IVN) system affect postural stability. METHOD: Two-legged stance tasks were performed by patients with unilateral peripheral vestibulopathy (n=108) in four conditions: eyes open or eyes closed, with or without foam rubber. We examined six parameters: the velocity of movement of the center of pressure and the envelopment area determined by tracing the movement in the eyes closed/foam rubber condition, Romberg's ratio of velocity and area with foam rubber, and the foam ratios (ratios of a measured parameter with to without the foam rubber) of velocity and area with eyes closed. RESULTS: The values of all six parameters were significantly higher in patients with unilateral vestibulopathy whose cervical vestibular evoked myogenic potentials (cVEMPs) were abnormal compared with healthy controls (p<0.01). Four of the six parameters showed significantly higher values (p<0.05) in patients with unilateral abnormal cVEMPs in the presence of normal caloric responses compared with the controls. CONCLUSIONS: Foam posturography is useful for making a preliminary assessment of unilateral vestibulopathy with abnormal cVEMPs. Selective damage of the unilateral IVN system could affect postural stability. SIGNIFICANCE: We proved the influence of the disorder of the IVN system on postural stability. SN - 1872-8952 UR - https://www.unboundmedicine.com/medline/citation/20227910/Effects_of_unilateral_dysfunction_of_the_inferior_vestibular_nerve_system_on_postural_stability_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1388-2457(10)00252-X DB - PRIME DP - Unbound Medicine ER -