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Effect of severity of vestibular dysfunction on postural instability in idiopathic bilateral vestibulopathy.
Acta Otolaryngol. 2013 May; 133(5):454-61.AO

Abstract

CONCLUSIONS

Foam posturography reveals that idiopathic bilateral vestibulopathy (IBV) significantly affects postural stability. Instability was more severe in patients with damage to both of the vestibular nerve systems. Residual function in the spared vestibular nerve system might contribute to postural stability in IBV.

OBJECTIVE

Postural stability was assessed using foam posturography in patients with IBV according to whether the inferior, superior or both of the vestibular nerve systems were affected.

METHODS

Two-legged stance tasks were performed by patients with IBV (n = 29) in four conditions: eyes open with and without foam rubber, and eyes closed with and without foam rubber. We examined six variables: the velocity of movement of the center of pressure (COP), the envelopment area traced by the movement of the COP, Romberg's ratio of velocity and area, and the foam ratios of velocity and area.

RESULTS

The presence of IBV was significantly positively related to all the variables in adjusting for the subjects' gender and age (p < 0.001). Five of the 29 patients (17%) with IBV required assistance to prevent falling with eyes closed/foam rubber. Four of these five patients showed bilateral canal paresis in caloric testing and bilaterally no responses in cervical vestibular evoked myogenic potential testing.

Authors+Show Affiliations

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

23350592

Citation

Fujimoto, Chisato, et al. "Effect of Severity of Vestibular Dysfunction On Postural Instability in Idiopathic Bilateral Vestibulopathy." Acta Oto-laryngologica, vol. 133, no. 5, 2013, pp. 454-61.
Fujimoto C, Murofushi T, Chihara Y, et al. Effect of severity of vestibular dysfunction on postural instability in idiopathic bilateral vestibulopathy. Acta Otolaryngol. 2013;133(5):454-61.
Fujimoto, C., Murofushi, T., Chihara, Y., Ushio, M., Suzuki, M., Yamaguchi, T., Yamasoba, T., & Iwasaki, S. (2013). Effect of severity of vestibular dysfunction on postural instability in idiopathic bilateral vestibulopathy. Acta Oto-laryngologica, 133(5), 454-61. https://doi.org/10.3109/00016489.2012.742565
Fujimoto C, et al. Effect of Severity of Vestibular Dysfunction On Postural Instability in Idiopathic Bilateral Vestibulopathy. Acta Otolaryngol. 2013;133(5):454-61. PubMed PMID: 23350592.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effect of severity of vestibular dysfunction on postural instability in idiopathic bilateral vestibulopathy. AU - Fujimoto,Chisato, AU - Murofushi,Toshihisa, AU - Chihara,Yasuhiro, AU - Ushio,Munetaka, AU - Suzuki,Mitsuya, AU - Yamaguchi,Takuhiro, AU - Yamasoba,Tatsuya, AU - Iwasaki,Shinichi, Y1 - 2013/01/28/ PY - 2013/1/29/entrez PY - 2013/1/29/pubmed PY - 2013/12/16/medline SP - 454 EP - 61 JF - Acta oto-laryngologica JO - Acta Otolaryngol. VL - 133 IS - 5 N2 - CONCLUSIONS: Foam posturography reveals that idiopathic bilateral vestibulopathy (IBV) significantly affects postural stability. Instability was more severe in patients with damage to both of the vestibular nerve systems. Residual function in the spared vestibular nerve system might contribute to postural stability in IBV. OBJECTIVE: Postural stability was assessed using foam posturography in patients with IBV according to whether the inferior, superior or both of the vestibular nerve systems were affected. METHODS: Two-legged stance tasks were performed by patients with IBV (n = 29) in four conditions: eyes open with and without foam rubber, and eyes closed with and without foam rubber. We examined six variables: the velocity of movement of the center of pressure (COP), the envelopment area traced by the movement of the COP, Romberg's ratio of velocity and area, and the foam ratios of velocity and area. RESULTS: The presence of IBV was significantly positively related to all the variables in adjusting for the subjects' gender and age (p < 0.001). Five of the 29 patients (17%) with IBV required assistance to prevent falling with eyes closed/foam rubber. Four of these five patients showed bilateral canal paresis in caloric testing and bilaterally no responses in cervical vestibular evoked myogenic potential testing. SN - 1651-2251 UR - https://wwww.unboundmedicine.com/medline/citation/23350592/Effect_of_severity_of_vestibular_dysfunction_on_postural_instability_in_idiopathic_bilateral_vestibulopathy_ L2 - http://www.tandfonline.com/doi/full/10.3109/00016489.2012.742565 DB - PRIME DP - Unbound Medicine ER -