|
著者: Toshihisa Murofushi, Haruka Nakahara, Eriko Yoshimura
雑誌名: Neurosci Lett. 2012 May 2;515(2):103-6. doi: 10.1016/j.neulet.2012.02.084. Epub 2012 Mar 23.
Abstract/Text
The otolith-ocular reflex in patients with episodic lateral tilt sensation without any other vestibular symptoms was assessed using ocular vestibular evoked myogenic potentials (oVEMP). Ten patients (6 men and 4 women, mean age=53.5) were enrolled. All patients had episodic lateral tilt sensation. Patients with a medical history of rotatory vertigo, loss of consciousness, head trauma, or symptoms or signs of central nervous dysfunction or proprioceptive dysfunction and those who had been definitely diagnosed with a disease that causes disequilibrium were excluded. All of the 10 patients had oVEMP tests and cervical VEMP (cVEMP) tests and underwent caloric tests. Eight of the 10 patients showed unilateral absence of oVEMP, one displayed a bilateral absence, and one displayed normal oVEMP. Concerning cVEMP, 4 patients showed a unilateral absence of cVEMP, one displayed unilaterally decreased responses and 5 displayed normal cVEMP. All patients showed normal bilateral caloric responses. The present study showed that patients with episodic lateral tilt sensation displayed abnormal otolith-ocular reflexes, as shown by their oVEMP, suggesting that these patients were suffering from utricular dysfunction.
Copyright © 2012 Elsevier Ireland Ltd. All rights reserved.
PMID 22465248 Neurosci Lett. 2012 May 2;515(2):103-6. doi: 10.1016/j.neulet.2012.02.084. Epub 2012 Mar 23.
|