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:: Volume 23, Issue 2 (6-2014) ::
aud 2014, 23(2): 31-41 Back to browse issues page
Ocular vestibular evoked myogenic potential in patients with benign paroxysmal positional vertigo
Mozhgan Masoom1, Mansoureh Adel Ghahraman 1, Abdolreza Sheybaniezadeh2, Kamran Barin3, Shohreh Jalaie4
1- Department of Audiology, School of Rehabilitation, Tehran University of Medical Science, Iran
2- Department of Audiology, Faculty of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran
3- Departments of Otolaryngology and Physical Therapy, Columbos Children's Hospital and the Ohio State University, Columbus, Ohio, USA
4- Department of Physiotherapy, School of Rehabilitation, Tehran University of Medical Science, Iran
Abstract:   (6261 Views)

Background and Aim: Since utricle is the main damaged organ in benign paroxysmal positional vertigo (BPPV), ocular vestibular evoked myogenic potential (oVEMP) may be an appropriate method to evaluate the utricule dysfunction and the effect of disease recurrence rate on it. This study aimed to record myogenic potential in patients with benign paroxysmal positional vertigo.

Methods: In a cross-sectional study, ocular myogenic potential was recorded in 25 healthy subjects and 20 patients with benign paroxysmal positional vertigo using 500 Hz-tone bursts (95 dB nHL).

Results: In the affected ear, mean amplitude was lower and mean threshold was higher than those in the unaffected ear and in the normal group (p<0.05). Mean amplitude asymmetry ratio of patients was more than the healthy subjects (p<0.001). There was no statistical difference between the two groups regarding mean latencies of n10 and p15 (p>0.05). Frequencies of abnormal responses in the affected ears were higher than in unaffected ears and in the normal group (p<0.05). Furthermore, the patients with recurrent vertigo showed more abnormalities than the patients with non-recurrent (p=0.030).

Conclusion: In the recurrent benign paroxysmal positional vertigo, ocular vestibular evoked myogenic potential showed more damage in the utricle, suggesting this response could be used to evaluate the patients with benign paroxysmal positional vertigo.

Keywords: Ocular vestibular evoked myogenic potential, utricule, otolith, benign paroxysmal positional vertigo
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Type of Study: Research |
Received: 2013/03/5 | Accepted: 2013/05/13 | Published: 2014/02/1
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Volume 23, Issue 2 (6-2014) Back to browse issues page
شنوایی شناسی - دانشگاه علوم پزشکی تهران Bimonthly Audiology - Tehran University of Medical Sciences
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