Govender et al.(5)
|
Sidney |
Case control |
Case group: 12 patients with unilateral vestibular dysfunction; Control group: 11 individuals without auditory or vestibular complaints |
Comparison of the responses of the oVEMP utilizing side electrodes (stimulation lateral transmastoid) with the responses of the oVEMP utilizing inferior electrodes (inferior oblique muscles) in patients with vestibular Schwannoma. Utilization of the oVEMP with auditory stimulation by air pathway, tone burst, in the frequency of 500 Hz. |
The oVEMP was altered only on the affected side, when inferior electrodes were used. However, by using side electrodes the oVEMP was abnormal both in the affected side, as well as in the asymptomatic side. In the control group, there were no observed alterations in the oVEMP. |
Chiarovano et al.(14)
|
Paris |
Case control |
Case group: 74 patients with vestibular disorders (12 with vestibular Schwannoma, 5 with dehiscence of the superior canal, 26 with Ménière’s disease, 12 with vestibular neuronitis in the acute phase, 9 with arreflexia bilateral horizontal canal, and 17 with unilateral vestibular function loss); Control group: 32 individuals without auditory or vestibular complaints |
Evaluation of the oVEMP through auditory stimulation, by air pathway, clicks or tone burst in the frequency of 500 Hz. |
The amplitude of the oVEMP was less in most patients with vestibular disorders. In the control group, there were no observed alterations in the oVEMP. |
Iwasaki et al.(19)
|
Tokyo |
Case control |
Case group: 14 patients with unilateral vestibular dysfunction (9 with Schwannoma and 5 with vestibular neuritis); Control group: 24 individuals without auditory or vestibular complaints. |
Evaluation of the oVEMP with binaural stimulation in individuals with unilateral vestibular dysfunction. Utilization of the oVEMP with auditory stimulation by air pathway, tone burst, in the frequency of 500 Hz. |
In the patients with unilateral vestibular dysfunction, there was no significant difference in amplitude and latency of response with binaural stimulation. In the control group, no alterations were observed in the oVEMP. |
Lee et al.(20)
|
Jeonju (South Korea) |
Transversal |
36 patients with benign paroxysmal positional vertigo (VPPB). Of these, 16 presented recurrent VPPB and 20 presented non-recurrent VPPB. |
Utilization of the oVEMP (auditory stimulation by air pathway, tone burst, in the frequency of 500 Hz) to test the hypothesis that the otolith dysfunction can be the cause of recurrence of VPPB. |
The responses of the ocular VEMP showed alterations in 8 individuals in the recurrent VPPB group and in 3 individuals in the non-recurring BPPV group. |
Bremova et al.(21)
|
Munich |
Longitudinal |
30 patients with unilateral VPPB. |
Utilization of the oVEMP (auditory stimulation by bone pathway, tone burst, in the frequency of 500 Hz) to evaluate the success of liberatory maneuvers. |
After treatment, observed increase in the amplitude of the responses of the oVEMP. |
Seo et al.(22)
|
Osaka (Japan) |
Transversal |
16 patients with VPPB. |
Utilization of the oVEMP (auditory stimulation by air pathway, tone burst, in the frequency of 500 Hz) to evaluate the utricular dysfunction in patients with VPPB. |
The oVEMP showed reduced responses in 5 patients with VPPB in the pre-treatment period. |
Nakahara et al.(23)
|
Fujisawa (Japan) |
Case control |
Case group: 12 patients with VPPB; Control group: 12 individuals without auditory or vestibular complaints. |
Utilization of the oVEMP (auditory stimulation by air pathway, tone burst, in the frequency of 500 Hz) to evaluate the utricular dysfunction signals in patients with VPPB. |
The patients with VPPB showed alterations in the responses of the oVEMP to the affected side. In the control group, no alterations were observed in the oVEMP. |
Manzari et al.(24)
|
Sidney |
Transversal |
133 patients with superior vestibular neuritis. |
Analysis of the activation of the potential n1 of the oVEMP (auditory stimulation by air pathway, tone burst, in the frequency of 500 Hz) in patients with superior vestibular neuritis. |
The amplitude of the potential n1 was lower for patients with superior vestibular neuritis on the affected side. |
Kinoshita, et al.(25)
|
Tokyo |
Transversal |
45 patients with unilateral vestibular Schwannoma. |
Comparison of the responses of the oVEMP (auditory stimulation by air pathway and by bone pathway, tone burst, in the frequency of 500 Hz), with the responses of the oVEMP by auditory stimulation by bone pathway in patients with vestibular Schwannoma. |
There was no difference between the responses of the oVEMP by auditory stimulation tone burst and the responses of the oVEMP by auditory stimulation by bone pathway. |
Lin and Young(26)
|
Taipei (Taiwan) |
Transversal |
20 patients with unilateral vestibular neuritis. |
Utilization of the oVEMP (auditory stimulation by bone pathway, tone burst, in the frequency of 500 Hz) to evaluate the vestibular nerve branches affected in patients with vestibular neuritis. |
11 patients showed altered responses to the oVEMP. After treatment, 3 patients showed normal responses to the oVEMP. |
Sandhu et al.(27)
|
Brighton (England) |
Cohort |
Diseased group: 12 patients with Ménière’s disease; Not diseased group: 8 individuals without auditory or vestibular complaints. |
Evaluation of the oVEMP (auditory stimulation by bone pathway, tone burst, in the frequency of 500 Hz) in various frequencies in patients with Ménière’s disease. |
The amplitude of response of the oVEMP was higher for the frequency of 500 Hz. |
Manzari et al.(28)
|
Sidney |
Transversal |
26 patients with dehiscence of the superior semicircular canal. |
Utilization of the oVEMP (auditory stimulation by bone pathway, tone burst, in the frequency of 500 Hz) to investigate the effect of dehiscence of the superior semicircular canal on the potential N10. |
The amplitude of the potential N10 was higher contralaterally to the affected side. |
Winters et al.(29)
|
Utrecht (Netherlands) |
Case control |
Case group: 27 patients with otosclerosis; Control group: 26 individuals without auditory or vestibular complaints. |
Utilization of the oVEMP (auditory stimulation by bone pathway, tone burst, in the frequency of 500 Hz) to investigate the utricular function in patients with otosclerosis. |
No differences were observed between the study group and the control group. In control group, no alterations were observed in the oVEMP. |
Murofushi et al.(30)
|
Fujisawa (Japan) |
Case control |
Case group: 26 patients with unilateral peripheral vestibular disorder (20 with Ménière’s disease and 6 with unilateral vestibular neuritis); Control group: 7 individuals without auditory or vestibular complaints |
Analysis of the responses of the oVEMP by auditory stimulation tone burst, by air pathway, in the frequency of 500 Hz with the answers caloric test of the vestibular test. |
The results of the oVEMP allowed researchers to observe significant association with the findings of the caloric test. Therefore, the oVEMP reflects, exclusively, the utricular function. In control group, no alterations were observed in the oVEMP. |