ISSN 1612-3352

Editors in Chief

Prof. Dr. Claus F. Claussen, Neurootological Research Institute of the Research Society for Smell, Taste, Hearing and Equilibrium Disorders at Bad Kissingen (4-G-F). Bad Kissingen, Germany.
Dr. med. Julia M. Bergmann,
Dr. med. Guillermo O. Bertora,
Otoneuroophthalmological Neurophysiology,
Buenos Aires, Argentina.

Production Managers

Dr. med. Julia M. Bergmann,
Dr. med. Guillermo O. Bertora,
Otoneuroophthalmological Neurophysiology,
Buenos Aires, Argentina.


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The editors welcome authors to submit articles for publications in the ASN.

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A new method of vestibular diagnosis

Abstract

INTRODUCTION: Our purpose of study is to verify the possibility of applying a diagnostic method for the evaluation of vestibular function using an “atraumatic” method of examination. We are currently using a computerized system that will objectively analyse the answer of the patients undergoing “virtual reality” stimuli in the absence of influence of external parameters.
MATERIALS & METHODS: 84 patients with Monolateral Peripheral Vestibular Dysfunction, beteween 18 and 72 years of age have been subjected to the examinations. Our protocol foresaw an accurate anamnestic record and an objective otoneurologic examination (caloric test). We used a special helmet: “a visor with crystals” mounted on a band support – (Virtual I Glasses model). The patients have to observe in to the visor for 20 seconds: a white bar is placed in the middle of a black visual field. The middle centre of the visual field is the absolute zero, the bar turns around the absolute zero according to the movement made by the children. After 20 seconds the informatic system shows the widths of the angle between the final position of the bar and the horizontal axis passing through the zero.
RESULTS: with the use of this method we can verify the applicability of a “virtual subjective horizontal” that is a modification of the evaluation of the “subjective vertical”.
CONCLUSIONS: In all the patients we have found a correlation between the final position of the bar and Monolateral Peripheral Vestibular Dysfunction. No patient has shown any adverseneurological symptomatology and all have completed the examination with good tolerance to this diagnostic method; therefore, the result of our study shows that this method can be used very easily in the diagnosis of vestibular diseases.

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