A PROPOSAL FOR INTRODUCING A MODIFIED VESTIBULAR INDEX IN NEUROTOLOGY- THE CLASSIFICATION OF VESTIBULAR NEURONITIS

The parameters for vestibular dysfunction were modified after our own studies. This index includes the degree of vertigo present, spontaneou s nystagmus, dysfunction of the vestibulospinal reflexes and caloric a nd postrotatory side differences, The index is applicable for defining the extent of a lesion, follow-up, defining its stage and the results of therapy, Introduction of the modified vestibular index is proposed for use in clinical diagnosis. Classification of vestibular neuroniti s into groups A? B and C is suggested on the basis of the reversibilit y of spontaneous nystagmus after caloric stimulation.