Abstract
Vestibular findings were compared among five groups comported of six control, five before, nine during and ten after streptomycin therapy. As a parameter representing the excitability of the vestibular apparatus, the total summation of maximum velocity of slow phase in the caloric nystagmus induced by bi-thermal stimuli was employed. Concerning this total sum of velocity, there was no significant difference among the five groups. Five patients were included in the last group who had been examined more than twice with regard to equilibrium tests and received therapy for disequilibrium. Two of them yielded remarkable improvement from the depressed total sum of velocity and is all of them CP-index was reduced.
A possibility of recovery from neural damage brought about by active therapy was discussed and the bibliotical survey was considered.