[Early auditory evoked potentials in spinocerebellar heredodegenerative involvement].

Results of early auditory evoked potentials, recorded during exploration of spinocerebellar heredodegenerative lesions (21 cases of Friedreich's disease, 8 cases of Pierre-Marie's disease and 3 cases of Strumpell-Lorraine disease), are analyzed. Tracings showed alteration of auditory BER whereas tonal audiometry was normal. Analysis of BER demonstrated lengthening of the latency periods, a rise in thresholds without latency period increases and a tracing that was sometimes flat or with waves that were difficult to recognize.

[Auditory and vestibular lesions in Behcet's disease].

Auditory and vestibular function tests were conducted in 16 patients with Behcet's disease. Vestibular lesions included spontaneous nystagmus in 5 cases, and a bilateral vestibular syndrome after provoked tests in 13 cases (7 of the deficiency type and 6 irritative in nature). Findings after auditory tests were bilateral symmetric deafness in 2 cases; one of the perception type and the other showing mixed features.