Abstract
The authors report a case of Shy-Drager syndrome in a 51-year-old male with complaints of dizziness, syncope and incontinence. Neuro-otological examination on this patient revealed positional nystagmus, abnormal waves in OKP test and ETT, abnormal findings in standing test, stepping test and past-pointing test, normal caloric test and dysfunction of autonomic nerves.
The authors discussed the significance of the neuro-otological tests, particularlly OKP test and ETT, in understanding the pathogenesis of the disease and the mechanism of development of various symptoms in this disease.