[The effect of neck rotation on auditory evoked brainstem potentials in patients with degenerative cervical spine...

Using the neck rotation test during recording of auditory brainstem evoked potentials the authors examined 60 subjects aged 16-60 years, including 20 healthy ones and 40 with cervical spondylarthrosis. The Neuromatic 2000 C Dantec device was used. Half the patients with cervical spine changes had also receptive hearing damage of low degree. The study demonstrated that neck rotation affected the latency time of the analysed waves I and II. The time was significantly prolonged in the patients with spondylarthrosis. The authors believe that simultaneous prolongation of the mean latency between waves I-III suggests worse compensation of circulation in patients, especially in the initial part of the auditory pathway. The authors think that the neck rotation test could be used in the study of brainstem auditory evoked potentials as a challenge test.