[Sleep disorders in patients with brain stem lesions]

In 10 patients with clinical symptoms of brainstem lesions of various aethiology and different localization within the brainstem polysomnographic records were performed. Patients were divided into two groups (according to age) and the results obtained in each group were compared with the results in control group. In all patients prolongation of I and III+IV phases and reduction of II and the REM phase were noted. In some patients REM was not observed at all. These results may confirm the theory of the localization of the sleep centre in the brainstem, specially the centre of induction of the REM.