[Circadian excretion of electrolytes in the saliva of patients with sequelae of craniocerebral injuries].

The majority of patients with consequences of a craniocerebral trauma (CCT) showed a decrease in the amplitude of the circadian rhythm of Na excretion with saliva while the rhythm of K excretion remained normal. No significant differences were found between the degree of changes in the circadian excretion of electrolytes with saliva in patients with a documented CCT and in patients in whom the diagnosis of CCT was based on the clinical signs. A certain parallelism was found between the severity of the studied pathology and disorders of the structure and amplitude of the circadian rhythm of Na and K excretion with saliva, which is indicative of the weakening of the body's compensatory processes.