Sleep inversion

Abstract: Objective. The article analyzes the clinical features of sleep in preschoolers aged 3-7 years in the city of Perm on the basis of a continuous questionnaire method. Materials and methods. The presence of complaints related to sleep at the time of the survey was substantiated in 45 % of children of the younger age group (from 3 to 5 years) and 41 % of children in the older age group (from 5 to 7 years). Results. Sexual dimorphism manifested itself in a significant dominance of intrasomnic disturbances with frequent awakenings and increased motor activity during sleep in older boys. Nocturnal pains and / or cramps in the leg muscles prevailed in girls of the older age group. In the structure of parasomnias in Perm preschool children, there predominated nightmares (16.5 %), night fears (13.3 %), bruxism (14.8 %), sleepwalking (12.8 %), enuresis (8.2 %). Every fifth child of preschool age had sleep with an open mouth, snoring or puffing, hyperhidrosis during sleep and chronic adenotonsillar pathology, which does not exclude the presence of obstructive sleep apnea / hypopnea syndrome in this category of children. Conclusions. Sleep disorders were noted in a quarter of children under one year of age, manifested by difficult falling asleep, restless sleep and sleep inversion, which can be a marker of both disorders of maturation of chronobiological mechanisms and a high percentage of childhood behavioral insomnia.