title: [Characteristics of circadian variability of heart rate during Holter monitoring].
abstract: 24-hour Holter monitoring of 60 healthy children aged 3 to 15 years provided criteria for assessing the circadian heart rate (HR) variations as a measure of alterations occurred in autonomic heart rhythm control. Specific HR dynamics during their sleep is described, which involves changes in steady-state rhythm and higher dispersion periods associated with the alternation of slow and fast sleep phases. Sex- and age-related HR features are defined during 24-hour monitoring.
authors.forename: L M
authors.initials: LM
authors.lastname: Makarov
authors.forename: Iu M
authors.initials: IuM
authors.lastname: Belozerov
authors.forename: N A
authors.initials: NA
authors.lastname: Belokon'
authors.forename: M V
authors.initials: MV
authors.lastname: Dobrynina
authors.forename: R R
authors.initials: RR
authors.lastname: Giorgobiani
authors.forename: G P
authors.initials: GP
authors.lastname: Akopov
mesh_terms: D000293:Adolescent; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D002940:Circadian Rhythm; D015716:Electrocardiography, Ambulatory; D005260:Female; D006339:Heart Rate; D006801:Humans; D008297:Male
vernacular_title: Kharakteristika tsirkadnoĭ variabel'nosti chastoty serdechnykh sokrashcheniĭ v period kholterovskogo monitorirovaniia.