PERIODIC PARAMETERS OF HEART RHYTHM VARIABILITY IN CHILDREN WITH IDEOPATHIC RIGHT BUNDLE BRANCH BLOCK

Abstract

The article provides information on the research conducted to study the periodic parameters of heart rhythm variability (HRV) in children with idiopathic right bundle branch block (RBBB). 82 children were involved in the study, taking into account the periods of childhood and age characteristics. These children are divided into 2 groups, 3-6 years old and 12-17 years old. In each group, the main group of children with RBBB were compared with the practically healthy control group children of the corresponding age. Of these, 14 children (7 boys, 7 girls) aged 3-6 with RBBB were included in the main group of the 1st group, and 11 practically healthy children aged 3-6 were included in the control group. 43 children aged 12-17 with RBBB (27 boys, 16 girls) were included in the main group of the 2nd group, and 14 practically healthy children aged 12-17 were included in the control group. In children with RBBB, certain trends in the indicators of HRV were found compared to healthy children in both groups. The indicators of HRV reflected the predominance of sympathetic tone in children with 1st group RBBB (3-6 years old), and the increase of parasympathetic activity in children with 2nd group (12-17 years old) RBBB. The analysis of the obtained results shows that it is possible to detect the imbalance between the sympathetic and parasympathetic departments of the autonomic nervous system by studying the periodic parameters of the HRV in children with RBBB. This can be important in preventing cardiovascular pathologies and their complications in children with RBBB.