Analysis of heart rate variability demonstrates effects of development on vagal modulation of heart rate in healthy children.
J Pediatr
; 130(5): 725-9, 1997 May.
Article
in En
| MEDLINE
| ID: mdl-9152280
OBJECTIVES: Analysis of heart rate variability (HRV) has been found to be a useful method of assessing cardiovascular autonomic control, but normal values for standard HRV measures in children have not been established. We analyzed HRV in 60 healthy children aged 3 to 15 years to determine normal values and to assess the effects of development on cardiac autonomic control with the use of ambulatory electrocardiographic monitoring. RESULTS: The high-frequency (HF) component, an index of cardiac autonomic tone, increased significantly with age from 3 to 6 years (p < 0.01) and decreased with age from 6 to 15 years (p < 0.01), and the magnitude of HF correlated significantly with the R-R intervals. Thus the changes in cardiac autonomic tone could be described as a simple equation using age and heart rate. CONCLUSIONS: We present normal values and changes in the cardiac autonomic system during childhood after HRV analysis, which could lead to a better understanding and treatment of cardiac disease in children.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Autonomic Nervous System
/
Aging
/
Heart Rate
Limits:
Adolescent
/
Child
/
Child, preschool
/
Female
/
Humans
/
Male
Language:
En
Journal:
J Pediatr
Year:
1997
Document type:
Article
Affiliation country:
Japan
Country of publication:
United States