The assessment of cardiac autonomic functions in adolescents with a family history of premature atherosclerosis
Clinics
; 69(12): 823-827, 2014. tab, graf
Article
in En
| LILACS
| ID: lil-732396
Responsible library:
BR1.1
ABSTRACT
OBJECTIVES:
Subclinical atherosclerosis has been recently detected in adolescents with a family history of premature atherosclerosis. However, no studies in the literature have assessed the cardiac autonomic functions of these adolescents. The aim of this study was to evaluate the cardiac autonomic functions of adolescents with a family history of premature atherosclerosis compared with those of age- and gender-matched adolescents without a family history of atherosclerosis.METHOD:
We evaluated the cardiac autonomic functions of 36 adolescents with a family history of premature atherosclerosis (Group 1) and compared them with those of 31 age- and gender-matched adolescents whose parents did not have premature atherosclerosis (Group 2). Twenty-four-hour time domain (standard deviation of all normal sinus RR intervals [SDNN], standard deviation of the mean of normal RR intervals in each 5-minute segment [SDANN], root-mean-square differences in successive RR intervals) and frequency domain (very low frequency, low frequency, high frequency, low frequency/high frequency) parameters of heart rate variability were used for the evaluation of cardiac autonomic functions.RESULTS:
There were no differences in the time and frequency domain parameters of heart rate variability between the two groups. Heart rate was negatively correlated with SDNN (r = -0.278, ...Key words
Full text:
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Index:
LILACS
Main subject:
Autonomic Nervous System
/
Coronary Artery Disease
/
Heart
/
Heart Rate
Type of study:
Etiology_studies
/
Risk_factors_studies
Limits:
Adolescent
/
Child
/
Female
/
Humans
/
Male
Language:
En
Journal:
Clinics
Journal subject:
MEDICINA
Year:
2014
Type:
Article