Cardiac autonomic control in adolescents with primary hypertension.
Eur J Med Res
; 14 Suppl 4: 101-3, 2009 Dec 07.
Article
en En
| MEDLINE
| ID: mdl-20156736
ABSTRACT
BACKGROUND:
Impairment in cardiovascular autonomic regulation participates in the onset and maintenance of primary hypertension.OBJECTIVE:
The aim of the present study was to evaluate cardiac autonomic control using long-term heart rate variability (HRV) analysis in adolescents with primary hypertension. SUBJECTS ANDMETHODS:
Twenty two adolescent patients with primary hypertension (5 girls/17 boys) aged 14-19 years and 22 healthy subjects matched for age and gender were enrolled. Two periods from 24-hour ECG recording were evaluated by HRVanalysis:
awake state and sleep. HRV analysis included spectral power in low frequency band (LF), in high frequency band (HF), and LF/HF ratio. -RESULTS:
In awake state, adolescents with primary hypertension had lower HF and higher LF and LF/HF ratio. During sleep, HF was lower and LF/HF ratio was higher in patients with primary hypertension.CONCLUSIONS:
A combination of sympathetic predominance and reduced vagal activity might represent a potential link between psychosocial factors and primary hypertension, associated with increased cardiovascular morbidity.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Sistema Nervioso Autónomo
/
Corazón
/
Hipertensión
Límite:
Adolescent
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Adult
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Female
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Humans
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Male
Idioma:
En
Año:
2009
Tipo del documento:
Article