Effect of 35 years beta-adrenergic blockade therapy on autonomic cardiovascular modulation. A case study.
Acta Clin Belg
; 64(6): 505-12, 2009.
Article
em En
| MEDLINE
| ID: mdl-20101873
ABSTRACT
The influence of long duration beta-blockade on autonomic and cardiovascular function remains not completely understood. The aim of this study was to evaluate the effect of long duration beta-adrenergic blockade treatment for hypertension control, on autonomic cardiovascular control in a 78-year-old male patient in relation to population findings. Heart rate variability was determined in the frequency domain (Total power, low frequency power and high frequency power), during baseline (supine and standing) and during 24 hour Holter recording. Results were compared with heart rate and heart rate variability data obtained from a normal healthy male population as a function of age. Circadian rhythm remained present. Heart rate during daytime was lower compared to the population group. None of the heart rate variability parameters were different from the normal population age group. Our results show that after 35 years of beta-blockade treatment, autonomic modulation of cardiac function remains within normal limits for that age group. Blood pressure remained at the higher limits (120-150/60-80 mmHg), but under control.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Sistema Nervoso Autônomo
/
Antagonistas Adrenérgicos beta
/
Sistema de Condução Cardíaco
/
Frequência Cardíaca
/
Hipertensão
Tipo de estudo:
Diagnostic_studies
Limite:
Aged
/
Humans
/
Male
Idioma:
En
Revista:
Acta Clin Belg
Ano de publicação:
2009
Tipo de documento:
Article
País de afiliação:
Bélgica