European Journal of Clinical Pharmacology

, Volume 19, Issue 2, pp 107–112

Haemodynamic and hormonal changes during acute and chronic diuretic treatment in essential hypertension

  • J. C. Roos
  • P. Boer
  • H. A. Koomans
  • G. G. Geyskes
  • E. J. Dorhout Mees
Originals

DOI: 10.1007/BF00568396

Cite this article as:
Roos, J.C., Boer, P., Koomans, H.A. et al. Eur J Clin Pharmacol (1981) 19: 107. doi:10.1007/BF00568396

Summary

The short- and long-term effects of diuretic treatment with chlorthalidone 50 mg/day on haemodynamic and hormonal parameters in patients with essential hypertension (WHO grade I) were investigated. After three days of treatment, all patients showed a rise in plasma renin activity (PRA), plasma aldosterone (PA), urinary norepinephrine excretion (UNE) and heart rate (HR), and a decrease in body weight (BW) and extracellular volume (ECV) and blood volume (BV); the change in blood pressure (BP) was variable. The changes in BP were correlated with those in BV. After three months of therapy, the signs of volume depletion tended to fade, but the lower ECV persisted. In contrast to the 4-day study, after three months the change in BP correlated inversely with changes in ECV and renin dependency (saralasin response), and positively with PRA and changes in UNE. It is concluded that the BP response to diuretic treatment is determined by the adaptation with time of the haemodynamic reactions to the volume-depleted state. Whether this adaptation will take place cannot be predicted from the control values of the parameters studied, or from acute changes observed during the first days of treatment.

Key words

chlorthalidoneessential hypertensionhaemodynamicsplasma renin activityplasma aldosteroneurinary noradrenaline

Copyright information

© Springer-Verlag 1981

Authors and Affiliations

  • J. C. Roos
    • 1
  • P. Boer
    • 1
  • H. A. Koomans
    • 1
  • G. G. Geyskes
    • 1
  • E. J. Dorhout Mees
    • 1
  1. 1.Department of Nephrology and HypertensionUniversity HospitalUtrechtThe Netherlands