Effect of potassium-sparing diuretics on the renin-angiotensin-aldosterone system and potassium retention in heart failure

Br Heart J. 1976 Oct;38(10):1025-30. doi: 10.1136/hrt.38.10.1025.

Abstract

The renin-angiotensin-aldosterone system and electrolyte levels in 11 patients with heart failure controlled on digoxin and frusemide were investigated after separate periods of Slow K, spironolactone, and amiloride therapy. When spironolactone or amiloride replaced Slow K, distinct parallel increments in the levels of renin, angiotensin II, and aldosterone resulted. Though plasma potassium was generally higher after spironolactone and amiloride than after Slow K, exchangeable potassium was similar with the three regimens. There was no significant relation between plasma potassium and concurrent exchangeable potassium.

MeSH terms

  • Adult
  • Aged
  • Aldosterone / blood*
  • Amiloride / therapeutic use
  • Angiotensin II / blood*
  • Digoxin / therapeutic use
  • Female
  • Furosemide / therapeutic use
  • Heart Failure / blood
  • Heart Failure / drug therapy*
  • Humans
  • Male
  • Middle Aged
  • Potassium / metabolism
  • Potassium / therapeutic use
  • Potassium / urine
  • Renin / blood*
  • Sodium / blood
  • Sodium / urine
  • Spironolactone / therapeutic use
  • Urea / blood

Substances

  • Angiotensin II
  • Spironolactone
  • Aldosterone
  • Digoxin
  • Amiloride
  • Furosemide
  • Urea
  • Sodium
  • Renin
  • Potassium