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Published on: May 26, 2022

Management of Diuretic Induced Hypokalemia in Elderly Hypertensives

Bertram Pitt1, Christopher S Wilcox2

  • 1Department of Cardiology, University of Michigan, Ann Arbor (B.P.).

Hypertension (Dallas, Tex. : 1979)
|June 2, 2026
PubMed

Insights

Hypokalemia, low potassium, is common in elderly hypertensive patients on diuretics, increasing risks. This review highlights unique brain mechanisms that necessitate specific strategies for prevention and treatment in this population.

Area of Science:

  • Gerontology
  • Cardiology
  • Nephrology

Background:

  • Hypokalemia is prevalent in elderly hypertensive individuals using diuretics.
  • This electrolyte imbalance exacerbates cardiovascular, cerebrovascular, and renal risks.

Purpose of the Study:

  • To review evidence on the specific risks of diuretic-induced hypokalemia in elderly hypertensives.
  • To explore the unique neurobiological mechanisms involved.
  • To inform preferred strategies for hypokalemia management in this cohort.

Main Methods:

  • Literature review of existing studies and evidence.
  • Analysis of the role of aldosterone and mineralocorticosteroid receptors.
  • Examination of cortisol's interaction with these receptors in the brain.

Main Results:

  • Diuretic-induced hypokalemia increases aldosterone penetration into the brain.
  • Enhanced mineralocorticosteroid receptor signaling and cortisol activation contribute to heightened risk.
  • These factors create a unique pathophysiological profile in affected patients.

Conclusions:

  • Elderly hypertensives with diuretic-induced hypokalemia face distinct risks due to central mineralocorticoid excess.
  • Management strategies must consider these specific brain-related mechanisms.
  • Tailored approaches are crucial for preventing and treating hypokalemia in this vulnerable group.

Keywords:
agedbraindiureticshumanshypokalemia

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