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Digoxin toxicity in the aged. Characterising and avoiding the problem.

A P Passmore1, G D Johnston

  • 1University of Sydney, Concord, New South Wales, Australia.

Drugs & Aging
|September 1, 1991
PubMed
Summary
This summary is machine-generated.

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Elderly patients are at higher risk for digoxin toxicity due to dosing and interactions. Improved formulations and monitoring help reduce adverse effects and mortality from this common heart medication.

Area of Science:

  • Pharmacology
  • Geriatrics
  • Cardiology

Background:

  • Digoxin is frequently prescribed for atrial fibrillation and cardiac failure, especially in the elderly.
  • The drug has a narrow therapeutic range, increasing the risk of adverse effects in older adults.
  • Elderly patients, particularly those with coexistent diseases and on multiple medications, face higher risks of digoxin toxicity.

Purpose of the Study:

  • To discuss the challenges and contributing factors to digoxin toxicity in the elderly population.
  • To highlight the difficulties in diagnosing digoxin toxicity in older patients due to nonspecific symptoms.
  • To explore strategies for preventing and managing digoxin toxicity in elderly individuals.

Main Methods:

  • Review of pharmacological principles related to digoxin in the elderly.

Related Experiment Videos

  • Discussion on the role of serum digoxin concentration measurement in diagnosis.
  • Analysis of factors contributing to the decreasing incidence of digoxin toxicity.

    • Main Results:

    • Elderly patients exhibit higher rates of digoxin toxicity due to increased prescription rates and susceptibility.
    • Diagnosis of digoxin toxicity in the elderly is challenging due to nonspecific and overlapping symptoms.
    • Serum digoxin concentration measurement aids diagnosis but should not replace clinical judgment.

    Conclusions:

    • Improved digoxin formulations, increased awareness, serum level monitoring, and considering digoxin withdrawal have reduced toxicity incidence.
    • Enhanced understanding of digoxin's causes and prevention is crucial for reducing morbidity and mortality in the elderly.
    • Proactive pharmacological management and clinical vigilance are essential for safe digoxin use in older populations.