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Related Experiment Videos

Hypomagnesaemia in elderly digitalised patients.

B J Martin1, J K McAlpine, B L Devine

  • 1Department of Geriatric Medicine, Lightburn Hospital, Glasgow.

Scottish Medical Journal
|June 1, 1988
PubMed
Summary
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Elderly patients on digoxin and diuretics face a high risk of hypomagnesaemia (low magnesium). This study found 16% of admitted elderly patients had low magnesium levels, highlighting a critical need for awareness.

Area of Science:

  • Geriatric Medicine
  • Clinical Pharmacology
  • Cardiology

Background:

  • Hypomagnesaemia and hypokalaemia are established risk factors for digoxin toxicity.
  • Elderly patients, particularly those on diuretic therapy, are considered a vulnerable population for electrolyte imbalances.

Purpose of the Study:

  • To assess the prevalence of hypomagnesaemia and hypokalaemia in elderly patients admitted to a Geriatric Assessment Unit who were receiving digoxin.
  • To raise awareness regarding the potential for magnesium depletion in this patient group.

Main Methods:

  • A 12-month prospective survey was conducted.
  • All patients receiving digoxin upon admission to the Geriatric Assessment Unit were included.
  • Serum magnesium and potassium levels were assessed.

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Main Results:

  • 16% of elderly patients receiving digoxin were found to be hypomagnesaemic.
  • No patients in the survey were found to be hypokalaemic.
  • The findings indicate a significant prevalence of magnesium depletion.

Conclusions:

  • Hypomagnesaemia is a common finding in elderly patients on digoxin therapy.
  • There is a critical need for increased clinical vigilance regarding magnesium levels in elderly patients concurrently treated with digoxin and diuretics.
  • Proactive monitoring and management of magnesium levels are essential to prevent digoxin toxicity in this population.