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Hypokalaemia in alcoholic patients
Moses Elisaf1, Evangelos Liberopoulos, Eleni Bairaktari
1Department of Internal Medicine, Medical School, University of Ioannina, Ioannina, Greece.
Drug and Alcohol Review
|August 22, 2002
Summary
Hypokalaemia, or low potassium, is common in alcoholics due to various causes. Hypomagnesaemia-induced inappropriate potassium excretion is the predominant mechanism in alcoholic patients.
Area of Science:
- Internal Medicine
- Clinical Chemistry
- Nephrology
Background:
- Hypokalaemia is a frequent electrolyte disturbance in chronic alcohol users.
- The precise causes of low potassium levels in alcoholics remain unclear.
Purpose of the Study:
- To investigate the potential pathogenetic mechanisms of hypokalaemia.
- To analyze electrolyte abnormalities in a large cohort of alcoholic patients.
Main Methods:
- Studied 127 alcoholic patients admitted for alcohol-related issues.
- Compared serum potassium levels with a control group.
- Identified causes of hypokalaemia including inappropriate kaliuresis, diarrhoea, and respiratory alkalosis.
Main Results:
- Alcoholic patients exhibited significantly lower serum potassium (3.8 ± 1.1 mmol/l) than controls (4.6 ± 0.9 mmol/l).
- Inappropriate kaliuresis, linked to hypomagnesaemia, was found in 12 patients.
- Hypokalaemic patients more frequently presented with hypomagnesaemia and respiratory alkalosis.
Conclusions:
- Hypokalaemia is a common finding in alcoholics, resulting from diverse pathophysiological pathways.
- Inappropriate potassium excretion, driven by co-existing hypomagnesaemia, is the primary mechanism.