Risk of digoxin intoxication in heart failure patients exposed to digoxin-diuretic interactions: a population-based study.
Abstract
WHAT IS ALREADY KNOWN ABOUT THIS SUBJECT * Increased frequency of electrolyte abnormalities and cardiac arrhythmias among patients exposed to digoxin-diuretic interactions has been well-documented in numerous descriptive studies. * Nonetheless, a clear causal relationship has not been established in these studies. WHAT THIS STUDY ADDS * The risks of digoxin intoxication associated with use of digoxin in combination with any diuretic use, types of diuretics, combinations of diuretics, and individual diuretics were quantified using a population-based nested case-control study design. * The combined therapy of digoxin with any diuretic is associated with a 3.08-fold increase in the risk of digoxin intoxication. * Regarding diuretic class, the risk carried by loop diuretics is greater than that of thiazides or potassium-sparing diuretics, and the risk varies with different combinations of diuretic classes and individual diuretics. AIMS To quantify the digoxin intoxication risk associated with exposure to digoxin-diuretic interactions, and evaluate whether the risk varies by diuretic type, individually or in combination. METHODS This was a population-based nested case-control study in which data from the National Health Insurance Re...Continue Reading
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