Why the study?
Are lower (<3.5 mEq/L) and higher (≥4.5 mEq/L) serum potassium levels associated with increased mortality in patients with acute myocardial infarction?
Are lower (<3.5 mEq/L) and higher (≥4.5 mEq/L) serum potassium levels associated with increased mortality in patients with acute myocardial infarction?
In patients with acute myocardial infarction, both hypokalemia (<3.5 mEq/L) and high-normal/hyperkalemia (≥4.5 mEq/L) are associated with increased mortality.
May support avoiding potassium extremes in AMI; leaves open whether targeting 3.5-4.5 mEq/L improves outcomes.
These findings indicate that both lower (<3.5 mEq/L) and higher (≥4.5 mEq/L) serum potassium levels are associated with an increased risk of mortality of patients with AMI.
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Xi et al. (2019) studied this question.