Hyperkalaemia and hypokalaemia are common in heart failure and associated with worse outcomes. However, the optimal potassium range is unknown. We sought to determine the optimal range of potassium in… Click to show full abstract
Hyperkalaemia and hypokalaemia are common in heart failure and associated with worse outcomes. However, the optimal potassium range is unknown. We sought to determine the optimal range of potassium in patients with heart failure and reduced ejection fraction (< 40%) by exploring the relationship between baseline potassium level and short‐ and long‐term outcomes using the Swedish Heart Failure Registry from 1 January 2006 to 31 December 2012.
               
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