Optimal serum potassium concentrations in heart failure: an individual patient data meta-analysis - PubMed
2 hours ago
- #potassium
- #meta-analysis
- #heart failure
- Optimal serum potassium range in heart failure (HF) is studied for HFrEF and HFpEF via patient-level meta-analysis.
- In HFrEF, potassium <3.5 mmol/L increases mortality risks, with reverse J-shaped association; optimal range is 4.2-5.0 mmol/L.
- For HFpEF, the risk curve is flatter and U-shaped, but optimal potassium range is similar to HFrEF (4.2-5.0 mmol/L).
- Mild hyperkalaemia (5.0-5.5 mmol/L) in HFrEF is not linked to worse outcomes; hypokalaemia should be avoided.