← brief for 2026-09-06 · Slowing decline

Dynamic potassium variability (K-CV) as an independent predictor of mortality in maintenance hemodialysis.

Key takeaways

This study followed 201 people on dialysis for about 6 years and found that bigger swings in blood potassium levels — measured as K-CV — were linked to higher death risk, even after adjusting for age, diabetes, and other health issues. Because it is an observational study, it shows a link but does not prove that potassium swings cause higher death risk. People on dialysis should talk to their care team about keeping potassium levels stable, as large swings may be harmful.

Who did this work

Ma Y · Liu X · Wang X · Zhongxin L

Source

Article · PubMed, CKD severity and reversal · 2026 Sep 6
https://pubmed.ncbi.nlm.nih.gov/42702576/