Aluminium toxicity during regular haemodialysis.

Area of Science:

• Nephrology
• Environmental Health
• Neuroscience

Background:

• Dialysis encephalopathy is a severe neurological disorder affecting patients undergoing renal dialysis.
• Previous studies suggested a link between aluminum exposure and dialysis encephalopathy.

Purpose of the Study:

• To investigate the geographical distribution and water supply link of dialysis encephalopathy in West Scotland.
• To determine the correlation between serum aluminum levels and water aluminum concentrations in affected patients.

Main Methods:

• Retrospective analysis of dialysis encephalopathy cases in West Scotland.
• Measurement of serum aluminum concentrations in patients dialyzing at home.
• Comparison of serum aluminum levels with local water supply aluminum concentrations.

Main Results:

• Dialysis encephalopathy cases were concentrated in three areas with high aluminum in the water supply.
• Patients with encephalopathy had significantly elevated serum aluminum levels.
• A strong correlation was observed between serum and water aluminum concentrations.

Conclusions:

• The study provides strong evidence that aluminum intoxication from the water supply is the primary cause of dialysis encephalopathy.
• Water used for dialysis fluid preparation is a major source of toxic aluminum exposure.
• Public health measures to control aluminum in water supplies are crucial for preventing dialysis encephalopathy.