[The level of endotoxins in hemodialysis water and dialysate]

Inga Skarupskiene1, Inga Arūne Bumblyte, Vytautas Kuzminskis

  • 1Department of Nephrology, Kaunas University of Medicine, Kaunas, Lithuania. i.skarupskiene@mikrovisata.net

Abstract

Insights

Bacterial endotoxin levels in hemodialysis water and dialysate were below recommended limits in Lithuanian centers. This suggests current practices effectively control endotoxin contamination, safeguarding patients undergoing hemodialysis.

Area of Science:

  • Nephrology
  • Microbiology
  • Public Health

Background:

  • Hemodialysis involves blood-purifying fluid (dialysate) and water, which can harbor bacterial endotoxins.
  • Endotoxins may diffuse into patient blood, potentially causing severe health complications during dialysis.

Purpose of the Study:

  • To assess endotoxin levels in hemodialysis water and dialysate across multiple Lithuanian centers.
  • To evaluate compliance with established European safety guidelines.

Main Methods:

  • Collected samples of dialysis water (n=6) and dialysate (n=14) from six centers in three Lithuanian cities.
  • Quantified bacterial endotoxin levels using the Limulus Amebocyte Lysate (LAL) assay.

Main Results:

  • All samples showed endotoxin levels below 0.25 EU/mL.
  • A small percentage of water (16.7%) and dialysate (14.3%) samples exceeded 0.03 EU/mL.

Conclusions:

  • Endotoxin levels in the studied hemodialysis centers met European Pharmacopoeia and ERA-EDTA guidelines for conventional dialysis.
  • Dialysate quality in most centers also aligned with standards for ultrapure dialysate.

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