Keywords
dialysate
Gram-negative bacteria
non-fermenting bacteria
How to Cite
Abstract
In Brazil, 90% of patients with renal failure depend on the hemodialysis procedures in order to remove the metabolic degradation products, water and mineral salts excesses from the organism, restoring the electrolyte and acid-base balance. Water is the main component of the dialysis therapy, and its chemical and microbiology quality is essential to avoid additional risks to patient. Dialysis solutions and equipments provide suitable environments for the microbial growth, particularly Gram-negative bacteria. In addition to bacteremia, Gram-negative microorganisms can be related to pyrogenic reactions. The objective of this study was to investigate the occurrence of non-fermenting Gram-negative bacteria in 97 dialysis water samples, and 27 dialysates analyzed from June 2005 to December 2006. Non-fermenting Gram-negative bacteria were detected in 29.6% of dialysates and in 49.5% of treated water samples. Nine bacteria species were isolated and identified; the Burkholderia cepacia complex was the most frequent (59.0%), followed by Stenotrophomonas maltophilia (13.1%).References
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