Related Experiment Videos
Acinetobacter calcoaceticus outbreak associated with peritoneal dialysis
Abstract:
Investigation of an outbreak of contamination of dialysis drainage fluid with Acinetobacter calcoaceticus var. anitratus identified a previously unrecognized source for dialysis associated infections. Over a 4-month period, 25 peritoneal dialysis treatments were administered to 13 hospital patients. Of the 25 treatments for which culture results were available, 14 were associated with dialysis drainage fluid cultures positive for A. calcoaceticus. A water bath used to warm bottles of peritoneal dialysate before use was the reservoir for the bacteria, and investigation showed in vitro that bath water could contaminate the dialysate. It appears likely that the dialysate became contaminated when the prong of the fluid administration set was inserted through the rubber bung on the dialysate bottles. This outbreak illustrates the potential importance of environmental reservoirs in infections complicating peritoneal dialysis.
Insights
A water bath contaminated peritoneal dialysis fluid with Acinetobacter calcoaceticus, leading to infections in 14 treatments. This highlights environmental reservoirs as a key risk factor for dialysis-associated infections.
Area of Science:
- Microbiology
- Infectious Diseases
- Nephrology
Background:
- Dialysis-associated infections pose a significant risk to patient health.
- Identifying sources of contamination is crucial for preventing outbreaks.
Purpose of the Study:
- To investigate an outbreak of Acinetobacter calcoaceticus var. anitratus contamination in dialysis drainage fluid.
- To identify the source of contamination and understand its role in dialysis-associated infections.
Main Methods:
- Retrospective analysis of 25 peritoneal dialysis treatments over 4 months.
- Microbiological culturing of dialysis drainage fluid.
- Environmental investigation to identify bacterial reservoirs.
Main Results:
- 14 out of 25 treatments showed positive cultures for A. calcoaceticus.
- A water bath used for warming dialysate was identified as the bacterial reservoir.
- In vitro studies confirmed bath water could contaminate dialysate.
Conclusions:
- Environmental reservoirs, specifically a water bath, can be a source of Acinetobacter calcoaceticus in peritoneal dialysis.
- This highlights the importance of environmental hygiene in preventing dialysis-related infections.