Title

Microbiological evaluation of the ability of the DEKO-190 Washer/Disinfector to remove Clostridium difficile spores from bedpan surfaces

Document Type

Journal Article

Publication Title

Infection, Disease & Health

Volume

24

Issue

4

First Page

208

Last Page

211

PubMed ID

31387799

Publisher

Elsevier

School

School of Medical and Health Sciences

RAS ID

30004

Funders

Rhima Pty Ltd

Comments

Originally published as: Collins, D. A., Carson, K. C., & Riley, T. V. (2019). Microbiological evaluation of the ability of the DEKO-190 Washer/Disinfector to remove Clostridium difficile spores from bedpan surfaces. Infection, Disease & Health, 24(4), 208-211.

Original article available here.

Abstract

BACKGROUND: Clostridium difficile is a major nosocomial pathogen causing mild diarrhoea to life-threatening pseudomembranous colitis, and its spores frequently contaminate hospital environments and equipment. Washer/Disinfectors (WDs) are commonly used to clean and decontaminate soiled equipment in health care facilities. This study aimed to evaluate the effectiveness of the DEKO-190 WD in removing C. difficile spores from bedpans.

METHODS: Plastic carriers were inoculated with suspensions of C. difficile spores in autoclaved (sterile) human faeces. The carriers were then taped to a sterile plastic bedpan which was subjected to short, long or intensive wash cycles in the WD using one of two test detergents: Formula A (generic) and Formula B (highly alkaline). Mean log10 reductions in spores were calculated for each wash cycle.

RESULTS: Mean log10 reductions were 3.21(SEM ± 0.20) and 2.82 (±0.13) for Formula A and B, respectively, for the short cycle. The mean log10 reductions using the long wash cycle were 3.65 (±0.44) using Formula A and 5.30 (±0.43) using Formula B, while log10 reductions were 3.37 (±0.58) (Formula A) and 4.64 (±0.47) (Formula B) for the intensive cycle. Washing with the DEKO-190 significantly reduced spore concentrations on carrier surfaces on a bedpan. Spore counts were most effectively reduced when carriers were washed on a long or intensive wash cycle using an alkaline detergent.

DOI

10.1016/j.idh.2019.07.001

Share

 
COinS