A trial of pulsed xenon ultraviolet disinfection to reduce Clostridioides difficile infection

Am J Infect Control. 2019 Apr;47(4):406-408. doi: 10.1016/j.ajic.2018.09.018. Epub 2018 Nov 28.

Abstract

Background: An intervention was designed to test whether the addition of an ultraviolet (UV) disinfection step after terminal cleaning would be helpful in reducing Clostridium difficile infection (CDI) rates in a real-world situation.

Methods: This study was a quasi-experimental design using 3 units as intervention units for the intervention and 3 similar units as control units. Intervention units 2 hematology and bone marrow transplant units and one medical-surgical unit at a large teaching hospital in the Midwest. UV disinfection was added after patient discharge and terminal cleaning in the intervention units.

Results: At baseline, CDI rates in the intervention and control arms were similar. During the 6 months of UV disinfection, the CDI rate in the intervention units decreased to 11.2 per 10,000 patient days, compared with 28.7 per 10,000 patient days in the control units (P = .03). In addition, the intervention units also saw a reduction in vancomycin-resistant enterococci acquisition.

Conclusions: The addition of UV disinfection to the terminal cleaning resulted in a reduction in CDI that has been sustained over several months 2 years.

Keywords: Bone marrow transplant units; Environmental cleaning; Terminal cleaning; VRE.

MeSH terms

  • Clostridioides difficile / drug effects*
  • Clostridioides difficile / radiation effects*
  • Clostridium Infections / prevention & control*
  • Cross Infection / prevention & control*
  • Disinfection / methods*
  • Hospitals, Teaching
  • Housekeeping, Hospital / methods
  • Humans
  • Midwestern United States
  • Non-Randomized Controlled Trials as Topic
  • Ultraviolet Rays*
  • Xenon / pharmacology*

Substances

  • Xenon