Study confirms effectiveness of UV-C-emitting device in combating pathogens in hospital environment

Published on April 20, 2013 at 7:15 AM · No Comments

A recent study funded by Centers for Disease Control and Prevention (CDC) Epicenters Program and published in Infection Control and Hospital Epidemiology ( Deverick H. Anderson , M.D., MPH et al., 2013) supports and expands on previously published studies confirming the effectiveness of an automated UV-C-emitting device to combat the pathogens Clostridium difficile (C. diff.), vancomycin-resistant enterococci (VRE) and Acinetobacter spp. – some of the common culprits of health care-associated infections drawing increased attention for hospitals across the country.

It is well-documented that these pathogens, along with others such as methicillin-resistant Staphylococcus aureus (MRSA) and carbapenem-resistant Enterobacteriaceae (CRE), can persist on environmental surfaces for days or weeks, and C. diff. spores can exist as long as five months on surfaces in hospital environments. Standard approaches to environmental cleaning have proven inadequate with studies showing that 50 percent or more of hospital surfaces go untouched during terminal room disinfection, leading to the transmission of these hardy pathogens from one patient to another. The data published by the Society of Healthcare Epidemiology of America (SHEA) concluded that an automated UV-C system capable of delivering a measured and consistent UV-C dose significantly improved terminal disinfection of patient areas in hospitals.

The only device utilized in the study is TRU-D SmartUVC™, a portable UV disinfection system unique to the market with Sensor360™ technology, which analyzes the unique contents, shape and size of the room to calculate the precise pathogen-lethal dose of UV-C light needed to properly disinfect the environment (both line-of-site and shadowed spaces). A proper dose of UV-C light modifies the DNA structure of an infectious cell so it cannot reproduce and therefore cannot colonize and spread. These results were confirmed by the study, which reported a significant decrease in the total number of colony-forming units (CFUs) of these pathogens in both direct and indirect line of sight.

"Results of TRU-D have been supported by multiple independent peer-reviewed studies conducted by leading authorities in infection control and epidemiology," said Chuck Dunn , president of Memphis-based Lumalier, maker of TRU-D SmartUVC. "We are pleased to add another reputable third-party validation of our method of automated no-touch disinfection."

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