Environmental decontamination of a hospital isolation room using high-intensity narrow-spectrum light

Maclean, Michelle; MacGregor, S.J.; Anderson, John G.; Woolsey, G. A.; Coia, John; Hamilton, Kate; Taggart, Ian; Watson, Stuart; Thakker, Bishan; Gettinby, G.

doi:10.1016/j.jhin.2010.07.010

Cited by 97 publications

(134 citation statements)

References 15 publications

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“…With this sort of information, it is not surprising that several manufacturers are developing automated room disinfection units that demonstrate superior decontamination of environmental objects and surfaces. These systems deliver various microbicidal products, including germicidal light, hydrogen peroxide, steam, and ozone (171)(172)(173)(174)(175).…”

Section: Automated Decontamination Devicesmentioning

confidence: 99%

Controlling Hospital-Acquired Infection: Focus on the Role of the Environment and New Technologies for Decontamination

2014

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SUMMARY There is increasing interest in the role of cleaning for managing hospital-acquired infections (HAI). Pathogens such as vancomycin-resistant enterococci (VRE), methicillin-resistant Staphylococcus aureus (MRSA), multiresistant Gram-negative bacilli, norovirus, and Clostridium difficile persist in the health care environment for days. Both detergent- and disinfectant-based cleaning can help control these pathogens, although difficulties with measuring cleanliness have compromised the quality of published evidence. Traditional cleaning methods are notoriously inefficient for decontamination, and new approaches have been proposed, including disinfectants, steam, automated dispersal systems, and antimicrobial surfaces. These methods are difficult to evaluate for cost-effectiveness because environmental data are not usually modeled against patient outcome. Recent studies have reported the value of physically removing soil using detergent, compared with more expensive (and toxic) disinfectants. Simple cleaning methods should be evaluated against nonmanual disinfection using standardized sampling and surveillance. Given worldwide concern over escalating antimicrobial resistance, it is clear that more studies on health care decontamination are required. Cleaning schedules should be adapted to reflect clinical risk, location, type of site, and hand touch frequency and should be evaluated for cost versus benefit for both routine and outbreak situations. Forthcoming evidence on the role of antimicrobial surfaces could supplement infection prevention strategies for health care environments, including those targeting multidrug-resistant pathogens.

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Section: Automated Decontamination Devicesmentioning

confidence: 99%

Controlling Hospital-Acquired Infection: Focus on the Role of the Environment and New Technologies for Decontamination

2014

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“…such as using a high-intensity narrow-spectrum light en vironmental decontamination system (HINS-light EDS) 36 or ultraclean airflow mobile units. 37 Our study also shows that when contamination levels were virtually zero, almost no SSIs occurred for a total of 17 643 interventions, providing a large margin from which to safely draw our conclusions.…”

Section: Environmental Biosafety Factorsmentioning

confidence: 99%

Analyzing the risk factors influencing surgical site infections: the site of environmental factors

Martínez

Martín-Moreno

et al. 2017

CJS

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Background: Addressing surgical site infection (SSI) is accomplished, in part, through studies that attempt to clarify the nature of many essential factors in the control of SSI. We sought to examine the link between multiple risk factors, including environmental factors, and SSI for prevention management. Methods:We conducted a longitudinal prospective study to identify SSIs in all patients who underwent interventions in 2014 in 8 selected hospitals on the Mediterranean coast of Spain. Risk factors related to the operating theatre included level of fungi and bacterial contamination, temperature and humidity, air renewal and differential air pressure. Patient-related variables included age, sex, comorbidity, nutrition level and transfusion. Other factors were antibiotic prophylaxis, electric versus manual shaving, American Society of Anaesthesiologists physical status classification, type of intervention, duration of the intervention and preoperative stay.Results: Superficial SSI was most often associated with environmental factors, such as environmental contamination by fungi (from 2 colony-forming units) and bacteria as well as surface contamination. When there was no contamination in the operating room, no SSI was detected. Factors that determined deep and organ/space SSI were more often associated with patient characteristics (age, sex, transfusion, nasogastric feeding and nutrition, as measured by the level of albumin in the blood), type of intervention and preoperative stay. Antibiotic prophylaxis and shaving with electric razor were protective factors for both types of infection, whereas the duration of the intervention and the classification of the intervention as "dirty" were shared risk factors. Conclusion:Our results suggest the importance of environmental and surface contamination control to prevent SSI.Contexte : La lutte contre les infections du site opératoire (ISO) passe entre autres par des études visant à clarifier la nature de nombreux facteurs essentiels de contrôle. Nous avons donc cherché à examiner le lien entre divers facteurs de risque, notamment de nature environnementale, et les ISO, dans une optique de prévention.

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“…Although not yet commercially available, this user-friendly, ceiling-mounted light source has been evaluated within clinical environments with successful results [57][58][59].…”

Section: Nm Violet-blue Lightmentioning

confidence: 99%

“…Studies carried out in an occupied ICU isolation room, demonstrated evidence of the efficacy of the EDS, with a significant 60 to 70% reductions in both the total viable bacterial counts (TVC) and the staphylococcal bioburden around the environment, over and above the reductions achieved by cleaning alone, with the EDS achieving an almost uniform reduction in bioburden across the room surfaces [59]. Studies conducted in Burns Unit isolation rooms also demonstrated the efficacy of the system, with 56-86% reductions in staphylococcal contamination on surfaces around isolation rooms occupied by MRSA positive patients, and up to 90% reduction of contamination after 24h use in an unoccupied room [57]. Further confirmation of the effectiveness of the system was obtained by switching off the EDS and observing that bacterial contamination levels increased and returned to around pre-treatment levels when operation of the system ceased.…”

Section: Nm Violet-blue Lightmentioning

confidence: 99%

Decontamination of the Hospital Environment: New Technologies for Infection Control

Maclean

McKenzie

Moorhead

et al. 2015

Curr Treat Options Infect Dis

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Environmental decontamination of a hospital isolation room using high-intensity narrow-spectrum light

Cited by 97 publications

References 15 publications

Controlling Hospital-Acquired Infection: Focus on the Role of the Environment and New Technologies for Decontamination

Controlling Hospital-Acquired Infection: Focus on the Role of the Environment and New Technologies for Decontamination

Analyzing the risk factors influencing surgical site infections: the site of environmental factors

Decontamination of the Hospital Environment: New Technologies for Infection Control

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