Environmental Cleaning and Decontamination to Prevent Clostridioides difficile Infection in Health Care Settings: A Systematic Review

Organizational and infrastructural risk factors for health care-associated Clostridioides difficile infections or methicillin-resistant Staphylococcus aureus in hospitals

BACKGROUND

This study explores the infrastructural and organizational risk factors for health care-associated (HCA) Clostridioides difficile infections (CDIs) and methicillin-resistant Staphylococcus aureus (MRSA) in hospitals.

METHODS

This is a retrospective observational study involving all eligible inpatient units from 12 hospitals in British Columbia, Canada, from April 1, 2020 to September 16, 2021. The outcomes were the average HCA CDI or MRSA rates. Covariates included, but were not limited to, infection control factors (eg, hand hygiene rate), infrastructural factors (eg, unit age), and organizational factors (eg, hallway bed utilization). Multivariable regression was performed to identify statistically significant risk factors.

RESULTS

Older units were associated with higher HCA CDI rates (adjusted relative risk [aRR]: 0.012; 95% confidence interval (CI) [0.004, 0.020]). Higher HCA MRSA rates were associated with decreased hand hygiene rate (aRR: -0.035; 95% CI [-0.063, -0.008]), higher MRSA bioburden (aRR: 9.008; 95% CI [5.586, 12.429]), increased utilization of hallway beds (aRR: 0.680; 95% CI [0.094, 1.267]), increased nursing overtime rate (aRR: 5.018; 95% CI [1.210, 8.826]), and not keeping the clean supply room door closed (aRR: -0.283; 95% CI [-0.536, -0.03]).

CONCLUSIONS

The study confirmed the multifaceted nature of infection prevention and emphasized the importance of interdepartmental collaboration to improve patient safety.

Evaluation of daily environmental cleaning and disinfection practices in veterans affairs acute and long-term care facilities: A mixed methods study

OBJECTIVES

To describe daily environmental cleaning and disinfection practices and their associations with cleaning rates while exploring contextual factors experienced by healthcare workers involved in the cleaning process.

METHODS

A convergent mixed methods approach using quantitative observations (ie, direct observation of environmental service staff performing environmental cleaning using a standardized observation form) and qualitative interviews (ie, semistructured interviews of key healthcare workers) across 3 Veterans Affairs acute and long-term care facilities.

RESULTS

Between December 2018 and May 2019 a total of sixty-two room observations (N = 3602 surfaces) were conducted. The average observed surface cleaning rate during daily cleaning in patient rooms was 33.6% for all environmental surfaces and 60.0% for high-touch surfaces (HTS). Higher cleaning rates were observed with bathroom surfaces (Odds Ratio OR = 3.23), HTSs (OR = 1.57), and reusable medical equipment (RME) (OR = 1.40). Lower cleaning rates were observed when cleaning semiprivate rooms (OR = 0.71) and rooms in AC (OR = 0.56). In analysis stratified by patient presence (ie, present, or absent) in the room during cleaning, patient absence was associated with higher cleaning rates for HTSs (OR = 1.71). In addition, the odds that bathroom surfaces being cleaned more frequently than bedroom surfaces decreased (OR = 1.97) as well as the odds that private rooms being cleaned more frequently than semi-private rooms also decreased (OR = 0.26; 0.07-0.93). Between January and June 2019 eighteen qualitative interviews were conducted and found key themes (ie, patient presence and semiprivate rooms) as potential barriers to cleaning; this supports findings from the quantitative analysis.

CONCLUSION

Overall observed rates of daily cleaning of environmental surfaces in both acute and long-term care was low. Standardized environmental cleaning practices to address known barriers, specifically cleaning practices when patients are present in rooms and semi-private rooms are needed to achieve improvements in cleaning rates.

Inactivation of Spores and Vegetative Forms of Clostridioides difficile by Chemical Biocides: Mechanisms of Biocidal Activity, Methods of Evaluation, and Environmental Aspects

Clostridioides difficile infections (CDIs) are the most common cause of acquired diseases in hospitalized patients. Effective surface disinfection, focused on the inactivation of the spores of this pathogen, is a decisive factor in reducing the number of nosocomial cases of CDI infections. An efficient disinfection procedure is the result of both the properties of the biocidal agent used and the technology of its implementation as well as a reliable, experimental methodology for assessing the activity of the biocidal active substance based on laboratory models that adequately represent real clinical conditions. This study reviews the state of knowledge regarding the properties and biochemical basis of the action mechanisms of sporicidal substances, with emphasis on chlorine dioxide (ClO₂). Among the analyzed biocides, in addition to ClO₂, active chlorine, hydrogen peroxide, peracetic acid, and glutaraldehyde were characterized. Due to the relatively high sporicidal effectiveness and effective control of bacterial biofilm, as well as safety in a health and environmental context, the use of ClO₂ is an attractive alternative in the control of nosocomial infections of CD etiology. In terms of the methods of assessing the biocidal effectiveness, suspension and carrier standards are discussed.

Comparing visual inspection and performance observation for evaluation of hospital cleanliness

BACKGROUND

Environmental cleaning is an effective measure to prevent infections. However, performance observation has been rarely delineated. This study aimed to compare correlations among visual inspection, performance observation, and effectiveness by using adenosine triphosphate bioluminescence (ATP bioluminescence) as a comparator to find out which method is better to assess hospital cleanliness.

METHODS

This prospective study was conducted at a medical center from April 2019 to October 2020. Seven high-touch surfaces were evaluated during and after terminal cleaning by performance observation, visual inspection, and ATP bioluminescence.

RESULTS

The scores by performance observation, visual inspection, and ATP were 55.4%, 87.5%, and 26.6% after cleaning. The correlations between performance observation and visual inspection and between performance observation and ATP interpretation were weak positive (φ = 0.300, 0.324, P < .001). No correlation was between the visual inspection and ATP interpretation (φ=0.137). The median of ATP readings was lower in "compliant" group by performance observation and "clean" group by visual inspection than "not compliant" group and "not clean" group (P < .001).

CONCLUSIONS

Performance observation combined with ATP would be preferred to include to audit cleanliness on high-risk surfaces. Visual inspection would be a rapid and time-saving assessment tool on low-risk surfaces.

The High Stakes of Outsourcing in Health Care

Outsourcing in health care has become increasingly common as health system administrators seek to enhance profitability and efficiency while maintaining clinical excellence. When clinical services are outsourced, however, the outsourcing organization relinquishes control over its most important service value: high-quality patient care. Farming out work to an external service provider can have many unintended results, including inconsistencies in standards of care; harmful medical errors; declines in patient and employee satisfaction; and damage to clinicians' morale and income, and to the health organization's culture, reputation, and long-term financial performance. Research on outsourcing in the areas of emergency medicine, radiology, laboratory services, and environmental services provides concerning evidence of potentially large downsides when outsourcing is driven by short-term cost concerns or is planned without diligently considering all of the ramifications of not keeping key clinical and nonclinical services in-house. To better equip health system leaders for decision-making about outsourcing, we examine this body of literature, identify common pitfalls of outsourcing in specific clinical and nonclinical health services and scenarios, explore alternatives to outsourcing, and consider how outsourcing (when necessary) can be done in a strategic manner that does not compromise the values of the organization and its commitment to patients.