A predictive score for the result of carbapenem-resistant Enterobacterales and vancomycin-resistant enterococci screening

BACKGROUND

The duration of extensively drug-resistant bacteria (XDR) carriage depends on several factors for which the information can be difficult to recover.

AIM

To determine whether past screening and clinical results of patients can predict the results of subsequent screening.

METHODS

In total, 256 patients were retrospectively included from 10 healthcare centres in France from January 2014 to January 2022. We created a predictive clearance score, ranging from -5 to +7, that included the number of XDR species and the type of resistance detected in the sample, as well as the time from the last positive sample, the number of previous consecutive negative samples, and obtaining at least one negative PCR result in the collection. This score could be used for the upcoming rectal screening of a patient carrying an XDR as soon as the last screening sample was negative.

FINDINGS

The negative predictive value was >99% for score ≤0. The median time to achieve XDR clearance was significantly shorter for a score of 0 (443 days (259-705)) than that based on previously published criteria.

CONCLUSION

This predictive score shows high performance for the assessment of XDR clearance. Relative to previous guidelines, it could help to lift specific infection prevention and control measures earlier. Nevertheless, the decision should be made according to other factors, such as antimicrobial use and adherence to hand hygiene.

Are Contact Precautions "Essential" for the Prevention of Healthcare-associated Methicillin-Resistant Staphylococcus aureus?

The recently updated Society for Healthcare Epidemiology of America, the Infectious Diseases Society of America, and the Association of Professionals in Infection Control practice recommendations for methicillin-resistant Staphylococcus aureus (MRSA) prevention in acute care facilities list contact precautions (CPs) for patients known to be infected or colonized with MRSA as an "essential practice," meaning that it should be adopted in all acute care facilities. We argue that existing evidence on benefits and harms associated with CP do not justify this recommendation. There are no controlled trials that support broad use of CP for MRSA prevention. Data from hospitals that have discontinued CP for MRSA have found no impact on MRSA acquisition or infection. The burden and harms of CP remain concerning, including the environmental impact of increased gown and glove use. We suggest that CP be included among other "additional approaches" to MRSA prevention that can be implemented under specific circumstances (eg outbreaks, evidence of ongoing transmission despite application of essential practices).

Direct Gloving vs Hand Hygiene Before Donning Gloves in Adherence to Hospital Infection Control Practices: A Cluster Randomized Clinical Trial

Importance

Current guidelines require hand hygiene before donning nonsterile gloves, but evidence to support this requirement is lacking.

Objective

To evaluate the effectiveness of a direct-gloving policy on adherence to infection prevention practices in a hospital setting.

Design, Setting, and Participants

This mixed-method, multicenter, cluster randomized clinical trial was conducted at 4 academic centers in Baltimore, Maryland, or Iowa City, Iowa, from January 1, 2016, to November 30, 2017. Data analysis was completed April 25, 2019. Participants were 3790 health care personnel (HCP) across 13 hospital units.

Intervention

Hospital units were randomly assigned to direct gloving, with hand hygiene not required before donning gloves (intervention), or to usual care (hand hygiene before donning nonsterile gloves).

Main Outcomes and Measures

The primary outcome was adherence to the expected practice at room entry and exit. A random sample of HCPs' gloved hands were imprinted on agar plates at entry to contact precautions rooms. The intention-to-treat approach was followed, and all analyses were conducted at the level of the participating unit. Primary and secondary outcomes between treatment groups were assessed using generalized estimating equations with an unstructured working correlation matrix to adjust for clustering; multivariate analysis using generalized estimating equations was conducted to adjust for covariates, including baseline adherence.

Results

In total, 13 hospital units participated in the trial, and 3790 HCP were observed. Adherence to expected practice was greater in the 6 units with the direct-gloving intervention than in the 7 usual care units (1297 of 1491 [87%] vs 954 of 2299 [41%]; P < .001) even when controlling for baseline hand hygiene rates, unit type, and universal gloving policies (risk ratio [RR], 1.76; 95% CI, 1.58-1.97). Glove use on entry to contact precautions rooms was also higher in the direct-gloving units (1297 of 1491 [87%] vs 1530 of 2299 [67%]; P = .008. The intervention had no effect on hand hygiene adherence measured at entry to non-contact precautions rooms (951 of 1315 [72%] for usual care vs 1111 of 1688 [66%] for direct gloving; RR, 1.00 [95% CI, 0.91-1.10]) or at room exit (1587 of 1897 [84%] for usual care vs 1525 of 1785 [85%] for direct gloving; RR, 0.98 [95% CI, 0.91-1.07]). The intervention was associated with increased total bacteria colony counts (adjusted incidence RR, 7.13; 95% CI, 3.95-12.85) and greater detection of pathogenic bacteria (adjusted incidence RR, 10.18; 95% CI, 2.13-44.94) on gloves in the emergency department and reduced colony counts in pediatrics units (adjusted incidence RR, 0.34; 95% CI, 0.19-0.63), with no change in either total colony count (RR, 0.87 [95% CI, 0.60 to 1.25] for adult intensive care unit; RR, 0.59 [95% CI, 0.31-1.10] for hemodialysis unit) or presence of pathogenic bacteria (RR, 0.93 [95% CI, 0.40-2.14] for adult intensive care unit; RR, 0.55 [95% CI, 0.15-2.04] for hemodialysis unit) in the other units.

Conclusions and Relevance

Current guidelines require hand hygiene before donning nonsterile gloves, but evidence to support this requirement is lacking. The findings from this cluster randomized clinical trial indicate that a direct-gloving strategy without prior hand hygiene should be considered by health care facilities.

Trial Registration

ClinicalTrials.gov Identifier: NCT03119389.

Healthcare worker protection against mpox contamination: position paper of the French Society for Hospital Hygiene

In the context of the recent re-emergence of mpox worldwide, the French Society for Hospital Hygiene (SF2H) performed a literature review of the transmission paths and proposed specific recommendations for healthcare workers (HCWs) caring for patients with suspected or confirmed MPXV. In developed countries, the risk of contamination among HCWs in healthcare facilities seemed to be very low, limited to contamination through needle stick injuries. Two additional contamination cases were reported and not fully explained. Beyond healthcare settings, the analysis of the literature highlighted (i) a main contamination route during sexual intercourse, mainly among men who have sex with men, and (ii) a very low secondary attack rate in other contexts, such as schools or jails. Numerous studies have reported molecular or virus identification on surfaces or in the air surrounding patients, without any association with the low secondary case incidence; moreover, the minimum infectious dose through air or mucosal exposure is still unknown. Owing to the lack of evidence of MPXV respiratory transmission in the healthcare setting, the SF2H recommends the implementation of standard and contact precautions combined with medical/surgical mask use. Owing to the lack of evidence of transcutaneous contamination, the SF2H recommends the use of gloves only if contact with cutaneous lesions or mucous membranes occurs. Regarding the risk of contamination from the environment in healthcare facilities, additional studies must be conducted to investigate this.

Quantification of time delay between screening and subsequent initiation of contact isolation for carriers of extended-spectrum beta-lactamase (ESBL)-producing Enterobacterales: A post hoc subgroup analysis of the R-GNOSIS WP5 Trial

OBJECTIVES

The aim of this study was to quantify the time delay between screening and initiation of contact isolation for carriers of extended-spectrum beta-lactamase (ESBL)-producing Enterobacterales (ESBL-E).

METHODS

This study was a secondary analysis of contact isolation periods in a cluster-randomized controlled trial that compared 2 strategies to control ESBL-E (trial no. ISRCTN57648070). Patients admitted to 20 non-ICU wards in Germany, the Netherlands, Spain, and Switzerland were screened for ESBL-E carriage on admission, weekly thereafter, and on discharge. Data collection included the day of sampling, the day the wards were notified of the result, and subsequent ESBL-E isolation days.

RESULTS

Between January 2014 and August 2016, 19,122 patients, with a length of stay ≥2 days were included. At least 1 culture was collected for 16,091 patients (84%), with a median duration between the admission day and the day of first sample collection of 2 days (interquartile range [IQR], 1-3). Moreover, 854 (41%) of all 2,078 ESBL-E carriers remained without isolation during their hospital stay. In total, 6,040 ESBL-E days (32% of all ESBL-E days) accrued for patients who were not isolated. Of 2,078 ESBL-E-carriers, 1,478 ESBL-E carriers (71%) had no previous history of ESBL-E carriage. Also, 697 (34%) were placed in contact isolation with a delay of 4 days (IQR, 2-5), accounting for 2,723 nonisolation days (15% of ESBL-E days).

CONCLUSIONS

Even with extensive surveillance screening, almost one-third of all ESBL-E days were nonisolation days. Limitations in routine culture-based ESBL-E detection impeded timely and exhaustive implementation of targeted contact isolation.

Increased evidence for no benefit of contact precautions in preventing extended-spectrum β-lactamases-producing Enterobacteriaceae: Systematic scoping review

INTRODUCTION

Extended-spectrum β-lactamases-producing Enterobacteriaceae (ESBL-E) is a critical antimicrobial resistance pathogen, to which we need to pay the greatest attention. This study was aimed at uncovering the present evidence for the preventive effectiveness of contact precautions for patients colonized or infected with ESBL-E.

METHODS

According to the Preferred Reporting Items for Systemic Reviews and Meta-analyses (PRISMA) Extension for Scoping Reviews, we searched MEDLINE for articles with relevant keywords from the beginning of 2010 to October 18, 2022.

RESULTS

Of the 355 articles found, 9, including 8 observational studies and 1 randomized controlled trial, were selected. Safety of discontinuing contact precautions was evaluated mainly in acute-care and long-term care hospitals. Consistently, all authors concluded that contact precautions can be safely discontinued in patients colonized or infected with ESBL-E.

CONCLUSION

The clinical impact of discontinuing contact precautions for patients with ESBL-E is minimal and can be safely withdrawn at acute, noncritical, adult care wards. Relevant data from pediatric and geriatric wards, as well as intensive care units, were insufficient and should be investigated in future research.

Hand hygiene compliance by direct observation in physicians and nurses: a systematic review and meta-analysis

BACKGROUND

Direct observation of hand hygiene compliance is the "gold standard" despite limitations and potential for bias. Previous literature highlights poorer hand hygiene compliance amongst physicians than nurses and suggests that covert monitoring may give better compliance estimates than overt monitoring.

AIM

This review aimed to explore differences in compliance between physicians and nurses further, and to analyse if compliance estimates differed when observations were covert rather than overt.

METHODS

A systematic search of databases PubMed, EMBASE, CENTRAL and CINAHL was performed. Experimental or observational studies in hospital settings in high-income countries published in English from 2010 onwards were included if estimates for both physicians and nurses using direct observation were reported. The search yielded 4814 studies, of which 105 were included.

FINDINGS

The weighted pooled compliance rate for nurses was 52% (95% CI 47% to 57%) and for doctors was 45% (95% CI 40% to 49%). Heterogeneity was considerable (I²=99%). The majority of studies were at moderate or high risk of bias. Random-effects meta-analysis of low risk of bias studies suggests higher compliance for nurses than physicians for both overt (difference of 7%, 95% CI for the difference 0.8% to 13.5%, p=0.027) and covert (difference of 7%, 95% CI 3% to 11%, p=0.0002) observation. Considerable heterogeneity was found in all analyses.

CONCLUSION

Wide variability in compliance estimates and differences in the methodological quality of hand hygiene studies were identified. Further research with meta-regression should explore sources of heterogeneity and improve the conduct and reporting of hand hygiene studies.

Approaches to multidrug-resistant organism prevention and control in long-term care facilities for older people: a systematic review and meta-analysis

BACKGROUND

Despite clear evidence of benefits in acute-care hospitals, controversy over the effectiveness of IPC measures for MDROs is perceptible and evidence-based practice has not been established.

OBJECTIVE

To investigate the effects of IPC interventions on MDRO colonization and infections in LTCFs.

DATA SOURCES

Ovid MEDLINE, EMBASE, and CINAHL from inception to September 2020.

ELIGIBILITY CRITERIA

Original and peer-reviewed articles examining the post-intervention effects on MDRO colonization and infections in LTCFs.

INTERVENTIONS

(i) Horizontal interventions: administrative engagement, barrier precautions, education, environmental cleaning, hand hygiene, performance improvement, and source control; and (ii) vertical intervention: active surveillance plus decolonization.

STUDY APPRAISAL AND SYNTHESIS

We employed a random-effects meta-analysis to estimate the pooled risk ratios (pRRs) for methicillin-resistant Staphylococcus aureus (MRSA) colonization by intervention duration; and conducted subgroup analyses on different intervention components. Study quality was assessed using Cochrane risk of bias tools.

RESULTS

Of 3877 studies identified, 19 were eligible for inclusion (eight randomized controlled trials (RCTs)). Studies reported outcomes associated with MRSA (15 studies), vancomycin-resistant Enterococci (VRE) (four studies), Clostridium difficile (two studies), and Gram-negative bacteria (GNB) (two studies). Eleven studies were included in the meta-analysis. The pRRs were close to unity regardless of intervention duration (long: RR 0.81 [95% CI 0.60-1.10]; medium: RR 0.81 [95% CI 0.25-2.68]; short: RR 0.95 [95% CI 0.53-1.69]). Vertical interventions in studies with a small sample size showed significant reductions in MRSA colonization while horizontal interventions did not. All studies involving active administrative engagement reported reductions. The risk of bias was high in all but two studies.

CONCLUSIONS

Our meta-analysis did not show any beneficial effects from IPC interventions on MRSA reductions in LTCFs. Our findings highlight that the effectiveness of interventions in these facilities is likely conditional on resource availability-particularly decolonization and barrier precautions, due to their potential adverse events and uncertain effectiveness. Hence, administrative engagement is crucial for all effective IPC programmes. LTCFs should consider a pragmatic approach to reinforce standard precautions as routine practice and implement barrier precautions and decolonization to outbreak responses only.

"The Invisible Staff": A Qualitative Analysis of Environmental Service Workers' Perceptions of the VA Clostridium difficile Prevention Bundle Using a Human Factors Engineering Approach

OBJECTIVES

Using a novel human factors engineering approach, the Systems Engineering Initiative for Patient Safety model, we evaluated environmental service workers' (ESWs) perceptions of barriers and facilitators influencing adherence to the nationally mandated Department of Veterans Affairs Clostridium difficile infection (CDI) prevention bundle.

METHODS

A focus group of ESWs was conducted. Qualitative analysis was performed employing a visual matrix display to identify barrier/facilitator themes related to Department of Veterans Affairs CDI bundle adherence using the Systems Engineering Initiative for Patient Safety work system as a framework.

RESULTS

Environmental service workers reported adequate cleaning supplies/equipment and displayed excellent knowledge of CDI hand hygiene requirements. Environmental service workers described current supervisory practices as providing an acceptable amount of time to clean CDI rooms, although other healthcare workers often pressured ESWs to clean rooms more quickly. Environmental service workers reported significant concern for CDI patients' family members as well as suggesting uncertainty regarding the need for family members to follow infection prevention practices. Small and cluttered patient rooms made cleaning tasks more difficult, and ESW cleaning tasks were often interrupted by other healthcare workers. Environmental service workers did not feel comfortable asking physicians for more time to finish cleaning a room nor did ESWs feel comfortable pointing out lapses in physician hand hygiene.

CONCLUSIONS

Multiple work system components serve as barriers to and facilitators of ESW adherence to the nationally mandated Department of Veterans Affairs CDI bundle. Environmental service workers may represent an underappreciated resource for hospital infection prevention, and further efforts should be made to engage ESWs as members of the health care team.

Multidrug-Resistant Gram-Negative Bacteria: Infection Prevention and Control Update

Multidrug-resistant gram-negative bacteria (MDR-GNB) pose one of the greatest challenges to health care today because of their propensity for human-to-human transmission and lack of therapeutic options. Containing the spread of MDR-GNB is challenging, and the application of multifaceted infection control bundles during an evolving outbreak makes it difficult to measure the relative impact of each measure. This article will review the utility of various infection control measures in containing the spread of various MDR-GNB and will provide the supporting evidence for these interventions.

Development and Validation of a Tool for the Prediction of Vancomycin-Resistant Enterococci Colonization Persistence-the PREVENT Score

Vancomycin-resistant enterococci (VRE) are nosocomial pathogens with increasing prevalence worldwide. Extensive hygiene measures have been established to prevent infection transmission in hospitals. Here, we developed a predictive score system (the predictive vancomycin-resistant enterococci [PREVENT] score) to identify the clearance or persistence in patients with a history of VRE carrier status at readmission. Over a cumulative 3-year period, patients with a positive VRE carrier status were included. The study population was recruited in two successive time periods and separated into training data for predictive score development and validation data for evaluation of the predictive power. The risk factors for persistent VRE colonization were analyzed in a univariable analysis before development of a logistic regression model based on the potential risk factors. The score points were determined proportionally to the beta coefficients of the logistic regression model. The data from 448 (79%) patients were used as the training data, and those from 119 (21%) as the validation data. Multivariable analysis revealed the following variables as independent risk factors: age of ≥60 years, hemato-oncological disease, cumulative antibiotic treatment for >4 weeks, and a VRE infection. The resulting logistic regression model exhibited an acceptable area under the curve (AUC) of 0.81 (95% confidence interval [CI], 0.72 to 0.91). The predictive score system had a sensitivity of 82% (95% CI, 65 to 93%) and a specificity of 77% (95% CI, 66 to 85%). The developed predictive score system is a useful tool to assess the VRE carrier status of patients with a history of VRE colonization. On the basis of this risk assessment, more focused and cost-effective infection control measures can be implemented. IMPORTANCE Given the increasing relevance of VRE as nosocomial pathogens worldwide, infection prevention and control measures, including patient isolation and contact precautions, are indispensable to avoid their spread in the hospital setting. In this study, we developed and validated the PREVENT score, a tool for rapid risk assessment of VRE persistence in patients with a history of previous VRE colonization. The score is designed to be easily performed, employing clinical information available in a regular admission setting and immediately providing information to inform the decision of whether to adopt patient isolation and contact precautions during the hospital stay. After validation, the score was shown to accurately identify patients with persistent VRE colonization upon admission, representing a suitable option as (i) a complementary method yielding preliminary results significantly more quickly than culture-based VRE detection techniques and (ii) an alternative strategy for VRE detection in settings in which microbiological VRE screening is not routinely performed due to limited resources.

Does high adherence to contact precautions lead to low in-hospital transmission of multi-drug-resistant micro-organisms in the endemic setting?

BACKGROUND

Conflicting results have been published on the impact of contact precautions (CPs) on reduction of transmission of multi-drug-resistant micro-organisms (MDROs) in the endemic setting. Ambiguous definitions coupled with low adherence partly explain these differences.

AIM

We prospectively monitored the level of adherence to CPs and aimed to relate it to in-hospital transmission of MDROs.

METHODS

Between January 2016 and March 2018, all patients under CPs underwent continuous monitoring of adherence to CPs by routine on-site visits on days 0, 3 and 7 after initiating CPs using a standardized checklist. The protocol included 10 interventions that were routinely checked such as CP sign at the door as well as wearing of gowns and gloves upon entry to the patient room. Patients requiring CPs were defined as colonized or infected with MDROs (meticillin-resistant Staphylococcus aureus (MRSA), non-Escherichia coli extended-spectrum beta lactamase (ESBL) Enterobacterales, vancomycin-resistant enterococci (VRE) and carbapenem-resistant Gram-negative micro-organisms (CRGN)) as well as patients infected with respiratory viruses, norovirus, scabies and hypervirulent strains of Clostridioides difficile.

FINDINGS

Overall, data from 13,756 CP records from 1378 visits of 812 patients were analysed. Adherence varied between 93% and 100% for each intervention, except for "separate space for contaminated material" with an adherence of 5.3-6.1%. The incidence of in-hospital transmission during the study period was extremely low for MRSA, VRE, non-E.coli ESBL Enterobacterales and CRGN with 0.00-0.064 cases/1000 patient days.

CONCLUSION

High adherence coupled with continuous monitoring of CPs correlated with a very low in-hospital transmission rate. These results indicate that CPs are highly effective if routine monitoring of adherence is implemented.

The impact of workload on hand hygiene compliance: Is 100% compliance achievable?

Hand hygiene compliance decreased significantly when opportunities exceeded 30 per hour. At higher workloads, the number of healthcare worker types involved and the proportion of hand hygiene opportunities for which physicians and other healthcare workers were responsible increased. Thus, care complexity and risk to patients may both increase with workload.

How to Choose Target Facilities in a Region to Implement Carbapenem-resistant Enterobacteriaceae Control Measures

BACKGROUND

When trying to control regional spread of antibiotic-resistant pathogens such as carbapenem-resistant Enterobacteriaceae (CRE), decision makers must choose the highest-yield facilities to target for interventions. The question is, with limited resources, how best to choose these facilities.

METHODS

Using our Regional Healthcare Ecosystem Analyst-generated agent-based model of all Chicago metropolitan area inpatient facilities, we simulated the spread of CRE and different ways of choosing facilities to apply a prevention bundle (screening, chlorhexidine gluconate bathing, hand hygiene, geographic separation, and patient registry) to a resource-limited 1686 inpatient beds.

RESULTS

Randomly selecting facilities did not impact prevalence, but averted 620 new carriers and 175 infections, saving $6.3 million in total costs compared to no intervention. Selecting facilities by type (eg, long-term acute care hospitals) yielded a 16.1% relative prevalence decrease, preventing 1960 cases and 558 infections, saving $62.4 million more than random selection. Choosing the largest facilities was better than random selection, but not better than by type. Selecting by considering connections to other facilities (ie, highest volume of discharge patients) yielded a 9.5% relative prevalence decrease, preventing 1580 cases and 470 infections, and saving $51.6 million more than random selection. Selecting facilities using a combination of these metrics yielded the greatest reduction (19.0% relative prevalence decrease, preventing 1840 cases and 554 infections, saving $59.6 million compared with random selection).

CONCLUSIONS

While choosing target facilities based on single metrics (eg, most inpatient beds, most connections to other facilities) achieved better control than randomly choosing facilities, more effective targeting occurred when considering how these and other factors (eg, patient length of stay, care for higher-risk patients) interacted as a system.

Clinical characteristics and risk factors for the isolation of multi-drug-resistant Gram-negative bacteria from critically ill patients with COVID-19

Background

We investigated the clinical characteristics and risk factors for the isolation of multi-drug-resistant (MDR) Gram-negative bacteria (GNB) from critically ill COVID-19 patients.

Methods

We retrospectively matched (1:2) critical COVID-19 patients with one or more MDR GNB from any clinical specimen (cases), with those with no MDR GNB isolates (controls).

Results

Seventy-eight cases were identified (4.5 per 1000 intensive care unit (ICU) days, 95% confidence interval (CI) 3.6–5.7). Of 98 MDR GNB isolates, the most frequent species were Stenotrophomonas maltophilia (24, 24.5%), and Klebsiella pneumoniae (23, 23.5%). Two (8.7%) K. pneumoniae, and six (85.7%) Pseudomonas aeruginosa isolates were carbapenem resistant. A total of 24 (24.5%) isolates were not considered to be associated with active infection. Those with active infection received appropriate antimicrobial agents within a median of one day. The case group had significantly longer median central venous line days, mechanical ventilation days, and hospital length of stay (P<0.001 for each). All-cause mortality at 28 days was not significantly different between the two groups (P=0.19). Mechanical ventilation days (adjusted odds ratio 1.062, 95% CI 1.012–1.114; P=0.015), but not receipt of corticosteroids or tocilizumab, was independently associated with the isolation of MDR GNB. There was no association between MDR GNB and 28-day all-cause mortality (adjusted odds ratio 2.426, 95% CI 0.833–7.069; P= 0.104).

Conclusion

In critically ill COVID-19 patients, prevention of MDR GNB colonization and infections requires minimizing the use of invasive devices, and to remove them as soon as their presence is no longer necessary.

How Long-Term Acute Care Hospitals Can Play an Important Role in Controlling Carbapenem-Resistant Enterobacteriaceae in a Region: A Simulation Modeling Study

Typically, long-term acute care hospitals (LTACHs) have less experience in and incentives to implementing aggressive infection control for drug-resistant organisms such as carbapenem-resistant Enterobacteriaceae (CRE) than acute care hospitals. Decision makers need to understand how implementing control measures in LTACHs can impact CRE spread regionwide. Using our Chicago metropolitan region agent-based model to simulate CRE spread and control, we estimated that a prevention bundle in only LTACHs decreased prevalence by a relative 4.6%-17.1%, averted 1,090-2,795 new carriers, 273-722 infections and 37-87 deaths over 3 years and saved $30.5-$69.1 million, compared with no CRE control measures. When LTACHs and intensive care units intervened, prevalence decreased by a relative 21.2%. Adding LTACHs averted an additional 1,995 carriers, 513 infections, and 62 deaths, and saved $47.6 million beyond implementation in intensive care units alone. Thus, LTACHs may be more important than other acute care settings for controlling CRE, and regional efforts to control drug-resistant organisms should start with LTACHs as a centerpiece.

Association of Visitor Contact Precautions With Estimated Hospital-Onset Clostridioides difficile Infection Rates in Acute Care Hospitals

IMPORTANCE

Visitor contact precautions (VCPs) are commonly used to reduce the transmission of Clostridioides difficile at health care institutions. Implementing VCPs requires considerable personnel and personal protective equipment resources. However, it is unknown whether VCPs are associated with reduced hospital-onset C difficile infection (HO-CDI) rates.

OBJECTIVE

To estimate the association between VCPs and HO-CDI rates using simulation modeling.

DESIGN, SETTING, AND PARTICIPANTS

This simulation study, conducted between July 27, 2020, and August 11, 2020, used an established agent-based simulation model of C difficile transmission in a 200-bed acute care adult hospital to estimate the association between VCPs and HO-CDI while varying assumptions about factors such as patient susceptibility, behavior, and C difficile transmission. The model simulated hospital activity for 1 year among a homogeneous, simulated adult population.

INTERVENTIONS

No VCP use vs ideal use of VCPs under different hospital configurations.

MAIN OUTCOMES AND MEASURES

The rate of HO-CDI per 10 000 patient-days according to the Centers for Disease Control and Prevention's definition of HO-CDI.

RESULTS

With use of the simulation model, the baseline rate of HO-CDI was 7.94 10 000 patient-days (95% CI, 7.91-7.98 per 10 000 patient-days) with no VCP use compared with 7.97 per 10 000 patient-days (95% CI, 7.93-8.01 per 10 000 patient-days) with ideal VCP use. Visitor contact precautions were not associated with a reduction of more than 1% in HO-CDI rates in any of the tested scenarios and hospital settings. Independently increasing the hand-hygiene compliance of the average health care worker and environmental cleaning compliance by no more than 2% each was associated with greater HO-CDI reduction compared with all other scenarios, including VCPs.

CONCLUSIONS AND RELEVANCE

In this simulation study, the association between VCPs and HO-CDI was minimal, but improvements in health care worker hand hygiene and environmental cleaning were associated with greater reductions in estimated HO-CDI. Hospitals may achieve a higher rate of reduction for HO-CDI by focusing on making small improvements in compliance with interventions other than VCP.

Risk factors for transmission of carbapenem-resistant Enterobacterales to healthcare personnel gloves and gowns in the USA

BACKGROUND

Hospitals are sources for acquisition of carbapenem-resistant Entero-bacterales (CRE), and it is believed that the contamination of healthcare personnel (HCP) hands and clothing play a major role in patient-to-patient transmission of antibiotic-resistant bacteria.

AIM

The aim of this study was to determine which HCP types, HCP-patient interactions, and patient characteristics are associated with greater transmission of CRE to HCP gloves and gowns in the hospital.

METHODS

This was a prospective observational cohort study that enrolled patients with recent surveillance or clinical cultures positive for CRE at five hospitals in four states in the USA. HCP gloves and gown were cultured after patient care. Samples were also obtained from patients' stool, perianal area, and skin of the chest and arm to assess bacterial burden.

FINDINGS

Among 313 CRE-colonized patients and 3070 glove and gown cultures obtained after patient care, HCP gloves and gowns were found to be contaminated with CRE 7.9% and 4.3% of the time, respectively. Contamination of either gloves or gowns occurred in 10.0% of interactions. Contamination was highest (15.3%) among respiratory therapists (odds ratio: 3.79; 95% confidence interval: 1.61-8.94) and when any HCP touched the patient (1.52; 1.10-2.12). Associations were also found between CRE transmission to HCP gloves or gown and: being in the intensive care unit, having a positive clinical culture, and increasing bacterial burden on the patient.

CONCLUSION

CRE transmission to HCP gloves and gown occurred frequently. These findings may inform evidence-based policies about what situations and for which patients contact precautions are most important.

Prevention of Clostridium difficile Infection and Associated Diarrhea: An Unsolved Problem

For many years, it has been known that Clostridium difficile (CD) is the primary cause of health-care-associated infectious diarrhea, afflicting approximately 1% of hospitalized patients. CD may be simply carried or lead to a mild disease, but in a relevant number of patients, it can cause a very severe, potentially fatal, disease. In this narrative review, the present possibilities of CD infection (CDI) prevention will be discussed. Interventions usually recommended for infection control and prevention can be effective in reducing CDI incidence. However, in order to overcome limitations of these measures and reduce the risk of new CDI episodes, novel strategies have been developed. As most of the cases of CDI follow antibiotic use, attempts to rationalize antibiotic prescriptions have been implemented. Moreover, to reconstitute normal gut microbiota composition and suppress CD colonization in patients given antimicrobial drugs, administration of probiotics has been suggested. Finally, active and passive immunization has been studied. Vaccines containing inactivated CD toxins or components of CD spores have been studied. Passive immunization with monoclonal antibodies against CD toxins or the administration of hyperimmune whey derived from colostrum or breast milk from immunized cows has been tried. However, most advanced methods have significant limitations as they cannot prevent colonization and development of primary CDI. Only the availability of vaccines able to face these problems can allow a resolutive approach to the total burden due to this pathogen.

Multidrug-Resistant Organisms in Palliative Care: A Systematic Review

Background: Multidrug-resistant organisms (MDROs) are an important health care issue. Patients in Western societies often present an increased morbidity of chronic conditions accompanied by poor immune status and the use of devices. In particular, patients in palliative care (PC) are at greater risk of MDRO colonization, due to accompanying special devices and being hospitalized. Objective: To gain an overview of the literature regarding MDROs in PC. Design: Systematic review Data sources: On the 19th of October 2019 the databases " PubMed" and " CINAHL" were used to identify studies reporting on MDROs in PC; the search was updated on 16th of May 2020. Results: Seventeen out of 486 articles were included. Six represent qualitative data, 10 quantitative data, and one a mixed methods approach. Prevalence data range from 4.0% to 18%. MDRO colonization has a negative impact on patients and families. It leads to uncertainties and higher workload by staff members. Strategies for the management of MDROs in the field of PC are predominantly available for methicillin-resistant Staphylococcus aureus. Not even half of institutions utilize existing protocols. Recommendations for dealing with MDROs indicate required staff and time resources as well as information, communication, and specific knowledge. Conclusion: There is a great need for studies examining the prevalence of all MDROs in the PC setting. Additionally, not only patients but also a public enlightenment on MDROs should be provided to decrease knowledge gaps and therefore reduce transmission on MDROs.

Can a nasal and skin decolonization protocol safely replace contact precautions for MRSA-colonized patients?

Contact precautions (CP) are employed in United States hospitals in order to prevent transmission of pathogens via supplies, equipment, and health care worker hands. CP is required in many hospitals for both colonized and infected methicillin-resistant Staphylococcus aureus (MRSA) patients. The isolation of colonized patients often results in a high rate of CP, leading some hospitals to abandon CP for MRSA-colonized patients without adding any safety measure to address transmission risk. Understanding this risk, 7 network hospitals in a US health care system made the decision to replace CP for high-risk MRSA-colonized patients with targeted nasal and body decolonization, leading to significant cost savings and staff satisfaction without any increase in MRSA transmission.

Compliance to empirical contact precautions for multidrug-resistant microorganisms

Health care-associated infections impact patient morbidity and mortality, and institutions adopt evidence-based measures to prevent and control such infections. In this study, professionals were observed during patient care under empirical contact precautions. A total of 243 observations were performed in which 39.5% complied with all measures. The positivity rate of surveillance cultures was 38.36%, and adherence to the measures in patients with colonization was 43.1%.

Barrier Precautions in the Era of Multidrug Pathogens

Purpose of review

There is a continuing debate regarding contact precaution (CP) usage for endemic multidrug-resistant organisms (MDROs). In this review, we examine current recommendations for CP and highlight differences in CP use between endemic and non-endemic MDROs.

Recent findings

The discontinuation of CP had no effect on the incidence of methicillin-resistant Staphylococcus aureus and vancomycin-resistant Enterococci. The evidence regarding CP for extended-spectrum beta-lactamase producing Enterobacteriaceae is inconclusive, highlighting the need for more research to determine best infection control strategies. Carbapenem-resistant Enterobacteriaceae maintains a sporadic pattern in the USA, supporting current recommendations to use CP for colonized and infected patients. MDR Acinetobacter baumannii (MDR-AB) is extremely virulent and responsible for outbreaks in healthcare settings, emphasizing the need for CP use with MDR-AB infected patients. Candida auris (C. auris) is often misdiagnosed; it is resistant to UV light and quaternary ammonium low-level disinfection. Because little is known about the transmission of C. auris, significant caution and CP use are necessitated. There is little research on vancomycin-resistant S. aureus (VRSA) control strategies due to its rarity; thus, CP is strongly recommended.

Summary

Contact precautions are frequently part of a bundled infection control approach that involves meticulous hand hygiene, patient decolonization, chlorhexidine gluconate bathing, and reducing the use of invasive devices. Healthcare facilities should continue to utilize CP for non-endemic MDROs and the presence of endemic MDROs; however, CP may not add benefit to the current infection prevention bundle approach.

Going green: decreasing medical waste in a paediatric intensive care unit in the United States

The healthcare industry generates significant waste and carbon emissions that negatively impact the environment. Intensive care units (ICU) are a major contributor to the production of waste, due to patient complexity and needs requiring extensive equipment, cleaning practices and pre-emptive supplies. To quantify the extent of the problem, health care professionals collected all unused medical supplies destined to be discarded over three one-week periods in a paediatric intensive care unit, weighed the items, and created an inventory. This article argues for greener hospital standards and provides a specific example of a project framework to reduce disposable waste with the hope that others can embark on similar initiatives for a more ethical and sustainable future for hospitals. Healthcare facilities must not just meet short-sighted safety standards of the now. In order to be a virtuous organization, one must consider all implications of daily decisions, including disposable supplies and cleaning.

A qualitative study of factors affecting personal protective equipment use among health care personnel

BACKGROUND

Health care personnel (HCP) use of personal protective equipment (PPE) reduces infectious disease transmission. However, PPE compliance remains low. The objective of this study was to better understand how HCP perceptions factor into PPE decision making as well as how organizational processes and the environment impact behavior.

METHODS

This qualitative study used observation and focus groups at 2 medical centers. Data were analyzed using thematic analysis.

RESULTS

The decision to use PPE and to follow precaution practices was influenced by risk perception as well as organizational and environmental factors. Perceived risk, related to certain organisms and work tasks, was considered by HCP when deciding to use PPE. Organizational processes, such as policies that were not applied uniformly, and environmental factors, such as clean versus contaminated space, also played a role in HCP PPE use.

DISCUSSION

Because HCP seemed focused on organisms and work tasks, education on specific organisms and helping HCP think through their workflow may be more effective in conveying the importance of PPE in reducing transmission. Additionally, isolation practices should be compared across disciplines to ensure they complement, rather than contradict, one another. Assessment of the environment may help protect HCP and patients from infectious organisms.

CONCLUSION

Preventing the spread of infectious organisms should not depend solely on PPE use, but should also be recognized as an organizational responsibility.

Contact isolation versus standard precautions to decrease acquisition of extended-spectrum β-lactamase-producing Enterobacterales in non-critical care wards: a cluster-randomised crossover trial

BACKGROUND

The effectiveness of contact isolation for decreasing the spread of extended-spectrum β-lactamase-producing Enterobacterales (ESBL-E) has been questioned. The aim of this study was to establish the benefits of contact isolation over standard precautions for reducing the incidence density of ESBL-E colonisation and infection in adult medical and surgical wards with an active surveillance culture programme.

METHODS

We did a cluster-randomised crossover trial in adult wards in four European university hospitals. Medical, surgical, or combined medical-surgical wards without critical care were randomised to continue standard precautions alone or implement contact isolation alongside standard precautions for 12 months, followed by a 1 month washout period and 12 months of the alternate strategy. Randomisation was done via a computer-generated sequence, with a block size of two consecutive wards. Only laboratory technicians and data analysts were masked to allocation. Patients were screened for ESBL-E carriage within 3 days of admission, once a week thereafter, and on discharge. The primary outcome was the incidence density of ESBL-E, defined as the acquisition rate per 1000 patient-days at risk at the ward level and assessed in the per-protocol population, which included all patients screened at least twice with a length of stay of more than 1 week for each intervention period. No specific safety measures were assessed given the minimal risk of adverse events. The trial is registered, ISRCTN57648070.

FINDINGS

We enrolled 20 wards from four hospitals in Germany (eight wards), the Netherlands (four wards), Spain (four wards), and Switzerland (four wards). Between Jan 6, 2014, and Aug 31, 2016, 38 357 patients were admitted to these wards. Among 15 184 patients with a length of stay of more than 1 week, 11 368 patients (75%) were screened at least twice. The incidence density of ward-acquired ESBL-E was 6·0 events per 1000 patient-days at risk (95% CI 5·4-6·7) during periods of contact isolation and 6·1 (5·5-6·7) during periods of standard precautions (p=0·9710). Multivariable analysis adjusted for length of stay, percentage of patients screened, and prevalence in first screening cultures yielded an incidence rate ratio of 0·99 (95% CI 0·80-1·22; p=0·9177) for care under contact isolation compared with standard precautions.

INTERPRETATION

Contact isolation showed no benefit when added to standard precautions for controlling the spread of ESBL-E on non-critical care wards with extensive surveillance screening.

FUNDING

European Commission.

How Introducing a Registry With Automated Alerts for Carbapenem-resistant Enterobacteriaceae (CRE) May Help Control CRE Spread in a Region

BACKGROUND

Regions are considering the use of electronic registries to track patients who carry antibiotic-resistant bacteria, including carbapenem-resistant Enterobacteriaceae (CRE). Implementing such a registry can be challenging and requires time, effort, and resources; therefore, there is a need to better understand the potential impact.

METHODS

We developed an agent-based model of all inpatient healthcare facilities (90 acute care hospitals, 9 long-term acute care hospitals, 351 skilled nursing facilities, and 12 ventilator-capable skilled nursing facilities) in the Chicago metropolitan area, surrounding communities, and patient flow using our Regional Healthcare Ecosystem Analyst software platform. Scenarios explored the impact of a registry that tracked patients carrying CRE to help guide infection prevention and control.

RESULTS

When all Illinois facilities participated (n = 402), the registry reduced the number of new carriers by 11.7% and CRE prevalence by 7.6% over a 3-year period. When 75% of the largest Illinois facilities participated (n = 304), registry use resulted in a 11.6% relative reduction in new carriers (16.9% and 1.2% in participating and nonparticipating facilities, respectively) and 5.0% relative reduction in prevalence. When 50% participated (n = 201), there were 10.7% and 5.6% relative reductions in incident carriers and prevalence, respectively. When 25% participated (n = 101), there was a 9.1% relative reduction in incident carriers (20.4% and 1.6% in participating and nonparticipating facilities, respectively) and 2.8% relative reduction in prevalence.

CONCLUSIONS

Implementing an extensively drug-resistant organism registry reduced CRE spread, even when only 25% of the largest Illinois facilities participated due to patient sharing. Nonparticipating facilities garnered benefits, with reductions in new carriers.

Patient care experience with utilization of isolation precautions: systematic literature review and meta-analysis

BACKGROUND

Use of isolation precautions (IP) may represent a trade-off between reduced transmission of infectious pathogens and reduced patient satisfaction with their care.

OBJECTIVE

To perform a systematic literature review and meta-analysis to identify if and how IPs impact patients' care experiences.

DATA SOURCES

Medline, ClinicalTrials.gov, Cumulative Index to Nursing and Allied Health Literature (CINAHL), Embase, PsychInfo, HSRProj and Cochrane Library databases.

STUDY ELIGIBILITY CRITERIA

Interventional and observational studies published January 1990 to May 2019 were eligible for inclusion.

PARTICIPANTS

Patients admitted to an acute-care facility.

INTERVENTIONS

IPs versus no IPs.

METHODS

Six reviewers screened titles, abstracts and full text. Experience of care reported by patients using the Hospital Consumer Assessment of Healthcare Providers and Systems (HCAHPS) survey was assessed as the outcome for the meta-analysis. Pooled odds ratios were calculated using the random-effects model. Heterogeneity was assessed using the I² value.

RESULTS

After screening 7073 titles and abstracts, 15 independent studies were included in the review. Pooling of unadjusted estimates from the HCAHPS survey demonstrated that IP patients were less likely to give top scores on questions pertaining to respect, communication, receiving assistance and cleanliness compared to the no-IP patients. Patients under IP with longer length of stay appeared to have more negative experiences with the care received during their stay compared to no IP.

CONCLUSIONS

Patients under IP were more likely to be dissatisfied with several aspects of patient care compared to patients not under IP. It is crucial to educate patients and healthcare workers in order to balance successful implementation of IP and patient care experiences, particularly in healthcare settings where it may be beneficial.

Adherence to personal protective equipment use among nurses in Japanese tertiary care hospitals: what determines variability?

BACKGROUND

Though nurses have frequent contact with patients, their personal protective equipment (PPE) compliance rate is low, which poses a significant challenge in infection control.

AIM

To investigate the relative influence of specific factors on PPE compliance.

METHODS

A sequential two-stage mixed-methods design was applied. In a qualitative study, semi-structured interviews were conducted from May to July 2018. In a quantitative study, a nationwide, cross-sectional survey was conducted from January to March 2019, in which a questionnaire was mailed to 735 nurses in 28 tertiary care hospitals in Japan.

FINDINGS

In the quantitative study, 435 (59.2%) analysable responses were obtained. In the linear regression analysis, the lack of the knowledge that 'standard precaution was the fundamental infection countermeasure applied when patients had signs of infections, and these countermeasures could be terminated if there was no infection found' was significantly associated with decreased PPE adherence, whereas an antimicrobial-resistant bacteria outbreak or a ward shutdown due to an outbreak and the belief 'I must never be the cause of spreading infection' were significantly associated with increased PPE adherence. The β of standard coefficients and t-values of the items were -0.344, -7.784, 0.090, 2.089, 0.088, 2.018, respectively.

CONCLUSION

This survey systematically identified nursing-associated factors that contribute to PPE compliance. As a practical approach to ensure positive outcomes, we suggest educating nurses by providing adequate knowledge on appropriate PPE use and sharing outbreak or ward shutdown experiences.

Emergence of colistin and carbapenem-resistant Acinetobacter calcoaceticus-Acinetobacter baumannii (CCR-Acb) complex in a neurological intensive care unit followed by successful control of the outbreak

BACKGROUND

Colistin and carbapenem-resistant Acinetobacter calcoaceticus- Acinetobacter baumannii complex (CCR-Acb complex) was isolated from two consecutive patients in the neurological intensive care unit (NICU). An urgent reaction to this desperate situation was required.

PATIENTS AND METHODS

Screening cultures were taken from the other patients sharing the NICU with index patients and repeated periodically. NICU was closed for new admissions. Infection control precautions (ICP) such as hand hygiene, cohorting patients colonized with CCR-Acb complex, cohorting the staff caring for these patients, daily bathing with chlorhexidine gluconate impregnated clothes, using gowns when contacting with patients and patient care area, and sodium hypochlorite tablets for environmental cleaning were enforced.

RESULTS

Screening cultures revealed carbapenem-resistant Acb complex in 12 out of 32 patients and 8 of them were colonized with CCR-Acb complex. NICU was opened for new admissions one month later. No further new cases with CCR-Acb complex were detected by screening cultures after 6 weeks with enforcement of ICP. Moreover, the rate of nosocomial infections caused by other multi-drug resistant Gram-negative bacilli (MDR-GNB) decreased significantly when rates before and after closing the NICU were compared.

CONCLUSION

ICP were effective not only to limit the spread of CCR-Acb complex but also decreased the incidence of other MDR-GNB infections when applied adequately.

Application of an objective structured clinical examination to evaluate and monitor intern's proficiency of hand hygiene and personal protective equipment use in the United States

PURPOSE

To determine if an objective structured clinical examination (OSCE) could be used to evaluate and monitor hand hygiene and personal protective equipment (PPE) proficiency for medical interns in the United States.

METHODS

Interns in July 2015 (N=123, Cohort 1) without OSCE-based contact precaution evaluation and teaching were evaluated early 2016 by OSCE for hand hygiene and PPE proficiency. They performed poorly. Therefore, the new interns entering July 2016 (N=151, Cohort 2) were immediately tested in the same OSCE station as Cohort 1 and provided feedback and teaching. Cohort 2 was then retested in the OSCE station early 2017. The Mann Whitney U test was used to compare Cohort 1 vs. Cohort 2 performances on checklist items. Cohort 2 performance differences at the beginning and end of the intern year were compared using McNemar's X2 test for paired nominal data.

RESULTS

Checklist items were scored, summed and reported as percent correct. In Cohort 2, the mean percent correct was higher in posttest than pretest, 92% vs. 77% )(P <0 .0001). The passing rate (100% correct) was significantly higher, 55% vs. 16%. Comparing Cohort 1 and Cohort 2 at the end of intern year, the mean percent correct was higher for Cohort 2 compared to Cohort 1, 95% vs 90% (P < 0.0001). 55% of the Cohort 2 passed (a perfect score) compared to 24% in Cohort 1 (P < 0.0001).

CONCLUSION

An OSCE can be utilized to evaluate and monitor hand hygiene and PPE proficiency for interns in the United States.

Understanding Workflow and Personal Protective Equipment Challenges Across Different Healthcare Personnel Roles

Background

Hospitals use standard and transmission-based precautions, including personal protective equipment (PPE), to prevent the spread of infectious organisms. However, little attention has been paid to the potentially unique challenges of various healthcare personnel (HCP) in following precaution practices.

Methods

From September through December 2016, 5 physicians, 5 nurses, and 4 physical therapists were shadowed for 1 hour 30 minutes to 3 hours 15 minutes at an academic medical center. Observers documented activities using unstructured field notes. Focus groups were conducted to better understand HCP perspectives about precautions and PPE-related challenges. Data were analyzed by comparing workflow and challenges (observed and stated) in precaution practices across HCP roles.

Results

Precaution patients were interspersed throughout physician rounds, which covered a broad geographic range throughout the hospital. Patient encounters were generally brief, and appropriate use of gowns and cleaning of personal stethoscopes varied among observed physicians. Nurses were unit based and frequently entered/exited rooms. Frustration with donning/doffing was especially apparent when needing supplies while in a precaution room, which nurses acknowledged was a time when practice lapses could occur. The observed physical therapists worked in one geographic location, spent extended periods of time with patients, and noted that given their close physical contact with patients, gowns do not fully protect them.

Conclusions

Movement patterns, time with patients, care activities, and equipment use varied across HCP, leading to a diverse set of challenges in following precaution practices and PPE use. Attention to these differences among HCP is important for understanding and developing effective strategies to prevent the potential spread of infectious organisms.

Audit of standardized precautionary and contact practices in the Intensive Care Unit

OBJECTIVE

To evaluate the structure and adherence to the standardized and specific precautionary measures of health professionals in the Intensive Care Unit of a teaching hospital in the Federal District of Brazil.

METHOD

A descriptive, cross-sectional and prospective study. A structured questionnaire was used via observations which recorded the practices of professionals with Individual Protection Equipment and indications of precautions. The chi-square test was applied, and the p-value was calculated.

RESULTS

A total of 52 professionals participated in the study, and 445 care procedures were observed in 36 audit sessions. The average adhesion rate for equipment use was 72.72%, with 94.91% for gloves, 91.43% for aprons, 80% for masks and 24.56% for safety glasses. When there was no indication and no personal protective equipment was used, the average rate was 68.01%, with 30.77% for gloves, 87.58% for aprons, 57.58% for masks, and 96.13% for safety glasses. Contact precautions were unnecessarily indicated for 35% of patients.

CONCLUSION

Good adherence to using gloves, aprons and masks were observed, but there was poor adherence to using safety glasses and unnecessary use of masks and admission contact precautions.

Modified glove use for contact precautions: Health care workers' perceptions and acceptance

BACKGROUND

Patients colonized or infected with methicillin-resistant Staphylococcus aureus and or vancomycin-resistant Enterococcus are placed under contact precautions. Contact precautions require patients to be placed in single rooms and their health care workers (HCWs) to wear gowns, aprons and gloves on entry and doffing on exit. Glove use is widely accepted to be associated with poor hand hygiene compliance. We trailed the removal of gloves for contact precautions for contacts not expected to involve body fluids to improve hand hygiene between multiple contacts of the patient and patient zone.

METHODS

We have conducted a 5 phase study of the removal of gloves for contacts without body fluids in 250 HCWs using pretrial focus groups (N = 12), hand microbiology (N = 40) (reported elsewhere), development of a modified contact precautions poster, trial of modified poster (n = 100), posttrial focus group discussion (n = 22), and a survey of HCWs postrollout in additional locations (n = 76).

RESULTS

Pretrial focus groups identified 4 themes, and the leading theme identified as the facilitator for glove use as self-protection. HCWs viewed current contact precaution guidelines as preventing them from making their own judgement regarding the need for gloving for patient contacts, leading continuous glove use without changing gloves between multiple contacts. Participants believed that the trial empowered them to make their own clinical judgment for gloves and to consciously use hand hygiene between dry (no body fluid) contacts. Four themes were discussed during the posttrial focus groups and although self-protection remained the central theme, hand hygiene replaced glove use. Participants spoke of an appreciation of and increased trust in hand hygiene during nonglove use for dry contacts. The survey responses from additional sites were mostly positive for the safety of nonglove use for dry contacts, it improved hand hygiene and that the adoption of the modified guidelines was empowering.

CONCLUSIONS

The trial of nonglove use for expected dry contact, while caring for patients under contact precautions for methicillin-resistant S aureus and or vancomycin-resistant Enterococcus, was successful in refocusing HCWs reliance on hand hygiene for self-protection. Mandatory glove use for contact precautions was believed to contribute to their failure to change gloves between procedures on the same patient and patient zone, with HCWs now recognizing multiple contacts with the same gloves as a risk for contamination.

The discontinuation of contact precautions for methicillin-resistant Staphylococcus aureus and vancomycin-resistant Enterococcus: Impact upon patient adverse events and hospital operations

BACKGROUND

Contact precautions for endemic methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococcus (VRE) are a resource-intensive intervention to reduce healthcare-associated infections, potentially impeding patient throughput and limiting bed availability to isolate other contagious pathogens. We investigated the impact of the discontinuation of contact precautions (DcCP) for endemic MRSA and VRE on patient outcomes and operations metrics in an acute care setting.

METHODS

This is a retrospective, quasi-experimental analysis of the 12 months before and after DcCP for MRSA and VRE at an academic medical centre. The frequency for bed closures due to contact isolation was measured, and personal protective equipment (PPE) expenditures and patient satisfaction survey results were compared using the Wilcoxon signed-rank test. Using an interrupted time series design, emergency department (ED) admission wait times and rates of patient falls, pressure ulcers and nosocomial MRSA and VRE clinical isolates were compared using GEEs.

RESULTS

Prior to DcCP, bed closures for MRSA and/or VRE isolation were associated with estimated lost hospital charges of $9383 per 100 bed days (95% CI: 8447 to 10 318). No change in ED wait times or change in trend was observed following DcCP. There were significant reductions in monthly expenditures on gowns (-61.0%) and gloves (-16.3%). Patient satisfaction survey results remained stable. No significant changes in rates or trends were observed for patient falls or pressure ulcers. Incidence rates of nosocomial MRSA (1.58 (95% CI: 0.82 to 3.04)) and VRE (1.02 (95% CI: 0.82 to 1.27)) did not significantly change.

CONCLUSIONS

DcCP was associated with an increase in bed availability and revenue recovery, and a reduction in PPE expenditures. Benefits for other hospital operations metrics and patient outcomes were not identified.

Reengineering the patient's environment: Establishment of a "Red Box" to improve communications with patients on isolation precautions

BACKGROUND

Hospitalized patients on isolation precautions are reported to have less frequent health care provider (HCP) visits owing to time required to don and doff personal protective equipment (PPE). Thus, placement on isolation precautions leads to negative patient perception and affects their care.

METHODS

A "Red Box" that extended 3 feet beyond the door was marked in 50 patient rooms of a tertiary care hospital and used for patient communication by HCPs without PPE. HCP and patient perceptions of the Red Box were studied via a survey and personal interviews. Compliance was also observed by "secret shoppers." Rates of health care-associated infections (HAIs) were monitored.

RESULTS

Over a 1-year period, HCPs reported improved patient communication, utilization of time, and increased interactions. HCPs used the Red Box to communicate with patients 76% of the time. In 92% of the cases, HCPs remembered not to use PPE while in the Red Box and were observed 80% of the time using PPE when venturing beyond the Red Box. Patients reported improved frequency of HCP contact and satisfaction. HAIs in these units did not show any increase compared with those in prior years.

CONCLUSIONS

HCP interaction and communication with patients on isolation precautions improved with the reengineering of the patient environment in the form of the Red Box. HAI rates did not increase with this intervention.

Hospital Infection Prevention: How Much Can We Prevent and How Hard Should We Try?

PURPOSE OF REVIEW

To summarize the extent to which hospital-acquired infections (HAIs) are preventable and to assess expectations, challenges, and barriers to improve patient outcomes.

RECENT FINDINGS

HAIs cause significant morbidity and mortality. Getting to zero HAIs is a commonly stated goal yet leads to unrealistic expectations. The extent to which all HAIs can be prevented remains debatable and is subject to multiple considerations and barriers. Current infection prevention science is inexact and evolving. Evidence-based infection prevention practices are often incompletely implemented and at times controversial. Highly sensitive surveillance results in overdiagnosis, calling into question the real incidence of HAIs. Perceived reductions in HAIs by gaming the system lead to false conclusions about preventability and may cause harm. Successful HAI reduction programs require executive oversight yet keeping hospital leaders engaged in infection prevention is a challenge given competing priorities. Medicine is not a physical science with precisely defined laws; thus, infection prevention interventions are subject to variable outcomes. Perhaps up to 55-70% of HAIs are potentially preventable. This is subject to a law of diminishing returns as the preventable proportion of HAIs may reduce over time with improvements in patient safety. As the principle tenet of medicine is first do no harm, infection prevention programs should relentlessly pursue reliable, sustainable, and practical strategies for heightened patient safety.

High Rates of Community and Hospital Acquired Infections in Patients with Cellular Immunodeficiencies

PURPOSE

Patients with primary immunodeficiency diseases (PID) are perceived to be at high risk for acquiring as well as developing complications from infections. There is little data describing the infection type and frequency these patients may acquire in the community or during hospital admissions. Data is critically needed in order to inform best practices on how to protect these vulnerable patients.

METHODS

This is a retrospective study which included PID patients who were discharged from Children's National Health System (CNHS) from January 1, 2011, through August 31, 2017, and were assigned a discharge diagnosis code indicating PID. Hospitalizations that occurred in the study period were reviewed to extract information on the type of infections upon admission and during hospitalization. The rate of hospital acquired infections (HAIs) was calculated by the number of HAIs divided by the total number of days between date of admission and date of discharge or receiving the first bone marrow transplant, whichever the one came first. The rates were then compared to the HAI rate among oncology patients receiving treatment at CNHS during the same study period.

RESULTS

During this study period, 33 PID patients were admitted 80 times for a total of 1855 patient days. Of these 80 admissions, 31 were due to an infection. Ten of the 31 admissions with severe combined immunodeficiency disease (SCID) were infection related, 4/4 in ectodermal dysplasia with immunodeficiency due to gain of function mutation (IkappaBalpha) patients, 8/10 in Wiskott-Aldrich patients, 1/2 in STAT3 mutation patients, 1/1 in Hyper IGM patient, 1/5 in severe chronic active EBV (SCAEBV) patients, 1/1 NK defect, 2/21 in primary hemophagocytic lymphohistiocytosis patients, 3/4 chronic granulomatous disease, and 0/1 congenital neutropenia. HAI occurred in 11 out of 80 admissions (13.75%). Patients with SCID had the highest HAI rate of 13.09 per 1000 patient days, followed by SCAEBV (11.10), IkappaBalpha (6.58), and Wiskott-Aldrich (4.91). Comparing to oncology patients in which the HAI rate was 0.92 per 1000 patient days. SCID patients had 11.7 (95% confidence interval 3.7-29; p < 0.001) and T cell defects excluding SCID had 4.8 (95% CI 1.0-14.8; p = 0.03) times greater risk of acquiring an infection during a hospitalization.

CONCLUSIONS

Patients with severe T cell defects such as SCID are at greater risk for infections in the community and in hospital settings. Additional infection prevention measures are likely needed when caring for these patients in a clinic or as an inpatient. Further studies are urgently needed to determine the most appropriate measures for these patients.

Healthcare-acquired infections: prevention strategies

Healthcare-acquired infections (HAI) impact on patient care and have cost implications for the Australian healthcare system. The management of HAI is exacerbated by rising rates of antimicrobial resistance (AMR). Health-care workers and a contaminated hospital environment are increasingly implicated in the transmission and persistence of multi-resistant organisms (MRO), as well as other pathogens, such as Clostridium difficile. This has resulted in a timely focus on a range of HAI prevention actions. Core components include antimicrobial stewardship, to reduce overuse and ensure evidence-based antimicrobial use; infection prevention strategies, to control MRO - particularly methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant Enterococcus spp. (VRE) and, more recently, multi-resistant Gram-negative bacteria; enhanced institutional investment in hand hygiene; hospital cleaning and disinfection; and the development of prescribing guidelines and standards of care. AMR surveillance and comparisons of prescribing are useful feedback activities once effectively communicated to end users. Successful implementation of these strategies requires cultural shifts at local hospital level and, to tackle the serious threat posed by AMR, greater co-ordination at a national level. HAI prevention needs to be multi-modal, requires broad healthcare collaboration, and the strong support and accountability of all medical staff.

Antibiotic stewardship and horizontal infection control are more effective than screening, isolation and eradication

Purpose

The global rise of multidrug resistant organisms (MDROs) is of major concern since infections by these pathogens are difficult, and in some cases, even impossible to treat. This review will discuss the effectiveness of a pathogen-independent alternative approach consisting of the implementation of antibiotic stewardship (ABS) programs, improvement of hand hygiene compliance, and daily antiseptic body washings instead of “screening, isolation and eradication” as recommended by many infection control guidelines today.

Methods

A review of the literature.

Results

The classical approach composed of screening, isolation and eradication has many limitations, including lack of standardization of the screening methods, risk of medical errors for patients in isolation and failure to eradicate resistant bacteria. Notably, concrete evidence that this current infection control approach actually prevents transmission is still lacking. We found that a novel approach with the training of infectious diseases specialists can reduce the usage of antimicrobials, thereby significantly decreasing the emergence of new MDROs. Moreover, increased hand hygiene compliance not only reduces transmission of MDROs, but also that of sensitive organisms causing the majority of nosocomial infections. Further, instruments, such as continuing education, bed-side observation, and the use of new tools, e.g. electronic wearables and Wi-Fi-equipped dispensers, are all options that can also improve the current low hand hygiene compliance levels. In addition, daily antiseptic body washes were observed to reduce the transmission of MDROs, especially those deriving from the body surface-like MRSA and VRE in specific settings. Finally, antiseptic body washes were seen to have similar effects on reducing transmission rates as screening and isolation measures.

Conclusions

In summary, this review describes a novel evidence-based approach to counteract the growing medical challenge of increasing numbers of MDROs.

The Impact of Isolation on Healthcare Worker Contact and Compliance With Infection Control Practices in Nursing Homes

OBJECTIVETo directly observe healthcare workers in a nursing home setting to measure frequency and duration of resident contact and infection prevention behavior as a factor of isolation practiceDESIGNObservational studySETTING AND PARTICIPANTSHealthcare workers in 8 VA nursing homes in Florida, Maryland, Massachusetts, Michigan, Washington, and TexasMETHODSOver a 15-month period, trained research staff without clinical responsibilities on the units observed nursing home resident room activity for 15-30-minute intervals. Observers recorded time of entry and exit, isolation status, visitor type (staff, visitor, etc), hand hygiene, use of gloves and gowns, and activities performed in the room when visible.RESULTSA total of 999 hours of observation were conducted across 8 VA nursing homes during which 4,325 visits were observed. Residents in isolation received an average of 4.73 visits per hour of observation compared with 4.21 for nonisolation residents (P<.01), a 12.4% increase in visits for residents in isolation. Residents in isolation received an average of 3.53 resident care activities per hour of observation, compared with 2.46 for residents not in isolation (P<.01). For residents in isolation, compliance was 34% for gowns and 58% for gloves. Healthcare worker hand hygiene compliance was 45% versus 44% (P=.79) on entry and 66% versus 55% (P<.01) on exit for isolation and nonisolation rooms, respectively.CONCLUSIONSHealthcare workers visited residents in isolation more frequently, likely because they required greater assistance. Compliance with gowns and gloves for isolation was limited in the nursing home setting. Adherence to hand hygiene also was less than optimal, regardless of isolation status of residents.Infect Control Hosp Epidemiol 2018;39:683-687.

A qualitative, interprofessional analysis of barriers to and facilitators of implementation of the Department of Veterans Affairs' Clostridium difficile prevention bundle using a human factors engineering approach

BACKGROUND

Clostridium difficile infection (CDI) is increasingly prevalent, severe, and costly. Adherence to infection prevention practices remains suboptimal. More effective strategies to implement guidelines and evidence are needed.

METHODS

Interprofessional focus groups consisting of physicians, resident physicians, nurses, and health technicians were conducted for a quality improvement project evaluating adherence to the Department of Veterans Affairs' (VA) nationally mandated C difficile prevention bundle. Qualitative analysis with a visual matrix display identified barrier and facilitator themes guided by the Systems Engineering Initiative for Patient Safety model, a human factors engineering approach.

RESULTS

Several themes, encompassing both barriers and facilitators to bundle adherence, emerged. Rapid turnaround time of C difficile polymerase chain reaction testing was a facilitator of timely diagnosis. Too few, poorly located, and cluttered sinks were barriers to appropriate hand hygiene. Patient care workload and the time-consuming process of contact isolation precautions were also barriers to adherence. Multiple work system components serve as barriers to and facilitators of adherence to the VA CDI prevention bundle among an interprofessional group of health care workers. Organizational factors appear to significantly influence bundle adherence.

CONCLUSION

Interprofessional perspectives are needed to identify barriers to and facilitators of bundle implementation, which is a necessary first step to address adherence to bundled infection prevention practices.

Adherence to contact precautions by different types of healthcare workers through video monitoring in a tertiary hospital

BACKGROUND

Contact precautions are required to prevent transmission of multi-drug-resistant organisms; however, reports on adherence rates vary. This study used video monitoring to evaluate adherence to the use of personal protective equipment (PPE) by different types of healthcare workers.

METHODS

This observational study was conducted in a 781-bed tertiary hospital from July 2016 to March 2017. Cameras were installed in areas where staff don PPE. Infection control teams observed the videos and assessed adherence rates.

RESULTS

In total, 1097 opportunities for donning PPE were observed. Most staff observed were nurses and nursing assistants (Ns/Nsas) (880/1097, 80.2%). Overall, the adherence rate to appropriate PPE use was 34.0%. The adherence rate among Ns/Nsas was lower (239/858, 27.9%) compared with infectious disease doctors (18/18, 100%) and cleaning staff (42/49, 85.7%). The adherence rate for PPE use for Clostridium difficile infection (CDI) with toxin detection was significantly higher than that for CDI without toxin detection and multi-drug-resistant organisms (P<0.001 for both). The adherence rate for patients with an independent functional status was higher than that for patients with a dependent functional status (P=0.018). The adherence rate was lower in the intensive care unit (ICU) than in non-ICU wards (27.6% vs 36.5%; P=0.006).

CONCLUSION

Video monitoring is a useful tool for monitoring adherence to PPE use, facilitating observation of more PPE opportunities than direct observation. Adherence to contact precautions varied by occupation; however, overall adherence was insufficient. The lower adherence rate in nurses might be due to more frequent care visits.

Isolierungsmaßnahmen

Die Kenntnis des infektionsspezifischen Übertragungsweges einer Erkrankung ist die entscheidende Voraussetzung zur Festlegung sinnvoller, d. h. effektiver Präventionsmaßnahmen, zu denen auch heute noch die räumliche Isolierung von Patienten gehört. Die in der Vergangenheit empfohlenen pauschalen Maßnahmen, die weder den Übertragungsweg noch die Virulenz eines Infektionserregers angemessen berücksichtigten, führten oftmals zu erkennbarer Überisolierung, mit der Folge, dass in der täglichen Praxis notwendige Isolierungsmaßnahmen eher nachlässig gehandhabt wurden. Die Konsequenzen waren vermeidbare Kontaktinfektionen in Kliniken. Andererseits birgt die Unterbringung in einem Isolierzimmer die Gefahr einer schlechteren medizinischen wie pflegerischen Versorgung und damit einer Gefährdung des Patienten. Erreger- und maßnahmenbezogene Isolierkriterien mit disziplinierter Befolgung erforderlicher Verhaltensregeln seitens aller Beschäftigten, der isolierten Patienten und ihrer Besucher sind die Voraussetzung einer erfolgreichen Vermeidung von Infektionsübertragungen. Die Vermeidung unnötiger Isolierungsmaßnahmen spart erhebliche Kosten, reduziert die Belastung von Ärzten wie Pflegekräften und damit die Gefahr der Noncompliance bei essenziellen Präventionsmaßnahmen wie Händedesinfektion und andere Maßnahmen der Basishygiene.

Determinants of Implementation of Isolation Precautions Against Infections by Multidrug-Resistant Microorganisms: A Hospital-Based, Multicenter, Observational Study

OBJECTIVES

We aimed to ascertain the factors associated with lack of isolation precautions (IP) in patients infected or colonized by third-generation cephalosporin-resistantEnterobacteriaceae(3GCR-E) and methicillin-resistantStaphylococcus aureus(MRSA) in hospital settings.

DESIGN

Prospective surveillance and audit of practices.

SETTING

The study included 4 university hospitals in Lyon, France.

PARTICIPANTS

All patients hospitalized between April and June in 2013 and 2015 were included. Case patients had ≥1 clinical sample positive for MRSA and/or 3GCR-E.

METHODS

Factors associated with the lack of IP implementation were identified using multivariate logistic regression. The incidence of MDRO infections was expressed per 10,000 patient days.

RESULTS

Overall, 57,222 patients accounting for 192,234 patient days of hospitalization were included, and 635 (1.1%) MDRO cases were identified. MRSA incidence was 2.5 per 10,000 patient days (95% confidence interval [95% CI], 2.1–3.0) and 3GCR-E incidence was 10.1 per 10,000 patient days (95% CI, 9.2–11.0), with no crude difference between 2013 and 2015 (P=.15 andP=.11, respectively). Among 3GCR-E, the main species wereEscherichia coli(43.8%) andKlebsiella pneumoniae(31.0%). Isolation precautions were implemented in 78.5% of cases. Lack of IP implementation was independently associated with patient age, year, specialty, hospital, colonization compared with infection, and lack of medical prescription for IPs (adjusted odds ratio, 17.4; 95% CI, 8.5–35.8;P<.001).

CONCLUSIONS

MRSA and 3GCR-E infections and/or colonizations are frequent in healthcare settings, and IPs are implemented in most cases. When IPs are lacking, the main factor is the absence of medical prescription for IPs, underscoring the need for alerts to physicians by the microbiological laboratory and/or the infection control team.

Infect Control Hosp Epidemiol2017;38:1188–1195