Impact of multimodal interventions targeting behavior change on hand hygiene adherence in nursing homes: An 18-month quasi-experimental study

BACKGROUND

Nursing home residents are vulnerable and frail, and hand hygiene adherence is often too low to prevent transmission of infections. This study's aim was to investigate whether interventions targeting behavior change can improve hand hygiene adherence in nursing homes.

METHODS

Over 18 months, 22 nursing home wards participated in this quasi-experimental study. Three intervention wards were selected based on the mean values of hand hygiene adherence, infections, and antibiotic use. Multimodal interventions targeting behavior change, including education, UV-light boxes, and posters, were implemented.

RESULTS

Hand hygiene adherence increased to 60.9% in the intervention wards and decreased to 51.3% in the control wards. The control wards experienced lower adherence in all indications of WHO's "My five moments for hand hygiene."

DISCUSSION

Interventions should target proper hand hygiene before patient contact and glove use because health care workers have low adherence in these areas. The findings indicate that the type of intervention is less important than attention to hand hygiene and activating workers' motivation. Using a behavior change approach and continuous reinforcement is important because the effects of interventions diminish over time.

CONCLUSIONS

Our findings showed that multimodal interventions targeting behavior change may increase hand hygiene adherence.

Hand Hygiene in the Intensive Care Unit: Knowledge, Compliance and Factors Influencing Nursing Adherence, a Descriptive Study

Background:

Nosocomial infections are particularly common among hospitalized patients who undergo resuscitation compared with other types of care. Hand hygiene remains the simplest and most effective measure to prevent and control the risk of infection.

Objective:

The main objectives are to evaluate hand hygiene compliance among nursing staff in the different intensive care units and to identify the factors influencing the adherence of nursing staff to the practice.

Methods:

It was a quantitative descriptive study using a questionnaire and an observation grid with all the nursing staff working in all the intensive care units of our university hospital.

Results:

The study showed a hand contamination rate of (80%), a hand hygiene compliance rate of (21.3%), it also showed the different factors explaining non-adherence, these are not necessarily related to training, nor to the availability of material resources but related to hidden reasons, non-apparent factors, which are often more important. (Workload and work environment)

Conclusion:

This study examined hand hygiene in the ICU setting, obtained data on overall compliance, which remains poor, and the various factors influencing nurses' adherence to the practice.

Health Care Workers' Adherence to Hand Hygiene Guidelines in Emergency Surgical Room of a Tertiary Care Hospital

Background  Out of every 100 hospitalized patients, 7 patients in advanced countries and 10 patients in emerging countries acquire health care-associated infections (HCAIs). Hand hygiene (HH) procedures are the simple and cost-effective solution to significantly reduce HCAI. We wanted to know the compliance rate of HH procedures among health care workers (HCWs) working in emergency surgical room (ESR) of our institute, so that feedback can be given to them and further interventions can be planned.

Methodology  This is a cross-sectional observational study conducted in ESR. Resident doctors and faculties, interns, and nurses were directly observed for all the five moments of HH recommended by World Health Organization (WHO). The data have been recorded with the WHO recommended form for observation and basic compliance calculation for HH.

Results  In total, 1,370 HH opportunities were observed and recorded, of which 690 were for resident doctors and faculties, and 340 each for interns and nurses. The overall total HH compliance rate among all HCWs was 41.3% and resident doctors and faculties had the poorest compliance. Poorest compliance was observed for moment 1, whereas maximum compliance was for moment 3 among all the HCWs.

Conclusion  HCWs' adherence to HH guidelines in ESR of this tertiary care hospital is low and is least in resident doctors and faculties.

Rewriting the playbook: infection prevention practices to mitigate nosocomial severe acute respiratory syndrome coronavirus 2 transmission

PURPOSE OF REVIEW

Given the limited evidence and experience with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), this novel pathogen has challenged the field of infection prevention. Despite uncertainty, infection prevention principles and experience with similar diseases have helped guide how to best protect providers and patients against disease acquisition.

RECENT FINDINGS

Guidance to date has relied on data from SARS-CoV-1 and MERS-CoV to guide practices on patient isolation and personal protective equipment (PPE) use. Although a face mask and eye protection are likely adequate for most clinical scenarios, published guidelines for PPE can be confusing and conflicting. Consensus for what constitutes a high-risk aerosol-generating procedure (AGP) is lacking, but most agree providers performing procedures such as bronchoscopy, intubation, and cardiopulmonary resuscitation would likely benefit from the use of an N95 respirator and eye protection.

SUMMARY

Needed research to elucidate the predominant SARS-CoV-2 mode of transmission is not likely to be completed in the immediate future. Recommendations for PPE to mitigate procedure-associated risk remain controversial. Nonetheless, implementation of existing measures based on basic infection prevention principles is likely to prevent transmission significantly.

Respiratory Practices in the Long-term Care Setting: A Human Factors-Based Risk Analysis

OBJECTIVE

To systematically assess safety risks pertaining to tracheostomy care in the long-term care (LTC) setting using a human factors engineering approach.

DESIGN

We utilized a 5-part approach to complete our proactive risk assessment: (1) performed a hierarchical task analysis of the processes of tracheostomy stoma and suctioning; (2) identified failure modes where a subtask may be completed inappropriately; (3) prioritized each failure mode based on a risk priority scale; (4) identified contributing factors to and consequences for each of the prioritized failure modes; and (5) identified potential solutions to eliminate or mitigate risks.

SETTING

Three high-acuity LTC facilities with ventilator units across Maryland.

METHODS

The hierarchical task analysis was conducted jointly by 2 human-factors experts and an infectious disease physician based on respiratory care policies from the Centers for Disease Control and Prevention and existing policies at each LTC facility. The findings were used to guide direct observations with contextual inquiry and focus group sessions to assess safety risks for residents receiving tracheostomy care.

RESULTS

Direct observations of tracheostomy care and suctioning in the LTC setting revealed significant variations in practice. Respiratory therapists working in LTC reported lack of training and ambiguity concerning recommended procedures to reduce infection transmission in daily care. Highest risk steps identified in tracheostomy care and suctioning included hand hygiene, donning gloves, and providing intermittent suctioning as the suction catheter was withdrawn. Participants identified risk mitigation strategies targeting these high-risk failure modes that addressed contributing factors related to 5 work system components: person (knowledge and competency), task (eg, urgency or time constraints), tools and technology (eg, availability of hand sanitizer), environment (eg, communal rooms), and organization (eg, patient safety culture).

CONCLUSIONS AND IMPLICATIONS

Human factors analysis of the highest-risk steps in respiratory care activities in the LTC setting suggest several potential mitigation strategies to decrease the risk of infection transmission. Clear procedure guidelines with training are needed to reduce ambiguity and improve care in this setting. Involving frontline staff in patient safety issues using human factors principles and risk analysis may encourage participation and improve the infection prevention culture in LTC.

The Use of Copper as an Antimicrobial Agent in Health Care, Including Obstetrics and Gynecology

Health care-associated infections (HAIs) are a global problem associated with significant morbidity and mortality. Controlling the spread of antimicrobial-resistant bacteria is a major public health challenge, and antimicrobial resistance has become one of the most important global problems in current times. The antimicrobial effect of copper has been known for centuries, and ongoing research is being conducted on the use of copper-coated hard and soft surfaces for reduction of microbial contamination and, subsequently, reduction of HAIs. This review provides an overview of the historical and current evidence of the antimicrobial and wound-healing properties of copper and explores its possible utility in obstetrics and gynecology.

Safe removal of gloves from contact precautions: The role of hand hygiene

BACKGROUND

Routine hand hygiene effectively removes methicillin-resistant Staphylococcus aureus (MRSA) and/or vancomycin resistant Enterococcus (VRE) from the ungloved hands of healthcare workers (HCWs) who are caring for patients under contact precautions, when exposure to bodily fluids is not expected.

METHODS

HCWs' ungloved hands were cultured after hand hygiene with alcohol-based hand rub (ABHR) or soap-and-water wash after routine clinical care of patients known to be colonized or infected with MRSA or VRE.

RESULTS

Two hundred forty samples from 40 HCWs were tested and found to be culture negative for either MRSA or VRE after contact with patients when 3 pumps of ABHR (0/80) or plain soap-and-water wash (0/80) were used. No VRE was observed in any of the 120 samples collected. Two plates (2/40) grew 1 colony-forming unit of MRSA after 2 pumps of ABHR. Two HCWs with positive plates were cultured negative on retesting.

CONCLUSION

We showed that appropriate hand hygiene was effective in removing MRSA and VRE even when gloves were not used for routine clinical care, despite contact with patients known to be colonized with MRSA or VRE. A modified approach to glove use for dry contact with patients on contact precautions might improve patient safety within healthcare settings.

Breaking the Chain of Infection in Older Adults: A Review of Risk Factors and Strategies for Preventing Device-Related Infections

Device-related infections (DRIs) are a significant cause of morbidity and mortality among older adults. Indwelling devices (urinary catheters, percutaneous feeding tubes, and central venous catheters) are frequently used in this vulnerable population. Indwelling devices provide a portal of entry for pathogenic organisms to invade a susceptible host and cause infection and are an important target for infection prevention and antimicrobial stewardship efforts. Within the "Chain of Infection" that leads to DRIs in older adults, multiple opportunities exist to implement interventions that "break the links" and reduce colonization with multidrug-resistant organisms, reduce infections, and improve antimicrobial use.

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.

Modified gloves: A chance for the prevention of nosocomial infections

BACKGROUND

Non-sterile gloves primarily serve as a barrier protection for health care workers (HCWs). However, pathogens may often contaminate the skin of HCWs during glove removal; therefore, pathogens may be further transmitted and cause nosocomial infections.

METHODS

A field study was conducted comparing contamination rates when using standard gloves or a new modified product equipped with an additional flap (doffing aid) for easier removal. Gloves were removed after bathing gloved hands in an artificial fluorescent lotion. The number of contamination spots was then visually examined using ultraviolet light.

RESULTS

There were 317 individuals who participated in this study: 146 participants (104 nurses and 42 physicians) used standard gloves, whereas 171 participants (118 nurses and 53 physicians) used the modified product. Use of the modified gloves instead of the standard product (15.8% vs 73.3%, respectively; P < .001) and being a physician rather than a nurse (29.5% vs 47.7%, respectively; P = .003) were the only independent risk factors for reduction of contamination.

CONCLUSIONS

This study shows that the modified product could, at least in vitro, significantly reduce the rate of hand and wrist contamination during removal compared with standard gloves. By this, it may significantly improve the overall quality of patient care when used on the wards directly at the patient's site.

Human factors considerations in designing for infection prevention and control in neonatal care - findings from a pre-design inquiry

Qualitative data collection methods drawn from the early stages of human-centred design frameworks combined with thematic analysis were used to develop an understanding of infection prevention practice within an existing neonatal intensive care unit. Findings were used to generate a framework of understanding which in turn helped inform a baseline approach for future research and design development. The study revealed that a lack of clarity between infection transmission zones and a lack of design attributes needed to uphold infection prevention measures may be undermining healthcare workers' understanding and application of good practice. The issue may be further complicated by well-intentioned behavioural attitudes to meeting work objectives; undue influences from spatial constraints; the influence of inadvertent and excessive touch-based interactions; physical and/or cognitive exertion to maintain transmission barriers; and the impact of expanding job design and increased workload to supplement for lack of effective barriers. Practitioner Summary: Despite high hand hygiene compliance within a neonatal intensive care unit, healthcare workers expressed concerns about the unit design and infection prevention practice. Early inquiry methods from human-centred design and thematic analysis helped develop a framework to understand how design can be used to aid infection prevention.

Exploring inappropriate certified nursing assistant glove use in long-term care

BACKGROUND

Certified Nursing Assistants (CNAs) frequently wear gloves when they care for patients in standard precautions. If CNAs use gloves inappropriately, they may spread pathogens to patients and the environment, potentially leading to health care-associated infections (HAIs).

METHODS

Using a descriptive structured observational design, we examined the degree of inappropriate health care personnel glove use in a random sample of 74 CNAs performing toileting and perineal care at 1 long-term care facility.

RESULTS

During the 74 patient care events, CNAs wore gloves for 80.2% (1,774/2,213) of the touch points, failing to change gloves at 66.4% (225/339) of glove change points. CNAs changed gloves a median of 2.0 times per patient care event. A median of 1.0 change occurred at a change point. CNAs failed to change their gloves at a glove change point a median of 2.5 times per patient care event. Most (61/74; 82.4%) patient care events had >1 contaminated touch point. Over 44% (782/1,774) of the gloved touch points were defined as contaminated for a median of 8.0 contaminated glove touch points per patient care event. All contaminated touches were with gloved hands (P <.001).

CONCLUSIONS

Inappropriate glove use was frequently observed in this study. Contaminated gloves may be a significant cause of cross-contamination of pathogens in health care environments. Future research studies should evaluate strategies to improve glove use to reduce HAIs.

Implementing a Pilot Trial of an Infection Control Program in Nursing Homes: Results of a Matched Cluster Randomized Trial

BACKGROUND

Hand hygiene is the single-most important nursing home (NH) infection control measure. We piloted a multifaceted hand-washing/surface cleaning intervention in 5 NHs. Our aims were to assess the feasibility of implementing this intervention by assessing staff participation, satisfaction, hand-washing compliance, and whether the intervention was associated with reductions in infection rates, new antimicrobial orders, or overall hospitalization rates.

METHODS

We conducted a randomized, pair-matched pilot intervention in 10 Colorado NHs to reduce infections for all NH residents from October 1, 2015 through May 31, 2016. To evaluate process, we determined online education participation rates, recorded intervention fidelity through weekly reporting measures on microbial surface counts, hand-washing, and infection reporting, and conducted a survey of participating employees. To evaluate potential impacts on clinical outcomes, we collected information on monthly infection log data, new antibiotic orders, and hospitalizations.

RESULTS

Three of 5 sites had education participation rates >90%, the other 2 were poor (13% and 23%). The majority of participation survey respondents (58%) were promoters of the intervention. Directors of nursing reported hygiene hand-washing data for 19.6/24 (81.8%) weeks and microbial surface count data for 20.4/24 (85.1%) weeks. For the first 4 weeks of the study, the bacterial counts averaged 351.4 ± 497.5 relative light units, the mean value for the last 4 weeks was 127.7 ± 85.1 (P value = .12). The number of hand-washing occasions per NH resident was steady over time but differed by treatment facility (P = .03). We observed nonsignificant reductions for total infections (6.7%) and lower respiratory tract infections (19.9%) vs control NHs. There were no significant differences in antimicrobial orders or hospitalization rates pre-post intervention.

CONCLUSIONS

This multifaceted hand-washing and surface cleaning intervention was designed to reduce infection rates among NH residents. In our 10-facility randomized, matched pair pilot study, we observed program compliance and satisfaction along with reductions in surface bacterial counts, but did not observe a statistically significant reduction in infection rates, antimicrobial use, or hospitalizations.

Deconstructing the relative benefits of a universal glove and gown intervention on MRSA acquisition

BACKGROUND

The 20-site Benefits of Universal Glove and Gown (BUGG) study found that wearing gloves and gowns for all patient contacts in the intensive care unit (ICU) reduced acquisition rates of meticillin-resistant Staphylococcus aureus (MRSA). The relative importance of gloves and gowns as a barrier, improved hand hygiene, and reduced healthcare worker (HCW)-patient contact rates is unknown.

AIM

To determine what proportion of the reduction in acquisition rates observed in the BUGG study was due to improved hand hygiene, reduced contact rates, and universal glove and gown use using agent-based simulation modelling.

METHODS

An existing agent-based model to simulate MRSA transmission dynamics in an ICU was modified, and the model was calibrated using site-specific data. Model validation was completed using data collected in the BUGG study. A full 2^k factorial design was conducted to quantify the relative benefits of improving each of the aforementioned factors with respect to MRSA acquisition rates.

FINDINGS

Across 40 simulated replications for each factorial design point and intervention site, approximately 44% of the decrease in MRSA acquisition rates was due to universal glove and gown use, 38.1% of the decrease was due to improvement in hand hygiene compliance on exiting patient rooms, and 14.5% of the decrease was due to the reduction in HCW-patient contact rates.

CONCLUSION

Using mathematical modelling, the decrease in MRSA acquisition in the BUGG study was found to be due primarily to the barrier effects of gowns and gloves, followed by improved hand hygiene and lower HCW-patient contact rates.

Implementation of the WHO multimodal Hand Hygiene Improvement Strategy in a University Hospital in Central Ethiopia

Background

The burden of health-care associated infections in low-income countries is high. Adequate hand hygiene is considered the most effective measure to reduce the transmission of nosocomial pathogens. We aimed to assess compliance with hand hygiene and perception and knowledge about hand hygiene before and after the implementation of a multimodal hand hygiene campaign designed by the World Health Organization.

Methods

The study was carried out at Asella Teaching Hospital, a university hospital and referral centre for a population of about 3.5 million in Arsi Zone, Central Ethiopia. Compliance with hand hygiene during routine patient care was measured by direct observation before and starting from six weeks after the intervention, which consisted of a four day workshop accompanied by training sessions and the provision of locally produced alcohol-based handrub and posters emphasizing the importance of hand hygiene. A second follow up was conducted three months after handing over project responsibility to the Ethiopian partners. Health-care workers’ perception and knowledge about hand hygiene were assessed before and after the intervention.

Results

At baseline, first, and second follow up we observed a total of 2888, 2865, and 2244 hand hygiene opportunities, respectively. Compliance with hand hygiene was 1.4% at baseline and increased to 11.7% and 13.1% in the first and second follow up, respectively (p < 0.001). The increase in compliance with hand hygiene was consistent across professional categories and all participating wards and was independently associated with the intervention (adjusted odds ratio, 9.18; 95% confidence interval 6.61-12.76; p < 0.001). After the training, locally produced alcohol-based handrub was used in 98.4% of all hand hygiene actions. The median hand hygiene knowledge score overall was 13 (interquartile range 11–15) at baseline and increased to 17 (15–18) after training (p < 0.001). Health-care workers’ perception surveys revealed high appreciation of the different strategy components.

Conclusion

Promotion of hand hygiene is feasible and sustainable in a resource-constrained setting using a multimodal improvement strategy. However, absolute compliance remained low. Strong and long-term commitment by hospital management and health-care workers may be needed for further improvement.

Electronic supplementary material

The online version of this article (doi:10.1186/s13756-016-0165-9) contains supplementary material, which is available to authorized users.

Impact of WHO Hand Hygiene Improvement Program Implementation: A Quasi-Experimental Trial

Objectives. As affirmed by the World Health Organization (WHO), hand hygiene is the most powerful preventive measure against healthcare-associated infections (HCAIs) and, thus, it has become one of the five key elements of patient safety program. The aim is to assess the effect of implementation of the WHO's Multimodal Hand Hygiene Improvement Strategy among healthcare workers of a tertiary teaching hospital in a developing country. Methods. Hand hygiene compliance was assessed among healthcare workers, according to five defined moments for hand hygiene of the WHO, before and after implementation of the WHO's Multimodal Hand Hygiene Improvement Strategy in fourteen wards of a tertiary teaching hospital in Shiraz, Iran. We used direct observation method and documented the results in WHO hand hygiene observation forms. Results. There was a significant change in compliance before and after implementation of WHO's Multimodal HH Improvement Strategy (29.8% and 70.98%, resp.). Conclusions. Implementing WHO hand hygiene program can significantly improve hand hygiene compliance among nurses.

Healthcare workers' compliance with glove use and the effect of glove use on hand hygiene compliance

espite considerable evidence that appropriate hand hygiene is the leading measure to prevent healthcare-associated infection, compliance with infection control recommendations remains low among healthcare workers. Literature regarding the role that concomitant glove use has on compliance with hand hygiene is limited and conflicting. The aims of this study were to examine healthcare workers' glove use by observation and to evaluate the effect that glove use has on compliance with hand hygiene. Non-participant observation was carried out on 12 randomly-selected wards in two district general hospitals. Although the overall compliance rate for glove use was high at 92%, gloves were also overused. The proportion of glove overuse was 42%. Overall hand hygiene compliance was 64%. However, hand hygiene compliance was significantly worse following glove overuse, demonstrating that inappropriate glove use may be a component of poor hand hygiene compliance. Recommendations arising from these results are that, in order to improve adherence to hand hygiene recommendations, multi-faceted interventions should be aimed at changing healthcare workers' glove use behaviour.

Hand hygiene compliance: universally better post-contact than pre-contact in healthcare workers in the UK and Australia

Objective: To establish whether post-patient contact hand hygiene practice is universally higher than pre-patient contact in two highly resourced countries.

Methods: Observations of medical and nursing staffs' hand hygiene compliance were made by the same observers in two different hospitals in Sydney and Birmingham, in both intensive care units (ICU) and surgical wards, using a standardised data collection tool. Results: Hand hygiene rates pre- and post-patient contact were low for both nurses and doctors in Sydney and Birmingham, with the exception of Sydney ICU doctors (pre-contact 74.8% and post-contact 75.7%, p=0.868). Post-contact compliance was low but significantly better than pre-contact in Sydney ICU nurses (41.3% versus 59.6% p<0.0001), surgical ward nurses (14.9% versus 29.6%, p=0.0019) and Sydney surgeons (10.2% versus 30.2%, p<0.0001). Post-contact compliance rates were low but higher than pre-contact in Birmingham ICU nurses (33.1% versus 52.2%, p=0.0011) and doctors (29.3% versus 70.1%, p<0.0001) but not in the Birmingham surgical ward (nurses: 42.6% versus 43.4%, p=0.89; surgeons: 39.6% versus 48.4%, p=0.187). Handwashing on removal of gloves was extremely low (1.7% to 16.6%), regardless of city, specialties or clinical staff.

Conclusion: The pattern of post-contact compliance and non-compliance associated with glove use strongly suggests hand hygiene practice in both countries is primarily self-protective rather than a patient safety centred practice.

Improved hand hygiene compliance after eliminating mandatory glove use from contact precautions-Is less more?

BACKGROUND

Guidelines recommend that health care personnel (HCP) wear gloves for all interactions with patients on contact precautions. We aimed to assess hand hygiene (HH) compliance during contact precautions before and after eliminating mandatory glove use.

METHODS

We assessed HH compliance of HCP in the care of patients on contact precautions in 50 series before (2009) and 6 months after (2012) eliminating mandatory glove use and compared these results with the hospital-wide HH compliance.

RESULTS

We assessed 426 HH indications before and 492 indications after the policy change. Compared with 2009, we observed a significantly higher HH compliance in patients on contact precautions in 2012 (52%; 95% confidence interval [95% CI], 47-57) vs 85%; 95% CI, 82-88; P < .001). During the same period, hospital-wide HH compliance also increased from 63% (95% CI, 61-65) to 81% (95% CI 80-83) (P < .001). However, the relative improvement (RI) of HH compliance during contact precautions was significantly higher than the hospital-wide relative improvement (RI, 1.6; 95% CI, 1.49-1.81 vs 1.29; 95% CI, 1.25-1.34), with a relative improvement ratio of 1.27 (95% CI, 1.15-1.41).

CONCLUSION

Eliminating mandatory glove use in the care of patients on contact precautions increased HH compliance in our institution, particularly before invasive procedures and before patient contacts. Further studies on the effect on pathogen transmission are needed before revisiting the current official guidelines on the topic.

Transmission of Methicillin-Resistant Staphylococcus aureus (MRSA) to Healthcare Worker Gowns and Gloves During Care of Nursing Home Residents

OBJECTIVE

To estimate the frequency of methicillin-resistant Staphylococcus aureus (MRSA) transmission to gowns and gloves worn by healthcare workers (HCWs) interacting with nursing home residents to better inform infection prevention policies in this setting

DESIGN

Observational study

SETTING

Participants were recruited from 13 community-based nursing homes in Maryland and Michigan

PARTICIPANTS

Residents and HCWs from these nursing homes

METHODS

Residents were cultured for MRSA at the anterior nares and perianal or perineal skin. HCWs wore gowns and gloves during usual care activities. At the end of each activity, a research coordinator swabbed the HCW's gown and gloves.

RESULTS

A total of 403 residents were enrolled; 113 were MRSA colonized. Glove contamination was higher than gown contamination (24% vs 14% of 954 interactions; P1.0; P<.05). We also identified low-risk care activities: giving medications and performing glucose monitoring (OR<1.0; P<.05). Residents with chronic skin breakdown had significantly higher rates of gown and glove contamination.

CONCLUSIONS

MRSA transmission from MRSA-positive residents to HCW gown and gloves is substantial; high-contact activities of daily living confer the highest risk. These activities do not involve overt contact with body fluids, skin breakdown, or mucous membranes, which suggests the need to modify current standards of care involving the use of gowns and gloves in the nursing home setting.

The misuse and overuse of non-sterile gloves: application of an audit tool to define the problem

BACKGROUND

The use of non-sterile gloves (NSG) has become routine in the delivery of health care, often for procedures for which they are not required; their use may increase the risk of cross contamination and is generally not integrated into hand hygiene audit. This paper describes a small-scale application and validation of an observational audit tool devised to identify inappropriate use of NSG and potential for cross contamination.

METHODS

Two observers simultaneously observed the use of NSG during episodes of care in an acute hospital setting. The inter-rater reliability (IRR) of the audit tool was measured corrected for chance agreement using Kappa.

RESULTS

A total of 22 episodes of care using NSG were observed. In 68.6% (24/35) of procedures there was no contact with blood/body fluid; in 54.3% (19/35) NSG-use was inappropriate. The IRR was 100% for eight of 12 components of the tool. For hand hygiene before and after NSG removal it was 82% (Kappa = 0.72) and 95% (Kappa = 0.87).

CONCLUSIONS

In this small-scale application of a glove-use audit tool we demonstrated over-use and misuse of NSG and potential for cross transmission on gloved hands. The audit tool provides an effective mechanism for integrating glove use into the audit of hand hygiene behaviour.

Infection Prevention and Control in the Long-Term-Care Facility

More than 1.5 million residents reside in US nursing homes. In recent years, the acuity of illness of nursing home residents has increased. Long-term-care facility residents have a risk of developing nosocomial infection that is similar to acute-care hospital patients. A great deal of information has been published concerning infections in the long-term-care facility, and infection control programs are nearly universal.

This position paper reviews the literature on infections and infection control programs in the long-term-care facility, covering such topics as tuberculosis, bloodborne pathogens, epidemics, isolation systems, immunization, and antibiotic-resistant bacteria. Recommendations are developed for long-term-care infection control programs based on interpretation of currently available evidence. The recommendations cover the structure and function of the infection control program, including surveillance, isolation, outbreak control, resident care, and employee health. Infection control resources also are presented.

Cohort Study of Adherence to Correct Hand Antisepsis Before and After Performance of Clinical Procedures

Objective.

To investigate the rate of adherence by hospital staff members to the correct use of alcohol-based hand rub before and after performance of clinical procedures.

Design.

A cohort study conducted during the period from 2006 through 2007 and 2 cross-sectional studies conducted in 2006 and 2007.

Setting.

Århus University Hospital, Skejby, in Århus, Denmark.

Participants.

Various hospital staff members.

Methods.

Following an ongoing campaign promoting the correct use of alcohol-based hand rub, we observed rates of adherence by hospital staff to the correct use of alcohol-based hand rub. Observations were made before and after each contact with patients or patient surroundings during 5 weekdays during the period from 2006 through 2007 in 10 different hospital units. A logistic regression model was used to estimate the rate of adherence to the correct use of alcohol-based hand rub before and after performance of a clinical procedure.

Results.

A total of 496 participants were observed during 22,906 opportunities for hand hygiene (ie, 11,177 before and 11,729 after clinical procedures) that required the use of alcohol-based hand rub. The overall rates of adherence to the correct use of alcohol-based hand rub were 62.3% (6,968 ofthe 11,177 opportunities) before performance and 68.6% (8,041 ofthe 11,729 opportunities) after performance of clinical procedures. Compared with male participants, female participants were significantly better at adhering to the correct use of alcohol-based hand rub before performance (odds ratio [OR] 1.51 [95% confidence interval {CI}, 1.09–2.10]) and after performance (OR, 1.73 [95% CI, 1.27–2.36]) of clinical procedures. In general, the rate of adherence was significantly higher after the performance of clinical procedures, compared with before (OR, 1.43 [95% CI, 1.35–1.52]). For our cohort of 214 participants who were observed during 14,319 opportunities, the rates of adherence to the correct use of alcohol-based hand rub were 63.2% (4,469 of the 7,071 opportunities) before performance and 69.3% (5,021 of the 7,248 opportunities) after performance of clinical procedures, and these rates increased significantly from 2006 to 2007, except for physicians.

Conclusion.

We found a high and increasing rate of adherence to the correct use of alcohol-based hand rub before and after performance of clinical procedures following a campaign that promoted the correct use of alcohol-based hand rub. More hospital staff performed hand hygiene with alcohol-based hand rub after performance of clinical procedures, compared with before performance. Future campaigns to improve the rate of adherence to the correct use of alcohol-based hand rub ought be aware that certain groups of hospital staff (eg, male staff members) are known to exhibit a low level of adherence to the correct use of alcohol-based hand rub.

A multifactorial action plan improves hand hygiene adherence and significantly reduces central line-associated bloodstream infections

BACKGROUND

Although hand hygiene (HH) is key to reducing health care-associated infections, it is well documented that health care worker (HCW) adherence to appropriate HH protocols is relatively low.

METHODS

This was a collaborative quality improvement project with multiple interventions conducted in a 570-bed academic hospital in Columbia, MO between April 2006 and September 2012. A multimodal action plan to improve HH adherence among all HCWs was developed, addressing 4 key areas: staff education, staff accountability, hand sanitizer product selection and accessibility, and organizational culture. HH adherence and central line-associated bloodstream infection (CLABSI) rates were monitored as outcome measures.

RESULTS

The overall HH adherence rate increased from 58% in April 2006 to 98% in September 2012. The adherence rates increased among all hospital units and among all HCW categories; in September 2012, HH adherence was 96% for physicians, 99% for nursing staff, and 99% for food services staff. CLABSI rates decreased over the same period, from 4.08 per 1000 device-days to 0.42 per 1000 device-days.

CONCLUSIONS

This multifactorial quality improvement project resulted in an institution-wide increase in HH adherence and a significant decrease in CLABSIs.

Clinical glove use: healthcare workers' actions and perceptions

BACKGROUND

The incorrect use of clinical gloves and the failure to change them between procedures increases the risk of cross-transmission. Much attention has been focused on compliance with hand hygiene.

AIM

To investigate the use of gloves, their potential for cross-contamination, and factors that influence the decision of healthcare workers (HCWs) to wear them.

METHODS

The use of gloves was observed in six wards in a single UK hospital trust. Risk of cross-contamination was defined as a violation of a 'moment of hand hygiene' during the glove-use episode. Twenty-five HCWs from the wards included in the observational audit were interviewed to identify the drivers for glove use.

FINDINGS

A total of 163 glove-use episodes were observed over a period of 13 h. Glove use was inappropriate in 69 out of 163 (42%) episodes, with gloves commonly used inappropriately for low-risk procedures (34/37; 92%). In 60 out of 163 (37%) episodes of glove use there was a risk of cross-contamination, most (48%) being associated with failure to remove gloves or with performing hand hygiene after use. HCW interviews indicated that the decision to wear gloves was influenced by both socialization and emotion. Key emotions were disgust and fear. Assumptions that patients preferred gloves to be used, confusion about when to wear them, and social norms and peer pressure were also important influences.

CONCLUSION

Glove use is associated with risk of cross-contamination and should be more explicitly integrated into hand hygiene policy. An understanding of the drivers of glove-use behaviour is required to design interventions to reduce misuse and overuse.

The time burden of alcohol-based hand cleanser when using nonsterile gloves

We quantified the time burden of alcohol-based handrub accompanying nonsterile-glove use among emergency physicians, through observation in controlled and clinical settings. We report gloving episodes per hour, gloving times with and without handrub, and handrub recommendations compliance. Handrub adds 46 seconds to each glove-use episode, and we provide national extrapolations.

Cluster randomized trial to evaluate the effect of a multimodal hand hygiene improvement strategy in primary care

OBJECTIVE

To evaluate the effectiveness of a multimodal intervention in primary care health professionals for improved compliance with hand hygiene practice, based on the World Health Organization's 5 Moments for Health Hygiene.

DESIGN

Cluster randomized trial, parallel 2-group study (intervention and control).

SETTING

Primary healthcare centers in Madrid, Spain.

PARTICIPANTS

Eleven healthcare centers with 198 healthcare workers (general practitioners, nurses, pediatricians, auxiliary nurses, midwives, odontostomatologists, and dental hygienists). Methods. The multimodal hand hygiene improvement strategy consisted of training of healthcare workers by teaching sessions, implementation of hydroalcoholic solutions, and installation of reminder posters. The hand hygiene compliance level was evaluated by observation during regular care activities in the office visit setting, at the baseline moment, and 6 months after the intervention, all by a single external observer.

RESULTS

The overall baseline compliance level was 8.1% (95% confidence interval [CI], 6.2-10.1), and the healthcare workers of the intervention group increased their hand hygiene compliance level by 21.6% (95% CI, 13.83-28.48) compared with the control group.

CONCLUSIONS

This study has demonstrated that hand hygiene compliance in primary healthcare workers can be improved with a multimodal hand hygiene improvement strategy.

Features of educational interventions that lead to compliance with hand hygiene in healthcare professionals within a hospital care setting. A BEME systematic review: BEME Guide No. 22

BACKGROUND

In the United Kingdom, there are approximately 300,000 healthcare-associated infections (HCAI) annually, costing an estimated £1 billion. Up to 30% of all HCAI are potentially preventable by better application of knowledge and adherence to infection prevention procedures. Implementation of Department of Health guidelines through educational interventions has resulted in significant and sustained improvements in hand hygiene compliance and reductions in HCAI.

AIM

To determine the features of structured educational interventions that impact on compliance with hand hygiene in healthcare professionals within a hospital care setting.

METHODS

Sixteen electronic databases were searched. Outcomes were assessed using Kirkpatrick's hierarchy and included changes in hand hygiene compliance of healthcare professionals, in service delivery and in the clinical welfare of patients involved.

RESULTS

A total of 8845 articles were reviewed, of which 30 articles met the inclusion criteria. Delivery of education was separated into six groups.

CONCLUSIONS

It was not possible to identify individual features of educational interventions due to each study reporting multicomponent interventions. However, multiple, continuous interventions were better than single interventions in terms of eliciting and sustaining behaviour change. Data were not available to determine the time, nature and type of booster sessions with feedback needed for a permanent change in compliance.

Acquisition of multidrug-resistant gram-negative bacteria: incidence and risk factors within a long-term care population

BACKGROUND AND OBJECTIVE

An improved understanding of the transmission dynamics of multidrug-resistant (MDR) gram-negative bacteria and the mechanism of acquisition in long-term care facilities (LTCFs) could aid in the development of prevention strategies specific to LTCFs. We thus investigated the incidence of acquisition of these pathogens among an LTCF population.

DESIGN

Prospective cohort study.

SETTING

Three separate wards at a 600-bed LTCF in metropolitan Boston, Massachusetts, during the period October 31, 2006, through October 22, 2007.

PARTICIPANTS

One hundred seventy-two LTCF residents.

METHODS

A series of rectal samples were cultured to determine acquisition of MDR gram-negative bacteria, defined as absence of MDR gram-negative bacterial colonization at baseline and de novo recovery of MDR gram-negative bacteria from a follow-up culture. Molecular typing was performed to identify genetically linked strains. A nested matched case-control study was performed to identify risk factors associated with acquisition.

RESULTS

Among 135 residents for whom at least 1 follow-up culture was performed, 52 (39%) acquired at least 1 MDR gram-negative organism during the study period. Thirty-two residents (62%) had not been colonized at baseline and had acquired at least 1 MDR gram-negative species at follow-up culture, and 20 residents (38%) were colonized at baseline and had acquired at least 1 MDR gram-negative species at follow-up culture. The most common coresistance pattern was resistance to extended-spectrum penicillins, ciprofloxacin, and gentamicin (57 isolates [42.5%]). Genetically related strains of MDR gram-negative bacteria were identified among multiple residents and between roommates. On conditional logistic regression analysis, antibiotic exposure during the study period was significantly associated with acquisition of MDR gram-negative bacteria (odds ratio, 5.6 [95% confidence interval, 1.1-28.7]; P = .04).

CONCLUSIONS

Acquisition of MDR gram-negative bacteria occurred frequently through resident-to-resident transmission. Existing infection control interventions need to be reevaluated.

Evaluation of Two Different Hand Hygiene Procedures during Routine Patient Care

In this study, the antimicrobial efficacy of hand washing (HW) and hand washing plus rubbing with an alcohol-based solution (HWR) on numbers of total and transient flora colonies on the hands of healthcare workers (HCWs) during routine patient care was assessed. Samples were collected, using a standard bag broth technique, from the hands of 154 HCWs, before and immediately after carrying out a hand hygiene procedure. The numbers of total and transient flora colonies per plate were counted and transient pathogens were identified. A significant statistical difference between ward speciality was detected with respect to the isolation rate of transient flora. Transient hand flora were recovered from 25.3% of HCWs before carrying out the hand hygiene procedure. With respect to the disappearance and prevention of regrowth of transient flora after hand hygiene, the HWR technique was significantly more effective than HW. In conclusion, a disinfectant should be added to the hand washing process to achieve optimum protection against nosocomial infections in routine hospital practice.

Pad per day usage, urinary incontinence and urinary tract infections in nursing home residents

BACKGROUND

many elderly suffer from urinary incontinence and use absorbent pads. Pad use per day (PPD) is a frequently used measure of urinary incontinence. Nursing home residents are often dependent on help from nursing staff to change pads. This study was performed in order to determine whether PPD is a reliable method to quantify urinary incontinence in nursing home residents. Furthermore, the association between urinary tract infections (UTIs), PPD and fluid intake was studied.

METHODS

data were retrieved from a multicentre, prospective surveillance among nursing home residents. Data on the use of absorbent pads, fluid intake and incontinence volumes were collected during 48 h. During a 1-year follow-up period, data on UTIs were collected.

RESULTS

in this study, 153 residents were included, of whom 118 (77%) used absorbent pads. Residents who used absorbent pads were at increased risk of developing UTIs compared to residents who did not use pads (41 vs 11%; P = 0.001). Daily fluid intake was not associated with UTIs (P = 0.46). The number of pad changes showed no correlation with the risk of developing UTIs (P = 0.62). Patients with a given PPD presented a wide range of incontinence volumes.

CONCLUSION

the use of absorbent pads is associated with an increased risk of developing UTIs. PPD and daily fluid intake are not correlated with the risk of developing UTIs. PPD is an unreliable measure of urinary incontinence in nursing home residents.

Educational interventions for prevention of healthcare-associated infection: a systematic review

BACKGROUND

Healthcare-associated infections (HCAIs) are associated with considerable morbidity and mortality. Education of healthcare providers is a fundamental measure to prevent HCAI.

OBJECTIVE

To perform a systematic review to determine the effect of educational strategies of healthcare providers for reducing HCAI.

DATA SOURCE

Multiple computerized databases for the years 1966 to November 1, 2006, supplemented by manual searches for relevant articles.

STUDY SELECTION

English-language controlled studies and randomized trials that included an educational intervention and provided data on the incidence of one or more kinds of HCAIs were included.

DATA EXTRACTION

Data were extracted on study design, patient population, type of intensive care unit, details of the educational intervention, target group for intervention, incidence of HCAI, duration of follow-up, and costs of intervention. Both investigators abstracted data using a standard data abstraction form; study quality was also assessed.

DATA SYNTHESIS

A total of 26 studies used a number of different educational programs targeting varied study populations of healthcare providers to determine their effect on HCAI rates. Most were pre-post intervention studies and were implemented in the intensive care setting. There was a statistically significant decrease in infection rates after intervention in 21 studies, with risk ratios ranging from 0 to 0.79. The beneficial effect of education was apparent in teaching and nonteaching institutions and in lesser-developed countries and developed nations.

LIMITATIONS

Only English language studies were included. Because of the study designs and limitations of the individual studies, a causal association between educational interventions and reduced HCAI rates cannot be made.

CONCLUSIONS

The implementation of educational interventions may reduce HCAI considerably. Cluster randomized trials using validated educational interventions and costing methods are recommended to determine the independent effect of education on reducing HCAI and the cost-savings that may be realized with this approach.

Indwelling device use and antibiotic resistance in nursing homes: identifying a high-risk group

OBJECTIVES

To quantify the relationship between indwelling devices (urinary catheters, feeding tubes, and peripherally inserted central catheters) and carriage of antimicrobial-resistant pathogens in nursing home residents.

DESIGN

Cross-sectional.

SETTING

Community nursing home in Southeast Michigan.

PARTICIPANTS

Residents with indwelling devices (n=100) and randomly selected control residents (n=100) in 14 nursing homes.

MEASUREMENTS

Data on age, functional status, and Charlson comorbidity score were collected. Samples were obtained from nares, oropharynx, groin, wounds, perianal area, and enteral feeding tube site. Standard microbiological methods were used to identify methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant enterococci (VRE), and ceftazidime-resistant (CTZ-R) gram-negative bacteria (GNB).

RESULTS

Use of indwelling devices was associated with colonization with MRSA at any site (odds ratio (OR)=2.0, P=.04), groin (OR=4.8, P=.006), and perianal area (OR=3.6, P=.01) and CTZ-R GNB at any site (OR=5.6, P=.003). Use of enteral feeding tubes was associated with MRSA colonization in the oropharynx (OR=3.3, P=.02).

CONCLUSION

Use of indwelling devices is associated with greater colonization with antimicrobial-resistant pathogens. This study serves as an initial step in defining a high-risk group that merits intensive infection control efforts.

Grado de cumplimiento y determinantes de las recomendaciones sobre la higiene de manos

INTRODUCTION

A basic indicator for assessing a program aimed at improving hand hygiene (HH) is the degree of compliance with the recommendations established for this purpose. The aim of this study is to investigate this indicator and related determinant factors in a general hospital.

METHODS

We performed 166 observation periods of one hour's duration, distributed over three work shifts and covering all the hospitalization units; 3957 HH opportunities were recorded. Variables associated with the observation period, the professionals involved and the medical activity taking place were also recorded. The Chi-square test, and calculation of the raw OR and the adjusted OR with a logistic regression model were used to study associations between the variables studied and failure to perform HH.

RESULTS

The overall frequency of HH activity was 30%, ranging from 8.9% to 60.5% depending on the professional tasks involved. The most important independent risk factors for failure to perform HH were the following: no availability of alcohol in a pocket size bottle (OR: 2.3 [1.7-3.3]); medical activities carried out in the surgical unit (OR: 2.6 [2.0-3.3]); activities taking place before entering into contact with patients (OR: 3.2 [2.4-4.2]); and use of gloves during the activity (OR: 2.2 [1.6-3.2]).

CONCLUSION

The frequency of HH is low, but there are several potentially modifiable factors involved, which could improve with interventions. One example might be better education of hospital personnel on the importance of HH.

Ventilator associated pneumonia and infection control

Ventilator associated pneumonia (VAP) is the leading cause of morbidity and mortality in intensive care units. The incidence of VAP varies from 7% to 70% in different studies and the mortality rates are 20-75% according to the study population. Aspiration of colonized pathogenic microorganisms on the oropharynx and gastrointestinal tract is the main route for the development of VAP. On the other hand, the major risk factor for VAP is intubation and the duration of mechanical ventilation. Diagnosis remains difficult, and studies showed the importance of early initiation of appropriate antibiotic for prognosis. VAP causes extra length of stay in hospital and intensive care units and increases hospital cost. Consequently, infection control policies are more rational and will save money.

Compliance with hand hygiene and glove use in a university-affiliated hospital

OBJECTIVE

The hands of healthcare workers often transmit pathogens causing nosocomial infections. This study examined compliance with handwashing and glove use.

SETTING

A university-affiliated hospital.

DESIGN

Compliance was observed covertly. Healthcare workers' demographics, hand hygiene facilities, indications for hand hygiene, compliance with handwashing and glove use in each procedure, and duration of handwashing were recorded.

RESULTS

Nine nurses and 33 assistant physicians were monitored during the study. One researcher recorded 1400 potential opportunities for handwashing during 15-minute observation periods. The mean duration of handwashing was 10 +/- 2 seconds. Most healthcare workers (99.3%) used liquid soap during handwashing, but 79.8% did not dry their hands. For all indications, compliance with handwashing was 31.9% and compliance with glove use was 58.8%. Compliance with handwashing varied inversely with both the number of indications for hand hygiene and the number of patient beds in the hospital room. Compliance with handwashing was better in dirty high-risk situations.

CONCLUSION

Compliance with handwashing was low, suggesting the need for new motivational strategies such as supplying feedback regarding compliance rates

Hand hygiene: an evidence-based review for surgeons

This review of the literature discusses the scientific evidence behind using different hand hygiene agents on the surgical ward, and in theatre for preoperative disinfection. It considers the mechanism of action of the agents and their effectiveness against different pathogens, as well as possible future agents, and how they are tested. It addresses problems such as the poor compliance with hand hygiene guidelines by healthcare workers (especially doctors) and investigates what can be done to improve compliance. Finally, it demonstrates the reduction in hospital acquired infection (HAI) rate that can be achieved by improving hand hygiene compliance, and shows that the savings associated with this easily outweigh the cost.

Decreasing hospital-associated rotavirus infection: a multidisciplinary hand hygiene campaign in a children's hospital

OBJECTIVE

Hand hygiene is an effective means of preventing hospital-associated infection, but compliance among health care workers is poor. Few studies aimed at increasing hand hygiene in the hospital setting have shown sustained improvement and concurrent decreases in hospital-associated infections, and even fewer have been performed in the pediatric setting.

METHODS

We implemented a hand hygiene program with the hopes of improving hand hygiene and decreasing hospital-associated rotavirus infection rates. A multidisciplinary group developed a hospital supported, house-wide campaign. Opportunities for hand hygiene were observed during 5 periods. The frequency of hospital-associated rotavirus infection was tracked over time by review of laboratory records. Correlates of hand hygiene were investigated with the use of multivariate logistic regression.

RESULTS

Overall hand hygiene compliance improved from 62% in period 1 to 81% in period 5 (P < 0.001). Soap and water was the most common method for practicing hand hygiene, and alcohol hand gel use increased from 4% to 29% between the first and last observation periods (P < 0.001). The rate of hospital-associated rotavirus infection decreased from 5.9 episodes per 1000 discharged patients in 2001 to 2.2 episodes per 1000 discharged patients in 2004 (P = 0.01). Period of observation, hospital ward, type of care provider and type of care performed were all independently associated with hand hygiene (adjusted P < or = 0.02 for all).

CONCLUSION

Improving hand hygiene is an important goal for health care institutions. These data can be useful for development of interventions aimed at improving hand hygiene.

Hand hygiene: simple and complex

This review gives an overview of hand hygiene in healthcare and in the community, including some aspects which have attracted little attention, such as hand drying and cultural issues determining hand hygiene behaviour. Hand hygiene is the most effective measure for interrupting the transmission of microorganisms which cause infection both in the community and in the healthcare setting. Using hand hygiene as a sole measure to reduce infection is unlikely to be successful when other factors in infection control, such as environmental hygiene, crowding, staffing levels and education are inadequate. Hand hygiene must be part of an integrated approach to infection control. Compliance with hand hygiene recommendations is poor worldwide. While the techniques involved in hand hygiene are simple, the complex interdependence of factors which determine hand hygiene behaviour makes the study of hand hygiene complex. It is now recognised that improving compliance with hand hygiene recommendations depends on altering human behaviour. Input from behavioural and social sciences is essential when designing studies to investigate compliance. Interventions to increase compliance with hand hygiene practices must be appropriate for different cultural and social needs. New strategies to promote hand hygiene worldwide include the formation of public-private partnerships.

Isolation of patients in single rooms or cohorts to reduce spread of MRSA in intensive-care units: prospective two-centre study

BACKGROUND

Hospital-acquired infection due to meticillin-resistant Staphylococcus aureus (MRSA) is common within intensive-care units. Single room or cohort isolation of infected or colonised patients is used to reduce spread, but its benefit over and above other contact precautions is not known. We aimed to assess the effectiveness of moving versus not moving infected or colonised patients in intensive-care units to prevent transmission of MRSA.

METHODS

We undertook a prospective 1-year study in the intensive-care units of two teaching hospitals. Admission and weekly screens were used to ascertain the incidence of MRSA colonisation. In the middle 6 months, MRSA-positive patients were not moved to a single room or cohort nursed unless they were carrying other multiresistant or notifiable pathogens. Standard precautions were practised throughout. Hand hygiene was encouraged and compliance audited.

FINDINGS

Patients' characteristics and MRSA acquisition rates were similar in the periods when patients were moved and not moved. The crude (unadjusted) Cox proportional-hazards model showed no evidence of increased transmission during the non-move phase (0.73 [95% CI 0.49-1.10], p=0.94 one-sided). There were no changes in transmission of any particular strain of MRSA nor in handwashing frequency between management phases.

INTERPRETATION

Moving MRSA-positive patients into single rooms or cohorted bays does not reduce crossinfection. Because transfer and isolation of critically ill patients in single rooms carries potential risks, our findings suggest that re-evaluation of isolation policies is required in intensive-care units where MRSA is endemic, and that more effective means of preventing spread of MRSA in such settings need to be found.

Epidemiologic background of hand hygiene and evaluation of the most important agents for scrubs and rubs

The etiology of nosocomial infections, the frequency of contaminated hands with the different nosocomial pathogens, and the role of health care workers' hands during outbreaks suggest that a hand hygiene preparation should at least have activity against bacteria, yeasts, and coated viruses. The importance of efficacy in choosing the right hand hygiene product is reflected in the new Centers for Disease Control and Prevention guideline on hand hygiene (J. M. Boyce and D. Pittet, Morb. Mortal. Wkly. Rep. 51:1-45, 2002). The best antimicrobial efficacy can be achieved with ethanol (60 to 85%), isopropanol (60 to 80%), and n-propanol (60 to 80%). The activity is broad and immediate. Ethanol at high concentrations (e.g., 95%) is the most effective treatment against naked viruses, whereas n-propanol seems to be more effective against the resident bacterial flora. The combination of alcohols may have a synergistic effect. The antimicrobial efficacy of chlorhexidine (2 to 4%) and triclosan (1 to 2%) is both lower and slower. Additionally, both agents have a risk of bacterial resistance, which is higher for chlorhexidine than triclosan. Their activity is often supported by the mechanical removal of pathogens during hand washing. Taking the antimicrobial efficacy and the mechanical removal together, they are still less effective than the alcohols. Plain soap and water has the lowest efficacy of all. In the new Centers for Disease Control and Prevention guideline, promotion of alcohol-based hand rubs containing various emollients instead of irritating soaps and detergents is one strategy to reduce skin damage, dryness, and irritation. Irritant contact dermatitis is highest with preparations containing 4% chlorhexidine gluconate, less frequent with nonantimicrobial soaps and preparations containing lower concentrations of chlorhexidine gluconate, and lowest with well-formulated alcohol-based hand rubs containing emollients and other skin conditioners. Too few published data from comparative trials are available to reliably rank triclosan. Personnel should be reminded that it is neither necessary nor recommended to routinely wash hands after each application of an alcohol-based hand rub. Long-lasting improvement of compliance with hand hygiene protocols can be successful if an effective and accessible alcohol-based hand rub with a proven dermal tolerance and an excellent user acceptability is supplied, accompanied by education of health care workers and promotion of the use of the product.

Increase in methicillin-resistant Staphylococcus aureus acquisition rate and change in pathogen pattern associated with an outbreak of severe acute respiratory syndrome

Background. An outbreak of severe acute respiratory syndrome (SARS) occurred in our 22-bed intensive care unit (ICU; Prince of Wales Hospital, Hong Kong, HKSAR, China) from 12 March to 31 May 2003, when only patients with SARS were admitted. This period was characterized by the upgrading of infection control precautions, which included the wearing of gloves and gowns all the time, an extensive use of steroids, and a change in antibiotic prescribing practices. The pattern of endemic pathogenic organisms, the rates of acquisition of methicillin-resistant Staphylococcus aureus (MRSA), and the rates of ventilator-associated pneumonia (VAP) were compared with those of the pre-SARS and post-SARS periods.

Methods. Data on pathogenic isolates were obtained from the microbiology department (Prince of Wales Hospital). Data on MRSA acquisition and VAP rates were collected prospectively. MRSA screening was performed for all ICU patients. A case of MRSA carriage was defined as an instance in which MRSA was recovered from any site in a patient, and cases were classified as imported or ICU-acquired if the first MRSA isolate was recovered within 72 h of ICU admission or after 72 h in the ICU, respectively.

Results. During the SARS period in the ICU, there was an increase in the rate of isolation of MRSA and Stenotrophomonas and Candida species but a disappearance of Pseudomonas and Klebsiella species. The MRSA acquisition rate was also increased: it was 3.53% (3.53 cases per 100 admissions) during the pre-SARS period, 25.30% during the SARS period, and 2.21% during the post-SARS period (P < .001). The VAP rate was high, at 36.5 episodes per 1000 ventilator-days, and 47% of episodes were caused by MRSA.

Conclusions. A SARS outbreak in the ICU led to changes in the pathogen pattern and the MRSA acquisition rate. The data suggest that MRSA cross-transmission may be increased if gloves and gowns are worn all the time.