Contemporary stethoscope cleaning practices: What we haven't learned in 150 years

BACKGROUND

Stethoscopes can be microorganism reservoirs. The US Centers for Disease Control and Prevention (CDC) has published medical equipment disinfection guidelines to minimize infection transmission risk, but studies of guideline adherence have been predominately survey based, with little direct observation of disinfection practices.

METHODS

We performed an observational, cross-sectional, anonymous study of patient-provider interactions, assessing practitioners' frequency and methods of stethoscope and hand disinfection practices.

RESULTS

Stethoscopes were disinfected in 18% of 400 observed interactions, with less than 4% verified as conforming to CDC guidelines. None was disinfected before patient examinations involving open chest or abdominal wounds, as recommended by the CDC. Hands were cleaned before and after encounters 27 times (6.8%) but were not cleaned at all in 231 (58%) encounters, although gloves were worn in 197 (85.3%) of these cases.

DISCUSSION

Stethoscope disinfection is grossly overlooked, possibly jeopardizing patient safety, particularly in acute care interactions. Periodic stethoscope disinfection, although inconvenient, helps reduce bacterial contamination and may reduce health care-associated infections.

CONCLUSIONS

Stethoscopes were disinfected per CDC guidelines in less than 4% of encounters and were not disinfected at all in 82% of encounters. Although hands were rarely cleaned (6.8%) per CDC guidelines, gloves were usually worn, but no convenient stethoscope equivalent exists. Stethoscope cleanliness must be addressed.

Obstacles to the successful introduction of an electronic hand hygiene monitoring system, a cohort observational study

Background

Hand hygiene (HH) compliance remains low in many intensive care units (ICU). Technology has been suggested to improve HH compliance.We describe the introduction of an electronic HH surveillance and intervention system into the general ICU of a tertiary care teaching hospital, the obstacles to success and reasons for the system's ultimate failure and removal.

Methods

The system was based on radiofrequency transmitters in patient areas, on HH dispensers, and individual personal bracelets. The transmitters were connected to a central computer. The system was designed to detect entry and exit from patient areas and provide real time alerts of missed HH performance.A staff satisfaction questionnaire was administered followed by validation of system accuracy. Electronic data were compared to human observer data collected during defined observation periods.

Results

Data from 41 questionnaires revealed low satisfaction rate (21/41, 51%). Low system accuracy (31/41, 76%) and inconvenience (18/41, 44%) being the most frequent reasons.During 44 one hour observation periods the observer recorded more HH opportunities and performances than the electronic system (mean number of HH opportunities/hour 10.9 ± 7.6 vs 6.8 ± 6.9, p < 0.001, correlation r = 0.75, p < 0.001, and performances/hour 8.7 ± 3.9 vs 6.0 ± 3.1, p < 0.001, correlation r = 0.60, p < 0.001, respectively). Correlation between observer and HH electronic system was very low (correlation coefficient r = 0.03, p = 0.91).

Conclusions

The electronic HH system was not accepted by ICU staff principally due to inaccuracy and inconvenience. Inaccuracies were verified by direct observations. In order for an electronic HH system to succeed we suggest it must be highly accurate and comfortable to use.

Application of the Theoretical Domains Framework to identify factors that influence hand hygiene compliance in long-term care

BACKGROUND

Healthcare worker (HCW) hand hygiene compliance is key to patient safety; however, compliance is suboptimal. Nevertheless hand hygiene compliance is not well studied in the long-term care setting.

AIM

To apply a behaviour change framework, the Theoretical Domains Framework (TDF), to identify modifiable facilitators and barriers for HCW hand hygiene compliance in long-term care settings.

METHODS

HCW hand hygiene compliance facilitators and barriers were examined using a questionnaire for HCWs from long-term care homes in Ontario, Canada. The questionnaire was informed by the TDF, which is based on a synthesis of constructs from a number of relevant psychological theories of behaviour change.

FINDINGS

Barriers identified from the questionnaire aligned with the TDF domain environmental context and resources (time pressure, workload, and environmental controls). Facilitators identified from questionnaire results aligned with the TDF domains social/professional role and identity (it is what is expected of HCWs), and beliefs about consequences (risk of transmission of micro-organisms to self or others).

CONCLUSION

There are several barriers to hand hygiene compliance that persist in long-term care. A behaviour change theory-informed framework such as the TDF can be helpful to identify those barriers. This study identified several key behavioural constructs aligned with the TDF that can be targeted when developing novel hand hygiene interventions.

A content analysis of hand hygiene materials targeting elementary-age children

Millions of dollars have been spent on the design and dissemination of educational materials to improve handwashing to prevent infectious diseases. School-age children have been the focus of many of these efforts; yet little is known about the content of these materials. This study uses content analysis to examine the theoretical and motivational trends as well as the communication approach used in a sample of hand hygiene intervention materials targeting elementary-age children. Two trained coders analyzed 144 communication materials. Study results indicate that educational materials infrequently exhibit information consistent with theories of communication for behavior change, commonly use fear-based messaging, and rarely recommend using technology in the design of the interventions. Implications for future research and the design of more strategic, child-focused hand hygiene interventions are discussed.

Hand hygiene in hospitals: anatomy of a revolution

Healthcare-associated infections (HAIs) affect hundreds of millions of individuals worldwide. Performing hand hygiene is widely accepted as a key strategy of infection prevention and control (IPC) to prevent HAIs, as healthcare workers' contaminated hands are the vehicle most often implicated in the cross-transmission of pathogens in health care. Over the last 20 years, a paradigm shift has occurred in hand hygiene: the change from handwashing with soap and water to using alcohol-based hand rubs. In order to put this revolution into context and understand how such a change was able to be implemented across so many different cultures and geographic regions, it is useful to understand how the idea of hygiene in general, and hand hygiene specifically, developed. This paper aims to examine how ideas about hygiene and hand hygiene evolved from ancient to modern times, from a ubiquitous but local set of ideas to a global phenomenon. It reviews historical landmarks from the first known documented recipe for soap by the Babylon civilization to the discovery of chlorine, and significant contributions by pioneers such as Antoine Germain Labarraque, Alexander Gordon, Oliver Wendell Holmes, Ignaz Philip Semmelweis, Louis Pasteur and Joseph Lister. It recalls that handwashing with soap and water appeared in guidelines to prevent HAIs in the 1980s; describes why alcohol-based hand rub replaced this as the central tool for action within a multi-modal improvement strategy; and looks at how the World Health Organization and other committed stakeholders, governments and dedicated IPC staff are championing hand hygiene globally.

Guiding hand hygiene interventions among future healthcare workers: implications of knowledge, attitudes, and social influences

BACKGROUND

Medical students in their clinical years play an important role in healthcare delivery, yet poor levels of hand hygiene (HH) compliance in this population raise the risk for propagating nosocomial infections. To date, there has been a lack of dedicated interventions showing sustainable improvements in HH in this population.

METHODS

A multicenter, cross-sectional study was conducted among 450 medical students in their clinical years (third to fifth years). A self-administered, pre-validated questionnaire based on the World Health Organization's "Knowledge" and "Perception" questionnaires was used to explore HH knowledge, attitudes, practices, and desired interventions.

RESULTS

Self-reported HH compliance was found to be low (56.8%), and moderate HH knowledge (61.8%) was observed among all study respondents. Public university students expressed greater knowledge than students in private and semi-private universities. Superior HH practices were associated with better individual HH attitudes, positive perceived HH attitudes in other healthcare workers (HCWs), and higher HH knowledge scores. The highest-rated interventions for improving HH compliance included role-modeling by HCWs, display of "clear HH instructions," and "ensuring availability of hand sanitizers."

CONCLUSION

Our results call for a multifaceted approach to improve HH compliance among medical students, by ensuring adequate HH supplies/hand sanitizers, providing HH training in curricula, and effecting a cultural change mediated by professional modeling and open communication.

Hand hygiene compliance rates: Fact or fiction?

BACKGROUND

The mandatory national hand hygiene program requires Australian public hospitals to use direct human auditing to establish compliance rates. To establish the magnitude of the Hawthorne effect, we compared direct human audit rates with concurrent automated surveillance rates.

METHODS

A large tertiary Australian teaching hospital previously trialed automated surveillance while simultaneously performing mandatory human audits for 20 minutes daily on a medical and a surgical ward. Subtracting automated surveillance rates from human audit rates provided differences in percentage points (PPs) for each of the 3 quarterly reporting periods for 2014 and 2015.

RESULTS

Direct human audit rates for the medical ward were inflated by an average of 55 PPs in 2014 and 64 PPs in 2015, 2.8-3.1 times higher than automated surveillance rates. The rates for the surgical ward were inflated by an average of 32 PPs in 2014 and 31 PPs in 2015, 1.6 times higher than automated surveillance rates. Over the 6 mandatory reporting quarters, human audits collected an average of 255 opportunities, whereas automation collected 578 times more data, averaging 147,308 opportunities per quarter. The magnitude of the Hawthorne effect on direct human auditing was not trivial and produced highly inflated compliance rates.

CONCLUSIONS

Mandatory compliance necessitates accuracy that only automated surveillance can achieve, whereas daily hand hygiene ambassadors or reminder technology could harness clinicians' ability to hyperrespond to produce habitual compliance.

Global hand hygiene improvement progress: two surveys using the WHO Hand Hygiene Self-Assessment Framework

The World Health Organization (WHO) conducted two global surveys in 2011 and 2015 using the Hand Hygiene Self-Assessment Framework. In 2011, 2119 health facilities from 69 countries participated, and in 2015, 807 health facilities from 91 countries participated. In total, 86 facilities submitted results for both surveys; their overall score increased significantly (P<0.001) from 335.1 [standard deviation (SD) 7.5] to 374.4 (SD 90.5). In terms of WHO regions, the scores for the Eastern Mediterranean, Europe and Western Pacific regions all improved significantly (P<0.01). This represents a snapshot of the current position of global hand hygiene improvement efforts, outlining facility progress and highlighting the value of such an assessment tool.

Comparison of Two Glove-Sampling Methods to Discriminate Between Study Arms of a Hand Hygiene and Glove-Use Study

In the absence of a gold standard, we compared two glove-sampling methodologies, direct imprint and the sponge stick, to detect a difference between two arms in our study relative to total amount and presence of bacteria.

How a smiley protects health: A pilot intervention to improve hand hygiene in hospitals by activating injunctive norms through emoticons

Hand hygiene practice in hospitals is unfortunately still widely insufficient, even though it is known that transmitting pathogens via hands is the leading cause of healthcare-associated infections. Previous research has shown that improving knowledge, providing feedback on past behaviour and targeting social norms are promising approaches to improve hand hygiene practices. The present field experiment was designed to direct people on when to perform hand hygiene and prevent forgetfulness. This intervention is the first to examine the effect of inducing injunctive social norms via an emoticon-based feedback system on hand hygiene behaviour. Electronic monitoring and feedback devices were installed in hospital patient rooms on top of hand-rub dispensers, next to the doorway, for a period of 17 weeks. In the emoticon condition, screens at the devices activated whenever a person entered or exited the room. Before using the alcohol-based hand-rub dispenser, a frowny face was displayed, indicating that hand hygiene should be performed. If the dispenser was subsequently used, this picture changed to a smiley face to positively reinforce the correct behaviour. Hand hygiene behaviour in the emoticon rooms significantly outperformed the behaviour in three other tested conditions. The strong effect in this field experiment indicates that activating injunctive norms may be a promising approach to improve hand hygiene behaviour. Theoretical and practical implications of these findings are discussed.

Importance of implementation level when evaluating the effect of the Hi Five Intervention on infectious illness and illness-related absenteeism

BACKGROUND

There is limited research on the importance of implementation when evaluating the effect of hand hygiene interventions in school settings in developed countries. The aim of this study was to examine the association between an implementation index and the effect of the intervention. The Hi Five Intervention was evaluated in a 3-armed cluster randomized controlled trial involving 43 randomly selected Danish schools.

METHODS

Analyses investigating the association between implementation of the Hi Five Intervention and infectious illness days, infectious illness episodes, illness-related absenteeism, and hand hygiene were carried out in a multilevel model (school, class, and child).

RESULTS

The level of implementation was associated with hand hygiene and potentially associated with number of infectious illness days and infectious illness episodes among children. This association was not found for illness-related absenteeism.

CONCLUSIONS

Classes that succeeded in achieving a high level of implementation of the Hi Five Intervention had a lower number of infectious illness days and infectious illness episodes, suggesting that the Hi Five Intervention, if implemented adequately, may be relevant as a tool to decrease infectious illness in a Danish school setting.

Patient as a Partner in Healthcare-Associated Infection Prevention

Objectives: The objective of the study was getting to know the knowledge and attitudes towards hand hygiene (HH) among Polish patients and healthcare workers (HCWs). Methods: 459 respondents replied to the survey: 173 (37.6%) patients and 286 (62.3%) HCWs; 57 HCWs were additionally interviewed. Results: Few HCWs knew and used the “5 moments for HH” in the required situations. Both patients and HCWs rated HH of other HCWs poorly: only 75% of patients and 54% of HCWs noticed the application of HH before blood sample collection, but 1/2 of interviewed HCWs did not encounter a request for HH from a patient. According to interviews, 23 (40%) HCWs did not admonish others when they did not use HH. Seventy-five percent of patients and HCWs claimed that, in the past, in schools the toilets were poorly stocked, but the situation improved with the passage of time. Conclusions: There are barriers with resspect to treating patients as partners in HH in Polish hospitals and HCWs’ lack of compliance with the “5 moments for HH” significantly reduces patients’ safety. Practice implications: Education regarding HH should be conducted for the whole society from an early age: lack of proper supplies in school bathrooms impedes the development of positive HH habits.

Reduction of Healthcare-Associated Infections by Exceeding High Compliance with Hand Hygiene Practices

Improving hand hygiene from high to very high compliance has not been documented to decrease healthcare-associated infections. We conducted longitudinal analyses during 2013-2015 in an 853-bed hospital and observed a significantly increased hand hygiene compliance rate (p<0.001) and a significantly decreased healthcare-associated infection rate (p = 0.0066).

Attention to Infection Prevention in Medical Aesthetic Clinics

The risk of infection is a concern for all medical aesthetic industry and all providers. Steps to reduce the risk and improve patient outcomes begin with vigilance to proper aseptic technique and being less concerned about the "beauty image" to attract new patients. This article is based on the guidelines outlined in Infection Prevention and Control for Clinical Office Practice by Public Health Ontario.

Guideline Implementation: Hand Hygiene

Performing proper hand hygiene and surgical hand antisepsis is essential to reducing the rates of health care-associated infections, including surgical site infections. The updated AORN "Guideline for hand hygiene" provides guidance on hand hygiene and surgical hand antisepsis, the wearing of fingernail polish and artificial nails, proper skin care to prevent dermatitis, the wearing of jewelry, hand hygiene product selection, and quality assurance and performance improvement considerations. This article focuses on key points of the guideline to help perioperative personnel make informed decisions about hand hygiene and surgical hand antisepsis. The key points address the necessity of keeping fingernails and skin healthy, not wearing jewelry on the hands or wrists in the perioperative area, properly performing hand hygiene and surgical hand antisepsis, and involving patients and visitors in hand hygiene initiatives. Perioperative RNs should review the complete guideline for additional information and for guidance when writing and updating policies and procedures.

On the hands of patients with Clostridium difficile: A study of spore prevalence and the effect of hand hygiene on C difficile removal

The prevalence of Clostridium difficile spores was assessed in 48 observations of infected inpatients. Participants were randomized to hand hygiene with either alcohol-based handrub or soap and water. C difficile was recovered in 14.6% of pre-hand hygiene observations. It was still present on 5 of these 7 participants after hand hygiene (3/3 using alcohol-based handrub; 2/4 using soap and water).

Prospective cluster controlled crossover trial to compare the impact of an improved hydrogen peroxide disinfectant and a quaternary ammonium-based disinfectant on surface contamination and health care outcomes

BACKGROUND

Quaternary ammonium-based (Quat) disinfectants are widely used, but they have disadvantages.

METHODS

This was a 12-month prospective cluster controlled crossover trial. On 4 wards, housekeepers performed daily cleaning using a disinfectant containing either 0.5% improved hydrogen peroxide (IHP) or Quat. Each month, 5-8 high-touch surfaces in several patient rooms on each ward were tagged with a fluorescent marker and cultured before and after cleaning. Hand hygiene compliance rates and antimicrobial usage on study wards were obtained from hospital records. Outcomes included aerobic colony counts (ACCs), percent of wiped surfaces yielding no growth after cleaning, and a composite outcome of incidence densities of nosocomial acquisition and infection caused by vancomycin-resistant enterococci, methicillin-resistant Staphylococcus aureus, and Clostridium difficile infection. Statistical analysis was performed using χ² test, Fisher exact test, Welch test, and logistic regression methods.

RESULTS

Mean ACCs per surface after cleaning were significantly lower with IHP (14.0) than with Quat (22.2) (P = .003). The proportion of surfaces yielding no growth after cleaning was significantly greater with IHP (240/500; 48%) than with Quat (182/517; 35.2%) (P < .0001). Composite incidence density of nosocomial colonization or infection with IHP (8.0) was lower than with Quat (10.3) (incidence rate ratio, 0.77; P = .068; 95% confidence interval, 0.579-1.029).

CONCLUSIONS

Compared with a Quat disinfectant, the IHP disinfectant significantly reduced surface contamination and reduced a composite colonization or infection outcome.

Evaluation of infectious diseases and clinical microbiology specialists' preferences for hand hygiene: analysis using the multi-attribute utility theory and the analytic hierarchy process methods

BACKGROUND

Hand hygiene is one of the most effective attempts to control nosocomial infections, and it is an important measure to avoid the transmission of pathogens. However, the compliance of healthcare workers (HCWs) with hand washing is still poor worldwide. Herein, we aimed to determine the best hand hygiene preference of the infectious diseases and clinical microbiology (IDCM) specialists to prevent transmission of microorganisms from one patient to another.

METHODS

Expert opinions regarding the criteria that influence the best hand hygiene preference were collected through a questionnaire via face-to-face interviews. Afterwards, these opinions were examined with two widely used multi-criteria decision analysis (MCDA) methods, the Multi-Attribute Utility Theory (MAUT) and the Analytic Hierarchy Process (AHP).

RESULTS

A total of 15 IDCM specialist opinions were collected from diverse private and public hospitals located in İzmir, Turkey. The mean age of the participants was 49.73 ± 8.46, and the mean experience year of the participants in their fields was 17.67 ± 11.98. The findings that we obtained through two distinct decision making methods, the MAUT and the AHP, suggest that alcohol-based antiseptic solution (ABAS) has the highest utility (0.86) and priority (0.69) among the experts' choices.

CONCLUSION

In conclusion, the MAUT and the AHP, decision models developed here indicate that rubbing the hands with ABAS is the most favorable choice for IDCM specialists to prevent nosocomial infection.

A simplified prevention bundle with dual hand hygiene audit reduces early-onset ventilator-associated pneumonia in cardiovascular surgery units: An interrupted time-series analysis

BACKGROUND

To investigate the effect of a simplified prevention bundle with alcohol-based, dual hand hygiene (HH) audit on the incidence of early-onset ventilation-associated pneumonia (VAP).

METHODS

This 3-year, quasi-experimental study with interrupted time-series analysis was conducted in two cardiovascular surgery intensive care units in a medical center. Unaware external HH audit (eHH) performed by non-unit-based observers was a routine task before and after bundle implementation. Based on the realistic ICU settings, we implemented a 3-component bundle, which included: a compulsory education program, a knowing internal HH audit (iHH) performed by unit-based observers, and a standardized oral care (OC) protocol with 0.1% chlorhexidine gluconate. The study periods comprised 4 phases: 12-month pre-implementation phase 1 (eHH+/education-/iHH-/OC-), 3-month run-in phase 2 (eHH+/education+/iHH+/OC+), 15-month implementation phase 3 (eHH+/education+/iHH+/OC+), and 6-month post-implementation phase 4 (eHH+/education-/iHH+/OC-).

RESULTS

A total of 2553 ventilator-days were observed. VAP incidences (events/1000 ventilator days) in phase 1-4 were 39.1, 40.5, 15.9, and 20.4, respectively. VAP was significantly reduced by 59% in phase 3 (vs. phase 1, incidence rate ratio [IRR] 0.41, P = 0.002), but rebounded in phase 4. Moreover, VAP incidence was inversely correlated to compliance of OC (r2 = 0.531, P = 0.001) and eHH (r2 = 0.878, P < 0.001), but not applied for iHH, despite iHH compliance was higher than eHH compliance during phase 2 to 4. Compared to eHH, iHH provided more efficient and faster improvements for standard HH practice. The minimal compliances required for significant VAP reduction were 85% and 75% for OC and eHH (both P < 0.05, IRR 0.28 and 0.42, respectively).

CONCLUSIONS

This simplified prevention bundle effectively reduces early-onset VAP incidence. An unaware HH compliance correlates with VAP incidence. A knowing HH audit provides better improvement in HH practice. Accordingly, we suggest dual HH audit and consistent bundle performance does matter in quality-of-care VAP prevention.

Implementing an electronic hand hygiene monitoring system: Lessons learned from community hospitals

BACKGROUND

Measuring and providing feedback about hand hygiene (HH) compliance is a complicated process. Electronic HH monitoring systems have been proposed as a possible solution; however, there is little information available about how to successfully implement and maintain these systems for maximum benefit in community hospitals.

METHODS

An electronic HH monitoring system was implemented in 3 community hospitals by teams at each facility with support from the system vendor. Compliance rates were measured by the electronic monitoring system. The implementation challenges, solutions, and drivers of success were monitored within each facility.

RESULTS

The electronic HH monitoring systems tracked on average more than 220,000 compliant HH events per facility per month, with an average monthly compliance rate >85%. The sharing of best practices between facilities was valuable in addressing challenges encountered during implementation and maintaining a high rate of use.

DISCUSSION

Drivers of success included a collaborative environment, leadership commitment, using data to drive improvement, consistent and constant messaging, staff empowerment, and patient involvement.

CONCLUSIONS

Realizing the full benefit of investments in electronic HH monitoring systems requires careful consideration of implementation strategies, planning for ongoing support and maintenance, and presenting data in a meaningful way to empower and inspire staff.

Self-reported behaviors and perceptions of Australian paramedics in relation to hand hygiene and gloving practices in paramedic-led health care

BACKGROUND

Noncompliance with recommended hand hygiene and gloving practices by workers in the emergency medical services may contribute to the transmission of health care-associated infections and lead to poor patient outcomes. The aim of this study was to explore the self-reported behaviors and perceptions of Australian paramedics in relation to their hand hygiene and gloving practices in paramedic-led health care.

METHODS

A national online survey (n = 417; 17% response rate) and 2 semistructured focus groups (6 per group) were conducted with members of Paramedics Australasia.

RESULTS

Although most of the study participants perceived hand hygiene and gloving to be important, the findings suggest poor compliance with both practices, particularly during emergency cases. All participants reported wearing gloves throughout a clinical case, changing them either at the completion of patient care or when visibly soiled or broken. Hand hygiene was missed at defined moments during patient care, possibly from the misuse of gloves.

CONCLUSIONS

Paramedic hand hygiene and gloving practices require substantial improvement to lower potential transmission of pathogens and improve patient safety and clinical care. Further research is recommended to explore how to alleviate the barriers to performing in-field hand hygiene and the misuse of gloves during paramedic-led health care.

Effect of hand hygiene and glove use on cleanliness of reusable surgical instruments

BACKGROUND

During functionality testing and packaging of reusable surgical instruments (RSI) for sterilization, instruments are frequently touched. There is a lack of standards relating to hand hygiene frequency and use of gloves in the sterilizing service unit packing area.

AIM

To determine the effect of hand hygiene and glove use on maintenance of RSI cleanliness.

METHODS

Following manual and automated cleaning, Halsted-mosquito forceps were assessed for adenosine triphosphate (ATP), protein and microbial contamination after handling with gloved and ungloved but washed hands using an ATP surface swab test, bicinchoninic acid assay, and standard culture plate/broth, respectively. Gram's stain was used to classify the isolates. RSI contamination was assessed immediately following and 1, 2, and 4 h after washing hands.

FINDINGS

Packing instruments with hands that had been unwashed for 2 or 4 h resulted in a significant increase in contaminating ATP when compared with all other treatment groups (P < 0.05). There was a significant correlation between the time since washing hands, the amount of ATP (r = 0.93; P ≤ 0.001), and the microbial load (r = 0.83; P ≤ 0.001) contaminating the forceps, where the longer the time the hands remained unwashed the higher the contamination. Significantly more contaminating protein was found on forceps handled with ungloved hands that had not been washed for 2 or 4 h (P < 0.001).

CONCLUSION

Critical RSI inspection, assembling, lubricating and packing should be performed using either gloves or within 1 h of washing hands.