BACKGROUND Hand hygiene is the core element of infection prevention and control. The optimal hand-hygiene gesture, however, remains poorly defined. OBJECTIVE We aimed to evaluate the influence of hand-rubbing duration on the reduction of bacterial counts on the hands of healthcare personnel (HCP). METHODS We performed an experimental study based on the European Norm 1500. Hand rubbing was performed for 10, 15, 20, 30, 45, or 60 seconds, according to the WHO technique using 3 mL alcohol-based hand rub. Hand contamination with E. coli ATCC 10536 was followed by hand rubbing and sampling. A generalized linear mixed model with a random effect on the subject adjusted for hand size and gender was used to analyze the reduction in bacterial counts after each hand-rubbing action. In addition, hand-rubbing durations of 15 and 30 seconds were compared to assert non-inferiority (0.6 log10). RESULTS In total, 32 HCP performed 123 trials. All durations of hand rubbing led to significant reductions in bacterial counts (P<.001). Reductions achieved after 10, 15, or 20 seconds of hand rubbing were not significantly different from those obtained after 30 seconds. The mean bacterial reduction after 15 seconds of hand rubbing was 0.11 log10 lower (95% CI, -0.46 to 0.24) than after 30 seconds, demonstrating non-inferiority. CONCLUSIONS Hand rubbing for 15 seconds was not inferior to 30 seconds in reducing bacterial counts on hands under the described experimental conditions. There was no gain in reducing bacterial counts from hand rubbing longer than 30 seconds. Further studies are needed to assess the clinical significance of our findings. Infect Control Hosp Epidemiol 2017;38:547-552.

Hand Hygiene With Alcohol-Based Hand Rub: How Long Is Long Enough?

We evaluated whether the volume of alcohol-based handrub used by healthcare workers affects the residual bacterial concentration on their hands according to hand size. Bacterial reduction was significantly lower for large hands compared with small hands, which suggests a need for customizing the volume of alcohol-based handrub for hand hygiene.

Should Alcohol-Based Handrub Use Be Customized to Healthcare Workers' Hand Size?

Hands are implicated in the cross transmission of microbial pathogens and fingertips are the crux of the problem. A modified World Health Organization "How to Handrub" 6-step technique with "Fingertips First" showed greater efficacy than the standard technique in reducing fingertip contamination, potentially improving hand hygiene action quality. Infect Control Hosp Epidemiol 2017;38:230-233.

https://www.cambridge.org/core/services/aop-cambridge-core/content/view/BB3A23BD9AC25DF05B52DD9F0E4E1F41/S0899823X16002415a.pdf/div-class-title-revisiting-the-who-how-to-handrub-hand-hygiene-technique-fingertips-first-div.pdf

Revisiting the WHO "How to Handrub" Hand Hygiene Technique: Fingertips First?

Multiple aspects of hand hygiene have changed in recent years.A PubMed search was conducted to identify recent articles about hand hygiene.The COVID-19 pandemic caused temporary changes in hand hygiene compliance rates and shortages of alcohol-based hand sanitizers (ABHSs), and in marketing of some products that were ineffective or unsafe. Fortunately, ABHSs are effective against SARS-CoV-2 and other emerging pathogens including Candida auris and mpox. Proper placement, maintenance, and design of ABHS dispensers have gained additional attention. Current evidence suggests that if an adequate volume of ABHS has been applied to hands, personnel must rub their hands together for at least 15 seconds before hands feel dry (dry time), which is the primary driver of antimicrobial efficacy. Accordingly, practical methods of monitoring hand hygiene technique are needed. Direct observation of hand hygiene compliance remains a challenge in many healthcare facilities, generating increased interest in automated hand hygiene monitoring systems (AHHMSs). However, several barriers have hindered widespread adoption of AHHMSs. AHHMSs must be implemented as part of a multimodal improvement program to successfully improve hand hygiene performance rates.Remaining gaps in our understanding of hand hygiene warrant continued research into factors impacting hand hygiene practices. 

Current issues in hand hygiene.

Background:The effectiveness of alcohol-based hand rub (ABHR) is correlated with drying time, which depends on the volume applied. Evidence suggests that there is considerable variation in the amount of ABHR used by healthcare providers.Objective:We sought to identify the volume of ABHR preferred for use by nurses.Methods:A prospective observation study was performed in 8 units at a tertiary-care hospital. Nurses were provided pocket-sized ABHR bottles with caps to record each bottle opening. Nurses were instructed to use the volume of ABHR they felt was best. The average ABHR volume used per hand hygiene event was calculated using cap data and changes in bottle mass.Results:In total, 53 nurses participated and 140 nurse shifts were analyzed. The average ABHR dose was 1.09 mL. This value was greater for non-ICU nurses (1.18 mL) than ICU nurses (0.96 mL), but this difference was not significant. We detected no significant association between hand surface area and preferred average dose volume. The ABHR dose volume was 0.006 mL less per use as the number of applications per shift increased (P = .007).Conclusions:The average dose of ABHR used was similar to the dose provided by the hospital’s automated dispensers, which deliver 1.1 mL per dose. The volume of ABHR dose was inversely correlated with the number of applications of ABHR per shift and was not correlated with hand size. Further research to understand differences and drivers of ABHR volume preferences and whether automated ABHR dosing may create a risk for people with larger hands is warranted.

/pdf/nursing-preference-for-alcohol-based-hand-rub-volume-uz0cuyzku3.pdf

Nursing preference for alcohol-based hand rub volume.

Recent hand hygiene (HH) research has focused largely on adherence to defined HH indications specified in global and national guidelines. Research focused on quality of HH events has been limited. A critical variable impacting the quality of hand disinfection is the volume of alcohol-based hand rub (ABHR) applied during a single HH event (i.e. application volume or AV). It may be assumed that healthcare workers (HCWs) use AVs recommended by manufacturers; however, HCWs typically are able to control AV. Manufacturer recommendations for AV of ABHR vary based on local requirements with typical recommendations varying from 1 mL to 5 mL. To date, little data exists on actual ABHR AVs used in clinical practice.

/pdf/measuring-alcohol-based-hand-rub-volume-used-by-healthcare-1650vetnlp.pdf

Measuring alcohol-based hand rub volume used by healthcare workers in practice

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Measuring alcohol-based hand rub volume used by healthcare workers in practice