|
CorrectCare
Hand Hygiene: Can We
Learn a Lesson From the OR?
By Peter Graves, RN, BSN, CNOR
|
The Science of
Hand Hygiene
Persistence:
The ability of the antimicrobial agent to continue
to inhibit the regrowth of bacteria after the
initial application period.
Cumulative effect:
A progressive decrease in the numbers of
microorganisms recovered after repeated application
of an antimicrobial agent.
Residual kill: The ability of the active
agent to continue killing bacteria after the
application is complete. Typically measured in
hours. |
Multidrug-resistant
pathogens such as methicillin-resistant Staphylococcus aureus
have become alarmingly common in correctional facilities.
Clostridium difficile looms as a potential threat, while
others could be lurking in the wings. The risk of transmission
and exposure may extend well beyond correctional workers and
inmates. Bacteria can be brought home on the hands and clothing
of the correctional health care worker, by visitors and by
inmates upon release or transfer.
The Centers for
Disease Control and Prevention states that the single most
important method to reduce the risk of cross-contamination and
infection is good hand hygiene. Proper hygiene interrupts the
chain of infection and reduces the potential for transmission of
infectious agents from the hands of a health care worker. One
can never render the skin sterile, but proper hygiene can reduce
bacterial counts.
On first glance
it seems quite simple, but routine proper performance of hand
hygiene is no easy task. In hospitals, where antimicrobial soap,
water and waterless hand antiseptics are readily available, hand
hygiene compliance has been reported to be surprisingly low. One
study found only 48% compliance in a university teaching
hospital.
Correctional
facilities face even greater impediments, including physical
barriers, security and lack of washing facilities. Yet, proper
hand hygiene in correctional settings is vital to preventing
infections. It must be the cornerstone of every facility’s
infection control plan.
So the
questions that beg asking in corrections are:
• Does hand hygiene occur with adequate frequency?
• Do the chosen hand hygiene agents have the qualities necessary
to disinfect correctional health care providers’ hands?
Back to
Basics
To better understand why hand hygiene is so important, we
must understand some of the basics, starting with the skin.
Skin is our
largest organ and serves many roles, one of which is protection.
The outer layer is called the stratum corneum. It consists of
several layers of cells, layered like loose stonework, which
provides an ideal structure and location for bacteria, often
called colonizing bacteria, to reside and reproduce.
Bacteria on the
skin are classified as either transient or resident. Transient
bacteria, such as S. aureus, exist on the surface and are more
easily removed or killed with hand hygiene. Resident bacteria
reside in the deeper layers and are difficult to remove. Soap
(plain or antimicrobial), water and a friction source (e.g.,
opposing hand) or a waterless antiseptic (alcohol or a
combination of alcohol plus an active agent) hand rub are used
to remove and/or kill the transient bacteria and as many
resident bacteria as possible.
Germs can be
passed between people and objects by direct and indirect
contact. Hands can become contaminated with bacteria, viruses
and soils during normal activities such as unlocking doors or
typing on a keyboard, as well as physical contact.
A recent study
found that for every 1,000 hospital admissions, 46 patients were
infected or colonized with MRSA. This rate is about 10 times
greater than previous findings. Are correctional facilities
cleaner than hospitals? Anecdotal data indicates that the MRSA
infection/colonization rate among inmates probably exceeds that
in hospitals.
Clearly, it is
important to break the chain of infection. When an opportunity
for hand hygiene is missed or it is done improperly, bacteria
and soils can be left on the skin. All it takes is a break in
the skin for those germs to penetrate the body’s protective
system. They only need an opportunity to cause an infection or
to be transferred.
Simple
Prevention
Routinely washing the hands when gloves are removed or when
hands become soiled will increase hand hygiene frequency
compared with the current norm. The Association of Professionals
in Infection Control and Epidemiology states that gloves should
not be a substitute for hand washing.
There are
several cleansing agents from which to choose. One obvious
choice is plain soap and water. This is recommended when hands
are visibly soiled and when persistence and cumulative effect
are not important. When the stakes are higher, additional active
agents should be considered.
One of the most
important ways we can prevent health-care-associated infections
is to choose and use hand hygiene products wisely. The
Association of periOperative Registered Nurses recommends that
hand antiseptics used in surgery be broad spectrum, fast acting,
nonirritating and have a residual effect. While most hand
hygiene agents do not garner as much attention as surgical
antiseptics, it is important to learn the lessons of their use.
In correctional
health care, the ideal agent is one that has persistence,
cumulative effect and residual kill against bacteria (see box
above). These qualities are critical to reducing and keeping
bacterial counts in check. The product also should enhance the
skin’s natural protection.
Persistence can
inhibit regrowth of bacteria even after the hands are dry and
while gloves are worn. Cumulative effect means that when an
antimicrobial agent is used repeatedly over time, the bacterial
count is progressively reduced. By the end of the workweek, the
count will be lower than at the start. This reduction may help
enhance the skin’s natural ability to defend against transient
bacteria.
Look for a
product that has of all these attributes, plus the ability to
kill microbes residually. Residual kill is often the missing
element by which a product gives added protection long after
use.
Workers in
high-risk environments, such as correctional facilities, also
should seek antimicrobial agents with a broad spectrum of
activity. A broad-spectrum agent will kill a wide array of
microorganisms.
Compliance
Is Essential
When should one perform hand hygiene in correctional
facilities? In a word, frequently! The longer answer is whenever
there is contact with a potentially contaminated individual or
surface. But does this really happen? Unfortunately, it does
not. To increase compliance, there must be a greater focus on
education and performance of all staff in the health care
setting.
Understandably,
access to hand washing facilities can be difficult in
correctional settings. Furthermore, the use of waterless,
alcohol-based agents may be restricted facilitywide due to
safety, health and inmate welfare concerns. But hand wipes with
a combination of alcohol and CHG (chlorhexidine gluconate) could
be individually dispensed and used by health and corrections
staff in situations where access and security issues are
barriers (e.g., towers, corridors, exercise areas).
Correctional
facilities should evaluate hand hygiene antiseptic agents for
their persistence, acceptability to staff, dispenser system,
portability, etc. While cost cannot be ignored, it should not be
the primary factor. The goal is not to save money by buying less
expensive products; it is for all staff to increase compliance
by using them frequently due to good end-user acceptance.
In the long
term, programs that reduce infection rates may pay for
themselves by reducing medical expenses and employee down time.
Ponder the treatment costs for one MRSA infection. Prevention of
one infection would likely more than offset the cost of hand
hygiene.
Education
about and selection of products ideally suited for high-risk
environments are the keys to reducing infections. Recognizing
the avoidable risk and taking action is essential. We must go
back to basics: Everyone should be washing and degerming their
hands. It works in the operating room; let’s give it a try in
corrections.—
About the author: Peter
Graves, RN, BSN, CNOR, is a senior clinical nurse consultant
with Mölnlycke Health Care US, Norcross, GA. Reach him by e-mail
at peter.graves@molnlycke.com.
[This article first appeared in the
Summer 2007 issue of CorrectCare.]
|