and hygiene and the use of personal protective
equipment (PPE) are well-recognized as the essential barrier precautions
required to prevent health care worker (HCW) exposure to blood and body
fluids and patient-to-patient transmission. The Centers for Disease Control
and Prevention’s (CDC) 2007 Guideline for Isolation Precautions:
Preventing Transmission of Infectious Agents in Health Care Settings
reaffirmed Standard and Transmission-based Precautions as the "foundation
for preventing transmission of infectious agents in all health care
settings."1 Unfortunately, similar to what has been reported with
hand hygiene, consistent, appropriate use of PPE by HCWs has been suboptimal
in many observational reports and studies.2-4
For example, during cardiopulmonary resuscitation – a situation
considered high risk for blood and body fluid exposure and under Standard
Precautions calls for the presumptive wearing of gloves, gowns, masks and
eye protection5,6 – the percentage of staff wearing these items was noted in
one study to be 75%, 20%, 90% and 50% respectively.2 Considering
the potential consequences that these breaches in barrier precautions may
pose to clinicians, patients and institutions, it is essential to understand
what obstacles to compliance may be present in the healthcare setting and
how to overcome them.
Hard habits to break
Even in a situation of heightened infection transmission awareness such
as the 2002-2003 severe acute respiratory syndrome (SARS) outbreak in
Toronto, compliance with barrier precautions remained problematic.4,7
In reviewing exposures which resulted in at least 17 HCW infections and one
death, when Standard Precautions should have been used (i.e., during high
risk procedures or settings), 73% occurred when Standard Precautions were
not used at all and 10% when Standard Precautions were only partially used.
An additional 17% of HCW exposures occurred when Transmission-based
Precautions should have been implemented (i.e., patients were
known/suspected to be infected with SARS) but barrier precautions were
either not used or only partially used.8 Observations conducted six weeks
into the Toronto outbreak noted rates of Standard Precautions compliance at
54% and Transmission-based Precautions compliance at 82%. Of the 15 SARS-infected
HCWs interviewed, all reported high risk exposures with known/suspected SARS
patients and frequent lapses in hand hygiene after PPE removal as well as
contaminating themselves (face and clothing) with dirty gloves or while
removing PPE.7 Additional breaches in Standard Precautions and
Transmission-based Precautions included not changing PPE between patients
and reusing clinical equipment without cleaning after use on a
known/suspected SARS patient.4
Lessons from SARS
It is difficult to imagine a scenario that could engender greater HCW
compliance with barrier precautions use than the highly publicized and
frighteningly lethal SARS epidemic, so it may be instructive to review the
factors identified which contributed to the breakdown in infection
prevention and control practices that put these clinicians, their co-workers
and their patients at risk for serious illness and possible death. Notably,
only 60% of the infected HCWs interviewed reported having received formal
infection prevention and control training and most of them were unclear
about PPE donning and doffing procedures and sequence, which were viewed as
time-consuming and complicated.4 This level of knowledge may actually be
higher than the norm considering a 2002 report noting that only 7% of U.S.
medical students rotating through emergency medicine training had been
taught about barrier precautions9 and a 2005 survey which identified that
only 25% of the physicians and nurses from a large and well-regarded
teaching hospital had received official infection prevention and control
training.10
The interviewed clinicians also cited fatigue as a major contributing
factor to lapses in infection prevention and control practices, which would
be expected in an outbreak situation, but may also routinely exist in many
understaffed and turbulent intensive care units (ICUs) and medical-surgical
floors.11 Concomitantly, as noted with other hand hygiene and PPE
compliance reports, decreased Standard Precautions/Transmission-based
Precautions compliance accompanied increased patient acuity and attendant
frequency of contact.12
Breaking down the compliance barriers
Although knowing does not always equate with doing, education is an
essential, initial and ongoing component of any practice improvement
process. Ensuring that staff at every level of the clinical ladder is
adequately trained during the on-boarding process, retrained annually and as
needed on critical infection prevention and control practices requires
significant system commitment of time and other resources. One strategy that
may go a long way to making that commitment a reality is to first educate
the chief or C-suite – the administrative, medical and nursing leadership –
on the issues and implications of infection prevention and control practice
compliance and non-compliance. Predictors of Standard Precautions training
adequacy in a multi-state survey identified "management commitment to
Standard Precautions training programs, leadership support, frequency of
providing bloodborne pathogen (BBP) information and safety climate as
important institutional predictors of assessed training adequacy."13
Fatigue, the other major compliance barrier reported by the SARS staff,
could easily be regarded as an unavoidable consequence of an outbreak
situation. However, it could also be viewed as a synonym for "burn-out"14,
"excess patient work-load"15, or "staffing shortage"16, all of which are
being reported with increasing frequency as an everyday occurrence. The
global demand for physicians and nurses17 shows no signs of abating, along
with the aging of both the patient population and the clinicians caring for
them. This too is a system issue – a global, national and local healthcare
system issue – calling for effective, long-term strategies. Creative
short-term and interim ideas must be identified to deal with this human
resource reality in a healthcare environment that is also coping with
increasing patient acuity and greater demand for both patient and worker
safety.
Knowledge is power
Educating the C-suite about the relationships between staffing and
patient outcomes, the cost-benefits of adverse events avoidance and lower
staff turnover is essential to creating a top-down culture of safety and
system-wide, active, on-going compliance to best practices. There are no
easy or quick solutions to improving infection prevention and control
practices in today’s healthcare environment. The barriers to compliance are
moving targets that must receive continual attention. However, no one has
ever identified frequent, best-practices education as being too-much of a
good thing. A first step might be to see what the infection prevention and
control knowledge level is among the administrators and clinicians in your
institution; it would certainly be a step in the right direction.
Dr. Suzanne Pear is a health care epidemiologist and associate director
for infection control practices within the scientific affairs and clinical
education department of Kimberly-Clark Health Care.
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