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Institution of the
Steiros Algorithm® Dramatically Reduced Hospital-acquired
Methicillin-resistant Staphylococcus Aureus (MRSA) Rates

by Paul A. Watson, MD, MS(a), Luke R. Watson, MD(b),  and Alfonso
Torress-Cook, DrPH(b)

a = Lakeside Orthopedics, Omaha, NE
b = Pacific Hospital of Long Beach, Long Beach, CA

Paper #2099, presented at
SHEA Decennial International Conference on Healthcare-Associated Infections
March 18-22 2010

Background

    Control of hospital acquired methicillin-resistant staphylococcus aureus (MRSA) infections are imperative for
    the safety of our patients.  As infection control practitioners we strive to have the lowest hospital-acquired
    infection (HAI) rate possible for all drug resistant organisms.  An easily instituted whole hospital infection
    control algorithm which simultaneously controls all HAIs would greatly enhance patient care and lower hospital
    costs.

Objective

    This study evaluates the effects of a novel global
    environmental cleaning algorithm (Steiros Algorithm®) on
    hospital-acquired MRSA rates.

Methods

    The hospital's procedure and infection rate database was
    reviewed for all hospital acquired MRSA cases from
    October 1st, 2005 through September 30th, 2009 at one
    acute care teaching hospital.  A standardized MRSA
    surveillance program was used throughout the study
    period.  

    We calculated and compared the MRSA rate per 1000
    discharges before and after the Steiros Algorithm®  was
    instituted on January 1st, 2006.  The Center for Disease
    Control (CDC) MRSA rates were reviewed for comparison.  

    Previously published costs associated with hospital
    acquired MRSA infections of $6,916 dollars per infection
    were used for the cost estimates.

Results

    The MRSA rates went from 1.97 per 1000 discharges
    (22 / 11,174) before to 0.11 per 1000 discharges (19 /
    170,072) after institution of the Steiros Algorithm®  for a
    statistically significant drop of 94% (P<0.0001).  

    In comparison to the expected CDC reported MRSA rate of
    4.8 per 1000 discharges, the Steiros Algorithm®  reduced
    hospital acquired MRSA infections by over 97%.  Due to the
    reduction in MRSA infections, the hospital saved
    $2,282,280 over a 3 3/4 year period.

Conclusions

    We believe that the Steiros Algorithm®, a global
    environmental cleaning protocol for hospitals, is a very safe
    and effective way to reduce hospital acquired MRSA
    infections and hospital costs by eliminating bacteria from
    the hospital and patient environment.  

    In this retrospective review, the institution of the Steiros
    Infection Control Algorithm dramatically reduced the
    hospital-acquired MRSA rates and their associated costs.
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reduce hospital acquired infections