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Active Surveillance for Methicillin-Resistant Staphylococcus aureus(MRSA) Decreases the Incidence of MRSA Bacteremia

Part of: WILLIAM JARVIS AWARD RECIPIENTS

Published online by Cambridge University Press:  21 June 2016

Pnina Shitrit ,
Bat-Sheva Gottesman ,
Michal Katzir ,
Avi Kilman ,
Yona Ben-Nissan  and
Michal Chowers
Pnina Shitrit
Affiliation:
Infectious Diseases Unit, Meir Medical Center, Kfar Saba, Israel
Bat-Sheva Gottesman
Affiliation:
Infectious Diseases Unit, Meir Medical Center, Kfar Saba, Israel
Michal Katzir
Affiliation:
Infectious Diseases Unit, Meir Medical Center, Kfar Saba, Israel
Avi Kilman
Affiliation:
Microbiology Laboratory, Meir Medical Center, Kfar Saba, Israel
Yona Ben-Nissan
Affiliation:
Microbiology Laboratory, Meir Medical Center, Kfar Saba, Israel
Michal Chowers*
Affiliation:
Infectious Diseases Unit, Meir Medical Center, Kfar Saba, Israel Sakler Faculty of Medicine, Tel-Aviv University, Ramat-Aviv, Israel
*
Infectious Diseases Unit, Meir Medical Center, 59 Tsharnichovski, Kfar Saba, Israel44281, (chowersm@post. tau.ac.il)
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Extract

Objectives.

To evaluate the influence of performance of active surveillance cultures for methicillin-resistant Staphylococcus aureus (MRSA) on the incidence of nosocomial MRSA bacteremia in an endemic hospital.

Design.

Before-after trial.

Setting.

A 700-bed hospital.

Patients.

All patients admitted to the hospital who were at high risk for MRSA bacteremia.

Intervention.

Performance of surveillance cultures for detection of MRSA were recommended for all patients at high risk, and contact isolation was implemented for patients with positive results of culture. Each MRSA-positive patient received one course of eradication treatment. We compared the total number of surveillance cultures, the percentage of surveillance cultures with positive results, and the number of MRSA bacteremia cases before the intervention (from January 2002 through February 2003) after the start of the intervention (from July 2003 through October 2004).

Results.

The number of surveillance cultures performed increased from a mean of 272.57 cultures/month before the intervention to 865.83 cultures/month after the intervention. The percentage of surveillance cultures with positive results increased from 3.13% before to 5.22% after the intervention (P<.001). The mean number of MRSA bacteremia cases per month decreased from 3.6 cases before the intervention to 1.8 cases after the intervention (P< 0.001).

Conclusions.

Active surveillance culture is important for identifying hidden reservoirs of MRSA. Contact isolation can prevent new colonization and infection and lead to a significant reduction of morbidity and healthcare costs.

Type
Original Articles
Information
Infection Control & Hospital Epidemiology , Volume 27 , Issue 10 , October 2006 , pp. 1004 - 1008
Copyright
Copyright © The Society for Healthcare Epidemiology of America 2006

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