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Cluster Randomized Trial of ICU:<br />

Demonstrated non-Utility of Culture<br />

• Assessed VRE and MRSA surveillance plus<br />

enhanced barrier precautions in the ICU<br />

• 5,434 admissions to 10 intervention ICUs, and 3,705<br />

to 8 control ICUs over 6 months<br />

– Centralized, broth enriched culture used for testing<br />

• Incidence of colonization or infection with MRSA or<br />

VRE per 1000 patient-days at risk did not differ<br />

significantly (P = 0.35)<br />

• Mean (±SD) number of days from when surveillance<br />

swab obtained until it was reported was 5.2±1.4<br />

– 41% of patient days captured after reporting<br />

WC Huskins et al. NEJM 364:1407-18, 2011

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