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KMID : 0648620110160010001
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Korean Journal of Nosocomial Infection Control
2011 Volume.16 No. 1 p.1 ~ p.12
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Korean Nosocomial Infections Surveillance System, Intensive Care Unit Module Report: Data Summary from July 2009 through June 2010
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Kwak Yee-Gyung
Cho Yong-Kyun
Kim Jin-Yong
Lee Mi-Suk
Kim Hyo-Youl
Kim Young-Keun
Park Eun-Suk
Jin Hye-Young
Kim Hong-Bin
Kim Eu-Suk
Jung Sun-Young
Eom Joong-Sik
Kim Sung-Ran
Lee Ji-Young
Hong Hae-Kyung
Sung Joo-Hon
Uh Young
Lee Yeong-Seon
Oh Hee-Bok
Kim Eui-Chong
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Abstract
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Background: In this report, we present the annual data of the intensive care unit (ICU) module of the Korean Nosocomial Infections Surveillance System (KONIS) from July 2009 through June 2010.
Methods: We performed a prospective surveillance of nosocomial urinary tract infections (UTIs), bloodstream infections (BSIs), and pneumonia (PNEU) at 116 ICUs in 63 hospitals by using KONIS. Nosocomial infection (NI) rates were calculated as the number of infections per 1,000 patient-days or device-days.
Results: We identified 3,965 NIs during the study period: 2,156 cases of UTIs (2,119 were urinary catheter- associated), 1,110 cases of BSIs (948 were central line-associated), and 699 cases of PNEU (410 were ventilator- associated). The rate of urinary catheter-associated UTIs (CAUTIs) was 4.75 cases per 1,000 device-days (95% confidence interval, 4.55-4.95), and urinary catheter utilization ratio was 0.86 (range, 0.859-0.861). The rate of central line-associated BSIs was 3.28 (range, 3.07-3.49), and the utilization ratio was 0.56 (range, 0.559-0.561). The rate of ventilator-associated PNEUs (VAPs) was 1.95 (range, 1.77-2.15), and the utilization ratio was 0.41 (range, 0.409- 0.411). Although ventilator utilization ratio was lower in the hospitals with 400-699 beds than in the hospitals with 700-899 beds and more than 900 beds, the rate of VAPs were higher in the hospitals with 400-699 beds than in hospitals with 700-899 beds and more than 900 beds. The incidence of infections due to imipenem-resistant Acinetobacter baumannii increased from 43.6% to 82.5% since July 2006.
Conclusion: The risk of acquiring VAP and CAUTI is highest in the ICUs of hospitals with 400-699 beds than that in hospitals with more beds. Imipenem-resistant A. baumannii was identified as an emerging gram-negative pathogen of nosocomial infections.
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KEYWORD
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Korean Nosocomial Infections Surveillance System, KONIS, Intensive care unit, Nosocomial infection
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