Korean J Nosocomial Infect Control.  2011 Jun;16(1):1-12.

Korean Nosocomial Infections Surveillance System, Intensive Care Unit Module Report: Data Summary from July 2009 through June 2010

Affiliations
  • 1Division of Infections Diseases, Inje University College of Medicine, Busan, Korea.
  • 2Division of Infectious Diseases, Gachon University of Medicine and Science, Incheon, Korea. karmacho@gmail.com
  • 3Division of Infectious Diseases, Kyung Hee University School of Medicine, Seoul, Korea.
  • 4Division of Infectious Diseases, Yonsei University Wonju College of Medicine, Wonju, Korea.
  • 5Division of Laboratory Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea.
  • 6Department of Infection Control, Severance Hospital, Seoul, Korea.
  • 7Infection Control Office, Ajou University Hospital, Suwon, Korea.
  • 8Division of Infectious Diseases, Seoul National University College of Medicine, Seoul, Korea.
  • 9Infection Control Office, Ewha Womans University Mokdong Hospital, Seoul, Korea.
  • 10Division of Infectious Diseases, Hallym University College of Medicine,Kangdong Sacred Heart Hospital, Seoul, Korea.
  • 11Infection Control Office, Korea University Guro Hospital, Seoul, Korea.
  • 12Infection Control Office, Seoul St. Mary's Hospital, Seoul, Korea.
  • 13Infection Control Office, Kwandong University College of Medicine Myongji Hospital, Goyang, Korea.
  • 14Department of Preventive Medicine, School of Public Health, Seoul National University, Seoul, Korea.
  • 15Korea Centers for Disease Control and Prevention, Cheongwon-gun, Korea.
  • 16Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Korea. euichong@snu.ac.kr

Abstract

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.

Keyword

Korean Nosocomial Infections Surveillance System; KONIS; Intensive care unit; Nosocomial infection

MeSH Terms

Acinetobacter baumannii
Cross Infection
Incidence
Critical Care
Intensive Care Units
Pneumonia
Urinary Catheters
Urinary Tract Infections
Ventilators, Mechanical
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