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[Microbiological isolates associated with nosocomial infections in intensive care units: data of 274 intensive care units participating in the German Nosocomial Infections Surveillance System (KISS)].

[Article in German]

Author information

1
Nationales Referenzzentrum für Surveillance von nosokomialen Infektionen. christine.geffers@charite.de

Abstract

OBJECTIVE:

To describe the frequency and distribution of microbiological isolates in association with nosocomial infections (NI) in intensive care units (ICUs) in Germany.

METHODS:

The hospital infection surveillance system (KISS = Krankenhaus-Infektions-Surveillance-System) started in Germany in January 1997 as a nationwide surveillance project for the voluntary registration of nosocomial infections. For ICUs reporting focuses on device-associated primary bloodstream infections, urinary tract infections, as well as on pneumonia and bronchitis. The data collected for each patient who acquires a nosocomial infection include the site of infection and patient demographics. Up to 4 pathogens can be recorded for each infection.

RESULTS:

From 1997 until 2002 274 ICUs were participating. The data of 590 695 patients with 18 073 device associated infections (ventilator-associated pneumonia and bronchitis, central line-associated bloodstream infection (BSI) and urinary catheter-associated urinary tract infection (UTI)) were analyzed. In the group of device-associated NI S. aureus was most frequently isolated (16.5/100NI) followed by Ps. aeruginosa (14.2/100NI), E. coli (13.9/100NI), enterococci (13.4/100NI) and C. albicans (11.2/100NI). Of all S. aureus isolates 20.0 % were MRSA. There was an increase of the MRSA rate from 8 % in 1997 to 26.9 % in 2002. The most frequent pathogen in BSI was coagulase-negative staphylococcus (31.0/100NI). In ventilator-associated pneumonia and bronchitis S. aureus was the most frequent pathogen (24.2 and 24.9/100NI). In more than half of all catheter-associated UTI E. coli (25.7/100NI) and enterococci (25.4/100NI) were found. After stratification for the type of ICU differences in the distribution of pathogens could be shown.

CONCLUSIONS:

The KISS data give an overview of the most important pathogens associated with nosocomial infections on ICUs in Germany.

PMID:
14740311
DOI:
10.1055/s-2004-815713
[Indexed for MEDLINE]

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