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Catheter-related infections: does the spectrum of microbial causes change over time? A nationwide surveillance study.


ABSTRACT:

Objectives

To estimate the incidence and epidemiology of catheter-related bloodstream infections (CRBSIs) on a national scale by using prospective epidemiological data from the Swiss Antibiotic Resistance Surveillance System (ANRESIS).

Design

Observational study.

Setting

National surveillance from 2008 to 2015 of acute hospitals in Switzerland.

Participants

We included acute Swiss hospitals that sent blood cultures and catheter tip culture results on a regular basis during the entire study period to the ANRESIS database.

Outcome measure

A catheter-related bloodstream infection (termed 'modified CRBSI', mCRBSI) was defined as isolating the same microorganism with identical antibiogram from ?1?blood cultures (performed ±7 days around the catheter removal) as the one recovered from the catheter tip. Incidence rates of mCRBSI were calculated per 1000 admissions.

Results

From 2008 to 2015, the mCRBSI incidence rate decreased from 0.83 to 0.58 episodes/1000 admissions (-6% per year, p<0.001). Coagulase-negative staphylococci, Staphylococcus aureus and fungi all exhibited decreasing trends, while rates of enterococci and Gram-negative bacteria remained stable.

Conclusions

The overall incidence of mCRBSI in Switzerland is decreasing; however, the incidence of mCRBSI due to Enterococci and Gram-negative micro-organisms did not change over time. These pathogens may grow in importance in catheter-related infections, which would have clinical implications for the choice of empirical treatment.

SUBMITTER: Buetti N 

PROVIDER: S-EPMC6307612 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature

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Publications

Catheter-related infections: does the spectrum of microbial causes change over time? A nationwide surveillance study.

Buetti Niccolò N   Lo Priore Elia E   Atkinson Andrew A   Widmer Andreas F AF   Kronenberg Andreas A   Marschall Jonas J  

BMJ open 20181222 12


<h4>Objectives</h4>To estimate the incidence and epidemiology of catheter-related bloodstream infections (CRBSIs) on a national scale by using prospective epidemiological data from the Swiss <i>Antibiotic Resistance Surveillance System</i> (ANRESIS).<h4>Design</h4>Observational study.<h4>Setting</h4>National surveillance from 2008 to 2015 of acute hospitals in Switzerland.<h4>Participants</h4>We included acute Swiss hospitals that sent blood cultures and catheter tip culture results on a regular  ...[more]

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