Infection Control and Hospital Epidemiology· 2019Q1
Antimicrobial-resistant pathogens associated with adult healthcare-associated infections: Summary of data reported to the National Healthcare Safety Network, 2015–2017
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- 2019year
Short summary
In 2015-2017, Escherichia coli (18%), Staphylococcus aureus (12%), and Klebsiella spp (9%) were the most common pathogens in adult healthcare-associated infections (HAIs) reported to the NHSN, with significantly higher antimicrobial nonsusceptibility (%NS) in device-associated HAIs and long-term acute-care hospitals compared to surgical site infections and general hospitals, respectively.
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Key points
- Escherichia coli (18%), Staphylococcus aureus (12%), and Klebsiella spp. (9%) were the top three pathogens in adult HAIs reported to NHSN from 2015-2017.
- Antimicrobial nonsusceptibility (%NS) was significantly higher for pathogens in device-associated HAIs compared to surgical site infections.
- Pathogens from long-term acute-care hospitals showed significantly higher %NS than those from general hospital wards.
- Oncology units presented a distinct pathogen distribution compared to other healthcare settings.
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Abstract
OBJECTIVE: Describe common pathogens and antimicrobial resistance patterns for healthcare-associated infections (HAIs) that occurred during 2015-2017 and were reported to the Centers for Disease Control and Prevention's (CDC's) National Healthcare Safety Network (NHSN). METHODS: Data from central line-associated bloodstream infections (CLABSIs), catheter-associated urinary tract infections (CAUTIs), ventilator-associated events (VAEs), and surgical site infections (SSIs) were reported from acute-care hospitals, long-term acute-care hospitals, and inpatient rehabilitation facilities. This analysis included device-associated HAIs reported from adult location types, and SSIs among patients ≥18 years old. Percentages of pathogens with nonsusceptibility (%NS) to selected antimicrobials were calculated for each HAI type, location type, surgical category, and surgical wound closure technique. RESULTS: Overall, 5,626 facilities performed adult HAI surveillance during this period, most of which were general acute-care hospitals with <200 beds. Escherichia coli (18%), Staphylococcus aureus (12%), and Klebsiella spp (9%) were the 3 most frequently reported pathogens. Pathogens varied by HAI and location type, with oncology units having a distinct pathogen distribution compared to other settings. The %NS for most pathogens was significantly higher among device-associated HAIs than SSIs. In addition, pathogens from long-term acute-care hospitals had a significantly higher %NS than those from general hospital wards. CONCLUSIONS: This report provides an updated national summary of pathogen distributions and antimicrobial resistance among select HAIs and pathogens, stratified by several factors. These data underscore the importance of tracking antimicrobial resistance, particularly in vulnerable populations such as long-term acute-care hospitals and intensive care units.
The authors' abstract, as published at the source. Infection Control and Hospital Epidemiology, 2019 · DOI ↗
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Field: Critical Care and Intensive Care Medicine
Critical Care and Intensive Care MedicineMedicine