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Author Spotlight: A Comprehensive Protocol for Acinetobacter Biofilm Quantification, Assessment, and Visualization
07:41

Author Spotlight: A Comprehensive Protocol for Acinetobacter Biofilm Quantification, Assessment, and Visualization

Published on: August 4, 2023

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Dynamics of intraoperative Klebsiella, Acinetobacter, Pseudomonas, and Enterobacter transmission

Brent Hadder1, Hetal M Patel2, Randy W Loftus1

  • 1Department of Anesthesiology, University of Iowa Hospitals and Clinics, Iowa, IA.

American Journal of Infection Control
|February 4, 2018
PubMed
Abstract

Insights

Anesthesia provider hands are reservoirs for Acinetobacter, while patients harbor Enterobacter. Understanding these pathogen reservoirs is crucial for preventing intraoperative spread and improving operating room hygiene.

Area of Science:

  • Healthcare-associated infections
  • Microbiology
  • Anesthesiology

Background:

  • Investigating the presence of Klebsiella, Acinetobacter, Pseudomonas, and Enterobacter (KAPE) pathogens in anesthesia work areas.
  • Utilizing a retrospective analysis of a randomized, prospective, and observational study across three academic medical centers.

Purpose of the Study:

  • To determine the primary reservoirs for specific Gram-negative pathogens (KAPE) within the anesthesia work area.
  • To differentiate between anesthesia provider hands and patient skin as sources for Acinetobacter and Enterobacter spp.

Main Methods:

  • Analysis of 2,682 Gram-negative isolates from anesthesia work area reservoirs in 274 operating room case pairs.
  • Inclusion of 945 isolates for detailed study, employing Chi square tests to assess associations.
  • Focus on adult patients undergoing general anesthesia.

Main Results:

  • Acinetobacter spp. were significantly more prevalent on anesthesia provider hands (RR 1.07) than on patients (RR 0.2).
  • Enterobacter spp. were more frequently isolated from patients (RR 3.34) compared to provider hands (RR 0.89).
  • Statistical significance was confirmed with corrected P-values for both pathogen distributions.

Conclusions:

  • Anesthesia provider hands serve as key reservoirs for Acinetobacter spp.
  • Patient skin surfaces are identified as primary reservoirs for Enterobacter spp.
  • Further research into multimodal interventions is recommended to control intraoperative pathogen transmission.
Keywords:
AcinetobacterEnterobacterKlebsiellaPseudomonasdynamicstransmission

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