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Task force on management and prevention of Acinetobacter baumannii infections in the ICU
José Garnacho-Montero1, George Dimopoulos2, Garyphallia Poulakou3
1Unidad Clínica de Cuidados Intensivos, Instituto de Biomedicina de Sevilla (IBIS), Hospital Universitario Virgen del Rocío, Seville, Spain. jgarnachom@gmail.com.
Introduction:
Acinetobacter baumannii constitutes a dreadful problem in many ICUs worldwide. The very limited therapeutic options available for these organisms are a matter of great concern. No specific guidelines exist addressing the prevention and management of A. baumannii infections in the critical care setting.
Methods:
Clinical microbiologists, infectious disease specialists and intensive care physicians were invited by the Chair of the Infection Section of the ESICM to participate in a multidisciplinary expert panel. After the selection of clinically relevant questions, this document provides recommendations about the use of microbiological techniques for identification of A. baumannii in clinical laboratories, antibiotic therapy for severe infections and recommendations to control this pathogen in outbreaks and endemic situations. Evidence supporting each statement was graded according to the European Society of Clinical Microbiology and Infection Diseases (ESCMID) grading system.
Results:
Empirical coverage of A. baumannii is recommended in severe infections (severe sepsis or septic shock) occurring during an A. baumannii outbreak, in an endemic setting, or in a previously colonized patient. For these cases, a polymyxin is suggested as part of the empirical treatment in cases of a high suspicion of a carbapenem-resistant (CR) A. baumannii strain. An institutional program including staff education, promotion of hand hygiene, strict contact and isolation precautions, environmental cleaning, targeted active surveillance, and antimicrobial stewardship should be instituted and maintained to combat outbreaks and endemic situations.
Conclusions:
Specific recommendations about prevention and management of A. baumannii infections in the ICU were elaborated by this multidisciplinary panel. The paucity of randomized controlled trials is noteworthy, so these recommendations are mainly based on observational studies and pharmacodynamics modeling.
Insights
Acinetobacter baumannii infections are a critical ICU concern. New guidelines offer recommendations for prevention, management, and treatment of this multidrug-resistant pathogen.
Area of Science:
- Critical care medicine
- Infectious diseases
- Clinical microbiology
Background:
- Acinetobacter baumannii poses a significant threat in intensive care units (ICUs) globally.
- Limited therapeutic options and lack of specific guidelines exacerbate the challenge of managing A. baumannii infections.
- This necessitates expert consensus for effective prevention and treatment strategies.
Purpose of the Study:
- To develop evidence-based recommendations for the prevention and management of Acinetobacter baumannii infections in critical care settings.
- To address key aspects including microbiological identification, antibiotic therapy, and control of outbreaks and endemic situations.
- To provide guidance for clinicians facing challenges with this multidrug-resistant organism.
Main Methods:
- A multidisciplinary expert panel, including clinical microbiologists, infectious disease specialists, and intensive care physicians, was convened.
- Clinically relevant questions were identified and addressed, with evidence graded using the ESCMID system.
- Recommendations were formulated based on the available evidence, including observational studies and pharmacodynamic modeling.
Main Results:
- Empirical antibiotic coverage for A. baumannii is advised in severe infections during outbreaks, endemic settings, or in colonized patients.
- Polymyxins are suggested for empirical treatment of suspected carbapenem-resistant (CR) A. baumannii strains.
- Comprehensive institutional programs encompassing education, hygiene, surveillance, and antimicrobial stewardship are crucial for control.
Conclusions:
- Multidisciplinary expert recommendations for A. baumannii prevention and management in ICUs have been established.
- The recommendations are primarily based on observational data and modeling due to a scarcity of randomized controlled trials.
- These guidelines aim to improve patient outcomes and control the spread of A. baumannii in critical care environments.
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