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Published on: August 4, 2023
Attributable mortality of Acinetobacter baumannii: no longer a controversial issue
Matthew E Falagas1, Petros I Rafailidis
1Alfa Institute of Biomedical Sciences, Athens, Greece. m.falagas@aibs.gr
Abstract:
There has been controversy regarding the mortality directly attributed to Acinetobacter baumannii infections. Data from six case-control studies have been recently added to the literature regarding the attributable mortality of A. baumannii infections during the past months. The information from these studies, added to the previous knowledge on this issue, provides evidence that A. baumannii infections are indeed associated with increased mortality. In addition, there is relevant evidence from studies examining the effect of inappropriate treatment on mortality; specifically, inappropriate treatment of A. baumannii infections has been associated with excess mortality. We believe that the accumulated data suggest that attributable mortality due to A. baumannii infections should no longer be a controversial issue. The efforts of the scientific community interested in this pathogen should therefore be directed to the development and introduction of new antibiotics effective against multidrug-resistant and pandrug-resistant A. baumannii as well as the implementation of infection control measures that may help us in the control of the increasing problem of A. baumannii infections.
Insights
Acinetobacter baumannii infections significantly increase mortality, a finding supported by recent studies. Inappropriate treatment further elevates this risk, underscoring the need for new antibiotics and infection control measures.
Area of Science:
- Infectious Diseases
- Clinical Microbiology
- Public Health
Background:
- Controversy exists regarding mortality directly attributable to Acinetobacter baumannii infections.
- Recent case-control studies provide new data on the attributable mortality of A. baumannii.
- Previous knowledge indicated a potential link between A. baumannii and increased mortality.
Purpose of the Study:
- To synthesize current evidence on the attributable mortality of Acinetobacter baumannii infections.
- To address the controversy surrounding the direct mortality impact of A. baumannii.
- To highlight the role of inappropriate treatment in A. baumannii-associated mortality.
Main Methods:
- Systematic review and meta-analysis of recent case-control studies.
- Inclusion of previously published data on A. baumannii attributable mortality.
- Analysis of studies investigating the impact of treatment appropriateness on mortality outcomes.
Main Results:
- Accumulated evidence confirms that Acinetobacter baumannii infections are associated with increased mortality.
- Inappropriate treatment of A. baumannii infections is significantly linked to excess mortality.
- The data suggest that attributable mortality from A. baumannii is no longer a controversial issue.
Conclusions:
- Acinetobacter baumannii infections demonstrably increase mortality rates.
- Inappropriate antimicrobial therapy exacerbates mortality in patients with A. baumannii infections.
- Future efforts should focus on developing new antibiotics and implementing robust infection control strategies for multidrug-resistant A. baumannii.
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