Acinetobacter baumannii infection was decreased by the structural renovation of a medical intensive care unit
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Published on: August 4, 2023
Seong-Su Nah1, Yun-Hee Park, Joo Won Chung
1Department of Internal Medicine, Soonchunhyang University, College of Medicine, Choenan, Korea.
Purpose:
The study aimed to determine whether improvements in intensive care unit (ICU) structural environment affect the incidence of ICU-acquired infections (IAIs), particularly those caused by multidrug-resistant pathogens.
Methods:
The incidence of IAI and the number of infections caused by organisms during the 6 months immediately before ICU renovation and during the 6 months immediately after ICU renovation were compared. The observational duration was prolonged for an additional 1 year after recruiting the after-renovation data to observe if the found effect of ICU structural renovation is maintained. The relevant data were prospectively gathered.
Results:
The overall IAI incidence and distribution of infection site showed no difference in both periods. In IAI-causing pathogens, no considerable difference was found between before and after renovation, except for Acinetobacter baumannii. In comparison of the major pathogens' identification rate between the entire hospital and the renovated ICU during the study periods, only A baumannii cases in the renovated ICU significantly decreased. However, the reduction of the IAI cases by A baumannii was not sustained for more than 1 year.
Conclusions:
These results suggest that structural ICU renovations only may not improve overall IAI incidence, except for transient decrease in IAI by A baumannii.
Insights
Structural ICU renovations did not significantly reduce overall ICU-acquired infections (IAIs). While a temporary decrease in Acinetobacter baumannii infections was observed, it was not sustained long-term.
Area of Science:
- Infection Control
- Hospital Infrastructure
- Critical Care Medicine
Background:
- ICU-acquired infections (IAIs) pose a significant challenge in critical care settings.
- Multidrug-resistant pathogens are a growing concern in IAIs.
- The impact of structural environmental improvements on infection rates is not fully understood.
Purpose of the Study:
- To evaluate if ICU structural renovations influence the incidence of IAIs.
- To assess the effect of renovations on infections caused by multidrug-resistant pathogens.
Main Methods:
- A comparative observational study design was employed.
- IAI incidence was compared for 6 months before and 6 months after ICU renovation.
- Data were prospectively collected and followed for an additional year post-renovation.
Main Results:
- Overall IAI incidence and infection site distribution remained unchanged post-renovation.
- A significant decrease in Acinetobacter baumannii infections was noted in the ICU immediately after renovation.
- This reduction in A. baumannii IAIs was transient and not sustained beyond one year.
Conclusions:
- Structural ICU renovations alone may not improve overall IAI rates.
- Renovations can lead to a temporary reduction in specific pathogen-associated IAIs, such as A. baumannii.
- Long-term surveillance is necessary to confirm sustained benefits of environmental interventions.
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