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Published on: January 13, 2017
Abstract:
Accumulated evidence of the last decade has emphasized the multifaceted nature of wound infection control. Clean air is definitely one of the facets in the complex, but its place in the hierachy of precautions against wound infection has not been established, nor has the method of achieving acceptably clean air been universally agreed on. The surgical team and the patient are the prime sources of contamination during an operation, as evidenced by the good matches between bacteria of infected wounds and those of the team or the patient and by the poor matches between bacteria of infected wounds and airborne bacteria. Therefore, special air-handling systems, despite their ability to lower ambient bioparticulate counts, cannot be credited with being a highly relevant factor in the reduction of wound infection rates.
Insights
Clean air is a minor factor in preventing surgical site infections. The surgical team and patient are the primary sources of contamination, not airborne bacteria, making air-handling systems less critical for infection control.
Area of Science:
- Infection Control
- Surgical Hygiene
- Environmental Microbiology
Background:
- Wound infection control is complex, with multiple contributing factors.
- The role of clean air in preventing surgical site infections (SSIs) remains unclear.
- Existing research highlights the multifaceted nature of infection prevention strategies.
Purpose of the Study:
- To evaluate the significance of clean air in the hierarchy of wound infection control measures.
- To determine the primary sources of bacterial contamination during surgical operations.
- To assess the relevance of specialized air-handling systems in reducing wound infection rates.
Main Methods:
- Analysis of bacterial contamination sources in surgical environments.
- Comparison of bacterial profiles from infected wounds, surgical teams, patients, and airborne samples.
- Evaluation of the impact of air-handling systems on ambient bioparticulate counts.
Main Results:
- Bacterial contamination in infected wounds closely matched bacteria from the surgical team and patient.
- Poor correlation was observed between bacteria in infected wounds and airborne bacteria.
- Specialized air-handling systems reduced airborne particle counts but did not significantly impact infection rates.
Conclusions:
- The surgical team and patient are the predominant sources of wound contamination.
- Airborne bacteria play a less significant role in surgical site infections compared to direct contact.
- Specialized air-handling systems are not a highly relevant factor in reducing wound infection rates.
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