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Updated: Aug 15, 2026

Collecting And Measuring Wound Exudate Biochemical Mediators In Surgical Wounds
Published on: October 20, 2012
Wound infections in general surgery. A two-year prospective study in a private hospital
Abstract:
The major and minor infection rate in 1,219 surgical wounds in which infection was a possible hazard was 4.2%. For the clean group the infection rate was 1%, for the clean-contaminated 6%, for the contaminated 15% and for the dirty class 19%. The mortality was 0.8% but there were no deaths due to infection or septicaemia. The results are classified according to the kind of surgery. They reflect a two-year prospective study in a conventional operating room without special air handling systems, in a private hospital. The series is characterized by a low antibiotic use (32% of the patients), the complete absence of anastomotic leaks and a systematic change of gloves, drapes and instruments before abdominal wound closure.
Insights
Surgical wound infection rates varied by wound class, from 1% in clean cases to 19% in dirty cases, with an overall infection rate of 4.2% in this prospective study. Low antibiotic use and strict protocols contributed to minimal mortality from infection.
Area of Science:
- Surgical infection control
- Hospital epidemiology
- Prospective clinical studies
Background:
- Surgical site infections (SSIs) are a significant concern in healthcare settings.
- Understanding infection rates across different wound classifications is crucial for prevention strategies.
- Previous studies highlight the impact of surgical environment and protocols on SSIs.
Purpose of the Study:
- To prospectively evaluate surgical wound infection rates in a private hospital setting.
- To analyze infection rates based on wound classification (clean, clean-contaminated, contaminated, dirty).
- To assess the impact of specific surgical practices on infection and mortality outcomes.
Main Methods:
- A two-year prospective study involving 1,219 surgical wounds.
- Data collection on infection rates categorized by wound class.
- Analysis of mortality and specific surgical interventions, including antibiotic use and sterile technique adherence.
Main Results:
- Overall surgical wound infection rate was 4.2%.
- Infection rates by wound class: clean (1%), clean-contaminated (6%), contaminated (15%), and dirty (19%).
- Mortality rate was 0.8%, with no deaths attributed to infection or septicemia; low antibiotic use (32%) was noted.
Conclusions:
- Wound classification is a strong predictor of surgical site infection risk.
- Adherence to sterile techniques, such as systematic glove and instrument changes, may reduce infection rates.
- Effective infection control can be achieved even with limited antibiotic prophylaxis.
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