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[The infectivity of surgical wounds]
Abstract:
A study was made of microbial contamination of wounds and wound fluid in 114 patients operated upon (clean and conditionally clean operations). Directly before suturing the subcutaneous-fatty cellular tissue no microbes were revealed in 50% of cases, but in 23% of cases potentially pathogenetic microorganisms were isolated. Potential causative agents of purulent infection were revealed in 50% of the patients on the 1st-3rd postoperative days. Suppuration developed in 3 cases only. In a number of cases there were revealed in the wound discharge such microbes which were not detected before the wound was sutured. Sometimes the presence of even numerous potentially-pathogenic microbes in the wound secretion led to no suppuration.
Insights
Microbial contamination is common in surgical wounds, with potentially pathogenic microorganisms found in half of patients post-operation. However, wound suppuration rarely develops despite microbial presence, indicating robust host defenses.
Area of Science:
- Microbiology
- Surgical Infections
- Wound Healing
Context:
- Assesses microbial contamination in surgical wounds and wound fluid.
- Examines 114 patients undergoing clean and conditionally clean operations.
- Investigates microbial presence before suturing and during the early postoperative period.
Purpose:
- To determine the prevalence and types of microbial contamination in surgical wounds.
- To correlate microbial findings with the development of postoperative suppuration.
- To understand the dynamic nature of wound microflora during healing.
Summary:
- No microbes were detected before suturing in 50% of surgical wounds.
- Potentially pathogenic microorganisms were isolated in 23% of wounds before suturing.
- Microbial contamination was present in 50% of patients by the 1st-3rd postoperative days.
- Postoperative suppuration occurred in only 3 cases, despite microbial presence in wound discharge.
- Microbes not detected initially were sometimes found in wound discharge later.
Impact:
- Highlights the low incidence of surgical site infections despite common microbial contamination.
- Suggests that the host's immune response plays a crucial role in preventing infection.
- Informs clinical practice regarding wound management and infection surveillance protocols.