[Microbiological analysis of postoperative infectious complications]

Area of Science:

• Medical Microbiology
• Infectious Diseases
• Hospital Epidemiology

Background:

• Nosocomial infections are evolving, with a noted resurgence of Gram-positive bacteria.
• Coagulase-negative staphylococci, especially methicillin-resistant strains like Staphylococcus epidermidis, are increasingly significant.
• Staphylococcus epidermidis poses a particular threat to patients with medical devices and prostheses.

Purpose of the Study:

• To assess the impact of changing microbiological trends on surgical patients.
• To analyze the incidence of Gram-positive bacterial strains in postoperative septic complications over a defined period.

Main Methods:

• Retrospective analysis of 1271 specimens from surgical patients with postoperative septic complications.
• Data collected between 1980 and 1988.
• Statistical comparison of Gram-positive strain incidence between two periods (1980-1983 and 1984-1988).

Main Results:

• The incidence of Gram-positive strains in surgical infections increased from 46.8% (1980-1983) to 59.2% (1984-1988).
• This increase was statistically significant (p < 0.05).
• Highlights a shift towards Gram-positive bacteria in the etiology of surgical site infections.

Conclusions:

• A significant rise in Gram-positive bacteria, including Staphylococcus epidermidis, is occurring in nosocomial infections.
• This microbiological shift has a demonstrable impact on surgical patients, increasing the risk of postoperative septic complications.
• Continuous monitoring of bacterial trends is crucial for effective infection control and patient management.