Treatment of Surgical Site Infections

Initial Management

The primary treatment for surgical site infections is incision and drainage, with adjunctive systemic antibiotics indicated only when there are significant systemic signs of infection or specific anatomical considerations, as recommended by the Infectious Diseases Society of America 1
Suture removal plus incision and drainage should be performed as the cornerstone treatment for all surgical site infections, according to the Clinical Infectious Diseases guidelines 1, 2
Evaluate for systemic signs that would indicate need for antibiotics: temperature >38.5°C, heart rate >110 beats/minute, white blood cell count >12,000/μL, or erythema extending >5 cm from the wound edge, as suggested by the Clinical Infectious Diseases guidelines 1, 2
Gram stain and culture of purulent material are recommended to guide targeted antimicrobial therapy, though empiric treatment can be started based on likely pathogens, as recommended by the Praxis Medical Insights 2

For MSSA infections, first-generation cephalosporin (cefazolin) or antistaphylococcal penicillin is recommended, as suggested by the Clinical Infectious Diseases guidelines 1
For suspected or confirmed MRSA, vancomycin, linezolid, daptomycin, telavancin, or ceftaroline is recommended, according to the Clinical Infectious Diseases guidelines 1
Agents active against gram-negative bacteria and anaerobes are required for operations on axilla, gastrointestinal tract, perineum, or female genital tract, as recommended by the Clinical Microbiology and Infection guidelines 1, 3
Options for such operations include ceftriaxone or fluoroquinolone (ciprofloxacin/levofloxacin) plus metronidazole, or single-drug regimens like piperacillin-tazobactam or carbapenems (imipenem, meropenem, ertapenem), as suggested by the Clinical Microbiology and Infection guidelines 3, 4

A brief course of systemic antimicrobial therapy (5-7 days) is typically sufficient after adequate drainage, as recommended by the Clinical Infectious Diseases guidelines 1, 2
Longer courses may be needed for complex infections or immunocompromised patients, according to the Praxis Medical Insights 2

Identify and treat predisposing conditions such as edema, obesity, eczema, and venous insufficiency, as recommended by the Clinical Infectious Diseases guidelines 5
For patients with 3-4 episodes of infection per year despite treatment of predisposing factors, consider prophylactic antibiotics, such as oral penicillin or erythromycin twice daily for 4-52 weeks, or intramuscular benzathine penicillin every 2-4 weeks, as suggested by the Clinical Infectious Diseases guidelines 5

Administer perioperative broad-spectrum intravenous antibiotics within 60 minutes before skin incision, as recommended by the World Journal of Emergency Surgery guidelines 6
Use preoperative skin antisepsis with alcohol-based solutions or chlorhexidine for patients with alcohol allergies, according to the World Journal of Emergency Surgery guidelines 6
Consider use of fascial abdominal wound protectors, abdominal irrigation, and changing gloves and instruments before wound closure to reduce surgical site infections, as suggested by the World Journal of Emergency Surgery guidelines 6

Do not routinely administer antibiotics for uncomplicated surgical site infections after adequate drainage, as recommended by the Praxis Medical Insights 2
Avoid prolonged antibiotic courses beyond 7 days for most surgical site infections, according to the Clinical Infectious Diseases guidelines 1, 2
Do not rely solely on antibiotics without proper surgical drainage when an abscess is present, as recommended by the Clinical Infectious Diseases guidelines 1, 2