Single-dose antimicrobial prophylaxis in open heart surgery.

Area of Science:

• Infectious Disease
• Cardiovascular Surgery
• Pharmacology

Background:

• Surgical site infections are a significant risk following coronary artery bypass graft (CABG) surgery.
• Current prophylactic antibiotic regimens often involve multiple doses, increasing complexity and cost.
• Ceftriaxone and cefazolin are commonly used antibiotics for surgical prophylaxis.

Purpose of the Study:

• To compare the efficacy and safety of a single pre-operative dose of ceftriaxone versus multiple peri-operative doses of cefazolin for preventing infections in CABG surgery.

Main Methods:

• A comparative study involving 94 evaluable patients undergoing CABG surgery.
• Patients were randomized to receive either a single 1-gram dose of ceftriaxone or seven 1-gram doses of cefazolin.
• Infectious complications were monitored and compared between the two treatment groups.

Main Results:

• No statistically significant difference was observed in the incidence of infectious complications between the ceftriaxone and cefazolin groups.
• Ceftriaxone demonstrated a long terminal half-life of approximately 15.7 hours.
• Neither antibiotic regimen exhibited significant toxicity.

Conclusions:

• Single-dose pre-operative ceftriaxone is an effective prophylactic strategy for preventing infections in open-heart surgery.
• This single-dose approach offers potential for considerable cost savings due to reduced antibiotic administration.
• Ceftriaxone represents a viable and potentially more economical alternative for surgical prophylaxis in CABG procedures.