Single-dose parenteral antibiotic prophylaxis in gastrointestinal surgery

Area of Science:

• Surgical Infections
• Antibiotic Prophylaxis
• Digestive Surgery

Background:

• Surgical site infections (SSIs) are a significant complication following abdominal surgery.
• Effective antibiotic prophylaxis is crucial to minimize SSIs, particularly in procedures involving hollow viscus incision.

Purpose of the Study:

• To evaluate the prophylactic efficacy of a single peroperative intravenous dose of gentamicin alone or in combination with clindamycin.
• To assess the impact of these antibiotic regimens on wound infection rates in patients undergoing abdominal hollow viscus surgery.

Main Methods:

• Two consecutive, double-blind, prospective studies were conducted.
• Study 1: 166 patients received a single peroperative intravenous dose of gentamicin.
• Study 2: 127 patients received a single peroperative intravenous dose of gentamicin and clindamycin.

Main Results:

• Antibiotic prophylaxis demonstrated a trend towards reducing post-operative wound sepsis rates.
• The reduction in wound infection rates was more pronounced in cases of clinically contaminated interventions.
• However, this observed reduction did not achieve statistical significance.

Conclusions:

• A single peroperative parenteral antibiotic dose is not entirely satisfactory for preventing wound infections in digestive surgery.
• Further research may be needed to optimize antibiotic prophylaxis strategies for these procedures.
• The findings suggest limitations in the current approach to SSI prevention in this patient population.