Prophylactic vancomycin versus placebo in arterial prosthetic reconstructions

Area of Science:

• Vascular Surgery
• Infectious Diseases
• Clinical Pharmacology

Background:

• Postoperative wound infections are a serious complication of vascular reconstructive surgery involving prosthetic materials caudal to the diaphragm.
• These infections can lead to severe outcomes, including limb amputation and mortality.
• Limited data exists on the efficacy of prophylactic antibiotics for these procedures, despite widespread use.

Purpose of the Study:

• To evaluate the effectiveness of vancomycin as a prophylactic antibiotic in preventing postoperative wound infections in vascular graft operations caudal to the diaphragm.
• To compare the infection rates between patients receiving vancomycin and those receiving a placebo.

Main Methods:

• A prospective, double-blind, randomized study was conducted.
• 128 patients undergoing vascular graft operations caudal to the diaphragm were included.
• Patients received either vancomycin or a placebo in an ultra-short regimen.

Main Results:

• A statistically significant reduction in wound infection rates was observed in the vancomycin group (p = 0.0008).
• The placebo group had a 21.2% infection rate, including 4.5% prosthesis infections.
• The vancomycin group experienced only a 1.6% superficial wound infection rate, with no prosthesis infections.

Conclusions:

• Ultra-short regimen vancomycin is an effective prophylactic agent against postoperative wound infections in vascular surgery below the diaphragm.
• Vancomycin significantly decreases the risk of prosthesis infections, a severe complication.
• The antibiotic demonstrated a favorable safety profile, with temporary, dose-related side effects in 7.9% of patients.