In vivo study of an antimicrobial surgical drape system.

Area of Science:

• Surgical Innovation
• Infection Control
• Materials Science

Background:

• Surgical drapes can harbor bacteria, posing a risk of surgical site infections.
• The reinforcement around the fenestration of laparotomy drapes may act as a reservoir for pathogens.

Purpose of the Study:

• To evaluate the efficacy of nonwoven laparotomy drapes with an antimicrobial agent chemically bonded to the reinforcement.
• To determine the impact of antimicrobial drapes on bacterial contamination during surgical procedures.

Main Methods:

• A double-blind clinical study involving 110 surgical cases.
• Nonwoven laparotomy drapes with antimicrobial-treated sections were used.
• Bacteria were harvested from test strips and quantified as Colony Forming Units (CFU).

Main Results:

• Antimicrobial drapes demonstrated an 84% reduction in bacterial counts compared to untreated sections.
• Common bacteria identified included Staphylococcus epidermidis, S. hominis, and Micrococcus luteus.
• The antimicrobial effect was consistent regardless of the bacterial challenge size.

Conclusions:

• The reinforcement of laparotomy drapes can serve as a pathogen reservoir.
• Covalently bonding an organosilicon quaternary ammonium antimicrobial agent to the drape reinforcement effectively reduces pathogen load.
• Antimicrobial surgical drapes represent a promising strategy for improving surgical site safety and reducing infection risk.