Does presoaking synthetic mesh in antibiotic solution reduce mesh infections? An experimental study

Area of Science:

• Surgical Innovation
• Infectious Disease Research
• Biomaterial Science

Background:

• Prosthetic mesh infection is a significant complication following hernia repair surgery.
• Developing effective strategies to prevent mesh infection is crucial for improving patient outcomes.
• This study investigates antibiotic-soaked mesh in a relevant animal model.

Purpose of the Study:

• To evaluate the efficacy of antibiotic-soaked prosthetic mesh in preventing infection.
• To assess the impact of vancomycin presoaking on bacterial clearance and biofilm formation.
• To determine the effectiveness across different types of synthetic meshes used in ventral hernia repair.

Main Methods:

• Rats underwent ventral hernia repair using four types of synthetic meshes.
• Meshes were presoaked in saline or vancomycin solution before implantation.
• Following implantation, meshes were contaminated with methicillin-resistant Staphylococcus aureus (MRSA).
• Bacterial presence and biofilm formation were assessed 30 days post-implantation.

Main Results:

• Presoaking meshes with vancomycin significantly enhanced bacterial clearance compared to saline.
• Composite and multifilament meshes showed the most substantial improvement in MRSA clearance.
• Bacterial growth correlated with observed biofilm formation on the mesh surfaces.

Conclusions:

• Vancomycin presoaking effectively reduces MRSA bacterial burden on multifilament and composite meshes.
• This method holds potential for reducing mesh infection rates in clean-contaminated surgical cases.
• Further clinical trials in humans are recommended to validate these findings.