Crosslinked hyaluronan hydrogels containing mitomycin C reduce postoperative abdominal adhesions

Area of Science:

• Biomaterials Science
• Regenerative Medicine
• Surgical Innovation

Background:

• Postoperative adhesions are a significant complication following gynecological surgery.
• Current adhesion prevention strategies have limitations.
• Hyaluronan (HA) hydrogels offer a promising platform for drug delivery and tissue repair.

Purpose of the Study:

• To evaluate the anti-adhesion efficacy of crosslinked hyaluronan (HA) hydrogels containing mitomycin C (MMC).
• To compare the effectiveness of topical HA-MMC films versus in situ injectable HA-MMC solutions in a rat uterine horn model.

Main Methods:

• Crosslinked HA hydrogel films with varying MMC concentrations (0, 0.5%, 2%) were applied to injured rat uterine horns.
• In situ crosslinkable HA-MMC solutions (0.31%, 0.625%, 1.25% MMC) were applied topically and injected intraperitoneally.
• Adhesion formation was assessed by evaluating the extent of adhesions between uterine horns and surrounding tissues.

Main Results:

• Both mitomycin C-loaded crosslinked HA films and in situ crosslinked gels significantly reduced postoperative adhesion formation.
• The anti-adhesion effect was superior to buffer controls and HA films without MMC.
• The study demonstrated dose-dependent efficacy of MMC within the HA hydrogel formulations.

Conclusions:

• Mitomycin C-loaded crosslinked HA films and gels are effective in reducing postoperative intraperitoneal adhesions.
• These HA-based drug delivery systems represent a viable strategy for adhesion prevention.
• Further research may explore clinical applications of these advanced biomaterials.