Barrier agents for adhesion prevention after gynaecological surgery

Area of Science:

• Gynecological Surgery
• Adhesion Prevention
• Medical Device Evaluation

Background:

• Pelvic adhesions can result from inflammation, endometriosis, or surgical trauma.
• Barrier agents like oxidized regenerated cellulose, polytetrafluoroethylene, and fibrin sheets are used to reduce adhesion formation during pelvic surgery.

Purpose of the Study:

• To evaluate the impact of barrier agents on pain, live birth rates, and postoperative adhesions in women of reproductive age undergoing pelvic surgery.
• To assess the efficacy of various barrier agents in preventing pelvic adhesions.

Main Methods:

• Systematic review and meta-analysis of 18 randomized controlled trials (RCTs) involving 1262 women undergoing gynecological surgery.
• Searched multiple databases and trial registries up to February 2015.
• Assessed trial eligibility, risk of bias, and extracted data using fixed effect models; evidence quality was evaluated using GRADE methods.

Main Results:

• No studies reported data on pelvic pain or live birth rates.
• Oxidized regenerated cellulose (Interceed) showed potential in reducing de novo and re-formed adhesions during laparoscopy, but evidence was of very low to low quality.
• Expanded polytetrafluoroethylene (Gore-Tex) and sodium hyaluronate with carboxymethylcellulose (Seprafilm) suggested a reduction in adhesion formation, with evidence quality ranging from low to moderate; fibrin sheet showed no benefit over no treatment.

Conclusions:

• No evidence was found regarding the effects of barrier agents on pain or fertility outcomes.
• Low-quality evidence suggests oxidized regenerated cellulose, expanded polytetrafluoroethylene, and sodium hyaluronate with carboxymethylcellulose may reduce adhesion formation, but their relative effectiveness is inconclusive.
• No adverse events were directly attributed to the barrier agents, but limitations include imprecision, poor reporting, and potential publication bias.