Treatment of anal fistulas with Obsidian RFT®: just another autologous compound platelet-rich fibrin foam?,Techniques in Coloproctology

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Treatment of anal fistulas with Obsidian RFT®: just another autologous compound platelet-rich fibrin foam?
Techniques in Coloproctology ( IF 2.7 ) Pub Date : 2024-08-02 , DOI: 10.1007/s10151-024-02968-6
C Dawoud ₁ , K Girgis ₁ , A Stift ₁ , F Harpain ₁ , S Riss ₁

Affiliation

Background

Sphincter-preserving techniques like autologous compound platelet-rich fibrin foam have gained popularity, offering potential for better functional outcomes in anal fistula treatment. The present study aimed to evaluate the efficacy and safety of Obsidian RFT^®.

Methods

The study conducted a retrospective analysis from January 2018 to December 2022 on patients who received anal fistula closure with Obsidian RTF^® at the Department of General Surgery, Medical University of Vienna. Clinical diagnosis, complemented by radiographic imaging, was employed to confirm inconclusive cases.

Demographic and fistula characteristics and postoperative data were collected from electronic records following STROCSS criteria.

Results

Fifteen patients received Obsidian RFT® treatment for anal fistulas. We found no intra- and postoperative complications. The median hospital stay was 3 days. After a median follow-up of 32 months, a closure rate of 53.3% was detected.

Non-significant differences were observed in various variables, yet trends emerged, indicating associations between abscess presence and non-healing fistulas. A distinct age threshold (≥ 42.7 years) served as an indicator for an inability to achieve anal fistula cure.

Conclusion

Obsidian RFT^® represents a safe, minimally invasive operative procedure. Approximately half the patients experienced healing, with better outcome in a younger population.