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Updated: Nov 1, 2025

Characterization of Leukocyte-platelet Rich Fibrin, A Novel Biomaterial
Published on: September 29, 2015
Application of platelet-rich plasma in rectovaginal fistulas in the patients with ulcerative colitis
Jacek Hermann1, Jarosław Cwaliński2, Tomasz Banasiewicz2
1Department of General, and Endocrynologic Surgery, and Gastroenterologic Oncology, Poznań University of Medical Sciences, 49 Przybyszewski Str., 60-355, Poznań, Poland. jacekhermann@gmail.com.
Background:
There is a need for other than surgical methods of therapy for small and low rectovaginal fistulas (RVF) in the course of inflammatory bowel diseases (IBD), such as application of fibrin sealants, stem cells, biological therapy, or platelet-rich plasma. The aim of this study was to evaluate the results of the treatment after local application of PRP in aforementioned fistulas, exclusively in the patients with ulcerative colitis (UC).
Patients And Methods:
Medical records of 13 patients with small and low-lying, active RVF in the course of UC, and after restorative proctocolectomy for UC were evaluated. Curettage of fistulous tracts was performed with the following application of PRP in all patients.
Results:
Complete closure of RVF was achieved after the first injection in 4 patients, 3 women healed their fistulas following the second application, and two of them closed RVF after 3 injections. To sum up, the complete closure of RVF was achieved in 9 (69%) patients. Fistulas remained closed from 6 to 12 months.
Conclusions:
The application of PRP in small, low, and recurrent IBD anal fistulas is effective, simple, and safe with an acceptable rate of healing. This therapy might also precede any further, surgical methods of treatment.
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