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Revista argentina de cirugía

versión impresa ISSN 2250-639X


ZANONI, Gerardo F et al. Uso de prótesis biológica para el tratamiento de fístulas perianales complejas. Rev. argent. cir. [online]. 2011, vol.100, pp.29-35. ISSN 2250-639X.

Background: The treatment of complex anal fístulas is controversial. Using low-invasive treatments as an alternative to conventional surgery reduces the risk of complications and sequels. Objective: To evaluate the feasibility of the procedure and the initial results of using porcine biological prosthe-ses (PBP) for treating complex anal fístulas. Materials and Method: An observational prospective study on the use of PBP in patients with complex anal fístulas was carried out between September 2006 and April 2007. Patients with inflammatory bowel disease, simple fístulas or acute suppurative processes were excluded. Before surgical intervention, all patients were subjected to a proctological examination, endorectal ultrasound and manometry. Early postoperative follow-up was performed 7 and 15 days after surgery, and from then on patients were evaluated every 30 days. The Jorge and Wexner incontinence scale was used to assess fecal continence. Results: A total of 13 patients were evaluated, seven men and six women. The average age was 57 ± 16 years. The repaired fístulas were transsphincteric in 12 cases (92 %) and 1 patient had horseshoe fístula. The mean length of the fistulous tract was 5.1 ± 1.2 cm. The incontinence score previous surgery was 7 ± 1.2, and postsurgical incontinence was zero. One patient presented more than one fistulous tract. Three patients (23%) were treated with setons 19 weeks before the PBP surgery. No complications were registered during surgery and the morbility rate was of 23%. The prosthesis was spontaneously expelled in three patients. No cases of relapse or incontinence were registered among the patients in which (whom ?) the prosthesis remained implanted. The percent of success in closing the fistulous tract was 76.9% (10 patients). ]Conclusion: These initial results allow us to conclude that treatment with PBP is safe and efficient, and is therefore a valid alternative for the treatment of complex fístulas.

Palabras clave : Perineal fístula; Biological prosthesis.

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