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  • Title: Cutaneous advancement flap closure: alternative method for treatment of complicated anal fistulas.
    Author: Robertson WG, Mangione JS.
    Journal: Dis Colon Rectum; 1998 Jul; 41(7):884-6; discussion 886-7. PubMed ID: 9678374.
    Abstract:
    PURPOSE: A retrospective chart review of 20 consecutive patients with 23 anal fistulas treated with cutaneous advancement flap closure was undertaken to ascertain the efficacy of this previously unreported technique. METHODS: The so-called "diamond" and "house" flaps are commonly used to treat anal stenosis, and mucosal advancement flaps are successfully used to close fistulas. The authors began, in 1994, to close selected fistulas with skin advancement flaps after suture closure of the internal opening and adequate drainage of the external opening. Fourteen patients (4 females; average age, 42 years; a total of 14 fistulas) without inflammatory bowel disease and 6 patients (3 females; average age, 35 years) with inflammatory bowel disease (5 with Crohn's disease; 1 with chronic ulcerative colitis; a total of 8 fistulas) were treated. Indications were low internal opening with transsphincteric fistula in both groups. Mucosal advancement was relatively contraindicated, either because of fear of ectropion or, in the inflammatory bowel disease patients, diseased mucosa. No one in the noninflammatory bowel disease group was diverted or kept without anything by mouth, and all were treated as outpatients or with overnight observation. The inflammatory bowel disease group was either diverted (1 patient) or kept on home total parenteral nutrition (5 patients) for three to six weeks. Cyclosporine, antibiotics, 5-acetylsalicylic acid, and other medications were used judiciously in the inflammatory bowel disease group. RESULTS: In the noninflammatory bowel disease group, complete healing of all wounds occurred in 11 patients in an average of 6.5 weeks (average follow-up, 18 months). Complications included donor site separation in two patients and minor incontinence of flatus in one patient. In the inflammatory bowel disease group, five fistulas healed, two failed, and one patient developed a new fistula during an average follow-up of 16 months. Deep venous thrombosis and catheter sepsis occurred in one patient in this group. There were no fatalities in either group. CONCLUSIONS: Although the numbers, especially in the inflammatory bowel disease group, are very small, the results are encouraging. This technique appears to have a place in the armamentarium of the surgeon repairing anal fistulas.
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