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Successful Sphincter-Sparing Surgery for All Anal Fistulas

  • Original Contributions
  • Published:
Diseases of the Colon & Rectum

Abstract

Purpose

This study was designed to evaluate the success of a sphincter-sparing treatment algorithm for patients with anal fistulas.

Methods

All patients with anal fistulas presenting to a single surgeon from 1999 to 2004 were retrospectively reviewed. Patients were treated according to a sphincter-sparing algorithm that utilized three operative approaches: subcutaneous fistulotomy, seton placement followed by fibrin glue, and/or seton placement followed by rectal advancement flap. Data analyzed included: age, gender, type of fistula, operative intervention, treatment success, and functional results.

Results

A total of 137 patients with anal fistulas were evaluated (age range, 23–74 years). Fistula etiology was cryptoglandular in 116 (85 percent), inflammatory bowel disease in 9 (7 percent), HIV in 3 (2 percent), and miscellaneous in 9 (7 percent). A subcutaneous fistulotomy was possible in 38 patients (28 percent), and all of these patients healed. The remaining 99 patients (72 percent) with transsphincteric fistulas underwent staged procedures: 89 patients (65 percent) underwent seton placement followed by fibrin glue closure (55 healed, 62 percent success rate), 9 patients had seton placement followed by flap (9 healed, 100 percent success rate), and 1 patient had seton placement alone. Of the 34 patients with fibrin glue failure, retreatment with glue was successful in 8 of 14 (57 percent success rate). The remaining 20 patients who declined glue retreatment and the 6 patients who failed glue retreatment underwent flap (26 healed, 100 percent success rate). All fistulas healed with an average of two operations per patient, and fecal continence was maintained in all patients.

Conclusions

By using staged operative procedures without any division of anal sphincter muscle, all fistulas healed with excellent functional results. A sphincter-sparing approach can successfully treat all anal fistulas.

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Authors and Affiliations

  1. Department of Surgery, Boston University School of Medicine, One Boston Medical Center Place, Boston, Massachusetts, 02118, USA

    Kelly M. Tyler M.D., Cary B. Aarons M.D. & Stephen M. Sentovich M.D.

Authors
  1. Kelly M. Tyler M.D.
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  2. Cary B. Aarons M.D.
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  3. Stephen M. Sentovich M.D.
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Correspondence to Stephen M. Sentovich M.D..

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Tyler, K.M., Aarons, C.B. & Sentovich, S.M. Successful Sphincter-Sparing Surgery for All Anal Fistulas. Dis Colon Rectum 50, 1535–1539 (2007). https://doi.org/10.1007/s10350-007-9002-9

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  • DOI: https://doi.org/10.1007/s10350-007-9002-9

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