Treatment of Anorectal Fistula in Simple Fistula-in-Ano with Normal Anal Sphincter Function
This protocol addresses the surgical management of simple fistula-in-ano in patients who have preserved normal anal sphincter function.
Clinical Scenario
Simple fistula-in-ano is characterised by the absence of complex features. It encompasses intersphincteric and low transsphincteric fistulas that involve less than 30% of the external anal sphincter. The presence of normal anal sphincter function is a defining criterion of this presentation and directly guides the treatment approach.
Treatment Approach
For this specific presentation, the evidence-based regimen includes a surgical tissue-flap repair technique. The full structured protocol — including the complete management pathway — is accessible via the link below.
References
DOI: 10.1097/DCR.0000000000002473
- Simple anal fistulas have none of these complex features and, in general, include intersphincteric and low transsphincteric fistulas that involve less than 30% of the external sphincter.
- Patients with a simple fistula-in-ano and normal anal sphincter function may be treated with lay-open fistulotomy.
- Fistula-in-ano may be treated with endorectal advancement flap.
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