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Fistula-in-ano

  • Seung Han Kim
Chapter

Abstract

Perianal abscess can be divided into acute phase and anal fistula into chronic phase. Anal fistula is divided with the correlation between the fistula tract and the anal sphincter muscles as intersphincteric, transsphincteric, suprasphincteric, and extrasphincteric fistula. As a diagnostic tool of perianal fistula, endoanal ultrasound can be easily used in outpatient clinic, and especially 3D US is very useful as it can be used during the operation and can identify the relation to anal sphincter in 3D. The target of the treatment is to prevent recurrence by removing the primary focus in the intersphincteric space and minimizing the sphincter damage and preserving its function to maintain anal function. In addition, it is necessary to make small wound to promote fast healing. Surgical method can be classified into sphincter division or sphincter saving. The cause of recurrence is in the cases with not knowing the relation between the fistula tract and the anal sphincter or not identified primary opening and without knowing the other special causes of the anal fistula.

Keywords

Perianal fistula Classification Recurrence Crohn’s disease 

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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Seung Han Kim
    • 1
  1. 1.Colorectal Division, Department of SurgeryHansol HospitalSeoulSouth Korea

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