Anal fistula classification: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
|||
| Line 12: | Line 12: | ||
*Extrasphincteric | *Extrasphincteric | ||
Anal fistulas are classified into two categories based on the risk factors associated: | Anal fistulas are classified into two categories based on the risk factors associated: | ||
*Simple anal fistula: | *Simple anal fistula:<ref name="pmid8076487">{{cite journal |vauthors=Sangwan YP, Rosen L, Riether RD, Stasik JJ, Sheets JA, Khubchandani IT |title=Is simple fistula-in-ano simple? |journal=Dis. Colon Rectum |volume=37 |issue=9 |pages=885–9 |year=1994 |pmid=8076487 |doi= |url=}}</ref> | ||
**There are no risk factors associated with simple anal fistula. | **There are no risk factors associated with simple anal fistula. | ||
**Treatment of simple anal fistula results in low incidence of fecal incontinence and poor wound healing. | **Treatment of simple anal fistula results in low incidence of fecal incontinence and poor wound healing. | ||
*Complex anal fistula: | *Complex anal fistula:<ref name="pmid3298058">{{cite journal |vauthors=Fazio VW |title=Complex anal fistulae |journal=Gastroenterol. Clin. North Am. |volume=16 |issue=1 |pages=93–114 |year=1987 |pmid=3298058 |doi= |url=}}</ref> | ||
**There are many risk factors associated with complex anal fistula e.g preexisting incontinence, recurrent fistula, local irradiation, chronic diarrhea, or Crohn's disease. | **There are many risk factors associated with complex anal fistula e.g preexisting incontinence, recurrent fistula, local irradiation, chronic diarrhea, or Crohn's disease. | ||
**There are multiple tracts found in complex anal fistula and is anterior in the location in females. | **There are multiple tracts found in complex anal fistula and is anterior in the location in females. | ||
Revision as of 15:34, 22 January 2018
|
Anal fistula Microchapters |
|
Diagnosis |
|---|
|
Treatment |
|
Anal fistula classification On the Web |
|
American Roentgen Ray Society Images of Anal fistula classification |
|
Risk calculators and risk factors for Anal fistula classification |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Manpreet Kaur, MD [2]
Overview
Classification
Anal fistulas are classified into the four types based on the relationship to sphincter:[1]
- Intersphincteric
- Transsphincteric
- Suprasphincteric
- Extrasphincteric
Anal fistulas are classified into two categories based on the risk factors associated:
- Simple anal fistula:[2]
- There are no risk factors associated with simple anal fistula.
- Treatment of simple anal fistula results in low incidence of fecal incontinence and poor wound healing.
- Complex anal fistula:[3]
- There are many risk factors associated with complex anal fistula e.g preexisting incontinence, recurrent fistula, local irradiation, chronic diarrhea, or Crohn's disease.
- There are multiple tracts found in complex anal fistula and is anterior in the location in females.
References
- ↑ Parks AG, Gordon PH, Hardcastle JD (1976). "A classification of fistula-in-ano". Br J Surg. 63 (1): 1–12. PMID 1267867.
- ↑ Sangwan YP, Rosen L, Riether RD, Stasik JJ, Sheets JA, Khubchandani IT (1994). "Is simple fistula-in-ano simple?". Dis. Colon Rectum. 37 (9): 885–9. PMID 8076487.
- ↑ Fazio VW (1987). "Complex anal fistulae". Gastroenterol. Clin. North Am. 16 (1): 93–114. PMID 3298058.