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Table 1 Inclusion and exclusion criteria

From: Obesity is a negative predictor of success after surgery for complex anal fistula

Inclusion criteria

Exclusion criteria

Transsphincteric fistula of cryptoglandular origin

Superficial fistulas amenable for fistulotomy

Suprasphincteric fistula of cryptoglandular origin

Rectovaginal and fistulas associated to Crohn's disease

High intersphincteric fistula of cryptoglandular origin

Concomitant anorectal abscess or internal opening not identified

Seton drainage

Fecal diversion