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. 2017 Oct 17;1(3):55–66. doi: 10.1002/bjs5.13

Table 2.

Summary of key outcomes by intervention, including classification of level of evidence76

Intervention Highest level of evidence Success rate (%) Complication rate (%)
Seton IIb 14–81 Abscess 7–8
Fistulotomy IIIb 72–100 n.r.
Fibrin glue IIIb 40–67 n.r.
Anal fistula plug IIb 15–86 Abscess 4–54
Avulsion 10
Dehiscence 2
Advancement flap IIIc 50–85 Haematoma 7
Flap retraction 7
LIFT procedure IV 60 n.r.
Local stem cells Ib 29–79 Pain 19
Anal inflammation 7
Abscess 17–19
VAAFT IV 8 n.r.
OTSC® IV 83 n.r.
Stoma IIc 81 Death 5
Stoma complication 16

n.r., Not reported (used where no outcomes reported, or outcomes in patients with Crohn's disease not clear); LIFT, ligation of intersphincteric tract; VAAFT, video‐assisted anal fistula treatment; OTSC, over‐the‐scope clip.