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Table 1 Characteristics of fistula-in-ano

From: Efficacy of irrigation tubes in the management of para rectal cavities associated with complex fistula-in-ano

Characteristic Number
Number of patients 32
Male 31 (96.8%)
Female 1 (3.1%)
Primary fistula tract
 Trans-sphincteric with associated cavity 26 (81.2%)
 Inter-sphincteric with associated cavity 6 (18.7%)
Level of fistula opening
 Below dentate line 11 (34.7%)
 At the dentate line 20 (62.5%)
 Above the dentate line 1 (3.1%)
Histology
 Unremarkable 30 (93.7%)
 Crohn’s disease 1 (3.1%)
 Tuberculosis 1 (3.1%)
Mean time of significant cavity contraction 34.78 days
Median time of significant cavity contraction 21 days (21–112 days)
Number of patients requiring reinsertion of irrigation tube (after first EUA) 8 (25%)
Outcome
 Fistula healed 28 (87.5%)
 Lost to follow up 3 (9.4%)
 Fistula not healed 1 (3.1%)