Table 1 Demographic and baseline characteristics

Male (%)

8 (80)

Age (years)

34.3 (22–53)

Median BMI (range)

22(18–23)

Median CD duration, y (range)

8(2–18)

Median fistula duration, y (range)

5(1–16)

History of surgery for fistula, n (%)

7 (70)

Fistulas prior treatment failure

Antibiotics

8

Anti-TNF

2

Number of fistula tracks

1

3

2

6

3

1

Number of external openings

1

4

2

5

3

1

Location

Extra-sphincteric

2

Inter-sphincteric

5

Supra-sphincteric

2

Trans-sphincteric

1

Extension

Infraelevator

6

Supraelevator

4

Rectum wall involvement

Normal

3

Thickened

7