Table 1 Main characteristics of patients with DPDS

 Biliary

11

 Nonbiliary

4

Etiology of Trauma

 Work

8

 Car accident

6

 Personal fight

1

 Fall down

1

Age (year)^a

42 (25~70)

32 (23~54)

Male

3 (20%)

4 (27%)

PFCs: EPFs

5:10

10:6

Diameter of PFC (cm)^a

5.2 (2.5~8.9)

2.4 (2.0~11.4)

CT guided puncture before ERCP

9 (60%)

2 (12.5%)

EUS guided puncture before ERCP

2 (13.3%)

0 (0%)

Pancreatic debridement before ERCP

2 (13.3%)

7 (43.8%)

 Interval between discovering pseudocyst or fistula and DPDS (months) ^a

3.6 (0.5~38)

7.5 (1.0~84)

 Location

  Proximal (head or neck)

10

12

  Distal (body or tail)

5

4

  Transpapillary drainage^b

8

5 (7)

  Sphincterotomy^b

0 (1)

3 (4)

  Transpapillary drainage + Sphincterotomy

2

0

  No intervention^b

3 (4)

5

 Following up Lost

1 (6.7%)

4 (25%)

 Stent retention (days) ^a

 Follow-up time after Last ERCP intervention or surgery (months)^a

 ≥2 stent insertion

3 (20%)

2 (12.5%)

 Successful outcome

10 (71.4%)

8 (66.7%)

 Developed DM

2 (14.3%)

1 (8.3%)

 Developed diarrhea

3 (21.4%)

0 (0%)

 Developed atrophy

6 (42.9%)

4 (33.3%)