Table 2 AE rates in our cohort subdivided according to the ASGE grading system

ERCP

Cases

Valid%

Valid%

Valid%

Billroth II

179

2.2%

4.0%

8.5%

Emergency case (outside normal hours)

525

4.6%

2.5%

10.1%

Child < 3 years

2

0.0%

50.0%

50.0%

Previous failed/incomplete procedure

304

5.6%

2.6%

12.0%

Level 1

Deep cannulation of duct of interest,

main papilla sampling

1328

3.9%

3.3%

8.4%

Aspiration of bile

148

2.7%

3.4%

7.4%

Biliary stent removal /exchange

760

1.2%

1.1%

4.6%

Level 2

Biliary stone extraction < 10 mm

3627

5.0%

3.4%

10.8%

Treat biliary leaks

208

2.4%

2.4%

7.7%

Treat extrahepatic benign / malignant strictures

1849

3.9%

4.6%

11.1%

Place prophylactic pancreatic stents

232

7.3%

10.3%

18.6%

Level 3

Biliary stone extraction > 10 mm

1408

4.1%

2.3%

9.1%

Minor papilla cannulation in p. divisum, and therapy

79

1.3%

12.7%

15.2%

Remove of internally migrated biliary stents

73

0.0%

1.4%

9.6%

Intraductal imaging, biopsy

156

1.3%

3.2%

7.7%

Manage acute or recurrent pancreatitis

428

2.1%

5.1%

8.2%

Treat pancreatic strictures

345

0.6%

6.4%

7.9%

Remove pancreatic stones mobile and < 5 mm

129

0.0%

7.0%

7.8%

Treat hilar tumors

193

1.6%

2.1%

5.3%

Treat benign biliary strictures hilum and above

390

0.8%

2.3%

5.7%

Manage suspected sphincter Oddi dysfunction

24

4.2%

41.7%

41.7%

Level 4

Extract internally migrated pancreatic stent

32

0.0%

3.1%

6.3%

Intraductal image guided therapy

(e.g. PDT; electrohydraulic lithotripsy)

93

1.1%

2.2%

10.8%

Pancreatic stones impacted and/or > 5 mm

58

3.4%

10.3%

15.5%

Intrahepatic stones

76

2.6%

2.6%

6.6%

Ampullectomy

51

15.7%

11.8%

28.0%

ERCP after Whipple or Roux - en - Y

125

0.0%

0.8%

8.2%

All Cases (NOT sum - multiple answers possible)

10,917

3.7%

3.5%

9.5%