Invasive procedures performed (n=1010)

n

%

Application of balloon and/or basket catheter

476

47.1

Papillotomy

428

42.4

No invasive procedure performed

205

20.3

Pre-cut papillotomy

132

13.1

Application of biliary stent

104

10.3

Mechanical lithotripsy

26

2.6

Taking biopsies

21

2.1

Sclerotherapy

7

0.7