Baseline characteristics
Number of patients	18
Gender (male / female)	6 (33.3%) / 12 (66.6%)
Indication
Choledocholithiasis	11 (61%)
Extrahepatic CCC	4 (22%)
Leakage of DHC	1 (6%)
Benign stenosis of pancreatic duct	1 (6%)
Benign stenosis of papilla Vaterii	1 (6%)
ASGE classification of ERCP
1	3 (16.6%)
2	3 (16.6%)
3	7 (43.8%)
4	5 (27.8%)

Table 1: Baseline characteristics of patients undergoing single-use-duodenoscopy

Procedure characteristics (N=)	18
Cannulation of DHC /cholangiogram (N=18)
Cannulation and cholangiogram	16
Failed cannulation	2
Papillotomy (N=8)
Papillotomy	8
Previous papillotomy	8
Failed papillotomy	0
Papillotomy not indicated	2
Stent extraction (N=10)
Snare extraction	10
No stent in situ	8
Failed stent extraction	0
Stone extraction (N=11)
Lithotryptor basket	7 (incl. 3 cases of parallel EHL)
Balloon catheter	4
Failed stone extraction	0
Stent implantation (N=11)
Common bile duct	11
Parallel pancreatic duct	1
No indication	3
Failed stent implantation	2
No indication	2
Single-use cholangioscopy (N=6)
Proximal cholangioscopy	5
+ Biopsy of bile duct tissue	2
+ Electrohydraulic lithotripsy	3
Failed cholangioscopy	1