From: Classification of the cystic duct patterns and endoscopic transpapillary cannulation of the gallbladder to prevent post-ERCP cholecystitis
Cyst ducts pattern
P
Type I
Type II
Type III
Number of patients (N)
175
4
22
Number of successful cannulation (N)
149
3
19
Success rate of cannulation (%)
85.1%
75.0%
86.4%
0.84