Dome vs tapered tip sphincterotomes in endoscopic retrograde cholangiopancreatography: A pilot study on cannulation success and postprocedural pancreatitis

Table 2 Outcomes of cannulation and procedural metrics

Variables	Dome tip (n = 43)	Tapered tip (n = 42)	P value1
Selective biliary cannulation success rate	32/43	36/42	0.20
Difficult cannulation	14/43	6/42	0.05
More than 5 contacts with the papilla	5	2	0.93
More than 5 minutes spent attempting	11	6	0.08
More than one unintended pancreatic duct cannulation or opacification	3	2	0.62
Time to selective biliary cannulation (seconds)	237.74 ± 252.36	188.7 ± 319.96	0.43
Number of papilla contacts	3.03 ± 2.45	2.24 ± 2.17	0.37
Number of unintentional P duct cannulation	0.47 ± 0.63	0.38 ± 0.58	0.53
Total procedure time (seconds)	971.16 ± 367.13	808 ± 409.57	0.06

¹P values were calculated using the t-test for continuous variables and χ² test for categorical variables.