Gastroenterology Research and Practice

Research Article

Impact of a Novel Oblique-Tip Papillotome for Biliary Cannulation during ERCP: A Nonrandomized Coarsened Exact Matching Study

Table 6

Multivariate regression models: factors associated with the biliary cannulation time, number of unintended pancreatic access events, frequency of rescue cannulation, biliary cannulation rate, and incidence of PEP.
Coefficient or odds ratio (95% CI) value
Objective variable: number of unintended pancreatic access events
 OT-papillotome (vs. ST-papillotome)1.579 (0.825-3.023)0.168
 Age1.003 (0.987-1.019)0.735
 Male (vs. female)0.555 (0.328-0.9388)0.028
 Malignancy (vs. benign disease)0.783 (0.403-1.522)0.470
 Diverticulum (vs. no diverticulum)0.619 (0.22-1.745)0.364
 Wire-guided cannulation (vs. contrast-guided)0.781 (0.408-1.499)0.458
Objective variable: biliary cannulation time
 OT-papillotome (vs. ST-papillotome)-62.915 (-231.882-106.053)0.464
 Age1.779 (-2.435-5.994)0.406
 Male (vs. female)-18.156 (-154.931-118.618)0.794
 Malignancy (vs. benign disease)54.622 (-115.241-224.484)0.527
 Diverticulum (vs. no diverticulum)-138.70 (-414.775-137.376)0.323
 Wire-guided cannulation (vs. contrast-guided)131.248 (-40.312-302.807)0.133
Objective variable: frequency of rescue cannulation
 OT-papillotome (vs. ST-papillotome)0.447 (0.2185-0.916)0.028
 Age0.991 (0.973-1.009)0.311
 Male (vs. female)0.850 (0.462-1.564)0.601
 Malignancy (vs. benign disease)1.596 (0.760-3.354)0.217
 Diverticulum (vs. no diverticulum)1.079 (0.321-3.627)0.902
 Wire-guided cannulation (vs. contrast-guided)1.127 (0.491-2.583)0.778
Objective variable: incidence of PEP
 OT-papillotome (vs. ST-papillotome)0.791 (0.203-3.080)0.735
 Age0.992 (0.959-1.026)0.633
 Male (vs. female)0.486 (0.153-1.550)0.223
 Malignancy (vs. benign disease)1.471 (0.385-5.622)0.572
 Diverticulum (vs. no diverticulum)0.984 (0.110-8.839)0.989
 Wire-guided cannulation (vs. contrast-guided)0.779 (0.180-3.361)0.738
Objective variable: successful biliary cannulation
 OT-papillotome (vs. ST-papillotome)21.906 (2.401-199.864)0.006
 Age1.002 (0.966-1.040)0.895
 Male (vs. female)3.318 (0.904-12.178)0.071
 Malignant (vs. benign disease)0.253 (0.061-1.046)0.058
 Diverticulum (vs. no diverticulum)0.056 (0.008-0.408)0.004
 Wire-guided cannulation (vs. contrast-guided)0.924 (0.071-12.097)0.952