Endoscopic retrograde cholangiopancreatography-related early perforations: A study of effects of procedure duration, complexity, and endoscopist experience

Table 1 Details of the endoscopic retrograde cholangiopancreatographys associated with perforation for clinical outcomes research initiative-national endoscopic database

Physician	Physician volume quartile	Center volume quartile	Indication	ERCP difficulty grade	Dilation of strictures	Sphincterotomy performed	Stent placement	Sphincterotomy device	Peritonitis	Prior biliary surgery
1	4	4	LHD tumor biopsy	3	No	No	No	NA	No	No
2	4	4	Pancreatic tumor	3	No	Yes	Yes	1	No	Yes
2	4	4	CBD stone	3	Yes	Yes	Yes	Cotton cannulotome	No	No
2	4	4	CBD stricture	3	Yes	Yes	Yes	Cotton cannulotome	No	No
3	3	3	RHD tumor biopsy	3	No	Yes	Yes	Cotton cannulotome	No	No
4	3	2	CBD stone	1	No	Yes	Yes	Cotton cannulotome	No	No
5	4	4	CBD stone	1	No	Yes	Yes	Papillotome	Yes	No
6	4	3	Stent placement	1	No	Yes	Yes	Autotome	No	No
7	4	3	CBD stone	1	No	No	No	1	No	No
8	3	4	CBD stone	1	No	No	No	1	No	No
9	4	3	Pancreatic tumor	3	No	Yes	Yes	Cotton cannulotome	No	No
10	3	3	Sphincter of oddi dysfunction	3	No	Yes	Yes	1	No	No
11	4	4	CBD stone	2	No	Yes	Yes	Cannulating sphincterotome	No	Yes
11	4	4	Stent replacement	1	No	No	No	NA	No	No
11	4	4	Pancreatic pseudocyst drainage	4	No	Yes	Yes	Needle knife precut	No	Yes
12	4	4	CBD stone	1	No	Yes	Yes	1	No	No
13	4	4	CBD stone	1	No	No	No	NA	No	No
14	3	3	Stent placement	1	No	Yes	Yes	Cotton cannulotome	No	No
15	3	3	CBD stone	1	No	No	No	NA	No	No
16	3	3	CBD stone	3	No	No	No	NA	No	Yes

¹Unavailable. LHD: Left hepatic duct; CBD: Common bile duct; ERCP: Endoscopic retrograde cholangiopancreatography.

Table 2 Details of the endoscopic retrograde cholangiopancreatographys associated with perforation for clinical outcomes research initiative-national endoscopic database

Parameter studied	B	SE	Wald	df	P value	HR	95%CI
Age category in yr (< 40, 40-60, 60-75, > 75). Endoscopist ERCP volume (n) quartiles (< 50, 50-100, 100-150, > 150) fluoroscopy time (minutes). Total duration of the procedure (minutes)	0.086	0.271	0.101	1	0.75	1.09	0.64
							1.856
	-0.094	0.241	0.152	1	0.697	0.91	0.568
							1.46
	-0.104	0.133	0.611	1	0.435	0.901	0.694
							1.17
	0.022	0.01	4.403	1	0.036	1.022	1.001
							1.043

ERCP: Endoscopic retrograde cholangiopancreatography; HR: Hazard ratios; CI: Confidence interval.