Intra-biliary cleansing during secondary duodenoscopic removal of duodenal bend biliary stents: A retrospective cohort study

Table 3 Incidence of postoperative adverse events in both groups, n (%)

Variable	Total (n = 546)	SPBSG (n = 228)	DBBSG (n = 318)	P value
Post-ERCP acute cholangitis				0.311
No	532 (97.44)	224 (98.25)	308 (96.86)
Yes	14 (2.56)	4 (1.75)	10 (3.14)
PEP				0.418
No	545 (99.82)	227 (99.56)	318 (100.00)
Yes	1 (0.18)	1 (0.44)	0 (0.00)
Bleeding				1.000
No	544 (99.63)	227 (99.56)	317 (99.69)
Yes	2 (0.37)	1 (0.44)	1 (0.31)
Duodenal perforation
No	546 (100)	228 (100)	318 (100)	NA
Yes	0 (0)	0 (0)	0 (0)

DBBSG: Duodenal bend biliary stent group; SPBSG: Single pigtail biliary stent group; ERCP: Endoscopic retrograde cholangiopancreatography; PEP: Post-endoscopic retrograde cholangiopancreatography pancreatitis; NA: Not available.