Which scope is appropriate for endoscopic retrograde cholangiopancreatography after Billroth II reconstruction: An esophagogastroduodenoscope or a colonoscope?

Table 3 Factors influencing the endoscopic retrograde cholangiopancreatography procedural time

		Univariate analysis			Multivariate analysis
	Procedural time ≥ 70 min, n (yes/no)	OR	95%CI	P value	OR	95%CI	P value
Age ≥ 76 yr	13/9	2.09	0.63–6.94	0.23
Sex, male	17/20	0.34	0.06–1.98	0.23
Period after B-II reconstruction ≥ 40	11/11	1.0	0.31–3.26	1.0
Untreated papilla of Vater	21/21	1.0	0.06–17.1	1.0
Antithrombotic drug use	3/4	0.71	0.14–3.63	0.68
Periampullary diverticulum	1/3	0.30	0.03–3.15	0.32
Bile duct stone	15/16	0.8	0.22–2.94	0.74
Transverse diameter of largest stone ≥ 12.2 mm	7/8	0.77	0.18–3.21	0.72
Number of stones ≥ 2	10/7	2.29	0.52–10.0	0.27
CS group	17/10	4.08	1.11–5.0	0.035	3.97	1.05–15.0	0.04
EST	14/12	1.46	0.44–4.88	0.54
EPBD or EPLBD	10/9	1.20	0.37–3.97	0.76
Papilla of Vater access	20/19	1.58	0.24–10.5	0.64
Stone clearance	8/8	1.0	0.24–4.2	1.0
Stone destruction	6/3	2.67	0.52–13.7	0.24
Procedural success	15/19	0.34	0.07–1.54	0.16	0.36	0.07–1.74	0.2

EST: Endoscopic sphincterotomy; EPBD: Endoscopic papillary balloon dilation; EPLBD: Endoscopic papillary large balloon dilation; CS: Colonoscopy; B-II: Billroth II.