Current status of endoscopic retrograde cholangiopancreatography in patients with surgically altered anatomy

Table 2 Success rate of long and short double-balloon enteroscope-assisted endoscopic retrograde cholangiopancreatography in surgical altered anatomy

Ref.	Endoscope type	Operation type	Successful of afferent loop intubation, %	Successful of cannulation, %	Complication, %
Shah et al[10]	Long DBE	Overall	71	88	NA
		RYGB	87	67	NA
		non-RYGB	58	58	NA
Katanuma et al[15]	Long DBE	Roux-en-Y reconstruction	75	NA	NA
		Hepaticojejunostomy	80	NA	NA
		Billroth II	100	NA	NA
	Short DBE	Roux-en-Y reconstruction	97.1	NA	NA
		Hepaticojejunostomy	87.5	NA	NA
		Billroth II	100	NA	NA
		Whipple	95.7	NA	NA
		Liver transplantation	88.9	NA	NA
Shimatani et al[70]	Short DBE	Overall	97	98	5
		Billroth II	100	100	NA
		Total gastrectomy	95	96	NA
		Whipple	100	100	NA
Cheng et al[71]	DBE	Billroth II	95	87	6.5
Osoegawa et al[35]	Short DBE	Overall	96	89	3.5
		Billroth II	95	89	NA
		Roux-en-Y reconstruction	96	88	NA
		Whipple	100	100	NA
Skinner et al[24]	Long DBE	RYGB	82	NA	NA
Siddiqui et al[72]	Short DBE	Overall	81	90	8.8
		RYGB	82	91	NA
		Billroth II	100	100	NA
		Whipple	95	84	NA
		Hepaticojejunostomy	100	100	NA
Shimatani et al[73]	Short DBE	Overall	97.7	96.4	10.6
		Roux-en-Y reconstruction	97	97	NA
		Whipple	100	98	NA
		Billroth II	96.2	100	NA
Mizukawa et al[49]	Short DBE	Hepaticojejunostomy	100	NA	7

DBE: Double balloon enteroscope; RYGB: Roux-en-Y gastric bypass.