Review of diagnostic and therapeutic endoscopic retrograde cholangiopancreatography using several endoscopic methods in patients with surgically altered gastrointestinal anatomy

Table 1 Information of balloon assisted endoscopy in Japan

	FUJIFILM					OLYMPUS
	EN-450P/20	EN-450T5	EN-580T	EC-450BI5	EI-530B	SIF-Q260	SIF-Y 0004(the first generation)	SIF-Y 0004(the second generation)
	Standard type	Standard type	Standard type	Short type	Short type	Standard type	Short type	Short type
Release date (yr)	2003	2004	2013	2005	2011	2007	Prototype	Prototype
Direction of view	Forward view	Forward view	Forward view	Forward view	Forward view	Forward view	Forward view	Forward view
Angle of view	120°	140°	140°	140°	140°	140°	120°	120°
Outer diameter (mm)	8.5	9.4	9.4	9.4	9.4	9.2	9.2	9.2
Total length (mm)	2300	2300	2300	1820	1820	2305	1840	1840
Working length (mm)	2000	2000	2000	1520	1520	2000	1520	1520
Working channel (mm)	2.2	2.8	3.2	2.8	2.8	2.8	3.2	3.2
Passive bending part	No	No	No	No	No	No	No	Yes

Table 2 Review studys evaluating endoscopic retrograde cholangiopancreatography using several enteroscopy in patients with altered gastrointestinal anatomy

Ref.	No. ofcases	Type of scope	Enteroscopy success (%)	Success rate of ERCP	Overall ERCPsuccess (%)
Mehdizadeh et al[48]	5	Standard type DBE	67	100	67
Mönkemüller et al[53]	18	Standard type DBE	94	85	83
Maaser et al[4]	11	Standard type DBE	100	64	64
Kuga et al[59]	6	Standard type DBE	100	83	83
Tsujino et al[49]	12	Short type DBE	100	94	94
Siddiqui et al[44]	79	Short type DBE	89	90	81
Shimatani et al[39]	103	Short type DBE	97	96	94
Tomizawa et al[69]	22	Standard type SBE	68	73	50
Itoi et al[63]	13	Standard type SBE	92	83	77
Dellon et al[64]	4	Standard type SBE	75	67	50
Yamauchi et al[32]	31	Short type SBE	90	89	81
Obana et al[33]	19	Short type SBE	79	66	53
Shimatani et al[34]	26	Short type SBE	92	92	85
Lennon et al[70]	29	Standard type SBE	55	87	48
Shah et al[41]	27	Standard type DBE	85	85	63

ERCP: Endoscopic retrograde cholangiopancreatography; DBE: Double balloon endoscopy; SBE: Single-balloon endoscopy.