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

Table 4 Success rates of spiral enteroscope-assisted endoscopic retrograde cholangiopancreatography in surgically altered anatomy

Ref.	Operation type	Success rate of afferent loop intubation, %	Success rate of cannulation, %	Complication rate, %
Lennon et al[20]	RYGB and other Roux-en-Y reconstruction	40	87.5	3.5
Ali et al[21]	RYGB and other Roux-en-Y reconstruction	86	100	0
Zouhairi et al[22]	RYGB, Billroth II, and hepaticojejunostomy	76.2	81.3	23.8
Shah[82]	RYGB, hepaticojejunostomy, Whipple, and post-gastrectomy	88	79	12.4
Wagh et al[23]	RYGB, Whipple, Billroth II, and hepaticojejunostomy	77	67	0

RYGB: Roux-en-Y gastric bypass.