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

Table 6 Success rates of double balloon enteroscope, single balloon enteroscope, and spiral enteroscope in surgically altered anatomy

Ref.	Operation type	DBE	SBE	SE	Overall	P value
Shah et al[10]	RYGB, hepaticojejunostomy, post-gastrectomy and Whipple	74%	69%	72%	71%	0.722
Skinner et al[24]	RYGB, Whipple, hepaticojejunostomy and Billroth II	89%	82%	72%	74%	NA
Lennon et al[20]	Roux-en-Y reconstruction	NA	100%	87.5%	93.8%	1
Shah et al[83]	Long-limb surgical bypass	74%	69%	72%	71%	0.887

DBE: Double balloon enteroscope; SBE: Single balloon enteroscope; SE: Spiral enteroscope; RYGB: Roux-en-Y gastric bypass.