Utility of the Anterior Oblique-Viewing Endoscope and the Double-Balloon Enteroscope for Endoscopic Retrograde Cholangiopancreatography in Patients with Billroth II Gastrectomy

Table 2

Success rate of procedures in Billroth-II gastrectomy patients.

	AOE		control
	𝑛	(%)	𝑛	(%)	𝑃 value
Reaching the papilla of Vater	60/65	92.3	17/20	85.0	>0.05
Selective cannulation	60/60	100	12/17	70.1	<0.01
Accomplishment of planned procedures	60/60	100	10/17	58.8	<0.01