Cystic duct dilation through endoscopic retrograde cholangiopancreatography for treatment of gallstones and choledocholithiasis: Six case reports and review of literature

Table 4 Intraoperative parameters and information of endoscopic retrograde cholangiopancreatography

No.	ERCP operation time, min	EPBD, cm	Biliary stent	ENBD	Secondary ERCP
1	140	0.8	No	Yes	Yes
2	120	0.6	No	Yes	No
3	125	0.8	No	Yes	No
4	95	0.6	No	Yes	No
5	105	0.6	No	Yes	No
6	110	0.8	No	Yes	No

ENBD: Endoscopic nasobiliary drainage; EPBD: Endoscopic papillary balloon dilation; ERCP: Endoscopic retrograde cholangiopancreatography.