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

Table 2 Follow-up results after removing gallstones and choledocholithiasis by endoscopic retrograde cholangiopancreatography

No.	Follow-up period in mo	Residual stones	GBEF before surgery, %	GBEF after surgery, %			Biliary colic	Calculus recurrence
				3 mo	6 mo	9 mo
1	11	No	53	95	82	83	No	No
2	6	No	60	73	80	NA	No	No
3	8	No	55	60	NA	NA	No	No
4	6	No	NA	52	NA	NA	No	No
5	6	No	54	62	68	NA	No	No
6	8	No	NA	56	72	NA	No	No

GBEF: Gallbladder excretion function; NA: Not available, lost to follow-up or undetected.