From: Recurrent common bile duct stones as a late complication of endoscopic sphincterotomy
ERCP + ES
Recurrent Primary CBDS
RR
Diverticulum
16%
32%
RR 2.2 (p = 0.002)
Type A
12%
25%
RR 2.3 (p = 0.007)
Type B
4%
7%
RR 1.9 (p = 0.27)