Table 2.

Procedural characteristics and complications of patients at high risk of choledocholithiasis.

	MRCP + ERCP (n = 48)	ERCP only (n = 176)	p value
Number of ERCPs
1	43 (89.6%)	154 (87.5%)	0.91
2	4 (8.3%)	19 (10.8%)
>3	1 (2.1%)	3 (1.7%)
Sphincterotomy	43 (89.6%)	145 (82.4%)	0.23
Stone removal	24 (50.0%)	109 (61.9%)	0.18
Sludge removal	19 (39.6%)	71 (40.3%)	0.92
Stent placement	27 (56.3%)	81 (46.0%)	0.21
Unsuccessful ERCP	3 (6.3%)	14 (8.1%)	1
Post-ERCP pancreatitis	2 (4.2%)	4 (2.3%)	0.61
Bleeding (requiring blood transfusion)	0	0	NA
Perforation	1 (2.1%)	1 (0.6%)	0.38

LOS: length of stay.