Outcome of simple use of mechanical lithotripsy of difficult common bile duct stones

Table 1 Characteristics of success and failure of patient groups.

	Success (n = 272)	Failure (n = 32)	P value
Mean age	69.7	71.2	0.236
Sex(F/M)	156/116	20/12
Mean of stone size	17.1 mm	21.9 mm	<0.0001
Juxtapapillary diverticulum	109 (40.1%)	14 (43.7%)	0.689
Cholangitis	9 (3.3%)	4 (12.5%)	0.037
Pancreatitis	19 (7.0%)	5 (15.6%)	0.154
Delay bleeding	10 (3.7%)	2 (6.2%)	0.366
Perforation	0	0