Brief Article
Copyright ©2010 Baishideng Publishing Group Co.
World J Gastroenterol. Sep 14, 2010; 16(34): 4335-4340
Published online Sep 14, 2010. doi: 10.3748/wjg.v16.i34.4335
Table 1 Baseline characteristics of patients with common bile duct stones who also had periampullary diverticula (periampullary diverticula group) or did not have periampullary diverticula (control group), median (range)
CharacteristicsPAD groupPAD subtypesControl groupP2value
Type AType BP1 value
No. of patients7335 (47.9)38 (52.1)66
M:F36:3719:1617:21NS39:27NS
Age (yr)70 (40-89)74 (54-88)66.5 (40-89)NS64 (23-89)< 0.001
CBD diameter (mm)15 (10-30)16 (10-26)15 (10-30)NS15 (11-38)NS
Size of stones (mm)14 (10-33)14 (10-30)14 (10-33)NS12 (10-35)NS
No. of stones2 (1-20)2 (1-9)2 (1-20)NS2 (1-7)NS
Distal CBD stricture431NS1NS
Needle-knife fistulotomy734NS11NS
Table 2 Outcome of limited endoscopic sphincterotomy plus large balloon dilation in patients with common bile duct stones who also had periampullary diverticula (periampullary diverticula group) or did not have periampullary diverticula (control group)
CharacteristicsPAD groupControl groupP2value
Overall stone removal, n (%)69/73 (94.5)62/66 (93.9)NS
Type A33/35 (94.3)NS
Type B36/38 (94.7)NS
P1 valueNS
Stone removal in first session, n (%)51/73 (69.9)54/66 (81.8)NS
Type A28/35 (80)NS
Type B23/38 (60.5)0.021
P1 valueNS
No. of sessions, median (range)1 (1-3)1 (1-2)NS
Type A1 (1-3)NS
Type B1 (1-3)0.037
P1 valueNS
Diameter of balloon dilation (mm), median (range)13.5 (10-20)12.5 (10-20)NS
Type A13.5 (10-20)NS
Type B13.8 (10-20)NS
P1 valueNS
Mechanical lithotripsy required, n (%)9/73 (12.3)9/66 (13.6)NS
Type A5/35 (14.3)NS
Type B4/38 (10.5)NS
P1 valueNS
Table 3 Complications of limited endoscopic sphincterotomy plus large balloon dilation in patients with common bile duct stones who also had periampullary diverticula (periampullary diverticula group) or did not have periampullary diverticula (control group) n (%)
ComplicationsPAD groupControl groupP2value
Pancreatitis7/73 (9.6)2/66 (3.0)NS
Type A5/35 (14.3)0.047
Type B2/38 (5.3)NS
P1 valueNS
Hemorrhage0/73 (0)1/66 (1.5)NS
All complications7/73 (9.6)3/66 (4.5)NS
Type A5/35 (14.3)NS
Type B2/38 (5.3)NS
P1 valueNS