Research Article

Efficacy and Safety of Endoscopic Papillary Large Balloon Dilation for Removal of Large Bile Duct Stones in Advanced Age

Table 1

Demographics and baseline characteristics.

VariablesTotal ()<80 yr ()≥80 yr () value

Age (years, range) (50–92) (50–79) (80–92)<0.001
Sex (M)107 (52.5)89 (60.1)18 (32.1)<0.001
BMI (kg/m2)0.261
With ES116 (56.9)80 (54.1)36 (64.3)<0.001
Precutting28 (13.7)22 (14.9)6 (10.7)0.442
Previous surgery
 Cholecystectomy29 (14.2)21 (14.2)8 (14.3)0.986
 Billroth II gastrectomy35 (17.2)29 (19.6)6 (10.7)0.133
Underlying chronic disease110 (53.9)73 (49.3)37 (66.1)0.032
 Neurologic
 CVA20 (9.8)17 (11.5)3 (5.4)0.291
 Dementia6 (2.9)06 (10.7)<0.001
 Hypertension84 (41.2)56 (37.8)28 (50.0)0.115
 Cardiovascular
  Coronary heart disease12 (5.9)7 (4.7)5 (8.9)0.255
  Congestive heart failure9 (4.4)6 (4.1)3 (5.4)0.708
 Chronic renal failure5 (2.5)4 (2.7)1 (1.8)1.000
 Liver cirrhosis7 (3.4)7 (4.7)00.193
 COPD9 (4.4)4 (2.7)5 (8.9)0.118
Periampullary diverticulum102 (50.0)68 (45.9)34 (60.7)0.060
 Large diverticulum (>3 cm)26 (12.7)13 (8.8)13 (23.2)0.006
Gallstones85 (41.7)60 (40.5)25 (44.6)0.596
CBD stones
 Number (1/2/≥3)101/33/7075/25/4826/8/220.434
 Size of stones (mm, range) (10–37) (10–35) (10–37)0.094
 Type (brown/black/cholesterol)38/166/204131/132/147/7/10.285
CBD pathology
 CBD diameter (mm, range) (9.1–35.5) (9.1–35.5) (10.2–35.2)0.052
 Distal CBD stricture11 (5.4)8 (5.4)3 (5.4)0.989
Size of balloon dilator (mm, range) (12–20) (12–20) (12–20)0.275
Duration of balloon (mm, range) (10–60) (10–60) (10–60)0.321

BMI: body mass index; ES: endoscopic sphincterotomy; CVA: cerebrovascular accident; COPD: chronic obstructive pulmonary disease; CBD: common bile duct. Values are presented as mean ± SD (range) or as numbers (%).