Table 1.

Baseline characteristics of the patients

No. of patients, n	20
Sex, male/female, n	12/8
Median age (range), yr	71 (49–85)
Diagnosis, n (%)
Pancreatic cancer	9 (45)
Bile duct cancer	3 (15)
Duodenal cancer	2 (10)
Gallbladder cancer	1 (5)
Others	5 (25)
Surgically altered anatomy, n (%)	6 (30)
Distal gastrectomy with Roux-en-Y	4 (20)
Total gastrectomy with Roux-en-Y	2 (10)
Indwelling duodenal stent, n (%)	6 (30)
Location of the stricture, n (%)
Inferior	11 (55)
Middle	5 (25)
Superior	4 (20)
Median length of the stricture (range), mm	18 (13–50)
Median bilirubin level (range), mg/dL	4.05 (0.44–25.62)
Median alkaline phosphatase level (range), U/L	1,573 (574–6,434)
Cholangitis, n (%)	6 (30)
Chemotherapy, n (%)	11 (55)
Median follow-up period (range), d	183 (46–519)