Efficacy of multiple biliary stenting for refractory benign biliary strictures due to chronic calcifying pancreatitis

Table 1 Baseline patient characteristics, imaging findings, and interventions before treatment (n = 10)

Variable	Value
Patient characteristics
Sex, n (%)
Male	10 (100.0)
Female	0 (0.0)
Age, mean ± SD, yr	56.9 ± 6.9
BMI, mean ± SD, kg/m2	19.2 ± 2.6
Etiology, n (%)
Alcohol	9 (90.0)
Other	1 (10.0)
Alcohol abuse, n (%)
Presence	8 (80.0)
Absence	2 (20.0)
Duration of CP, mean ± SD, mo	106.4 ± 72.4
Treatment period, mean ± SD, d	350.6 ± 61.0
Follow up period, mean ± SD, mo (complete group)	20.6 ± 7.3
Imaging findings
CBD diameter, mean ± SD, mm	12.5 ± 2.7
Length of stricture, mean ± SD, mm	23.9 ± 5.7
No. of pancreatic stones, n (%)
Single	5 (50.0)
Multiple	5 (50.0)
Pancreatic stone location, n (%)
Head	10 (100.0)
Body + Tail	0 (0.0)
Pancreatic stone diameter, mean ± SD, mm	10.2 ± 5.5
Interventions
No. of ERCP sessions, mean ± SD	4.5 ± 1.0
No. of stents, mean ± SD	4.1 ± 1.2
Dilation of CBD stricture, n (%)
Presence	0 (0.0)
Absence	10 (100.0)

BMI: Body mass index; CBD: Common bile duct; CP: Chronic pancreatitis; ERCP: Endoscopic retrograde cholangiopancreatography.