Research Article

Comparison of an Inside Stent and a Fully Covered Self-Expandable Metallic Stent as Preoperative Biliary Drainage for Patients with Resectable Perihilar Cholangiocarcinoma

Table 2

Univariable and multivariable analyses of reinterventions.

(2a) IS
VariableReintervention value
With (n = 7)Without (n = 44)UnivariateMultivariate

Bismuth-Corlette classification, n (%)0.1870.309
 I/II0 (0.0)9 (20.4)
 III/IV7 (100.0)35 (79.6)
Previous endoscopic sphincterotomy, n (%)0.355
 With4 (57.1)17 (38.6)
 Without3 (42.9)27 (61.4)
Stenosis length over 20 mm, n (%)0.402
 With5 (71.4)24 (54.5)
 Without2 (28.6)20 (45.5)
Obstruction of the bile duct branch, n (%)0.250
 With6 (85.7)28 (63.6)
 Without1 (14.3)16 (36.4)
Distance of over 10 mm from stenosis to the first branch, n (%)0.401
 With1 (14.3)13 (29.5)
 Without6 (85.7)31 (70.5)

(2b) FCSEMS
VariableReintervention value
With (n = 3)Without (n = 32)UnivariateMultivariate

Bismuth-Corlette classification, n (%)0.0020.068
 I/II0 (0.0)26 (81.2)
 III/IV3 (100.0)6 (18.8)
Previous endoscopic sphincterotomy, n (%)0.581
 With2 (66.7)16 (50.0)
 Without1 (33.3)16 (50.0)
Stenosis length over 20 mm, n (%)0.805
 With2 (66.7)19 (59.4)
 Without1 (33.3)13 (40.6)
Obstruction of the bile duct branch, n (%)<0.0010.008; HR 29.8, 95%CI 2.5–350.1
 With2 (66.7)1 (3.1)
 Without1 (33.3)31 (96.9)
Distance of over 10 mm from stenosis to the first branch, n (%)0.0270.127
 With0 (0.0)21 (65.6)
 Without3 (100.0)11 (34.4)

IS, inside stent; FCSEMS, fully covered self-expandable metallic stent.