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Table 2 Causes of recurrent biliary obstruction

From: Partially covered metal stents have longer patency than uncovered and fully covered metal stents in the management of distal malignant biliary obstruction: a retrospective study

 

Uncovered

Partially covered

Fully covered

 

(n = 44)

(n = 28)

(n = 29)

P value

Recurrent biliary obstruction

20

(45.4%)

8

(28.6%)

16

(55.2%)

0.122

 Tumor ingrowth

11

(25.0%)

0

0

<0.001*

 Tumor overgrowth

1

(2.3%)

1

(3.6%)

2

(6.9%)

0.61

 Sludge

2

(4.5%)

3

(10.7%)

1

(3.4%)

0.489

 Stent migration

0

0

9

(31.0%)

<0.001*

 Unknown

6

(13.6%)

4

(14.3%)

4

(13.8%)

1.00

  1. *Statistically significant at p < 0.05