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. 2011 Apr 8;6:46. doi: 10.1186/1749-8090-6-46

Table 5.

Complications and resolution of symptoms in patients with benign diseases after covered and uncovered stent placement

Total (n = 116) Covered (n = 42) Uncovered (n = 74) p value¶
Complication rate
 Stent migration, n(%) 8(6.9) 4(9.5) 4(5.4) 0.458
 Granulation tissue formation, n(%) 22(19.0) 7 (16.7) 15(20.3) 0.634
 Stent fracture, n(%) 19(16.4) 5(11.9) 14(18.9) 0.44
Resolution of symptoms, n(%) 89(76.7) 30 (71.4) 59 (79.7) 0.363

Abbreviations: p value, covered vs. uncovered stents; SEMS, self-expandable metallic stent