Table 2 Details of the stent removal procedure in the covered stent group and uncovered stent group
| Stent type | Number of stents | Preoperative features | Postoperative features | Without removal | ||||
|---|---|---|---|---|---|---|---|---|
| Granulation tissue | Stent fracture | Com-plete | Damage | Debris | Total | |||
| Covered stent group | 36 | 15 | 3 | 27 | 5 | 2 | 4 | 2 |
| Uncovered stent group | 9 | 9 | 2 | 2 | 3 | 2 | 7 | 2 |