| 时间 | 术前1周内 | 术后1个月 | 术后3个月 | 术后6个月 | ||||
| IPN | 1级 | 2级 | 1级 | 2级 | 1级 | 2级 | 1级 | 2级 |
| 闭环支架 | 20 (76.9) | 6 (23.1) | 20 (76.9) | 6 (23.1) | 19 (73.1) | 7 (26.9) | 16 (61.5) | 10 (38.5) |
| 开环支架 | 28 (87.5) | 4 (12.5) | 28 (87.5) | 4 (12.5) | 28 (87.5) | 4 (12.5) | 27 (84.4) | 5 (15.6) |
| X2 |
|
|
| 3.90 | ||||
| P值 | 0.319 | 0.319 | 0.193 | 0.048* | ||||