Table 4.
Comparison of postoperative interventions between conventional trabeculectomy and trabeculectomy with Ex-Press
| Conventional | Ex-Press | p-value | |
|---|---|---|---|
| Laser suture lysis executed (eyes) | 66.6% (26/39) | 84.1% (58/69) | 0.0368 |
| No of sutured threads (eyes) | 4.4±1.1 (26) | 2.7±1.1 (58) | <0.0001 |
| No of cut threads (eyes) | 2.7±1.4 (26) | 2.4±1.0 (58) | 0.297 |
| No of cut threads/No of sutured threads (eyes) | 61.2±26.3 (26) | 89.2±20.0 (58) | <0.0001 |
| No of days until cutting the first thread (eyes) | 8.8±10.6 (26) | 3.4±4.3 (58) | 0.0012 |
| No of days until cutting the second thread (eyes) | 11.9±10.9 (20) | 12.2±11.4 (53) | 0.904 |
| Needling executed (eyes) | 23.0% (9) | 15.9% (11) | 0.359 |
| No of days until needling | 32.5±15.8 | 29.2±18.9 | 0.691 |
| IOP before needling | 23.6±3.1 mmHg | 22.0±5.1 mmHg | 0.434 |
| IOP 1 month after needling (eyes) (rate of decrease) | 17.2±6.9 mmHg (9) (27.6%±22.0%) |
17.6±4.6 mmHg (11) (16.9%±21.7%) |
0.874 (0.292) |
| IOP 3 months after needling (eyes) (rate of decrease) | 13.1±3.0 mmHg (7) (41.1%±15.8%) |
12.0±2.9 mmHg (8) (40.2%±18.6%) |
0.467 (0.917) |
| IOP 6 months after needling (eyes) (rate of decrease) | 13.1±3.0 mmHg (7) (40.5%±17.7%) |
11.5±2.3 mmHg (8) (42.1%±19.1%) |
0.251 (0.872) |
Abbreviations: Ex-Press, Ex-PRESS® mini-glaucoma shunt device; IOP, intraocular pressure.