Table 2. Operative data for 269 propensity score-matched patients treated with carotid artery stenting, according to symptomatic status at presentation: asymptomatic or symptomatic.
| Asymptomatic n=224 (83.3) | Symptomatic n=45 (16.7) | p-value* | |
|---|---|---|---|
| CAS intervention (n=269) | |||
| Predilation | 25 (11.2) | 3 (6.7) | 0.59 |
| Post-dilation | 216 (96.4) | 44 (97.8) | 1 |
| Percutaneous access site | |||
| Femoral | 196 (87.5) | 42 (93.3) | 0.32 |
| Radial | 28 (12.5) | 3 (6.7) | |
| Cerebral protection | |||
| Proximal | 142 (63.4) | 32 (71.1) | 0.37 |
| Distal | 82 (36.6) | 13 (28.9) | |
| Contrast medium, ml | 170.3±55.9 | 171.3±40.8 | 0.92 |
| Stents deployed | 107 (47.8) | 21 (46.7) | 0.89 |
| Single stent (n=1) | 220 (98.2) | 45 (100) | 1 |
| Multiple stents (n≥2) | 4 (1.8) | 0 (0) | |
| Stent length, mm | 31.6±9.2 | 31.3±8.4 | 0.86 |
| Second-generation stents | |||
| Roadsaver | 91 (40.6) | 19 (42.2) | 0.70 |
| CGuard | 12 (5.4) | 2 (4.4) | |
| First-generation stents | |||
| Carotid WALLSTENT | 27 (12.1) | 8 (17.8) | 0.70 |
| XACT | 80 (35.7) | 15 (33.3) | |
| Cristallo Ideale | 14 (6.3) | 1 (2.2) | |
| Debris observed in filter of the protection system (with naked eye) | 7 (3.1) | 1 (2.2) | 1 |
| Data are presented as mean±SD or n (%). *The chi-square test was used to evaluate qualitative distribution between the 2 groups (Fisher’s exact test if cases <5). Means were compared with the t-test. CAS: carotid artery stenting | |||