Patients demographics and procedural characteristics
| All patients | New DWI lesions after CAS | No DWI lesions after CAS | P value | |
| (n=110) | (n=8) | (n=102) | ||
| Gender | 1 | |||
| Men | 78.2% (86/110) | 8.1% (7/86) | 91.9% (79/86) | |
| Women | 21.8% (24/110) | 4.2% (1/24) | 95.8% (23/24) | |
| Age, median (range) | 71 (22–85) | 73 (62–83) | 70 (22–85) | 0.066 |
| Symptomatic stenosis | ||||
| Stroke | 46.4% (51/110) | 11.8% (6/51) | 88.2% (45/51) | 0.339 |
| TIA | 12.7% (14/110) | 0% (0/14) | 100% (14/14) | 0.339 |
| Asymptomatic stenosis | 40.9% (45/110) | 4.4% (2/45) | 95.6% (43/45) | 1 |
| Admission | ||||
| NIHSS, median (range) | 0 (0–25) | 0 (0–10) | 0 (0–25) | 0.749 |
| mRS 0–2 | 86.4% (95/110) | 6.3% (6/95) | 93.7% (89/95) | 0.299 |
| mRS 3–5 | 13.6% (15/110) | 13.3% (2/15) | 86.7% (13/15) | 0.299 |
| Discharge | ||||
| NIHSS, median (range) | 0 (0–14) | 0 (0–5) | 0 (0–14) | 0.767 |
| mRS 0–2 | 94.5% (104/110) | 7.7% (8/104) | 92.3% (96/104) | 1 |
| mRS 3–5 | 5.5% (6/110) | 0% (0/6) | 100% (6/6) | 1 |
| Contralateral ICA pathology | 1 | |||
| Contralateral ICA intervention (stent or thromboendarterectomy) | 10.9% (12/110) | 0% (0/12) | 100% (12/12) | |
| Contralateral ICA stenosis >40% or ICA occlusion | 40.9% (45/110) | 4.4% (2/45) | 95.6% (43/45) | |
| Procedure performance | ||||
| Acute CAS | 2.7% (3/110) | 33.3% (1/3) | 66.7% (2/3) | 0.204 |
| Subacute CAS | 36.4% (40/110) | 12.5% (5/40) | 87.5% (35/40) | 0.146 |
| Elective CAS | 60.9% (67/110) | 3.0% (2/67) | 97.0% (65/67) | 0.058 |
| Duration of procedure in min, median (range) | 40 (33–47) | 40 (15–145) | 35 (27–100) | 0.259 |
CAS, carotid artery stenting; ICA, internal carotid artery; mRS, modified Rankin Scale; NIHSS, National Institute of Health Stroke Scale; TIA, transient ischemic attack.