Table 3.
Imaging characteristics of periprocedural stroke in 59 patients with available imaging who underwent carotid artery stenting (CAS) versus endarterectomy (CEA).
| CAS | CEA | |
|---|---|---|
| Stroke (n=40/48) % (n/N) |
Stroke (n=19/21) % (n/N) |
|
| Ischemic (n=42) | 73 (29/40) | 68 (13/19) |
| Hemorrhage (n=5) | 8 (3/40) | 11 (2/19) |
| No stroke on imaging (n=9) | 13 (5/40) | 21 (4/19) |
| UTD (n=3)* | 8 (3/40) | --- |
| Ischemia Distribution (n=42) | ||
| Posterior circulation | 3 (1/29) | 0 (0/13) |
| Anterior circulation** | 83 (24/29) | 100 (13/13) |
| Bilateral or Multi-territory | 14 (4/29) | 0 (0/13) |
| Ischemia Pattern (n=42) | ||
| Scattered embolic | 38 (11/29) | 38 (5/13) |
| Cortical infarct | 31 (9/29) | 31 (4/13) |
| Subcortical infarct | 17 (5/29) | 31 (4/13) |
| Bilateral or Multi-territory | 14 (4/29) | 0 (0/13) |
There were: 69 total strokes, of which 59 had imaging data reviewed.
*
UTD = Unable to determine from available images due to poor quality scans preventing review (n=1) or imaging was available only pre-stroke (n=2).
**
Two ischemic anterior strokes, one each in the CAS and CEA arms, anterior circulation were contralateral to the targeted carotid lesion.