Table 2.
Distribution of ≥50% arterial stenosis according to vascular territory on baseline investigation in patients who underwent vascular imaging
|
Intracranial or extracranial arterial stenosis ≥50% |
p value | |||
|---|---|---|---|---|
| Any anterior circulation | Any posterior circulation | |||
| Classic TIA | 193/896 (22%) | 80/896 (9%) | <0·0001 | |
| Non-consensus TIAs | 55/467 (12%) | 84/467 (18%) | 0·0001 | |
| Isolated vertigo or ataxia* | 23/169 (14%) | 35/169 (21%) | .. | |
| Isolated diplopia* | 7/45 (16%) | 14/45 (31%) | .. | |
| Bilateral decreased vision* | 9/83 (11%) | 15/83 (18%) | .. | |
| Isolated dysarthria† | 5/45 (11%) | 6/45 (13%) | .. | |
| Unilateral sensory disturbance† | 9/125 (7%) | 13/125 (10%) | .. | |
Data are n/N (%). 22 of 896 patients with classic TIA and 13 of 467 with non-consensus TIA had both anterior and posterior circulation stenosis. TIA=transient ischaemic attack.
*
Events likely to be due to posterior circulation ischaemia.
†
Events due to either posterior or anterior circulation ischaemia.