Table 2.
Stroke aetiology according to the TOAST criteria, stratified for thrombus age and thrombus colour
| Toast criteria | Fresh (n = 40) | Old (n = 35)* | Red (n = 20) | White (n = 24) | Mixed† (n = 31) |
|---|---|---|---|---|---|
| TOAST 1 (large artery atherosclerosis) | 11 (28) | 6 (17) | 4 (20) | 6 (25) | 7 (23) |
| TOAST 2 (cardioembolic) | 21 (52) | 18 (51) | 12 (60) | 13 (54) | 14 (45) |
| TOAST 3 (small vessel disease) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) |
| TOAST 4 (stroke of other determined aetiology) | 0 (0) | 1 (3) | 1 (5) | 0 (0) | 0 (0) |
| TOAST 5 (stroke of undetermined source) | 8 (20) | 10 (29) | 3 (15) | 5 (21) | 10 (32) |
Stroke aetiology according to the “Trial of Org 10172 in Acute Stroke Treatment” (TOAST) criteria, stratified for thrombus age. Thrombus colour (red blood cell-rich [=red]/ fibrin-rich [=white]/ mixed [red blood cell and fibrin]). Numbers are expressed as a frequency and percentage. TOAST 3, not applicable.
Fresh, fresh thrombus (<1 day old); old, old thrombus (>1 day old).
*No significant difference was found between fresh/old thrombus and its distribution over the TOAST criteria (p value = 0.45).
†No significant difference was found between red/white/mixed colour thrombus and its distribution over the TOAST criteria (p value = 0.53).