Characteristics of transient ischemic attack (TIA) patients with and without infarction on follow-up MR imaging (MRI)
| Reversible (n = 7) | Infarction (n = 26) | All Patients (n = 33) | P Value | |
|---|---|---|---|---|
| Male, % | 5 (71%) | 18 (70%) | 23 (69%) | 1 |
| Age, y (mean ± SD) | 58 ± 15 | 61 ± 17 | 60 ± 16 | .5 |
| Symptoms | ||||
| Duration, min (mean ± SD) | 76 ± 85 | 188 ± 253 | 201 ± 262 | .2 |
| Duration <60 min | 3 (43%) | 10 (38%) | 13 (39%) | 1 |
| Multiple TIA events | 3 (43%) | 10 (38%) | 13 (39%) | 1 |
| Identified cause, % | 3 (43%) | 12 (46%) | 15 (45%) | 1 |
| Initial MRI | ||||
| Delay from onset MRI, h | 21 ± 10 | 33 ± 36 | 30 ± 33 | .9 |
| Solitary lesions | 6 (86%) | 11 (42%) | 17 (51.5%) | .08 |
| Follow-up MRI | ||||
| Delay from onset MRI, mo | 11.6 ± 3.1 | 10.4 ± 5.5 | 10.6 ± 5 | .75 |
Note:— Patients with multiple lesions of different outcome are classed in the infarction group.