Table 4.
Imaging and clinical characteristics before and after repeat revascularization.
| Before revision |
After revision (last follow-up) |
|
|---|---|---|
| CVRC | ||
| Unchanged to preoperative status | 11 (73%) | 9 (60%) |
| Worsened to preoperative status | 1 (67%) | 0 |
| Improved to preoperative status | 0 | 2 (13%) |
| Data not available | 2 (13%) | 2 (13%) |
| New ischemic lesions | ||
| Yes | 2 (13%) | 0 |
| No | 13 (87%) | 15 |
| Symptoms | ||
| TIAs | 6 (40%) | 0 |
| Hemorrhage | 1 (67%) | 0 |
| Persisting paraestheisa | 4 (33%) | 0 |
| Epileptic seizures | 1 (6 7%) | 0 |
| Stable/No new clinical symptoms | 1 (67%) | 10 (66%) |
| Improved clinical status | 0 | 5 (33%) |
Summary of cerebral blood flow measurements (H2O PET or SPECT), ischemic lesions on MRI, and neurological symptoms before and after repeat revascularization.
CVRC, cerebrovascular reserve capacity; TIA, transient ischemic attack; SPECT, single-photon emission CT.