Table 3.
Doppler, Pre- and Post-Surgery
| Pre-surgery | Post-surgery | p value | Pre-surgery | Post-surgery | p value | |
|---|---|---|---|---|---|---|
| MCA sitting cm/sec | MCA sitting, defect | MCA sitting, healthy | ||||
| Systolic | 71.740 | 64.373 | 63.388 | 75.583 | ||
| Dyastolic | 26.715 | 25.239 | 24.431 | 29.913 | 0.075 | |
| Mean | 43.090 | 38.206 | 37.156 | 43.726 | ||
| MCA Supine cm/sec | MCA supine, defect | MCA Supine, healthy | ||||
| Systolic | 66.000 | 59.146 | 69.695 | 66.408 | ||
| Dyastolic | 26.804 | 23.189 | 0.051 | 28.886 | 25.798 | 0.063 |
| Mean | 40.165 | 35.831 | 41.467 | 39.252 | ||
| ICA sitting cm/sec | ICA sitting, defect | ICA sitting, healthy | ||||
| Systolic | 47.169 | 44.652 | 46.387 | 39.958 | ||
| Dyastolic | 10.828 | 10.650 | 12.205 | 10.443 | ||
| MEAN | 20.242 | 19.495 | 21.257 | 18.055 | 0.067 | |
| ICA supine cm/sec | ICA supine, defect | ICA supine, healthy | ||||
| Systolic | 37.660 | 39.879 | 37.038 | 40.823 | ||
| Dyastolic | 9.833 | 10.462 | 10.798 | 10.245 | ||
| MEAN | 16.822 | 17.905 | 18.025 | 18.583 | ||
| LR | Lindegaard index, defect | Lindegaard index, healthy | ||||
| Sitting | 2.828 | 2.445 | 2.163 | 2.294 | ||
| Supine | 2.731 | 2.381 | 2.899 | 2.512 | ||
| ΔLR (Sitting-Supine) | 0.097 | 0.064 | −0.736 | −0.180 | ||
A t-test for paired data was applied to compare each side with itself before and after the surgery. There was a small decrease in the MCA diastolic velocity on both sides after the surgery. Insignificant p values have been left blank.
MCA, middle cerebral artery; ICA, internal carotid artery; LR, Lindegaard ratio.