Findings of intraoperative microvascular Doppler ultrasonography (MDU) and their influence on the surgical procedure in 75 patients with 90 aneurysms in relation to SAH grading according to Hunt and Hess20
| SAH Grade20 |
Number of aneurysms n (%) |
Insufficient aneurysm closure n (%) |
Stenosis of adjacent vessel n (%) |
Repositioning of aneurysm clip n (%) |
| 0 | 40 (44.4) | 3 (7.5) | 5 (12.5) | 8 (20.0)3-150 |
| I–V | 50 (55.6) | 8 (16.0) | 12 (24.0) | 18 (36.0)3-150 |
| Total | 90 (100) | 11 (12.2) | 17 (18.9) | 26 (28.9) |
↵3-150 p<0.05.
SAH=subarachnoid haemorrhage.