Table 5.
Type of BVR in nonaneurysmal subarachnoid hemorrhage and aneurysmal subarachnoid hemorrhage patients.
| BVR type | PMN-SAH | nPMN-SAH | aSAH | p1 | p2 | p3 |
|---|---|---|---|---|---|---|
| Unilateral | n = 160 | n = 100 | n = 266 | 0.003 | 0.021 | 0.950 |
|
| ||||||
| A | 61 (38.1%) | 39 (39.0%) | 147 (55.3%) | |||
| B | 48 (30.0%) | 31 (31.0%) | 61 (22.9%) | |||
| C | 51 (31.9%) | 30 (30.0%) | 58 (22.8%) | |||
|
| ||||||
| Bilateral | n = 80 | n = 50 | n = 133 | 0.028 | 0.066 | 0.882 |
|
| ||||||
| AA | 15 (18.8%) | 9 (18.0%) | 50 (37.6%) | |||
| AB, BB | 26 (32.5%) | 16 (32.0%) | 38 (28.6%) | |||
| AC, BC | 26 (32.5%) | 19 (38.0%) | 32 (24.1%) | |||
| CC | 13 (16.2%) | 6 (12.0%) | 13 (9.8%) | |||
BVR: basal vein of Rosenthal; PMN-SAH: perimesencephalic nonaneurysmal subarachnoid hemorrhage; nPMN-SAH: nonperimesencephalic nonaneurysmal subarachnoid hemorrhage.
p1: statistical analysis was proceeded between PMN-SAH and aSAH group.
p2: statistical analysis was proceeded nPMN-SAH and aSAH group.
p3: statistical analysis was proceeded PMN-SAH and nPMN-SAH group.