Table 2 Baseline Characteristics of BAVM by Unfavorable or No unfavorable hemorrhagea
Characteristic | No unfavorable hemorrhage (n = 113) | Unfavorable hemorrhage (n = 49) | Total (n = 162) | P value |
|---|---|---|---|---|
Demographic | ||||
Gender | .36 | |||
Female | 42 (37.2) | 22 (44.9) | 64 (39.5) | |
Male | 71 (62.8) | 27 (55.1) | 98 (60.5) | |
Age at diagnosis (ys) | 12.66 ± 4.00 | 11.59 ± 3.43 | 12.33 ± 3.85 | .14 |
Clinical | ||||
mRS at presentation | < .001c | |||
0 | 11 (9.7) | 0 (0) | 11 (6.8) | |
1 | 53 (46.9) | 0 (0) | 53 (32.7) | |
2 | 27 (23.9) | 1 (2.1) | 28 (17.3) | |
3 | 22 (19.5) | 3 (6.1) | 25 (15.4) | |
4 | 0 (0) | 20 (40.8) | 20 (12.4) | |
5 | 0 (0) | 25 (51.0) | 25 (15.4) | |
Radiological | ||||
Supratentorial location | 107 (94.7) | 45 (91.8) | 152 (93.8) | .74b |
Deep location | 36 (31.9) | 23 (46.9) | 59 (36.4) | .08 |
Eloquence | 55 (48.8) | 22 (44.9) | 77 (47.5) | .66 |
Periventricular location | 55 (48.7) | 37 (75.5) | 92 (56.8) | .002 |
Temporal lobe location | 44 (38.9) | 10 (20.4) | 54 (33.3) | .02 |
Maximal nidus size (mm) | 11.49 ± 4.21 | 39.13 ± 19.96 | 39.49 ± 18.73 | .88 |
Exclusively Deep Venous drainage | 10 (8.8) | 7 (14.3) | 17 (10.5) | .30 |
Long pial draining vein | 49 (43.4) | 30 (61.0) | 79 (48.8) | .04 |
Associated aneurysm | 11 (9.7) | 6 (12.2) | 17 (10.5) | .63 |