Clinical-demographic and anatomic variables of patients undergoing TVE for bAVMs
| Variables | Patients (n = 57) |
|---|---|
| Sex (No.) (%) | |
| Male | 29 (50.9%) |
| Female | 28 (49.1%) |
| Age (mean) (range) (yr) | 38.05 ± 18.1 (9–78) |
| Previous rupture (No.) (%) | 38 (66.6%) |
| bAVM location (No.) (%) | |
| Cortical (lobar or cerebellum) | 41 (72%) |
| Deep (brain stem, thalamus, or basal ganglia) | 16 (28.0%) |
| Nidus diameter (original size) (mean) (cm) | 2.91 ± 1.26 |
| Nidus diameter before treatment by TVE (mean) (cm) | 2.44 ± 0.99 |
| Dilated vein (No.) (%) | |
| Evaluator 1 | 24 (42.1%) |
| Evaluator 2 | 28 (49.1%) |
| Evaluator 3 | 36 (63.1%) |
| Pattern of venous drainage (No.) (%) | |
| Superficial | 25 (43.9%) |
| Deep | 28 (49.1%) |
| Superficial and deep | 4 (7.0%) |
| Venous collector (No.) (%) | |
| 1 | 37 (64.9%) |
| 2 | 18 (31.6%) |
| 3 | 2 (3.5%) |
| Spetzler–Martin grade | |
| I | 5 (8.8%) |
| II | 18 (31.6%) |
| III | 23 (40.4%) |
| IV | 10 (17.5%) |
| V | 1 (1.7%) |