Comparison of demographics, clinical presentation, and MRI findings of 3 types of spinal arteriovenous shunts below the conusa
| Characteristics | FTAVF (n = 11) | rAVS (n = 7) | SDAVF (n = 30) | All (n = 48) | P Valueb |
|---|---|---|---|---|---|
| Demographic | |||||
| Age (mean) (yr) | 52.9 ± 12.6 | 37.4 ± 15.7 | 55.6 ± 14.9 | 52.4 ± 15.5 | .017c |
| Female sex | 3 (27.3%) | 3 (42.9%) | 6 (20%) | 12 (25%) | .443 |
| Clinical symptoms | |||||
| Duration of symptoms (mean) (mo) | 12.1 ± 7.8 | 9.9 ± 9.8 | 13.1 ± 28.0 | 12.4 ± 22.6 | .396 |
| Back pain | 3 (27.3%) | 3 (42.9%) | 2 (6.7%) | 8 (17.0%) | .028c |
| Progressive paraparesis | 11 (100.0%) | 6 (85.7%) | 27 (90.0%) | 44 (91.7%) | .598 |
| Progressive hypesthesia | 7 (63.6%) | 6 (85.7%) | 20 (66.7%) | 33 (68.8%) | .739 |
| Numbness | 5 (45.5%) | 3 (42.9%) | 16 (53.3%) | 24 (50%) | .844 |
| Bowel/bladder dysfunction | 8 (72.7%) | 4 (57.1%) | 26 (86.7%) | 38 (79.2%) | .167 |
| MRI findings | |||||
| Spinal cord edema | 11 (100%) | 5 (71.4%) | 28 (93.3%) | 44 (91.7%) | .129 |
| Engorged vein | 10 (90.9%) | 6 (85.7%) | 29 (96.7%) | 45 (93.8%) | .313 |
| Spinal cord tethering | 6 (54.5%) | 0 (0.0%) | 7 (23.3%) | 13 (27.1%) | .032c |
| Sacral lipoma | 5 (45.5%) | 0 (0.0%) | 5 (16.7%) | 10 (20.8%) | .061 |