Table 2.
Surgical results with low-grade AVMs
| Variable | Unruptured AVM | Ruptured AVM | p Value | Total |
|---|---|---|---|---|
| Total | 112 | 120 | 232 | |
| Angiography outcome (%) | 0.46 | |||
| Complete | 106 (95) | 112 (93) | 218 94) | |
| Residual | 0 (0) | 0 (0) | 0 (0) | |
| No study | 6 (5) | 8 (7) | 14 (6) | |
| Patients w/>30-day follow-up (%) | 100 (89) | 107 (89) | Not tested | 207 (89) |
| Mean duration of follow-up ± SD (yrs) | 1.8 ± 2.1 | 1.6 ± 1.4 | Not tested | 1.7 ± 1.8 |
| Median duration of last follow-up in yrs (range) | 1.2 (0.1–12.8) | 1.3 (0.1–6.3) | Not tested | 1.2 (0.1–12.8) |
| Functional outcome (mRS score)* | 0.0008 | |||
| 0–1 | 91 (91) | 70 (65) | 161 (78) | |
| 2 | 6 (6) | 25 (23) | 31 (15) | |
| 3 | 3 (3) | 5 (5) | 8 (4) | |
| 4 | 0 (0) | 2 (2) | 2 (1) | |
| 5 | 0 (0) | 4 (4) | 4 (2) | |
| 6 | 0 (0) | 1 (1) | 1 (0) | |
| Improved/unchanged | 96 (96) | 105 (98) | 0.43 | 201 (97) |
| Worse | 4 (4) | 2 (2) | 6 (3) |
*
Only available in 207 patients.