Patient AVM grades, embolization results, and adjuvant treatments
| AVM S-M Grade | No. Patients | % Complete Obliteration Using Embolization (n) | Clinical Complications (of Endovascular Procedures) | Surgery | Radiosurgery |
|---|---|---|---|---|---|
| 1 | 3 | 67% (2) | 1 Elective | ||
| 2 | 5 | 60% (3) | 2 | ||
| 3 | 9 | 67% (6) | 3 Intracerebral hemorrhage, 1 subarachnoid hemorrhage | 2 Urgent | 0 |
| 4 | 14 | 29% (4) | 2 Intracerebral hemorrhage, 1 extravasation of Onyx | 6 | |
| 5 | 12 | 8% (1) | 2 Elective | 1 | |
| Total | 43 |
Note:—Twenty-nine out of 43 patients have concluded endovascular treatments; the remaining 14 patients are scheduled for further endovascular treatments.