Treatments and outcomes stratified by fistula complexity
| All Subjects n = 25 | Single-Hole Fistulas n = 9 | Multi-Hole Fistulas n = 16 | P Value | |
|---|---|---|---|---|
| Treatments | ||||
| Mean age of first treatment ± SD | 4.9 ± 6.5 y | 9.4 ± 7.3 y | 2.3 ± 4.5 y | .021 |
| Median age (range) of first treatment | 1.7 y (1 day to 25 y) | 7 y (3–25 y) | 0.62 y (1 day to 16 y) | |
| Median treatment procedures (range) | 2 (1–5) | 2 (1–2) | 3 (1–5) | .003 |
| Endovascular treatments only | 60% | 67% | 56% | .69 |
| Any periprocedural complication | 60% | 22% | 81% | .009 |
| Any symptomatic complication | 32% | 22% | 38% | .66 |
| Outcomes at last follow-up | ||||
| Mean follow-up duration ± SD | 3.3 ± 3.3 y | 4.3 ± 4.1 y | 2.7 ± 2.6 y | .33 |
| Median (range) follow-up duration | 2 y (1 day to 13 y) | 4 y (2 days to 13 y) | 1.8 y (1 day to 7 y) | |
| Occlusion of all targeted arteriovenous shunts | 72% | 78% | 69% | 1.0 |
| Elimination of all arteriovenous shunting | 60% | 78% | 38% | .097 |
| White matter calcifications | 25% | 0% | 35% | .26 |
| Normal neurologic examination | 48% | 100% | 19% | .0001 |
| Median last mRS (range) | 1 (0–6) | 0 (0) | 2 (0–6) | <.0001 |
| Good outcome (last mRS 0–2) | 72% | 100% | 56% | .027 |