Venous pressures in 40 patients with IIH with papilledema requiring only 1 stent placement procedure versus 6 (all with papilledema at first stent) requiring a second stent placement procedurea
| Superior Sagittal Sinus Pre-stent (mm Hg) | Superior Sagittal Sinus Post-stent (mm Hg) | Gradient Pre-stent (mm Hg) | Gradient Post-stent (mm Hg) | |
|---|---|---|---|---|
| Single stent | 31 | 17 | 19 | 0.4 |
| (n = 40, all with papilledema) | (15–94) | (11–33) | (6–36) | (0–5) |
| (n = 40) | (n = 39) | (n = 40) | (n = 40) | |
| Repeat stents, on 1st stent | 43 | 18 | 29 | 2.8 |
| (n = 6, all with papilledema prior to first stent) | (18–56) | (11–32) | (15–41) | (0–14) |
| (n = 6) | (n = 5) | (n = 6) | (n = 6) |
a Ranges indicated in parentheses.