Article Figures & Data
Figures
- Fig 1.
A, Example of a stenosis due to extrinsic compression (long narrowed segment, arrow). B, Example of an intrinsic stenosis caused by a large arachnoid granulation (arrow). C, Example of an intrinsic stenosis caused by a septal band (arrow).
Tables
- Table 1:
Clinical parameters in patients with IIH before and after transverse sinus stent placement
Clinical Parameter Before Stent After Stent Mild Moderate Severe Mild Moderate Severe Papilledema 11a 27 7 0b 0 0 Visual acuity loss 4 4 5 3 1 0 Visual field loss 19c 6 5 5 2 0 Headache 6 22 15 0 8d 0 Transient visual obscurations 3 10 6 0 0 0 Pulsatile tinnitus 6 9 2 0 0 0 Diplopia 3 2 1 0 0 0 -
a One patient with optic atrophy.
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b Four patients with optic atrophy.
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c Twelve patients with only enlarged blind spots.
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d Six patients who were re-stented.
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- Table 2:
Type of transverse sinus stenosis found at direct venography in 52 patients with IIH
Type of Stenosis No. Intrinsic/extrinsic of both sinuses 16 Intrinsic/extrinsic of dominant sinus, hypoplastic sinus 8 Intrinsic of both sinuses 8 Intrinsic of dominant, hypoplastic sinus 9 Extrinsic of both sinuses 7 Extrinsic of dominant, hypoplastic sinus 4 - Table 3:
Venous pressures before and after transverse sinus stent placement in 46 patients with IIH with and 6 without papilledemaa
Superior Sagittal Sinus Pressure Pre-stent (mm Hg) Superior Sagittal Sinus Pressure Post-stent (mm Hg) Gradient Pre-stent(mm Hg) Gradient Post-stent(mm Hg) With papilledema 34 16 20 0.7 (n = 46) (15–94) (11–33) (6–41) (0–14) (n = 46) (n = 44) (n = 46) (n = 46) Without papilledema 25 11 12 0 (n = 6) (18–34) (7–14) (4–15) (n = 6) (n = 6) (n = 6) (n = 4) -
a Ranges indicated in parentheses.
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- Table 4:
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.
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