P-007 Intracranial pressure changes 3 months post venous sinus stenting for patients with IIH

Abstract

Objective We report the CSF opening pressure measurements obtained before and after venous sinus stenting in 50 patients with Idiopathic Intracranial Hypertension. Methods The CSF opening pressure was measured with a spinal tap 3 months before and 3 months after treatment. All data was prospectively collected and included patient demographics, weight (kg), body-mass index (BMI), acetazolamide daily dosage (mg), procedural details, complications, venous sinus pressures (mm Hg), trans-stenotic pressure gradient (mm Hg), transverse sinus symmetry, and type of venous sinus stenosis. Results The average pre-treatment CSF-OP was 37 cm water (range: 25–77) and the average post-treatment CSF-OP pressure was 20.2 cm water (range: 10–36), with an average reduction of 16.8 cm water (p Conclusions In summary, we provided evidence that there is significant decrease in CSF-OP pressure in IIH patients 3 months after VSS, independent of acetazolamide usage or weight loss. Disclosures A. Patsalides: None. C. Oliveira: None. M. Dinkin: None.