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  • Title: Dural Venous Sinus Stenting in Idiopathic Intracranial Hypertension: A National Database Study of 541 Patients.
    Author: Nia AM, Srinivasan VM, Lall R, Kan P.
    Journal: World Neurosurg; 2022 Nov; 167():e451-e455. PubMed ID: 35973522.
    Abstract:
    BACKGROUND: Dural venous sinus stenting (VSS) is an effective intervention for patients with idiopathic intracranial hypertension (IIH) refractory to medical treatment. Our goal was to evaluate the efficacy by utilizing a large multi-institutional sample. METHODS: Five hundred forty-one patients >18 years old who underwent VSS within 3 years of IIH diagnosis were queried using Current Procedural Terminology and International Classification of Diseases, Tenth Revision codes from the TriNetX Analytics Network. Patient demographics, baseline symptoms, procedures, and clinical outcomes were evaluated within 1 year postoperatively. Outcomes examined were headache, tinnitus, blindness/low vision, optic nerve sheath fenestration (ONSF), cerebrospinal fluid (CSF) shunt, and use of medications (acetazolamide, methazolamide, furosemide, topiramate, tricyclic antidepressants, and valproate) for IIH. Prestent and poststent data were compared using Fisher exact test, and the odds ratios were computed using the Baptista-Pike method. RESULTS: The mean age at VSS was 36.7 ± 10.6; 92% were female, 65% of patients were Caucasian, 25% were Black/African American, 1% were Asian, and 9% were of other/unknown race. Within the 1-year follow-up, acetazolamide and topiramate use were significantly reduced post-VSS (P < 0.0001∗; odds ratio, 0.45; confidence interval, 0.35-0.57 and P = 0.03∗; odds ratio, 0.71; confidence interval, 0.52-0.95, respectively). Also, headaches, visual disturbance, dizziness/giddiness, and tinnitus significantly improved post-VSS (P < 0.005∗). Finally, the number of CSF shunt procedures and ONSF procedures demonstrated no significant change post-VSS (P > 0.05). CONCLUSIONS: VSS is an effective and safe procedure resulting in significant improvement of headaches, visual impairment, dizziness, and tinnitus, acetazolamide and topiramate usage were lower after VSS in patients with IIH. The paucity of pre-VSS and post-VSS CSF shunt and ONSF procedure data does not provide enough evidence to establish significance.
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