{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,2]],"date-time":"2026-10-02T17:54:35Z","timestamp":1790963675227,"version":"4.1.0"},"reference-count":51,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2025,9,1]],"date-time":"2025-09-01T00:00:00Z","timestamp":1756684800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Int Forum Allergy Rhinol"],"published-print":{"date-parts":[[2025,10]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Given the association between spontaneous cerebrospinal fluid (sCSF) leak and idiopathic intracranial hypertension (IIH), and the association of IIH and venous sinus stenosis (VSS), we sought to determine the prevalence of VSS in sCSF leak and the role of venous sinus stenting for sCSF leak.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A protocol was registered in PROSPERO [CRD42024568270]. A search was conducted in four electronic databases: Medline (Ovid), Embase, CINAHL, Web of Science, and Cochrane CENTRAL. Two reviewers independently screened citations and extracted data. Methodological quality was assessed using the Joanna Briggs Institute's critical appraisal tool. Data were pooled using a random effects model to calculate overall prevalence and relative risk (RR).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Fifteen studies met the final inclusion criteria, with a total of 372 patients presenting with sCSF leak. The pooled prevalence of VSS in patients with sCSF leak was 0.71 (95% CI: 0.56\u20130.83, <jats:italic>I<\/jats:italic><jats:sup>2<\/jats:sup> = 74%). VSS was three\u2010fold greater in patients with sCSF leak compared to those without, although this was not statistically significant (RR = 3.11; 95% CI: 0.64\u201315.27, <jats:italic>I<\/jats:italic><jats:sup>2<\/jats:sup> = 87%). Ninety percent of patients with VSS who underwent venous sinus stenting as adjunctive therapy to surgical repair of sCSF leak or for medically refractive IIH demonstrated resolution of symptoms without sCSF leak recurrence at last follow\u2010up.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>VSS is common in patients with sCSF leak, and adjunctive venous sinus stenting after surgical leak repair may benefit a subset of patients. Further studies are needed to clarify the role of venous sinus stenting in conjunction with surgical repair of leaks.<\/jats:p><\/jats:sec>","DOI":"10.1002\/alr.70026","type":"journal-article","created":{"date-parts":[[2025,9,1]],"date-time":"2025-09-01T14:59:51Z","timestamp":1756738791000},"page":"1136-1151","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Prevalence of Venous Sinus Stenosis in Spontaneous Cerebrospinal Fluid Leak and the Role for Venous Sinus Stenting: A Systematic Review and Meta\u2010Analysis"],"prefix":"10.1002","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0009-0006-9699-3108","authenticated-orcid":false,"given":"Jenny B.","family":"Xiao","sequence":"first","affiliation":[{"name":"Faculty of Medicine University of British Columbia  Vancouver British Columbia Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0524-6902","authenticated-orcid":false,"given":"Carlos","family":"Khalil","sequence":"additional","affiliation":[{"name":"Division of Rhinology Department of Otolaryngology \u2010 Head &amp; Neck Surgery St. Michael's Hospital, University of Toronto Toronto Ontario Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Helen","family":"Hsiao","sequence":"additional","affiliation":[{"name":"Faculty of Medicine University of British Columbia  Vancouver British Columbia Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Janiss","family":"Skulsampaopol","sequence":"additional","affiliation":[{"name":"Division of Neurosurgery Department of Surgery St. Michael's Hospital, University of Toronto Toronto Ontario Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daniel J.","family":"Lee","sequence":"additional","affiliation":[{"name":"Division of Rhinology Department of Otolaryngology \u2010 Head &amp; Neck Surgery St. Michael's Hospital, University of Toronto Toronto Ontario Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael D.","family":"Cusimano","sequence":"additional","affiliation":[{"name":"Division of Neurosurgery Department of Surgery St. Michael's Hospital, University of Toronto Toronto Ontario Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8473-4674","authenticated-orcid":false,"given":"John M.","family":"Lee","sequence":"additional","affiliation":[{"name":"Division of Rhinology Department of Otolaryngology \u2010 Head &amp; 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