{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,3]],"date-time":"2026-10-03T18:09:42Z","timestamp":1791050982831,"version":"4.1.0"},"reference-count":66,"publisher":"Oxford University Press (OUP)","issue":"4","license":[{"start":{"date-parts":[[2026,7,7]],"date-time":"2026-07-07T00:00:00Z","timestamp":1783382400000},"content-version":"vor","delay-in-days":187,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Italian Foundation for Headache Research"},{"name":"Italian Neurological Association for Headache Research"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,7,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Accumulating evidence challenges the traditional distinction between migraine and idiopathic intracranial hypertension (IIH). We tested whether impaired CSF volume\/pressure regulation driven by dural venous sinus stenosis represents a shared substrate. Brain MRI and magnetic resonance venography scans from 161 consecutive patients\u2014migraine without aura (MwoA, n = 89), migraine with aura (MwA, n = 36) and IIH (n = 36)\u2014were retrospectively analysed and compared with 37 prospectively recruited healthy controls. An Extended Combined Conduit Score\u2014designed to quantify the degree and extent of venous-sinus narrowing, with higher values indicating greater outflow impairment, and also evaluating the superior sagittal sinus\u2014quantified stenosis. Additional neuroradiological markers of raised intracranial pressure (empty sella, posterior globe flattening and optic nerve sheath diameter) were recorded. A receiver operating characteristic analysis defined the optimal stenosis degree threshold for distinguishing patients from controls, after which prevalence comparisons were performed. Median Extended Combined Conduit Score increased step wise from controls (2, interquartile range 1\u20133) to MwoA (3, 2\u20134), MwA (3, 3\u20134) and IIH (6, 5\u20136) (P &amp;lt; 0.001). Both migraine groups scored higher than controls (P &amp;lt; 0.001) and lower than IIH (P &amp;lt; 0.001). The area under the receiver operating characteristic curve was 0.786 (95% confidence interval 0.716\u20130.856); a cut-off \u22653 provided 74.5% sensitivity and 73.0% specificity. Using this threshold, venous stenosis was more frequent in MwoA and MwA than in controls (each P &amp;lt; 0.001) and highest in IIH (P &amp;lt; 0.001 versus all); MwA exceeded MwoA (P = 0.007) and was comparable to IIH (P = 0.187). Bilateral stenosis occurred in 0% of controls, nearly 25% of patients with migraine (P &amp;lt; 0.001 versus controls) and 77.8% of IIH patients (P &amp;lt; 0.001). Empty sella was more common in MwoA (P = 0.004) and MwA (P = 0.025) than in controls, and markedly enriched in IIH (P &amp;lt; 0.001 versus all). Other radiological markers were similarly more prevalent in IIH (all P &amp;lt; 0.001) showing no additional significant between-group differences. Findings support a pathogenetic continuum linking MwoA, MwA and IIH, challenging the diagnostic primacy of papilledema, the rarity of IIH without it, and the perceived irrelevance of unilateral sinus narrowing. As already observed in IIH, an impaired intracranial volume\/pressure regulation appears a necessary though not sufficient condition for migraine development; a \u2018primary\u2019 predisposition to migraine, likely multifactorial and widely variable among individuals and in the same individual over time, is required for typical migraine pain to develop, also modulating its frequency. Future studies should assess whether targeting intracranial pressure, thus potentially preventing calcitonin gene-related peptide release, may complement or substitute calcitonin gene-related peptide based therapies in migraine patients.<\/jats:p>","DOI":"10.1093\/braincomms\/fcag259","type":"journal-article","created":{"date-parts":[[2026,7,6]],"date-time":"2026-07-06T11:26:41Z","timestamp":1783337201000},"source":"Crossref","is-referenced-by-count":1,"title":["Papilledema is not the point: intracranial pressure dysregulation as a common pathway in migraine and idiopathic intracranial hypertension"],"prefix":"10.1093","volume":"8","author":[{"given":"Simone","family":"Braca","sequence":"first","affiliation":[{"name":"Headache Centre, Department of Neurological Sciences, Reproductive Sciences and Odontostomatology, University of Naples \u2018Federico II\u2019 , 80131 Naples ,","place":["Italy"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Giuseppe","family":"Cardillo","sequence":"additional","affiliation":[{"name":"MEDyLAB s.r.l. , Bologna 40124 ,","place":["Italy"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lorenzo","family":"Ugga","sequence":"additional","affiliation":[{"name":"Department of Advanced Medical and Surgical Sciences, University of Campania \u2018Luigi Vanvitelli\u2019 , 80138 Naples ,","place":["Italy"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Serena","family":"Capasso","sequence":"additional","affiliation":[{"name":"Department of Advanced Medical and Surgical Sciences, University of Campania \u2018Luigi Vanvitelli\u2019 , 80138 Naples ,","place":["Italy"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Antonio","family":"Meo","sequence":"additional","affiliation":[{"name":"Neurology Unit, Department of Translational Medicine, University of Eastern Piedmont Amedeo Avogadro School of Medicine , 28100 Novara ,","place":["Italy"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Angelo","family":"Miele","sequence":"additional","affiliation":[{"name":"Headache Centre, Department of Neurological Sciences, Reproductive Sciences and Odontostomatology, University of Naples \u2018Federico II\u2019 , 80131 Naples ,","place":["Italy"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mattia","family":"Sansone","sequence":"additional","affiliation":[{"name":"Department of Neurology and Stroke Unit, Headache Centre, \u2018San Giuseppe Moscati\u2019 Hospital , Aversa 81031 ,","place":["Italy"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guido","family":"Ferra","sequence":"additional","affiliation":[{"name":"Headache Centre, Department of Neurological Sciences, Reproductive Sciences and Odontostomatology, University of Naples \u2018Federico II\u2019 , 80131 Naples ,","place":["Italy"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Angelo","family":"Ranieri","sequence":"additional","affiliation":[{"name":"Division of Neurology and Stroke Unit, \u2018Antonio Cardarelli\u2019 Hospital , 80131 Naples ,","place":["Italy"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cinzia Valeria","family":"Russo","sequence":"additional","affiliation":[{"name":"Headache Centre, Department of Neurological Sciences, Reproductive Sciences and Odontostomatology, University of Naples \u2018Federico II\u2019 , 80131 Naples ,","place":["Italy"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Antonio","family":"Stornaiuolo","sequence":"additional","affiliation":[{"name":"Headache Centre, Department of Neurological Sciences, Reproductive Sciences and Odontostomatology, University of Naples \u2018Federico II\u2019 , 80131 Naples ,","place":["Italy"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gennaro","family":"Cretella","sequence":"additional","affiliation":[{"name":"Headache Centre, Department of Neurological Sciences, Reproductive Sciences and Odontostomatology, University of Naples \u2018Federico II\u2019 , 80131 Naples ,","place":["Italy"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Caterina","family":"Giannini","sequence":"additional","affiliation":[{"name":"Headache Centre, Department of Neurological Sciences, Reproductive Sciences and Odontostomatology, University of Naples \u2018Federico II\u2019 , 80131 Naples ,","place":["Italy"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Roberto","family":"De Simone","sequence":"additional","affiliation":[{"name":"Headache Centre, Department of Neurological Sciences, Reproductive Sciences and Odontostomatology, University of Naples \u2018Federico II\u2019 , 80131 Naples 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