{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,31]],"date-time":"2026-10-31T16:56:12Z","timestamp":1793465772259,"version":"4.5.0"},"reference-count":30,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"1","license":[{"start":{"date-parts":[[2018,3,8]],"date-time":"2018-03-08T00:00:00Z","timestamp":1520467200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["NEUROSURGERY","NEUROS"],"published-print":{"date-parts":[[2019,1]]},"abstract":"Abstract<\/jats:title>\n \n BACKGROUND<\/jats:title>\n Pial arterial supplies are sometimes found in patients with dural arteriovenous fistulas (DAVFs), though their characteristics have rarely been clarified.<\/jats:p>\n <\/jats:sec>\n \n OBJECTIVE<\/jats:title>\n To investigate the characteristics of pial arterial supplies in DAVFs and to discuss their pathophysiology and treatment.<\/jats:p>\n <\/jats:sec>\n \n METHODS<\/jats:title>\n Two hundred four consecutive patients with intracranial DAVFs over 11 yr were retrospectively reviewed. Clinical factors and radiological findings, including the presence of pial arterial supplies, were evaluated. Supply from a pial artery was classified into 2 categories: dilated pre-existing dural branches of pial arteries, and a \u201cpure\u201d pial supply.<\/jats:p>\n <\/jats:sec>\n \n RESULTS<\/jats:title>\n \n Twenty-three of 204 patients (11.3%) showed an additional pial arterial supply. Multivariate analysis identified 3 independent predictors of a pial arterial supply: younger age (\n P<\/jats:italic>\n \u00a0<\u00a0.0005), DAVF within the tentorium (\n P<\/jats:italic>\n \u00a0=\u00a0.0162), and presence of venous dilatation (\n P<\/jats:italic>\n \u00a0=\u00a0.0001). A dilated pre-existing dural branch of a pial artery was identified in 17 patients, while 8 had a pure pial supply. Of these 23 patients, 17 underwent interventional therapy. No postoperative intracranial hemorrhage or infarction occurred in patients with pial arterial supplies.\n <\/jats:p>\n <\/jats:sec>\n \n CONCLUSION<\/jats:title>\n An additional pial supply is not uncommon in DAVFs and may be explained by a rich physiological pial arterial supply to the dura mater from the posterior circulation, while potential angiogenesis due to venous hypertension remains speculative. Prior to interventional treatment for DAVFs, recognition of a pial arterial supply to the DAVF might influence the treatment strategy and could help avoid inadvertent retrograde embolization of brain supplying vessels through the pial network.<\/jats:p>\n <\/jats:sec>","DOI":"10.1093\/neuros\/nyy014","type":"journal-article","created":{"date-parts":[[2018,1,15]],"date-time":"2018-01-15T07:07:53Z","timestamp":1516000073000},"page":"104-115","source":"Crossref","is-referenced-by-count":65,"title":["Intracranial Dural Arteriovenous Fistulas with Pial Arterial Supply"],"prefix":"10.1227","volume":"84","author":[{"given":"Takahiro","family":"Osada","sequence":"first","affiliation":[{"name":"Division of Neuroradiology, Joint Depa-rtment of Medical Imaging, Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada"},{"name":"Department of Neurosurgery, Tokai University School of Medicine, Isehara, Kanagawa, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Timo","family":"Krings","sequence":"additional","affiliation":[{"name":"Division of Neuroradiology, Joint Depa-rtment of Medical Imaging, Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","published-online":{"date-parts":[[2019,1]]},"reference":[{"issue":"6","key":"bib1-20231011","doi-asserted-by":"crossref","first-page":"750","DOI":"10.1177\/1591019915609137","article-title":"Normal pio-dural arterial connections","volume":"21","author":"Bhogal","year":"2015","journal-title":"Interv Neuroradiol"},{"issue":"9","key":"bib2-20231011","doi-asserted-by":"crossref","first-page":"1798","DOI":"10.3174\/ajnr.A3519","article-title":"Tentorial dural fistulas: endovascular management and description of the medial dural-tentorial branch of the superior cerebellar 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