{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,7]],"date-time":"2026-10-07T13:01:43Z","timestamp":1791378103734,"version":"4.3.2"},"reference-count":44,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2024,3]]},"abstract":"<jats:sec>\n                    <jats:title>OBJECTIVE<\/jats:title>\n                    <jats:p>Borden-Shucart type I dural arteriovenous fistulas (dAVFs) lack cortical venous drainage and occasionally necessitate intervention depending on patient symptoms. Conversion is the rare transformation of a low-grade dAVF to a higher grade. Factors associated with increased risk of dAVF conversion to a higher grade are poorly understood. The authors hypothesized that partial treatment of type I dAVFs is an independent risk factor for conversion.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>METHODS<\/jats:title>\n                    <jats:p>The multicenter Consortium for Dural Arteriovenous Fistula Outcomes Research database was used to perform a retrospective analysis of all patients with type I dAVFs.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>RESULTS<\/jats:title>\n                    <jats:p>Three hundred fifty-eight (33.2%) of 1077 patients had type I dAVFs. Of those 358 patients, 206 received endovascular treatment and 131 were not treated. Two (2.2%) of 91 patients receiving partial endovascular treatment for a low-grade dAVF experienced conversion to a higher grade, 2 (1.5%) of 131 who were not treated experienced conversion, and none (0%) of 115 patients who received complete endovascular treatment experienced dAVF conversion. The majority of converted dAVFs localized to the transverse-sigmoid sinus and all received embolization as part of their treatment.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>CONCLUSIONS<\/jats:title>\n                    <jats:p>Partial treatment of type I dAVFs does not appear to be significantly associated with conversion to a higher grade.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3171\/2024.1.focus23745","type":"journal-article","created":{"date-parts":[[2024,3,1]],"date-time":"2024-03-01T07:00:58Z","timestamp":1709276458000},"page":"E8","source":"Crossref","is-referenced-by-count":6,"title":["Dural arteriovenous fistulas are not observed to convert to a higher grade after partial embolization"],"prefix":"10.3171","volume":"56","author":[{"given":"Erin","family":"Walker","sequence":"first","affiliation":[{"name":"University of South Carolina School of Medicine, Greenville, South Carolina;"},{"name":"Department of Neurological Surgery, Washington University in St. Louis, Missouri;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anja","family":"Srienc","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, Washington University in St. Louis, Missouri;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daphne","family":"Lew","sequence":"additional","affiliation":[{"name":"Center for Biostatistics and Data Science, Washington University in St. Louis School of Medicine, St. Louis, Missouri;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ridhima","family":"Guniganti","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, Washington University in St. Louis, Missouri;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Giuseppe","family":"Lanzino","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Mayo Clinic, Rochester, Minnesota;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Waleed","family":"Brinjikji","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Mayo Clinic, Rochester, Minnesota;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Minako","family":"Hayakawa","sequence":"additional","affiliation":[{"name":"Department of Radiology and Interventional Radiology, University of Iowa Hospitals and Clinics, Iowa City, Iowa;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Edgar A.","family":"Samaniego","sequence":"additional","affiliation":[{"name":"Department of Neurology, University of Iowa Hospitals and Clinics, Iowa City, Iowa;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Colin P.","family":"Derdeyn","sequence":"additional","affiliation":[{"name":"Department of Radiology and Interventional Radiology, University of Iowa Hospitals and Clinics, Iowa City, Iowa;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rose","family":"Du","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Brigham and Women\u2019s Hospital, Boston, Massachusetts;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rosalind","family":"Lai","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Brigham and Women\u2019s Hospital, Boston, Massachusetts;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jason P.","family":"Sheehan","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, University of Virginia, Charlottesville, Virginia;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Robert M.","family":"Starke","sequence":"additional","affiliation":[{"name":"Neurosurgery Department, University of Miami Miller School of Medicine, Miami, 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Arizona;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael T.","family":"Lawton","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Barrow Neurological Institute, Phoenix, Arizona;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Louis J.","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, University of Washington, Seattle, Washington;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael","family":"Levitt","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, University of Washington, Seattle, Washington;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sepideh","family":"Amin-Hanjani","sequence":"additional","affiliation":[{"name":"Neurosurgery Department, University Hospitals\/Case Western Reserve University, Cleveland, Ohio;"},{"name":"Department of Neurosurgery, University of Illinois College of Medicine at Chicago, Illinois;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ali","family":"Alaraj","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, University of Illinois College of Medicine at Chicago, Illinois;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ethan","family":"Winkler","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, University of California, San Francisco, California;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"W. Christopher","family":"Fox","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, University of Florida, Gainesville, Florida;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Adam","family":"Polifka","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, Mayo Clinic, Jacksonville, Florida;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Samuel","family":"Hall","sequence":"additional","affiliation":[{"name":"Wessex Neurological Centre, Southampton General Hospital, Southampton, United Kingdom;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Diederik","family":"Bulters","sequence":"additional","affiliation":[{"name":"Wessex Neurological Centre, Southampton General Hospital, Southampton, United Kingdom;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrew","family":"Durnford","sequence":"additional","affiliation":[{"name":"Wessex Neurological Centre, Southampton General Hospital, Southampton, United Kingdom;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Junichiro","family":"Satomi","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, University of Tokushima, Japan;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yoshiteru","family":"Tada","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, University of Tokushima, Japan;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J. Marc C.","family":"van Dijk","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, University of Groningen, The Netherlands; and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Adriaan R. E.","family":"Potgieser","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, University of Groningen, The Netherlands; and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ching-Jen","family":"Chen","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, University of Texas\u2013Houston, Texas"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrea","family":"Becerril-Gaitan","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, University of Texas\u2013Houston, Texas"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joshua W.","family":"Osbun","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, Washington University in St. Louis, Missouri;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gregory J.","family":"Zipfel","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, Washington University in St. Louis, Missouri;"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1754","reference":[{"issue":"2","key":"b1","series-title":"J Clin Neurosci","first-page":"147","article-title":"Clinical characteristics of dural arteriovenous fistula","volume":"9","author":"Kim MS","year":"2002","unstructured":"Kim MS, Han DH, Kwon OK, Oh CW, Han MH. 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J Neurosurg. 1994;81(4):531\u2013538."},{"issue":"6","key":"b4","series-title":"Neurosurgery","first-page":"1111","article-title":"Observation versus intervention for low-grade intracranial dural arteriovenous fistulas","volume":"88","author":"Chen CJ","year":"2021","unstructured":"Chen CJ, Buell TJ, Ding D,  Observation versus intervention for low-grade intracranial dural arteriovenous fistulas. Neurosurgery. 2021;88(6):1111\u20131120."},{"issue":"5","key":"b5","series-title":"J Neurosurg","first-page":"830","article-title":"The validity of classification for the clinical presentation of intracranial dural arteriovenous fistulas","volume":"85","author":"Davies MA","year":"1996","unstructured":"Davies MA, TerBrugge K, Willinsky R, Coyne T, Saleh J, Wallace MC. The validity of classification for the clinical presentation of intracranial dural arteriovenous fistulas. 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