{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,3]],"date-time":"2026-06-03T01:03:39Z","timestamp":1780448619713,"version":"3.54.1"},"reference-count":34,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"22","license":[{"start":{"date-parts":[[2026,6,1]],"date-time":"2026-06-01T00:00:00Z","timestamp":1780272000000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Neurosurg Case Lessons"],"published-print":{"date-parts":[[2026,6,1]]},"abstract":"\n BACKGROUND<\/jats:title>\n Endovascular internal trapping is the first-line treatment for ruptured vertebral artery dissection (VAD). However, when critical branches such as the posterior inferior cerebellar artery (PICA) or the anterior spinal artery (ASA) are involved with the dissected segment, the risk of surgery-related ischemia is high.<\/jats:p>\n <\/jats:sec>\n \n OBSERVATIONS<\/jats:title>\n Two patients with ruptured VAD involving critical branches were treated using the temporary frame coil technique. In the first case, a distal temporary frame coil protected the PICA origin during proximal coil embolization and was subsequently retrieved. In the second case, the temporary frame coil protected the distal ASA origin during coil embolization of the dissected segment and was subsequently retrieved. In both cases, antegrade flow into the dissected segment was eliminated, while perfusion of the distal PICA or the ASA was maintained via the contralateral vertebral artery. No cerebral infarction or permanent neurological deficits occurred, and follow-up angiography confirmed durable occlusion without recurrence.<\/jats:p>\n <\/jats:sec>\n \n LESSONS<\/jats:title>\n The temporary frame coil technique allows parent artery occlusion while preserving critical branch vessels using coils alone. This approach may treat ruptured VAD in the acute hemorrhagic phase without additional intravascular devices or dual antiplatelet therapy.<\/jats:p>\n \n https:\/\/thejns.org\/doi\/10.3171\/CASE2660<\/jats:ext-link>\n <\/jats:p>\n <\/jats:sec>","DOI":"10.3171\/case2660","type":"journal-article","created":{"date-parts":[[2026,5,27]],"date-time":"2026-05-27T00:01:00Z","timestamp":1779840060000},"source":"Crossref","is-referenced-by-count":0,"title":["Temporary frame coil technique for ruptured vertebral artery dissection involving major branch presentation: illustrative cases"],"prefix":"10.3171","volume":"11","author":[{"given":"Koki","family":"Nakazato","sequence":"first","affiliation":[{"name":"Department of Neurosurgery, Tatebayashi Kosei General Hospital, Tatebayashi, Gunma"},{"name":"Department of Neurosurgery, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takayuki","family":"Imai","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Tatebayashi Kosei General Hospital, Tatebayashi, Gunma"},{"name":"Department of Neurosurgery, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takahiro","family":"Kawashima","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Tatebayashi Kosei General Hospital, Tatebayashi, Gunma"},{"name":"Department of Neurosurgery, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Masahiro","family":"Matsumoto","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Tatebayashi Kosei General Hospital, Tatebayashi, Gunma"},{"name":"Department of Neurosurgery, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1754","reference":[{"issue":"4","key":"bib1","series-title":"Interv Neuroradiol","first-page":"469","article-title":"Intracranial vertebral artery dissections: evolving perspectives","volume":"18","author":"Ali","year":"2012","unstructured":"Ali MSAmenta PSStarke RMIntracranial vertebral artery dissections: evolving perspectives. Interv Neuroradiol. 2012;18(4):469-483. doi:10.1177\/159101991201800414"},{"issue":"1","key":"bib2","series-title":"J Neurosurg","first-page":"25","article-title":"Intracranial vertebral artery dissection with subarachnoid hemorrhage: clinical characteristics and outcomes in conservatively treated patients","volume":"101","author":"Yamada","year":"2004","unstructured":"Yamada MKitahara TKurata AFujii KMiyasaka Y.Intracranial vertebral artery dissection with subarachnoid hemorrhage: clinical characteristics and outcomes in conservatively treated patients. J Neurosurg. 2004;101(1):25-30. doi:10.3171\/jns.2004.101.1.0025"},{"issue":"5","key":"bib3","series-title":"Neurosurgery","first-page":"905","article-title":"Recurrent subarachnoid hemorrhage from untreated ruptured vertebrobasilar dissecting aneurysms","volume":"36","author":"Mizutani","year":"1995","unstructured":"Mizutani TAruga TKirino TMiki YSaito ITsuchida T.Recurrent subarachnoid hemorrhage from untreated ruptured vertebrobasilar dissecting aneurysms. 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Korean J Radiol. 2013;14(2):329-336. doi:10.3348\/kjr.2013.14.2.329"},{"issue":"2","key":"bib16","series-title":"Neurol India","first-page":"643","article-title":"Balloon-assisted coiling of intracranial aneurysms: technical details and evaluation of local complications","volume":"70","author":"Vignesh","year":"2022","unstructured":"Vignesh SPrasad SNSingh VBalloon-assisted coiling of intracranial aneurysms: technical details and evaluation of local complications. Neurol India. 2022;70(2):643-651. doi:10.4103\/0028-3886.344626"},{"issue":"1","key":"bib17","series-title":"J Neuroendovasc Ther","first-page":"2025-0146","article-title":"A cautionary tale of balloon assistance: early dissecting aneurysm formation after posterior communicating artery aneurysm coiling","volume":"20","author":"Choudhri","year":"2026","unstructured":"Choudhri OAhmed WBorja AJChen PR.A cautionary tale of balloon assistance: early dissecting aneurysm formation after posterior communicating artery aneurysm coiling. J Neuroendovasc Ther. 2026;20(1):2025-0146. doi:10.5797\/jnet.cr.2025-0146"},{"issue":"4","key":"bib1","series-title":"Interv Neuroradiol","first-page":"469","article-title":"Intracranial vertebral artery dissections: evolving perspectives","volume":"18","author":"Ali","year":"2012","unstructured":"Ali MSAmenta PSStarke RMIntracranial vertebral artery dissections: evolving perspectives. Interv Neuroradiol. 2012;18(4):469-483. doi:10.1177\/159101991201800414"},{"issue":"1","key":"bib2","series-title":"J Neurosurg","first-page":"25","article-title":"Intracranial vertebral artery dissection with subarachnoid hemorrhage: clinical characteristics and outcomes in conservatively treated patients","volume":"101","author":"Yamada","year":"2004","unstructured":"Yamada MKitahara TKurata AFujii KMiyasaka Y.Intracranial vertebral artery dissection with subarachnoid hemorrhage: clinical characteristics and outcomes in conservatively treated patients. J Neurosurg. 2004;101(1):25-30. doi:10.3171\/jns.2004.101.1.0025"},{"issue":"5","key":"bib3","series-title":"Neurosurgery","first-page":"905","article-title":"Recurrent subarachnoid hemorrhage from untreated ruptured vertebrobasilar dissecting aneurysms","volume":"36","author":"Mizutani","year":"1995","unstructured":"Mizutani TAruga TKirino TMiki YSaito ITsuchida T.Recurrent subarachnoid hemorrhage from untreated ruptured vertebrobasilar dissecting aneurysms. 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Neurol Med Chir (Tokyo). 2019;59(1):10-18. doi:10.2176\/nmc.st.2018-0191"},{"issue":"1","key":"bib5","series-title":"J Neurosurg","first-page":"107","article-title":"Predictive factors of medullary infarction after endovascular internal trapping using coils for vertebral artery dissecting aneurysms","volume":"129","author":"Aihara","year":"2018","unstructured":"Aihara MNaito IShimizu TPredictive factors of medullary infarction after endovascular internal trapping using coils for vertebral artery dissecting aneurysms. J Neurosurg. 2018;129(1):107-113. doi:10.3171\/2017.2.JNS162916"},{"issue":"11","key":"bib6","series-title":"J Neurointerv Surg","first-page":"1064","article-title":"Flow diverter treatment of intracranial vertebral artery dissecting pseudoaneurysms","volume":"9","author":"Cerejo","year":"2017","unstructured":"Cerejo RBain MMoore NFlow diverter treatment of intracranial vertebral artery dissecting pseudoaneurysms. J Neurointerv Surg. 2017;9(11):1064-1068. doi:10.1136\/neurintsurg-2017-013020"},{"issue":"2","key":"bib7","series-title":"Interv Neuroradiol","first-page":"163","article-title":"Endovascular treatment for ruptured vertebral dissecting aneurysms involving PICA: reconstruction or deconstruction? experience from 16 patients","volume":"27","author":"Kong","year":"2021","unstructured":"Kong XSun ZLing CEndovascular treatment for ruptured vertebral dissecting aneurysms involving PICA: reconstruction or deconstruction? experience from 16 patients. Interv Neuroradiol. 2021;27(2):163-171. doi:10.1177\/1591019920970030"},{"issue":"2","key":"bib8","series-title":"AJNR Am J Neuroradiol","first-page":"348","article-title":"Stenting from the vertebral artery to the posterior inferior cerebellar artery","volume":"33","author":"Kim","year":"2012","unstructured":"Kim MJChung JKim SLStenting from the vertebral artery to the posterior inferior cerebellar artery. 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Front Neurol. 2021;12:700164. doi:10.3389\/fneur.2021.700164"},{"issue":"6","key":"bib11","series-title":"Cureus","first-page":"e85650","article-title":"A Case of an vertebral artery dissecting aneurysm involving the posterior inferior cerebellar artery treated with aneurysmal embolization and proximal parent artery occlusion under balloon protection via the contralateral vertebral artery","volume":"17","author":"Nakamura","year":"2025","unstructured":"Nakamura THanaoka YKoyama JIMurata TKuroiwa MHoriuchi T.A Case of an vertebral artery dissecting aneurysm involving the posterior inferior cerebellar artery treated with aneurysmal embolization and proximal parent artery occlusion under balloon protection via the contralateral vertebral artery. Cureus. 2025;17(6):e85650. doi:10.7759\/cureus.85650"},{"issue":"10","key":"bib12","series-title":"AJNR Am J Neuroradiol","first-page":"2017","article-title":"Intraprocedural aneurysmal rupture during coil embolization of brain aneurysms: role of balloon-assisted coiling","volume":"33","author":"Santillan","year":"2012","unstructured":"Santillan AGobin YPGreenberg EDIntraprocedural aneurysmal rupture during coil embolization of brain aneurysms: role of balloon-assisted coiling. AJNR Am J Neuroradiol. 2012;33(10):2017-2021. doi:10.3174\/ajnr.A3061"},{"issue":"2","key":"bib13","series-title":"J Neurosurg","first-page":"183","article-title":"Endovascular treatment of vertebral artery dissections and pseudoaneurysms","volume":"79","author":"Halbach","year":"1993","unstructured":"Halbach VVHigashida RTDowd CFEndovascular treatment of vertebral artery dissections and pseudoaneurysms. J Neurosurg. 1993;79(2):183-191. doi:10.3171\/jns.1993.79.2.0183"},{"issue":"2","key":"bib14","series-title":"Neurointervention","first-page":"115","article-title":"Parent artery complex coil protection for side-branched wide-neck aneurysms","volume":"17","author":"Sato","year":"2022","unstructured":"Sato KAoki HJinguji SSeto HKobayashi T.Parent artery complex coil protection for side-branched wide-neck aneurysms. Neurointervention. 2022;17(2):115-120. doi:10.5469\/neuroint.2022.00136"},{"issue":"2","key":"bib15","series-title":"Korean J Radiol","first-page":"329","article-title":"Coil-protected embolization technique for a branch-incorporated aneurysm","volume":"14","author":"Ihn","year":"2013","unstructured":"Ihn YKKim BMSuh SHKim DJKim DI.Coil-protected embolization technique for a branch-incorporated aneurysm. Korean J Radiol. 2013;14(2):329-336. doi:10.3348\/kjr.2013.14.2.329"},{"issue":"2","key":"bib16","series-title":"Neurol India","first-page":"643","article-title":"Balloon-assisted coiling of intracranial aneurysms: technical details and evaluation of local complications","volume":"70","author":"Vignesh","year":"2022","unstructured":"Vignesh SPrasad SNSingh VBalloon-assisted coiling of intracranial aneurysms: technical details and evaluation of local complications. Neurol India. 2022;70(2):643-651. doi:10.4103\/0028-3886.344626"},{"issue":"1","key":"bib17","series-title":"J Neuroendovasc Ther","first-page":"2025-0146","article-title":"A cautionary tale of balloon assistance: early dissecting aneurysm formation after posterior communicating artery aneurysm coiling","volume":"20","author":"Choudhri","year":"2026","unstructured":"Choudhri OAhmed WBorja AJChen PR.A cautionary tale of balloon assistance: early dissecting aneurysm formation after posterior communicating artery aneurysm coiling. 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