====== Anterior spinal artery aneurysm ====== Rupture of an isolated [[spinal artery aneurysm]] is a rare cause of [[subarachnoid haemorrhage]] (SAH) accounting for less than 1% of all cases reported in the literature ((van Gijn J, Kerr RS, Rinkel GJ. Subarachnoid haemorrhage. Lancet. 2007 Jan 27;369(9558):306-18. doi: 10.1016/S0140-6736(07)60153-6. PMID: 17258671.)). Aneurysms of the anterior spinal artery are extremely rare. Unlike intracranial [[saccular aneurysm]]s, they do not occur at branch points, are typically [[pseudoaneurysm]]s, and rupture secondary to a [[dissection]] ((Gonzalez LF, Zabramski JM, Tabrizi P, Wallace RC, Massand MG, Spetzler RF. Spontaneous spinal subarachnoid hemorrhage secondary to spinal aneurysms: diagnosis and treatment paradigm. Neurosurgery. 2005;57:1127-1131.)) ((Lavoie P, Raymond J, Roy D, Guilbert F, Weill A. Selective treatment of an anterior spinal artery aneurysm with endosaccular coil therapy. Case report. J Neurosurg Spine. 2007;6:460-464.)) ((Romero DG, Batista AL, Gentric JC, Raymond J, Roy D, Weill A. Ruptured isolated spinal artery aneurysms report of two cases and review of the literature. Intervent Neuroradiol. 2014;20:774-780.)) ((Dabus G, Tosello RT, Pereira BJ, Linfante I, Piske RL. Dissecting spinal aneurysms: conservative management as a therapeutic option. J Neurointervent Surg. 2018;10:451-454.)) ((Garcia CA, Dulcey S, Dulcey J. Ruptured aneurysm of the spinal artery of Adamkiewicz during pregnancy. Neurology. 1979;29:394-398.)) ((Vishteh AG, Brown AP, Spetzler RF. Aneurysm of the intradural artery of Adamkiewicz treated with muslin wrapping: technical case report. Neurosurgery. 1997;40:207-209.)) ((Berlis A, Scheufler K-M, Schmahl C, Rauer S, Götz F, Schumacher M. Solitary spinal artery aneurysms as a rare source of spinal subarachnoid hemorrhage: potential etiology and treatment strategy. Am J Neuroradiol. 2005;26:405-410.)) ((Massand MG, Wallace RC, Gonzalez LF, Zabramski JM, Spetzler RF. Subarachnoid hemorrhage due to isolated spinal artery aneurysm in four patients. Am J Neuroradiol. 2005;26: 2415-2419.)) ((Iihoshi S, Miyata K, Murakami T, Kaneko T, Koyanagi I. Dissection aneurysm of the radiculomedullary branch of the artery of Adamkiewicz with subarachnoid hemorrhage. Neurol Medchirurg. 2011;51:649-652.)) ((Son S, Lee S-G, Park C-W. Solitary ruptured aneurysm of the spinal artery of Adamkiewicz with subarachnoid hemorrhage. J Kor Neurosurg Soc. 2013;54:50.)) ((Doberstein CA, Bouley A, Silver B, Morrison JF, Jayaraman MV. Ruptured aneurysms of the intradural artery of adamkiewicz: angiographic features and treatment options. Clin Neurol Neurosurg. 2016;146:152-155.)) ((Agarwal A, Weerakkody Y, Marshall M, Singh T. Intercostal artery pseudoaneurysm with spontaneous resolution in the setting of an artery of Adamkiewicz. Case Rep. 2016;2016. bcr2016012802.)) ((Aguilar-Salinas P, Lima J, Brasiliense LB, Hanel RA, Sauvageau E. Ruptured aneurysm of the artery of Adamkiewicz: is conservative management the standard of treatment in the current era? J Neurointervent Surg. 2018;10:e22.)) ---- They typically present with [[subarachnoid hemorrhage]] ((Cobb M, Griffin A, Karikari I, Gonzalez LF. Endovascular Treatment of Ruptured Enlarging Dissecting Anterior Spinal Artery Aneurysm. World Neurosurg. 2020 Jul;139:e658-e662. doi: 10.1016/j.wneu.2020.04.100. Epub 2020 Apr 24. PMID: 32339730.)). ===== Risk factors ===== [[Polyarteritis nodosa]] ((Smith G, Hoh BL, Albayram MS. Anterior spinal artery aneurysm presenting with spinal subarachnoid hemorrhage in a case of polyarteritis nodosa. Clin Imaging. 2019 Jul-Aug;56:108-113. doi: 10.1016/j.clinimag.2019.04.008. Epub 2019 Apr 17. PMID: 31029009.)). ===== Treatment ===== Clinical and radiographic improvement over time without treatment ((Cobb M, Griffin A, Karikari I, Gonzalez LF. Endovascular Treatment of Ruptured Enlarging Dissecting Anterior Spinal Artery Aneurysm. World Neurosurg. 2020 Jul;139:e658-e662. doi: 10.1016/j.wneu.2020.04.100. Epub 2020 Apr 24. PMID: 32339730.)) [[Anterior spinal artery aneurysm treatment]], 43: Koch M, Sepp D, Prothmann S, Poppert H, Seifert CL. Systemic thrombolysis in anterior spinal artery syndrome: what has to be considered? J Thromb Thrombolysis. 2016 Apr;41(3):511-3. doi: 10.1007/s11239-015-1281-8. PMID: 26386968. ===== Case reports ===== [[Anterior spinal artery aneurysm case reports]].