1. Barker FG 2nd, Amin-Hanjani S, Butler WE, Hoh BL, Rabinov JD, Pryor JC, et al. Age-dependent differences in short-term outcome after surgical or endovascular treatment of unruptured intracranial aneurysms in the United States, 1996-2000. Neurosurg 2004;54:18–30.
2. Chernyshev OY, Bir SC, Maiti TK, Patra DP, Liendo C, Cuellar H, et al. Changing paradigm in the management of elderly patients with intracranial aneurysms: An institutional review. J Clin Neurosci 2017;43:94–102.
3. Connolly ES Jr, Rabinstein AA, Carhuapoma JR, Derdeyn CP, Dion J, Higashida RT, et al. Guidelines for the management of aneurysmal subarachnoid hemorrhage: a guideline for healthcare professionals from the American Heart Association/american Stroke Association. Stroke 2012;43:1711–1737.
4. Seo DH, Kang HS, Kim DW, Park SQ, Song Y, Sheen SH, et al. Guidelines for the Management of Unruptured Intracranial Aneurysm. Kor J Cerebrovascul Surg 2011;13:279–290.
5. Feigin VL, Rinkel GJ, Lawes CM, Algra A, Bennett DA, van Gijn J, et al. Risk factors for subarachnoid hemorrhage: an updated systematic review of epidemiological studies. Stroke 2005;36:2773–2780.
6. Horiuchi T, Tsutsumi K, Ito K, Hongo K. Results of clipping surgery for aneurysmal subarachnoid hemorrhage in the ninth and tenth decades of life. J Clin Neurosci 2014;21:1567–1569.
7. Inagawa T. Risk factors for the formation and rupture of intracranial saccular aneurysms in Shimane, Japan. World Neurosurg 2010;73:155–164.
8. Inagawa T, Hirano A. Ruptured intracranial aneurysms: an autopsy study of 133 patients. Surg Neurol 1990;33:117–123.
9. International Study of Unruptured Intracranial Aneurysms Investigators. Unruptured intracranial aneurysms--risk of rupture and risks of surgical intervention. N Engl J Med 1998;339:1725–1733.
10. Investigators UJ, Morita A, Kirino T, Hashi K, Aoki N, Fukuhara S, et al. The natural course of unruptured cerebral aneurysms in a Japanese cohort. N Engl J Med 2012;366:2474–2482.
12. Juvela S, Poussa K, Lehto H, Porras M. Natural history of unruptured intracranial aneurysms: a long-term follow-up study. Stroke 2013;44:2414–2421.
13. Lanzino G, Kassell NF, Germanson TP, Kongable GL, Truskowski LL, Torner JC, et al. Age and outcome after aneurysmal subarachnoid hemorrhage: why do older patients fare worse? J Neurosurg 1996;85:410–418.
14. Matsukawa H, Kamiyama H, Tsuboi T, Noda K, Ota N, Miyata S, et al. Is Age a Risk Factor for Poor Outcome of Surgical Treatment of Unruptured Intracranial Aneurysms? World Neurosurg 2016;94:222–228.
15. Qureshi AI, Suri MF, Nasar A, Kirmani JF, Divani AA, He W, et al. Trends in hospitalization and mortality for subarachnoid hemorrhage and unruptured aneurysms in the United States. Neurosurgery 2005;57:1–8.
16. Rudolph TK, Rudolph V, Baldus S. Contribution of myeloperoxidase to smoking-dependent vascular inflammation. Proc Am Thorac Soc 2008;5:820–823.
17. Sedat J, Dib M, Lonjon M, Litrico S, Von Langsdorf D, Fontaine D, et al. Endovascular treatment of ruptured intracranial aneurysms in patients aged 65 years and older: follow-up of 52 patients after 1 year. Stroke 2002;33:2620–2625.
18. Taylor CL, Yuan Z, Selman WR, Ratcheson RA, Rimm AA. Cerebral arterial aneurysm formation and rupture in 20,767 elderly patients: hypertension and other risk factors. J Neurosurg 1995;83:812–819.
19. Thompson BG, Brown RD, Amin-Hanjani S, Broderick JP, Cockroft KM, Connolly ES, et al. Guidelines for the Management of Patients With Unruptured Intracranial Aneurysms: A Guideline for Healthcare Professionals From the American Heart Association/American Stroke Association. Stroke 2015;46:2368–2400.
20. Vlak MH, Rinkel GJ, Greebe P, Algra A. Risk of rupture of an intracranial aneurysm based on patient characteristics: a case-control study. Stroke 2013;44:1256–1259.
21. Vlak MHM, Algra A, Brandenburg R, Rinkel GJE. Prevalence of unruptured intracranial aneurysms, with emphasis on sex, age, comorbidity, country, and time period: a systematic review and meta-analysis. Lancet Neurology 2011;10:626–636.
22. Wermer MJ, van der Schaaf IC, Algra A, Rinkel GJ. Risk of rupture of unruptured intracranial aneurysms in relation to patient and aneurysm characteristics: an updated meta-analysis. Stroke 2007;38:1404–1410.
23. Wiebers DO, Whisnant JP, Huston J 3rd, Meissner I, Brown RD Jr, Piepgras DG, et al. Unruptured intracranial aneurysms: natural history, clinical outcome, and risks of surgical and endovascular treatment. Lancet 2003;362:103–110.
24. Yue Q, Liu Y, Leng B, Xu B, Gu Y, Chen L, et al. A Prognostic Model for Early Post-Treatment Outcome of Elderly Patients With Aneurysmal Subarachnoid Hemorrhage. World Neurosurg 2016;95:253–261.