References
- de Rooij NK, Linn FHH, van der Plas JA, Algra A, Rinkel GJE. Incidence of subarachnoid haemorrhage: a systematic review with emphasis on region, age, gender and time trends. JNNP 2007;78(12):1365-437. https://doi.org/10.1136/jnnp.2007.117655
- Park SJ, Gwak SR, Joo JC, Kwon YM. Case series of headache patients diagnosed with subarachnoid hemorrhage by computed tomography in a Korean medicine hospital. The J of Internal Korean Medicine(JIKM) 2018;39(4):764-71. https://doi.org/10.22246/jikm.2018.39.4.764
- Vlak MHM, Rinkel GJE, Greebe P, van der Bom JG, Algra A. Trigger factors and their attributable risk for rupture of intracranial aneurysms: a case-crossover study. stroke 2011;42(7):1878-82. https://doi.org/10.1161/STROKEAHA.110.606558
- Son SN, Choi DS, Kim YS, Kim SK, Kang HY, Park KJ et al. Acute non-traumatic cortical subarachnoid hemorrhage. Journal of the Korean Neurological Association 2011;29(3):252-6.
- Mun JY, Choi JW. Analysis of the patient who were rejected by 119 emergency requests transferred. Korean J Emerg Med Ser 2021;25(3):63-70. https://doi.org/10.14408/KJEMS.2021.25.3.063
- Kang KH. Unmet need and inappropriate use in emergency ambulance service. Health Policy and Management 2014;24(4):357-66. https://doi.org/10.4332/KJHPA.2014.24.4.357
- Ahn BK, Lee GC. Factors affecting the number of emergency department use. Korean Public Health Research 2019;45(4):23-33. https://doi.org/10.22900/KPHR.2019.45.4.003
- Lee JC, Ahn BK. Factors associated with multiple emergency department visits: focused on general hospital level regional emergency medical center. Korean Public Health Research 2018;44:3129-46.
- Sung DW. A study on methods for decrease of non emergency cases in 119 EMS system. Unpublished master's thesis, Yonsei University 2010, Wonju, Korea.
- Perry JJ, Stiell IG, Sivilotti MLA, Bullard MJ, Hohl CM, Sutherland J et al. Clinical decision rules to rule out subarachnoid hemorrhage for acute headache. JAMA 2013;310(12):1248-55. https://doi.org/10.1001/jama.2013.278018
- Kimura A, Kobayashi K, Yamaguchi H, Takahashi T, Harada M, Honda H et al. New clinical decision rule to exclude subarachnoid hemorrhage for acute headache: a prospective multicentre observational study. BMJ Open. 2016;6:e010999. https://doi.org/10.1136/bmjopen-2015-010999
- Kim KH, Park SO, Kim JW, Lee KR, Hong DY. Baek KJ et al. Efficacy of neutrophil-lymphocyte ratio and clinical predicting indexes on differentiating subarachnoid hemorrhage from acute headache patients at emergency department. J Korean Soc Emerg Med 2018;29(4):371-9.
- Lee EH, Yoon SY, Choi JY. Factors associated with ruptured intracranial aneurysm in a hospital. Journal of the Korea Convergence Society 2019;10(1):339-51. https://doi.org/10.15207/JKCS.2019.10.1.339
- Marcolini E, Hine J. Approach to the diagnosis and management of subarachnoid hemorrhage. West J Emerg Med. 2019;20(2):203-11. https://doi.org/10.5811/westjem.2019.1.37352
- Jeong SM, Kim YJ, Kim KS, Shin SD, Kim JH, Jeong JH et al. Clinical predictors of subarachnoid hemorrhage in patients with acute non-traumatic headache in emergency department. J Korean Soc Emerg Med 2014;25(6):703-14.
- Foley RW, Ramachandran S, Akintimehin A, Williams S, Connor SJ, Hart J et al. Subarachnoid haemorrhage rules in the decision for acute CT of the head: external validation in a UK cohort. Clinical Medicine 2021;21(2):96-100. https://doi.org/10.7861/clinmed.2020-0437
- Pathan AS, Chakarova E, Tarique A. To head CT scan or not: the clinical quandary in suspected subarachnoid hemorrhage; a validation study on Ottawa subarachnoid hemorrhage rule. Am J Emerg Med 2018;2(3):1-8. https://doi.org/10.22114/AJEM.v0i0.73
- Cheung HY, Lui CT, Tsui KL. Validation and modification of the ottawa subarachnoid haemorrhage rule in risk stratification of asian chinese patients with acute headache. Hong Kong Med J 2018;24(6):584-92. https://doi.org/10.12809/hkmj187533
- Jung JH. Sex difference and risk factors in incidence and mortality of stroke. Unpublished doctoral dissertation, Korea University 2019, Seoul, Korea.
- Perry JJ, Sivilotti ML, Emond M, Hohl CM, Khan M, Lesiuk H et al. Prospective implementation of the Ottawa subarachnoid hemorrhage rule and 6-hour computed tomography rule. Stroke 2020;51(2):424-30. https://doi.org/10.1161/STROKEAHA.119.026969
- Suzuki T, Itokazu D, Tokuda Y. External validation for sensitivity of the ottawa subarachnoid hemorrhage rule in a Japanese tertiary teaching hospital. Sci Rep 2021;11(1):1671-7. https://doi.org/10.1038/s41598-021-96320-9
- Hov MR, Ryen A, Finsnes K, Storflor J, Lindner T, Gleditsch J et al. Pre-hospital CT diagnosis of subarachnoid hemorrhage. Scand J Trauma Resusc Emerg Med 2017;28;25(1):21. https://doi.org/10.1186/s13049-017-0365-1