Abstract
The ideal therapy and neurocritical care for patients with aneurysmal subarachnoid hemorrhage (SAH) follows from an early and accurate diagnosis. However, approximately 30% of patients with SAH are misdiagnosed at their initial visit to a physician. This article explores the reasons for this alarming error rate: failure to understand the full spectrum of presentation of SAH and failure to know the limitations of the major diagnostic tests (computed tomography of the brain and lumbar puncture [LP]). I suggest a strategy for selecting which patients with headache require evaluation beyond history and physical examination and how that evaluation should proceed. Other diagnostic issues are also discussed, such as use of magnetic resonance scanning and angiography for diagnosis, distinguishing the traumatic LP from true SAH, the concept of warning bleeds, and the LP-first diagnostic strategy.
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References
Edlow JA, Caplan LR. Avoiding pitfalls in the diagnosis of subarachnoid hemorrhage [see comments]. N Engl J Med 2000;342(1):29–36.
Evans R. Diagnostic testing for the evaluation of headaches. Neurol Clin 1996;14(1):1–26.
Ramirez-Lassepas M, Espinosa CE, Cicero JJ, Johnston KL, Cipolle RJ, Barber DL. Predictors of intracranial pathologic findings in patients who seek emergency care because of headache. Arch Neurol 1997;54(12):1506–1509.
Frishberg BM. The utility of neuroimaging in the evaluation of headache in patients with normal neurologic examinations [see comments]. Neurology 1994;44(7):1191–1197.
Schievink WI. Intracranial aneurysms [see comments] [published erratum appears in N Engl J Med 1997;24;336(17):1267]. N Engl J Med 1997;336(1):28–40.
Mattioli C, Beretta L, Gerevini S, et al. Traumatic subarachnoid hemorrhage on the computerized tomography scan obtained at admission: a multicenter assessment of the accuracy of diagnosis and the potential impact on patient outcome. J Neurosurg 2003;98(1):37–42.
Mayberg MR, Batjer HH, Dacey R, et al. Guidelines for the management of aneurysmal subarachnoid hemorrhage. Stroke 1994;25(11):2315–2328.
Linn FH, Rinkel GJ, Algra A, van Gijn J. Incidence of subarachnoid hemorrhage: role of region, year, and rate of computed tomography: a meta-analysis. Stroke 1996;27(4):625–629.
Sivenius J, Tuomilehto J, Immonen-Raiha P, et al. Continuous 15-year decrease in incidence and mortality of stroke in Finland. The FINSTROKE Study. Stroke 2004;420–425.
Leicht M. Non-traumatic headache in the emergency department. Ann Emerg Med 1980;9(8):404–409.
Dhopesh V, Anwar R, Herring C. A retrospective assessment of emergency department patients with complaints of headache. Headache 1979;19:37–42.
Morgenstern LB, Luna-Gonzales H, Huber JC, Jr., et al. Worst headache and subarachnoid hemorrhage: prospective, modern computed tomography and spinal fluid analysis. Ann Emerg Med 1998;32(3 pt 1):297–304.
Linn FH, Wijdicks EF, van der Graaf Y, Weerdesteyn-van Vliet FA, Bartelds AI, van Gijn J. Prospective study of sentinel headache in aneurysmal subarachnoid haemorrhage. Lancet 1994;344(8922):590–593.
Landtblom AM, Fridriksson S, Boivie J, Hillman J, Johansson G, Johansson I. Sudden onset headache: a prospective study of features, incidence and causes. Cephalalgia 2002;22(5):354–360.
Adams HP, Jr., Jergenson DD, Kassell NF, Sahs AL. Pitfalls in the recognition of subarachnoid hemorrhage. Jama 1980;244(8):794–796.
Kassell N, Kongable G, Torner J, Adams H, Mazuz H. Delay in referral of patients with ruptured aneurysms to neurosurgical attention. Stroke 1985;16(4):587–590.
Kassell NF, Torner JC, Haley EC, Jr., Jane JA, Adams HP, Kongable GL. The International Cooperative Study on the Timing of Aneurysm Surgery. Part 1: Overall management results. J Neurosurg 1990;73(1):18–36.
Mayer PL, Awad IA, Todor R, et al. Misdiagnosis of symptomatic cerebral aneurysm: prevalence and correlation with outcome at four institutions. Stroke 1996;27(9):1558–1563.
Neil-Dwyer G, Lang D. ‘Brain attack’—aneurysmal subarachnoid haemorrhage: death due to delayed diagnosis. J R Coll Physicians (London) 1997;31(1):49–52.
Edlow JA. Diagnosis of subarachnoid hemorrhage in the emergency department. Emerg Med Clin North Am 2003;21(1):73–87.
Stewart WF, Lipton RB, Celentano DD, Reed ML. Prevalence of migraine headache in the United States. Relation to age, income, race, and other sociodemographic factors. JAMA 1992;267(1):64–69.
Karcz A, Holbrook J, Burke M, et al. Massachusetts emergency medicine closed malpractice claims: 1988–1990. Ann Emerg Med 1993;22(3):553–559.
Hunt WE, Hess RM. Surgical risk as related to time of intervention in the repair of intracranial aneurysms. J Neurosurg 1968;28:14–20.
Rosenorn J, Eskesen V, Schmidt K, et al. Clinical features and outcome in 1076 patients wtih ruptured intracranial saccular aneurysms: a prospective consecutive study. Br J Neurosurg 1987;1:33–46.
Weir B. Headaches from aneurysms. Cephalgia 1993;14:79–87.
Liedo A, Calandre L, Martinez-Menendez B, Perez-Sempere A, Portera-Sanchez A. Acute headache of recent onset and subarachnoid hemorrhage: a prospective study. Headache 1994;34(4):172–174.
Seymour JJ, Moscati RM, Jehle D. Response of headache to non-narcotic analgesics resulting in missed intracranial hemorrhage. A J Emerg Med 1995;13(1):43–65.
Limmroth V, Cutrer FM, Moskowitz MA. Neurotransmitters and neuropeptides in headache. Curr Opin Neurol 1996;9(3):206–210.
Moskowitz MA, Henrikson BM, Markowitz S. Experimental studies on the sensory innervation of the cerebral blood vessels. Cephalalgia 1986;6(Suppl 4):63–66.
Schievink WI, Karemaker JM, Hageman LM, van der Werf DJM. Circumstances surrounding anerysmal subarachnoid hemorrhage. Surg Neurol 1989;32:266–272.
Linn F, Rinkel G, Algra A, van Gijn J. Headache characteristics in subarachnoid hemorrhage and benign thunderclap headache. J Neurol Neurosurg Psychiatry 1998;65:791–793.
Sarner M, Rose F. Clinical presentation of ruptured intracranial aneurysm. J Neurol Neurosurg Pschiat 1967;30:67–70.
Walton J. Subarachnoid Hemorrhage. Edinburgh: E & S Livingstone, 1956.
Raps EC, Rogers JD, Galetta SL, et al. The clinical spectrum of unruptured intracranial aneurysm. Arch Neurol 1993;50:265–268.
Anonymous. Classification and diagnostic criteria for headache disorders, cranial neuralgias and facial pain. Cephalgia 1988;8(Suppl 7):1–73.
Schattner A. Pain in the neck [letter]. Lancet 1996;348(9024):411,412.
Reijneveld JC, Wermer M, Boonman Z, van Gijn J, Rinkel GJ. Acute confusional state as presenting feature in aneurysmal subarachnoid hemorrhage: frequency and characteristics. J Neurol 2000;247(2):112–116.
Abbot RJ, van Hille P. Thunderclap headache and unruptured aneurysm. Lancet 1986;ii:1459.
Findlay JM. Current management of aneurysmal subarachnoid hemorrhage guidelines from the Canadian Neurosurgical Society. Can J Neurol Sci 1997;24(2):161–170.
Edlow JA, Wyer PC. How good is a negative cranial computed tomographic scan result in excluding subarachnoid hemorrhage? Ann Emerg Med 2000;36(5):507–516.
Edlow, Wyer. Feedback: computed tomography for subarachnoid hemorrhage. Which review should we believe regarding the diagnostic power of computed tomography for ruling out subarachnoid hemorrhage? Ann Emerg Med 2001;37(6):679,680; discussion 80–85.
Hoffman JR. Computed tomography for subarachnoid hemorrhage: what should we make of the “evidence”? Ann Emerg Med 2001;37(3):345–349.
Vos PE, Zwienenberg M, O’Hannian KL, Muizelaar JP. Subarachnoid haemorrhage following rupture of an ophthalmic artery aneurysm presenting as traumatic brain injury. Clin Neurol Neurosurg 2000;102(1):29–32.
Sakas DE, Dias LS, Beale D. Subarachnoid haemorrhage presenting as head injury. BMJ 1995;310(6988):1186,1187.
Sharp S, Stone J, Beach R. Contrast agent neurotoxicity presenting as subarachnoid hemorrhage [see comments]. Neurology 1999;52(7):1503–1505.
Velden J, Milz P, Winkler F, Seelos K, Hamann GF. Nonionic contrast neurotoxicity after coronary angiography mimicking subarachnoid hemorrhage. Eur Neurol 2003;49(4):249–251.
Chatterjee T, Gowardman JR, Goh TD. Pneumococcal meningitis masquerading as subarachnoid haemorrhage. Med J Aust 2003;178(10):505–507.
Mendelsohn DB, Moss ML, Chason DP, Muphree S, Casey S. Acute purulent leptomeningitis mimicking subarachnoid hemorrhage on CT. J Comput Assist Tomogr 1994; 18(1):126–128.
Huang D, Abe T, Ochiai S, et al. False positive appearance of subarachnoid hemorrhage on CT with bilateral subdural hematomas. Radiat Med 1999;17(6):439–442.
Voris H. Subarachnoid hemorrhage. Illinois Med J 1949;95:160–167.
Wolfe H. Spontaneous subarachnoid hemorrhage. Br J Surg 1955;50:319–325.
Richardson J, Hyland H. Intracranial aneurysms. Medicine (Baltimore) 1941;20:1–83.
Weir B. Diagnostic aspects of subarachnoid hemorrhage. In: Weir B, ed. Subarachnoid Hemorrhage: Causes and Cures. New York: Oxford University Press, 1998, pp. 144–176.
Roost KT, Pimstone NR, Diamond I, Schmid R. The formation of cerebrospinal fluid xanthochromia after subarachnoid hemorrhage. Neurology 1972;22:973–977.
Fishman R. Chapter 8: Composition of the Cerebrospinal Fluid. Second ed. Philadelphia: WB Saunders, 1992.
Beetham R, Fahie-Wilson MN, Park D. What is the role of CSF spectrophotometry in the diagnosis of subarachnoid haemorrhage? Ann Clin Biochem 1998;35 (pt 1):1–4.
Vermeulen M. Subarachnoid haemorrhage: diagnosis and treatment. J Neurol 1996;243:496–501.
van Gijn J. Slip-ups in diagnosis of subarachnoid haemorrhage. Lancet 1997;349(9064):1492.
Vermeulen M, Hasan D, Blijenberg BG, Hijdra A, van Gijn J. Xanthochromia after subarachnoid haemorrhage needs no revisitation. J Neurol Neurosurg Psychiatry 1989;52(7):826–828.
Edlow JA, Bruner KS, Horwitz GL. Xanthochromia. Arch Pathol Lab Med 2002;126(4):413–415.
Mendelow AD, Cartlidge N. Xanthochromia in subarachroid haemorrhage. J Neurol Neurosurg Psychiatry 1990;53(3):270,271.
Gerber CJ, Crawford P, Mendelow AD, Gholkar A, Sengupta RP. Lumbar puncture should not be delayed in subarachnoid haemorrhage [letter; comment]. BMJ 1998;317(7151):148.
Eskey CJ, Ogilvy CS. Fluoroscopy-guided lumbar puncture: decreased frequency of traumatic tap and implications for the assessment of CT-negative acute subarachnoid hemorrhage. AJNR Am J Neuroradiol 2001;22(3):571–576.
Shah KH, Richard KM, Nicholas S, Edlow JA. Incidence of traumatic lumbar puncture. Acad Emerg Med 2003;10(2):151–154.
Shah KH, Edlow JA. Distinguishing traumatic lumbar puncture from true subarachnoid hemorrhage. J Emerg Med 2002;23(1):67–74.
Tourtellotte W, Somers J, Parker J, Itabashi H, De Jong R. A study of traumatic lumbar punctures. Neurology 1958; 8: 129–134.
Buruma OJS, Janson HLF, den Bergh FAJTM, Bots GTH. Blood-stained cerebrospinal fluid: traumatic puncture or haemorrhage. J Neurol Neurosurg Psychiatry 1981;44:144–147.
Beetham R, Fahie-Wilson MN, Holbrook I, et al. CSF spectrophotometry in the diagnosis of subarachnoid haemorrhage. J Clin Pathol 2002;55(6):479,480; author reply 80.
Soderstrom CE. Diagnostic significance of CSF spectrophotometry and computerized tomography in cerebrovascular disease: a comparative study in 231 cases. Stroke 1977;8(5):606–612.
Wenham PR, Hanson T, Ashby JP. Interference in spectrophotometric analysis of cerebrospinal fluid by haemolysis induced by transport through a pneumatic tube system. Ann Clin Biochem 2001;38(Pt 4):371–375.
Mitchell P, Wilkinson ID, Hoggard N, et al. Detection of subarachnoid haemorrhage with magnetic resonance imaging. J Neurol Neurosurg Psychiatry 2001;70(2):205–211.
Noguchi K, Ogawa T, Inugami A, et al. Acute subarachnoid hemorrhage: MR imaging with fluid-attenuated inversion recovery pulse sequences. Radiology 1995;196(3):773–777.
Rumboldt Z, Kalousek M, Castillo M. Hyperacute subarachnoid hemorrhage on T2-weighted MR images. AJNR 2003;24(3):472–475.
Woodcock RJ, Jr., Short J, Do HM, Jensen ME, Kallmes DF. Imaging of acute subarachnoid hemorrhage with a fluid-attenuated inversion recovery sequence in an animal model: comparison with non-contrast-enhanced CT. AJNR 2001;22(9):1698–1703.
Wiesmann M, Mayer TE, Yousry I, Medele R, Hamann GF, Bruckmann H. Detection of hyperacute subarachnoid hemorrhage of the brain by using magnetic resonance imaging. J Neurosurg 2002;96(4):684–689.
Dechambre SD, Duprez T, Grandin CB, Lecouvet FE, Peeters A, Cosnard G. High signal in cerebrospinal fluid mimicking subarachnoid haemorrhage on FLAIR following acute stroke and intravenous contrast medium. Neuroradiology 2000;42(8):608–611.
Schull M. Lumbar puncture first: an alternative model for the investigation of lone acute sudden headache. Acad Emerg Med 1999;6(2):131–136.
Patel MK, Clarke MA. Lumbar puncture and subarachnoid haemorrhage. Postgrad Med J 1986;62(733):1021–1024.
French JK, Glasgow GL. Lumbar puncture in subarachnoid haemorrhage: yes or no? N Z Med J 1985;98(779):383,384.
Duffy GP. Lumbar puncture in spontaneous subarachnoid hemorrhage. BMJ 1982;285:1163–1166.
Hillman J. Should computered tomography scanning replace lumbar puncture in the diagnostic process in suspected subarachnoid hemorrhage? Surg Neurol 1986;26:547–550.
Bassi P, Bandera R, Loiero M, Tognoni G, Mangoni A. Warning signs in subarachnoid hemorrhage: a cooperative study. Acta Neurol Scand 1991;84(4):277–281.
Duffy GP. The warning leak in spontaneous subarachnoid haemorrhage. Med J Aust 1983;1:514–516.
Edner G, Ronne-Engstrom E. Can early admission reduce aneurysmal rebleeds? A prospective study on aneurysmal incidence, aneurysmal rebleeds, admission and treatment delays in a defined region. Br J Neurosurg 1991;5(6):601–608.
Hauerberg J, Andersen BB, Eskesen V, Rosenorn J, Schmidt K. Importance of the recognition of a warning leak as a sign of a ruptured intracranial aneurysm. Acta Neurologica Scandinavica 1991;83(1):61–64.
Jakobsson KE, Saveland H, Hillman J, et al. Warning leak and management outcome in aneurysmal subarachnoid hemorrhage. J Neurosurg 1996;85(6):995–999.
Mayberg MR. Warning leaks and subarachnoid hemorrhage. West J Med 1990;153(5):549,550.
Okawara SH. Warning signs prior to rupture of an intracranial aneurysm. J Neurosurg 1973;38:575–580.
Ostergaard JR. Headache as a warning symptom of impending aneurysmal subarachnoid haemorrhage. Cephalalgia 1991;11(1):53–55.
Verweij RD, Wijdicks EF, van Gijn J. Warning headache in aneurysmal subarachnoid hemorrhage. A case-control study. Arch Neurol 1988;45(9):1019,1120.
Gillingham FJ. The management of ruptured intracranial aneurysm. Ann R Coll Surg, (English) 1958;23:89–117.
Linn FH, Rinkel GJ, Algra A, van Gijn J. The notion of “warning leaks” in subarachnoid haemorrhage: are such patients in fact admitted with a rebleed? J Neurol Neurosurg Psychiatry 2000;68(3):332–336.
Leblanc R. The minor leak preceding subarachnoid hemorrhage. J Neurosurg 1987;66(1):35–39.
Harling DW, Peatfield RC, van Hille PT, Abbot RJ. Thunderclap headache: is it migraine? Cephalgia 1989;9:87–90.
Markus HS. A prospective follow-up of thunderclap headache mimicking subarachnoid hemorrhage. J Neurol Neurosurg Psychiatry 1991;54:1117–1125.
Wijdicks EFM, Kerkhoff H, vanGijn J. Long-term follow-up of 71 patients with thunderclap headache mimicking subarachnoid hemorrhage. Lancet 1988;ii:68,69.
Ball MJ. Pathogenesis of the “sentinel” headache preceding berry aneurysm rupture. Canadian Med Assoc J 1975;112(1):78,79.
Fridriksson S, Hillman J, Landtblom AM, Boive J. Education of referring doctors about sudden onset headache in subarachnoid hemorrhage. A prospective study. Acta Neurol Scand 2001;103(4):238–242.
Imaizumi T, Chiba M, Honma T, Niwa J. Detection of hemosiderin deposition by T2*-weighted MRI after subarachnoid hemorrhage. Stroke 2003;34(7):1693–1698.
Johnson MR, Good CD, Penny WD, Barnes PR, Scadding JW. Lesson of the week: playing the odds in clinical decision making: lessons from berry aneurysms undetected by magnetic resonance angiography. Bmj 2001;322(7298):1347–1349.
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Edlow, J.A. Diagnosis of subarachnoid hemorrhage. Neurocrit Care 2, 99–109 (2005). https://doi.org/10.1385/NCC:2:2:099
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DOI: https://doi.org/10.1385/NCC:2:2:099