The diagnostic investigation of CT-negative subarachnoid haemorrhage (SAH) is a particular challenge in clinical neurology. Cerebrospinal fluid (CSF) analysis via lumbar puncture is the method of choice. The diagnosis of SAH in CSF is based on a bloody or xanthochromic discoloration of the CSF as well as on findings in non-automated CSF cytology including the detection of erythrophages and siderophages. The automated determination of CSF ferritin concentrations or spectrophotometric detection of xanthochromia may contribute to the diagnosis but are only useful with regard to the overall clinical picture. Generally, the knowledge of the time flow of CSF changes associated with SAH is essential for a correct interpretation of CSF findings.
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http://dx.doi.org/10.1007/s00115-010-2997-5 | DOI Listing |
Eur J Neurol
September 2024
Department of Neurology, Akershus University Hospital, Lørenskog, Norway.
Background: Acute headache may be the primary symptom of subarachnoid hemorrhage (SAH). Recent guidelines suggest that non-contrast computed tomography (CT) is adequate to exclude aneurysmal SAH if performed within 6 h after symptom onset. However, most studies of acute headache including CT, lumbar puncture and SAH are multicenter studies from referral hospitals with highly selected patient populations.
View Article and Find Full Text PDFCerebrovasc Dis Extra
December 2023
Department of Neurosurgery, University Hospital Bonn, Bonn, Germany.
Introduction: Angiogram-negative subarachnoid hemorrhage (AN-SAH) accounts for 5-15% of spontaneous SAH. This study aims to analyze the frequency and characteristics of spinal bleeding sources in patients with AN-SAH.
Methods: 140 patients suffering from AN-SAH treated at our institution from 2012 to 2022 were included in this retrospective cohort study.
J Educ Teach Emerg Med
July 2023
Prisma Health Upstate, University of South Carolina School of Medicine Greenville, Department of Emergency Medicine, Greenville, SC.
Audience: This simulation is intended for MS4 or PGY-1 learners.
Introduction: Both headache and syncope are common chief complaints in the emergency department (ED); however, subarachnoid hemorrhage (SAH) is uncommon (accounting for 1-3% of all patients presenting to the ED with headache), with near 50% mortality.1-3 It is important to recognize the signs and symptoms that point to this specific diagnosis.
Acta Neurochir (Wien)
July 2023
Department of Medical Sciences, Section of Neurosurgery, Uppsala University, SE-751 85, Uppsala, Sweden.
Background: The primary aim was to determine the diagnostic yield of vascular work-up, the clinical course during neurointensive care (NIC), and rate of functional recovery for patients with computed tomography (CT)-negative, lumbar puncture (LP)-verified SAH.
Methods: In this retrospective study, 1280 patients with spontaneous SAH, treated at our NIC unit, Uppsala University Hospital, Sweden, between 2008 and 2018, were included. Demography, admission status, radiological examinations (CT angiography (CTA) and digital subtraction angiography (DSA)), treatments, and functional outcome (GOS-E) at 12 months were evaluated.
AJNR Am J Neuroradiol
May 2022
Radiology and Biomedical Imaging (M.T.C., S.W.H.).
Background And Purpose: Nearly 20% of patients with spontaneous SAH have no definitive source on initial DSA. The purpose of this study was to investigate the timing and yield of repeat DSA, to clarify the influence of initial CT bleed pattern, and to characterize sources of diagnostic error in this scenario.
Materials And Methods: We evaluated the yield of repeat DSA and clinical outcomes stratified by hemorrhage pattern on CT in consecutive patients with nontraumatic SAH with negative initial DSA findings at a referral center.
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