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Aim: To estimate the strengths of association between clinical features and migraine or arterial ischaemic stroke (AIS) in children presenting to the emergency department.Method: Eighty-four children with migraine, prospectively recruited from 2009 to 2010, were compared with 55 children with AIS, prospectively/retrospectively recruited from 2003 to 2010. Odds ratios were calculated via logistic regression to measure associations between clinical features and process-of-care factors, and migraine and AIS.Results: Median age was 13 years 5 months (interquartile range 12y 11mo-13y 10mo) for migraine and 5 years (interquartile range 3y 7mo-8y) for patients with AIS. All cases of AIS and 30% of migraine cases underwent neuroimaging. Over 40% of children with migraine had vomiting, numbness, or visual disturbance; other symptoms were uncommon. Fifty-five per cent had no signs on physician assessment. Weakness or speech disturbance were common in patients with AIS. Significant clinical features associated with increased odds of AIS included sudden symptom onset, weakness, seizures, speech disturbance, and ataxia, and signs of face, arm, or leg weakness, inability to walk, dysarthria, dysphasia, and altered consciousness (p<0.05). Significant features associated with decreased odds of AIS included older age, vomiting, visual, sensory, other symptoms, and absent focal signs on assessment (p<0.05).Interpretation: Presenting features can discriminate childhood AIS from migraine. These differences inform decisions about urgency and type of neuroimaging in children presenting to the emergency department with brain attack symptoms.What the Paper Adds: Weakness, seizures, ataxia, speech, or walking difficulties are more frequent in arterial ischaemic stroke (AIS). Vomiting, visual, or sensory disturbance and absent focal signs are more frequent in migraine. Identifying features of AIS and migraine guides neuroimaging in children with brain attack symptoms. [ABSTRACT FROM AUTHOR]

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Objectives In-hospital factors contribute more to delayed diagnosis of childhood arterial ischemic stroke ( AIS) than prehospital factors. We aimed to explore process and patient factors associated with type of and timing to neuroimaging in childhood AIS in the emergency department ( ED). Methods This was a retrospective hospital registry-based study of children with AIS, presenting to an Australian tertiary pediatric ED between January 2003 and December 2012. Neuroimaging data and timelines of care were also collected from referring hospitals for transferred patients. Results Seventy-one AIS episodes and 19 transient ischemic attacks were recorded. The majority (56%) were initially seen at a referring hospital. Patients underwent computed tomography ( CT) as first scan more frequently than magnetic resonance imaging ( MRI) as first scan (61% vs. 32%) at both the referring and the tertiary hospitals. Time to first scan as CT was significantly shorter compared with MRI (median = 1.5 hours vs. 10.9 hours, p < 0.001). MRI was performed more often at the tertiary hospital (92.5% vs. 26%, p = 0.001). Median time to performance of diagnostic MRI was 15.1 hours (interquartile range = 7.1-23.5), with no significant difference between patients first presenting to a referring hospital and those directly accessing the tertiary center. Patient characteristics including age, past medical history, conscious state, focal symptoms, and signs on arrival were not associated with the type of first neuroimaging or time to diagnostic MRI. Patients presenting during weekends were less likely to receive an MRI as first scan (odds ratio [ OR] = 0.3, 95% confidence interval [ CI] = 0.1-0.8), while time to MRI was significantly longer for children presenting after hours (5 pm-8 am; median = 17.6 hours vs. 8.4 hours, p = 0.026). MRI overall and as first scan was associated with a higher use of sedation than CT ( OR = 6.5, 95% CI = 1.3-32.9; and OR = 3.9, 95% CI = 1.3-11.8), particularly for children younger than 5 years of age ( OR = 12.5, 95% CI = 3-52.4). Conclusions Strategies to improve rapid diagnosis of pediatric stroke should include shared regional hospital networks protocols to optimize local imaging strategies and where possible rapid transfer to the tertiary center. Future priorities should include development of pediatric ED physician decision support tools to differentiate stroke from mimics and the development and implementation of rapid ED imaging stroke protocols to improve access to confirmatory MRI scanning. [ABSTRACT FROM AUTHOR]