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Published on: April 21, 2017
Basilar artery stroke in childhood
Barbara Goeggel Simonetti1, Barbara Ritter, Matthias Gautschi
1Division of Paediatric Neurology, Department of Paediatrics, Inselspital, University of Bern, Bern, Switzerland. barbara.goeggel-simonetti@insel.ch
Insights
Basilar artery stroke (BAS) in children is rare, with an incidence of 0.037 per 100,000 children annually. Despite diagnostic delays, outcomes are more favorable than in adults, especially with a lower PedNIHSS score.
Area of Science:
- Pediatric Neurology
- Vascular Neurology
- Epidemiology
Background:
- Basilar artery stroke (BAS) is poorly understood in pediatric populations.
- This study aims to elucidate the characteristics and outcomes of childhood BAS.
Purpose of the Study:
- To determine the incidence of BAS in children.
- To analyze clinical presentation, risk factors, radiological findings, and treatment approaches.
- To evaluate outcomes and identify prognostic factors for childhood BAS.
Main Methods:
- A prospective, population-based study of pediatric arterial ischemic stroke cases.
- Systematic literature review to identify additional childhood BAS cases.
- Analysis of incidence, clinical features, etiology, treatment, and outcomes.
Main Results:
- The incidence of BAS in children was found to be 0.037 per 100,000 children per year.
- Common symptoms included impaired consciousness, hemiparesis/quadriparesis, and bulbar dysfunction.
- A significant proportion of cases had vasculopathic etiology or unknown causes, with a median Pediatric National Institutes of Health Stroke Scale (PedNIHSS) score of 15.
- Good outcomes (modified Rankin Scale 0-2) were observed in 45 patients, while eight died. A PedNIHSS score of 17 or less was a prognostic factor for favorable outcomes.
Conclusions:
- Childhood BAS is a rare condition with a more favorable prognosis compared to adults.
- Delays in diagnosis and treatment are common but do not preclude better outcomes.
- Lower PedNIHSS scores (≤17) are associated with improved outcomes in pediatric BAS.
Aim:
Little is known about basilar artery stroke (BAS) in children. The objective of this study was to calculate the incidence of BAS in children and to analyse the clinical presentation, risk factors, radiological findings, therapeutic approaches, and outcome of BAS in childhood.
Method:
A prospective, population-based study including children with arterial ischaemic stroke and a systematic review of the literature was undertaken.
Results:
Seven children with BAS were registered at the Swiss Neuropaediatric Stroke Registry between January 2000 and June 2011 (incidence 0.037 per 100,000 children per year, 95% confidence interval [CI] 0.013-0.080). A further 90 cases were identified through the literature search. The majority of patients were male (73 males, 24 females) and the median age was 9 years (interquartile range [IQR]=6-13y). The median Pediatric National Institutes of Health Stroke Scale (PedNIHSS) score was 15 (IQR=4-27). Presenting signs and symptoms comprised impaired consciousness (n=64), quadri- or hemiparesis (n=58), bulbar dysfunction (n=46), vomiting, nausea (n=43), and headache (n=41). Prodromes occurred in 43% of cases. Aetiology was largely vasculopathic (n=38), but often unknown (n=40). Time to diagnosis varied from hours days; six patients received antithrombotic, thrombolytic, or mechanical endovascular treatment 12 hours or less after symptom onset. Outcome was good (modified Rankin Scale 0-2) in 45 patients; eight died. PedNIHSS score of up to 17 was a prognostic factor for good outcome.
Interpretation:
BAS is rare in children. Compared with adults, outcome is more favourable despite a considerable delay in diagnosis and treatment. Outcome was better in children with a PedNIHSS score of 17 or less.
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