ArticleStroke2026
Diagnostic Delays in Pediatric Acute Ischemic Stroke: 24-Year Trends and Contributing Factors in Switzerland.
Article in Stroke, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundGrowing evidence for reperfusion therapies in pediatric acute ischemic stroke (AIS) increases the importance of timely diagnosis within treatment windows. We therefore aimed to describe 24-year trends and associated factors of diagnostic delay.
methodsWe conducted a nationwide retrospective cross-sectional study including 314 children aged 28 days to 16 years from the Swiss Neuropediatric Stroke Registry (2000-2023). The primary outcome was time from stroke onset to diagnosis (TOD). Trends for diagnoses beyond intravenous thrombolysis (≥4.5 hours) and thrombectomy (≥24 hours) windows were assessed with multivariable logistic regression, and for continuous TOD with robust linear regression. Prespecified covariates were retained in multivariable models if associated with the outcome in univariable analyses. Analyses were stratified by AIS onset location (out-of-hospital and in-hospital).
resultsMedian TOD was 26.9 hours (interquartile range, 10.1-91.5) between 2000 and 2023. During this period, the proportion diagnosed beyond the thrombolysis window decreased significantly in the overall cohort from 90.9% to 77.5% (adjusted odds ratio per calendar year 0.94 [95% CI, 0.88-1.00]) and in out-of-hospital AIS from 88.1% to 74.1% (adjusted odds ratio, 0.91 [0.84-1.00]). No significant change was observed beyond the thrombectomy window diagnoses. Continuous TOD decreased significantly only in in-hospital AIS (β=-4.3 [-7.2 to -1.5]). Older age (β=-1.8 [-2.9 to -0.8]), higher pediatric National Institutes of Health Stroke Scale (β=-1.2 [-2.1 to -0.4]), and facial palsy (β=-19.4 [-30.2 to -8.5]) were associated with shorter TOD, and nonspecific symptoms (β=110.0 [72.5-147.5]) with longer TOD. Out-of-hospital TOD was shorter when patients presented to a stroke center compared with other presentation sites. Posterior-stroke symptoms were associated with diagnoses beyond the thrombolysis window.
conclusionsDespite decreasing proportions of beyond-thrombolysis window diagnoses in out-of-hospital AIS and decreasing TOD in in-hospital AIS, most diagnoses occur beyond reperfusion windows. Goals to decrease delay include raising awareness of posterior-stroke signs and AIS in younger children, and strengthening direct-to-stroke center pathways.
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