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Updated: May 6, 2026

A Thrombotic Stroke Model Based On Transient Cerebral Hypoxia-ischemia
Published on: August 18, 2015
Thrombolysis for children with acute ischemic stroke: a perspective from the kids' inpatient database
Amer Alshekhlee1, Thomas Geller, Sonal Mehta
1Department of Neurology, Souers Stroke Institute, St. Louis University, St. Louis, Missouri; SSM Neuroscience Institutes, DePaul Health Center, St. Louis University, St. Louis, Missouri; Department of Neurology, St. George's University, Great River, New York.
Insights
Thrombolysis for pediatric acute ischemic stroke (AIS) is rarely used, with a slight increase in utilization. While risks of intracerebral hemorrhage and mortality are low, similar to adults, further research is needed for efficacy.
Area of Science:
- Pediatric Neurology
- Cardiovascular Research
- Public Health
Background:
- Thrombolysis for acute ischemic stroke (AIS) in children lacks proven efficacy and extensive safety data.
- Limited information exists on the safety of thrombolysis in large pediatric populations.
Purpose of the Study:
- To evaluate the safety outcomes of thrombolysis in children with AIS.
- To analyze trends in hospital utilization of thrombolysis for pediatric AIS over a decade in the US.
Main Methods:
- Utilized the Kids' Inpatient Database (1998-2009) to identify a cohort of children with AIS.
- Employed multivariate logistic regression to assess factors associated with hospital mortality and intracerebral hemorrhage.
- Applied the Cochran-Armitage test to determine linear trends in discrete variables.
Main Results:
- A small fraction (0.7%) of 9257 AIS children received thrombolysis; treated children were older with longer hospital stays.
- Unadjusted analysis indicated higher hospital mortality and intracerebral hemorrhage rates in the thrombolysis group.
- Adjusted analysis revealed intracerebral hemorrhage as a predictor of mortality, but thrombolysis was not a significant predictor.
Conclusions:
- Thrombolysis is infrequently administered for pediatric AIS, with increasing hospital utilization observed.
- Risks of intracerebral hemorrhage and mortality associated with pediatric thrombolysis appear low, comparable to adult data.
- Further investigation is warranted to establish the efficacy and optimize the safety of thrombolysis in children with AIS.
Background:
Thrombolysis for acute ischemic stroke (AIS) in children is yet to be proven efficacious, and there is limited information about its safety in large pediatric samples. Here we evaluate the safety outcomes associated with thrombolysis in children as well as the trend of hospital utilization over the past decade in the United States.
Methods:
A cohort of children with acute ischemic stroke was identified from the Kids' Inpatient Database for the years 1998-2009. Acute ischemic stroke was identified by the International Classification of Diseases-9 clinical classification software codes (109 and 110). Multivariate logistic regression analyses were used to assess covariates associated with outcomes of hospital mortality and intracerebral hemorrhage. The Cochran-Armitage test was employed for linear trend of discrete variables.
Results:
In this analysis, 9257 children were admitted with the diagnosis of acute ischemic stroke; only 67 (0.7%) received thrombolysis. Thrombolysis-treated children were older than the rest of the cohort (13.1 ± 7.3 vs 8.18 ± 7.5; P < 0.0001) and they had a longer hospital stay (median 11 vs 6 days; P < 0.0001). Gender, race, and family income approximated by postal code were similar among the treated and untreated children. Unadjusted analysis showed higher hospital mortality (10.45% vs 6.14%; P = 0.06) and intracerebral hemorrhage (2.99% vs 0.77%; P = 0.08) in the thrombolysis group. Adjusted analysis showed that intracerebral hemorrhage is predictive of a higher hospital mortality (odds ratio 3.43; 95% confidence interval 1.89-6.22), whereas thrombolysis was not (odds ratio 1.78; 95% confidence interval 0.86-3.64). The overall rate of thrombolysis per 3 years intervals had increased from 5.2 to 9.7 per 1000 children with acute ischemic stroke (P = 0.02). This increase was mainly seen in non-children hospitals (P = 0.01).
Conclusion:
Thrombolysis for acute ischemic stroke is infrequently used in children. There is a trend toward higher risks of intracerebral hemorrhage and hospital mortality, although these risks are as low as those reported in adult population. The hospitals' utilization of thrombolysis in children has increased during the study period.
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