Development and Validation of a Postprocedure Stroke Screening Tool in Children With Cardiac Disease

BackgroundCardiac catheterization in children with heart disease is associated with an increased risk of arterial ischemic stroke. We created and evaluated the diagnostic performance of a bedside screening tool administered postprocedure to identify arterial ischemic stroke.MethodsWe developed a postprocedure stroke screen comprising history of stroke, responsiveness, command following, speech, facial and limb strength symmetry, new seizure, and caregiver concern. We compared the performance of the screening tool in a retrospective cohort of 21 patients with a postcatheterization arterial ischemic stroke and a prospective cohort of 100 consecutive control patients after cardiac catheterization.ResultsThe postprocedure stroke screen delivered a maximum Youden index ranging from 0.810 to 0.937 at threshold scores of 2 or 2.5 and gave a sensitivity and specificity >0.9. The area under the receiver operating characteristic curve ranged from 0.931 to 0.946.ConclusionsWe developed a screening tool with high sensitivity and specificity to identify postcatheterization arterial ischemic stroke in children.