Abstract W MP113: Transient Ischemic Attacks Requiring Hospitalization of Children in the United States: Kids’ Inpatient Database 2003-2009
Objective: To assess the prevalence of and risk factors for transient ischemic attacks requiring hospitalization in children in a large national sample.
Methods: Using the Healthcare Cost and Utilization Project Kids’ Inpatient Database, ICD-9 code (435.XX) identified children 1-18 year(s) admitted for TIA from 2003-2009. Descriptive analysis was performed to identify patient characteristics; and trend analysis was performed to determine any change in annual average hospitalization days from 2003-2009 utilizing the Cochran-Armitage trend test.
Results: TIA was the primary diagnosis for hospitalization in 531 children over the 3-year sample (Table). Important secondary diagnoses during the same hospital admission included sickle cell disease (20%), congenital heart disease (11%), migraine (12%), moyamoya disease (10%) and stroke (4%). Anemia, coagulopathy, diabetes, hypertension, and obesity were rare co-morbid conditions, each noted in ≤6% of children. TIAs were more common in adolescents with 67% occurring in those aged 11-18 years. The mean length of stay decreased from 3.0 days (95% confidence interval (CI) 2.4 -3.6) in 2003 to 2.3 days (95% CI 2.0-2.7) in 2009 (p<0.04). No children died; 97% were discharged to home. During the same time period 2590 children were admitted with ischemic stroke; therefore 4.8 children with ischemic stroke were admitted for every child with TIA.
Conclusion: Recognized risk factors for TIA including sickle cell disease, congenital heart disease, moyamoya, recent stroke and migraine were present in <60% of children. Admissions for ischemic stroke were about 5-fold more common than TIA in children. Further study is required to understand the risk of stroke after TIA in children to guide appropriate evaluation and treatment.
Author Disclosures: M.M. Adil: None. A.I. Qureshi: None. L.A. Beslow: None. L.C. Jordan: None.
- © 2014 by American Heart Association, Inc.