Neonatal seizures in the U.S. National Inpatient Population: Prevalence and outcomes

Background: Seizures are the most frequent neurological manifestation in neonates. Prevalence of neonatal seizures has not been well described in relationship with gestational age (GA). Also, the impact of seizures on neonatal mortality has not been quantified. This study aims to determine 1) preval...

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Main Authors: Swetha Padiyar, Leen Nusairat, Amer Kadri, Jalal Abu-Shaweesh, Hany Aly
Format: Article
Language:English
Published: Elsevier 2020-06-01
Series:Pediatrics and Neonatology
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Online Access:http://www.sciencedirect.com/science/article/pii/S187595721930556X
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author Swetha Padiyar
Leen Nusairat
Amer Kadri
Jalal Abu-Shaweesh
Hany Aly
author_facet Swetha Padiyar
Leen Nusairat
Amer Kadri
Jalal Abu-Shaweesh
Hany Aly
author_sort Swetha Padiyar
collection DOAJ
description Background: Seizures are the most frequent neurological manifestation in neonates. Prevalence of neonatal seizures has not been well described in relationship with gestational age (GA). Also, the impact of seizures on neonatal mortality has not been quantified. This study aims to determine 1) prevalence of neonatal seizures in all GA groups, 2) associated mortality in each GA group and 3) impact of seizures on length of stay (LOS) of survivors in each GA group. Methods: Data from the national Kids' Inpatient Database (KID) for the years 2006, 2009 and 2012 was used in the study. All admitted infants with a documented GA were included in the study. All categorical variables were analyzed using Chi-square test, continuous variables were analyzed using t-test, and logistic regression analysis used to calculate odds ratio (OR) and 95% confidence intervals (CI). Results: A total of 10, 572,209 infants were included, of whom 4400 infants (0.04%) had seizures. The highest prevalence was at 24 weeks (0.12%). Overall mortality rate of patients with seizures was 4% with OR = 2.24 (95% CI = 1.90–2.65, p < 0.001). The correlation of seizure with mortality was significant after 33 weeks GA with greatest impact at 33–36 weeks GA (OR = 46.38 (95% CI = 26.86–80.08, p < 0.001). Seizures were associated with increased median LOS from 2 to 4 days (p < 0.001). Conclusion: The prevalence of seizures varies according to gestational age ranging from 0.02% to 0.12%. The highest prevalence is at 24 weeks GA. The greatest impact for seizures on mortality is at 33–36 weeks GA.
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spelling doaj-art-29793b93a12a4be8b2ed5421f1f4eb5d2025-08-20T02:01:46ZengElsevierPediatrics and Neonatology1875-95722020-06-0161330030510.1016/j.pedneo.2019.12.006Neonatal seizures in the U.S. National Inpatient Population: Prevalence and outcomesSwetha Padiyar0Leen Nusairat1Amer Kadri2Jalal Abu-Shaweesh3Hany Aly4Department of Neonatology, Metrohealth Medical Center/Case Western Reserve University School of Medicine, Cleveland, OH, USA; Cleveland Clinic Children's, Cleveland, OH, USA; Corresponding author. Department of Neonatology, Metrohealth Medical Center, 2500 Metrohealth Drive, Cleveland, OH, 44109, USA. Fax: +216 778 3252.Cleveland Clinic Children's, Cleveland, OH, USACleveland Clinic Children's, Cleveland, OH, USACleveland Clinic Children's, Cleveland, OH, USACleveland Clinic Children's, Cleveland, OH, USABackground: Seizures are the most frequent neurological manifestation in neonates. Prevalence of neonatal seizures has not been well described in relationship with gestational age (GA). Also, the impact of seizures on neonatal mortality has not been quantified. This study aims to determine 1) prevalence of neonatal seizures in all GA groups, 2) associated mortality in each GA group and 3) impact of seizures on length of stay (LOS) of survivors in each GA group. Methods: Data from the national Kids' Inpatient Database (KID) for the years 2006, 2009 and 2012 was used in the study. All admitted infants with a documented GA were included in the study. All categorical variables were analyzed using Chi-square test, continuous variables were analyzed using t-test, and logistic regression analysis used to calculate odds ratio (OR) and 95% confidence intervals (CI). Results: A total of 10, 572,209 infants were included, of whom 4400 infants (0.04%) had seizures. The highest prevalence was at 24 weeks (0.12%). Overall mortality rate of patients with seizures was 4% with OR = 2.24 (95% CI = 1.90–2.65, p < 0.001). The correlation of seizure with mortality was significant after 33 weeks GA with greatest impact at 33–36 weeks GA (OR = 46.38 (95% CI = 26.86–80.08, p < 0.001). Seizures were associated with increased median LOS from 2 to 4 days (p < 0.001). Conclusion: The prevalence of seizures varies according to gestational age ranging from 0.02% to 0.12%. The highest prevalence is at 24 weeks GA. The greatest impact for seizures on mortality is at 33–36 weeks GA.http://www.sciencedirect.com/science/article/pii/S187595721930556Xmortalityneonatal convulsionsneonatal ICUneonatal seizuresprematurity
spellingShingle Swetha Padiyar
Leen Nusairat
Amer Kadri
Jalal Abu-Shaweesh
Hany Aly
Neonatal seizures in the U.S. National Inpatient Population: Prevalence and outcomes
Pediatrics and Neonatology
mortality
neonatal convulsions
neonatal ICU
neonatal seizures
prematurity
title Neonatal seizures in the U.S. National Inpatient Population: Prevalence and outcomes
title_full Neonatal seizures in the U.S. National Inpatient Population: Prevalence and outcomes
title_fullStr Neonatal seizures in the U.S. National Inpatient Population: Prevalence and outcomes
title_full_unstemmed Neonatal seizures in the U.S. National Inpatient Population: Prevalence and outcomes
title_short Neonatal seizures in the U.S. National Inpatient Population: Prevalence and outcomes
title_sort neonatal seizures in the u s national inpatient population prevalence and outcomes
topic mortality
neonatal convulsions
neonatal ICU
neonatal seizures
prematurity
url http://www.sciencedirect.com/science/article/pii/S187595721930556X
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AT jalalabushaweesh neonatalseizuresintheusnationalinpatientpopulationprevalenceandoutcomes
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