Risk Factors Associated with Death in In-Hospital Pediatric Convulsive Status Epilepticus

Tobias Loddenkemper, Tanvir U. Syed, Sriram Ramgopal*, Deepak Gulati, Sikawat Thanaviratananich, Sanjeev V. Kothare, Amer Alshekhlee, Mohamad Z. Koubeissi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

Objective: To evaluate in-patient mortality and predictors of death associated with convulsive status epilepticus (SE) in a large, multi-center, pediatric cohort. Patients and Methods: We identified our cohort from the KID Inpatient Database for the years 1997, 2000, 2003 and 2006. We queried the database for convulsive SE, associated diagnoses, and for inpatient death. Univariate logistic testing was used to screen for potential risk factors. These risk factors were then entered into a stepwise backwards conditional multivariable logistic regression procedure. P-values less than 0.05 were taken as significant. Results: We identified 12,365 (5,541 female) patients with convulsive SE aged 0-20 years (mean age 6.2 years, standard deviation 5.5 years, median 5 years) among 14,965,571 pediatric inpatients (0.08%). Of these, 117 died while in the hospital (0.9%). The most frequent additional admission ICD-9 code diagnoses in addition to SE were cerebral palsy, pneumonia, and respiratory failure. Independent risk factors for death in patients with SE, assessed by multivariate calculation, included near drowning (Odds ratio [OR] 43.2; Confidence Interval [CI] 4.4-426.8), hemorrhagic shock (OR 17.83; CI 6.5-49.1), sepsis (OR 10.14; CI 4.0-25.6), massive aspiration (OR 9.1; CI 1.8-47), mechanical ventilation >96 hours (OR9; 5.6-14.6), transfusion (OR 8.25; CI 4.3-15.8), structural brain lesion (OR7.0; CI 3.1-16), hypoglycemia (OR5.8; CI 1.75-19.2), sepsis with liver failure (OR 14.4; CI 5-41.9), and admission in December (OR3.4; CI 1.6-4.1). African American ethnicity (OR 0.4; CI 0.2-0.8) was associated with a decreased risk of death in SE. Conclusion: Pediatric convulsive SE occurs in up to 0.08% of pediatric inpatient admissions with a mortality of up to 1%. There appear to be several risk factors that can predict mortality. These may warrant additional monitoring and aggressive management.

Original languageEnglish (US)
Article numbere47474
JournalPloS one
Volume7
Issue number10
DOIs
StatePublished - Oct 26 2012

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)
  • General

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