Pediatric refractory status epilepticus: Predictors of in-hospital outcomes from a Chinese tertiary center.

Abstract

Refractory status epilepticus (RSE) is a life-threatening neurological emergency in children. However, real-world evidence on pediatric RSE remains limited. This study characterized treatment patterns, in-hospital outcomes, and predictors of clinical outcomes within a resource-constrained regional referral network. We performed a single-center retrospective cohort study of pediatric patients admitted with RSE between March 2018 and March 2026. Demographic, clinical, treatment, and outcome data were systematically collected. A total of 215 pediatric RSE episodes were included (median age, 8.0 years; interquartile range [IQR], 5.8-11.8 years); 45.1% were female, and 39.5% had a history of epilepsy. All patients received benzodiazepines as first-line therapy, but only 67 episodes received guideline-recommended dosing. Diazepam, levetiracetam, and midazolam infusion were the most commonly used first-, second-, and third-line therapies, respectively. Favorable discharge outcomes were observed in 50.7% of patients and were independently associated with prior epilepsy (odds ratio [OR], 2.379; 95% confidence interval [CI], 1.07-5.27), adequate first-line benzodiazepine dosing (OR, 2.104; 95% CI, 1.02-4.33), and shorter duration of status epilepticus (OR, 1.991; 95% CI, 1.53-2.58). In-hospital mortality was 15.3% and was associated with acute etiologies (OR, 3.265; 95% CI, 1.27-8.40); prior epilepsy was inversely associated with mortality (OR, 0.328; 95% CI: 0.15-0.73). In-hospital mortality in pediatric RSE is associated with acute etiologies, whereas prior epilepsy is associated with lower mortality. Favorable functional outcomes are associated with prompt guideline-concordant first-line treatment and shorter seizure duration. These findings suggest that key prognostic determinants of pediatric RSE are consistent across different resource settings.