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Beslow LA, Abend NS, Gindville MC, et al. Pediatric Intracerebral Hemorrhage: Acute Symptomatic Seizures and Epilepsy. JAMA Neurol. 2013;70(4):448–454. doi:10.1001/jamaneurol.2013.1033
Author Affiliations: Section of Child Neurology, Departments of Pediatrics and Neurology, Yale University School of Medicine, New Haven, Connecticut (Dr Beslow); Division of Neurology, The Children's Hospital of Philadelphia, Pennsylvania (Drs Abend, Licht, Smith, and Ichord, and Ms Bastian); Division of Child Neurology, Department of Neurology, Vanderbilt University Medical Center, Nashville, Tennessee (Ms Gindville and Dr Jordan); and Division of Cerebrovascular Neurology, Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland (Dr Hillis).
Importance Seizures are believed to be common presenting symptoms in neonates and children with spontaneous intracerebral hemorrhage (ICH). However, few data are available on the epidemiology of acute symptomatic seizures or the risk for later epilepsy.
Objective To define the incidence of and explore risk factors for seizures and epilepsy in children with spontaneous ICH. Our a priori hypotheses were that younger age at presentation, cortical involvement of ICH, acute symptomatic seizures after presentation, ICH due to vascular malformation, and elevated intracranial pressure requiring urgent intervention would predict remote symptomatic seizures and epilepsy.
Design Prospective cohort study conducted between March 1, 2007, and January 1, 2012.
Setting Three tertiary care pediatric hospitals.
Participants Seventy-three pediatric subjects with spontaneous ICH including 20 perinatal (≥37 weeks' gestation to 28 days) and 53 childhood subjects (>28 days to <18 years at presentation).
Main Outcome Measures Acute symptomatic seizures (clinically evident and electrographic-only seizures within 7 days), remote symptomatic seizures, and epilepsy.
Results Acute symptomatic seizures occurred in 35 subjects (48%). Acute symptomatic seizures as a presenting symptom of ICH occurred in 12 perinatal (60%) and 19 childhood (36%) subjects (P = .07). Acute symptomatic seizures after presentation occurred in 7 children. Electrographic-only seizures were present in 9 of 32 subjects (28%) with continuous electroencephalogram monitoring. One-year and 2-year remote symptomatic seizure-free survival rates were 82% (95% CI, 68-90) and 67% (95% CI, 46-82), respectively. One-year and 2-year epilepsy-free survival rates were 96% (95% CI, 83-99) and 87% (95% CI, 65-95), respectively. Elevated intracranial pressure requiring acute intervention was a risk factor for seizures after presentation (P = .01; Fisher exact test), remote symptomatic seizures, and epilepsy (P = .03, and P = .04, respectively; log-rank test).
Conclusions and Relevance Presenting seizures are common in perinatal and childhood ICH. Continuous electroencephalography may detect electrographic seizures in some subjects. Single remote symptomatic seizures occur in many, and development of epilepsy is estimated to occur in 13% of patients at 2 years. Elevated intracranial pressure requiring acute intervention is a risk factor for acute seizures after presentation, remote symptomatic seizures, and epilepsy.
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