期刊
PEDIATRIC CRITICAL CARE MEDICINE
卷 14, 期 6, 页码 601-609出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/PCC.0b013e318291755a
关键词
electroencephalography; extracorporeal life support; pediatrics; seizures; status epilepticus
资金
- Ruth D. & Ken M. Davee Pediatric Neurocritical Care Program
- NINDS
Objectives: The prevalence of electrographic seizures or nonconvulsive status epilepticus and the effect of such seizures in children treated with extracorporeal cardiac life support are not known. We investigated the occurrence of electrographic abnormalities, including asymmetries in amplitude or frequency of the background rhythm and interictal activity in children undergoing extracorporeal cardiac life support and their association with seizures. We compared mortality and radiologic evidence of neurologic injury between patients with seizures and those without seizures. Design: Retrospective review of medical records and the Extracorporeal Life Support Organization database. Setting: PICU at a single institution. Patients: All pediatric patients up to 18 years old, who had extracorporeal cardiac life support and continuous electroencephalography monitoring between the years 2006 and 2011. Interventions: None. Measurements and Main Results: Nineteen patients treated with extracorporeal cardiac life support underwent continuous electroencephalography monitoring. Seizures occurred in four patients (21%) and were exclusively nonconvulsive in three patients. Two of these four patients had nonconvulsive status epilepticus. Interictal discharges on electroencephalography were associated with seizures (odds ratio, 19.5 [95% CI, 1.29-292.75]; p = 0.03). Only 50% of the seizures were detected in the first hour of monitoring, whereas all seizures were detected within 24 hours. All patients with seizures had structural abnormalities seen on neuroimaging. Seizures were not significantly associated with increased mortality. To evaluate for ascertainment bias, we compared outcomes between patients who underwent extracorporeal cardiac life support and received continuous electroencephalography monitoring and those patients who underwent extracorporeal cardiac life support during the study period but did not receive electroencephalography (n = 30). Conclusions: Seizures are common in children during extracorporeal cardiac life support, and most seizures are nonconvulsive. In patients undergoing extracorporeal cardiac life support, clinical features are unreliable indicators of the presence of seizures. The presence of seizures is suggestive of CNS injury. This study is limited by the exclusion of neonates, a feature of the clinical use of electroencephalography at our institution. Although seizures were not associated with increased mortality, further prospective studies in larger populations are needed to assess the long-term morbidity associated with seizures during extracorporeal cardiac life support.
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