Annals of Indian Academy of Neurology
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ORIGINAL ARTICLE
Year : 2016  |  Volume : 19  |  Issue : 2  |  Page : 188-194

Clinical profile and treatment outcome of febrile infection-related epilepsy syndrome in South Indian children


Division of Pediatric Neurology, Department of Neurology, Amrita Institute of Medical Sciences, Kochi, Kerala, India

Correspondence Address:
Kollencheri Puthenveettil Vinayan
Division of Pediatric Neurology, Department of Neurology, Amrita Institute of Medical Sciences, Kochi - 682 041, Kerala
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0972-2327.173305

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Purpose: To describe the clinical features and outcome of febrile infection-related epilepsy syndrome (FIRES), a catastrophic epileptic encephalopathy, in a cohort of South Indian children. Materials and Methods: We performed a retrospective chart review of a cohort of children with previously normal development who presented with status epilepticus or encephalopathy with recurrent seizures following a nonspecific febrile illness during the period between January 2007 and January 2012. They were divided into two groups super refractory status epilepticus (SRSE) and refractory status epilepticus (RSE) depending on the duration and severity of the seizures. Key Findings: Fifteen children who met the inclusion criteria were included for the final analysis. The age of the children at presentation ranged 3-15 years (median 6.3 years). All the children presented with prolonged or recurrent seizures occurring 1-12 days (median 4 days) after the onset of fever. Eight children had SRSE while seven children had refractory seizures with encephalopathy. Cerebrospinal fluid (CSF) analysis was done in all the children in the acute phase, and the cell count ranged 0-12 cells/μL (median 2 cells/μL) with normal sugar and protein levels. Initial neuroimaging done in all children (MRI in 10 and CT in 5), and it was normal in 13 children. Treatment modalities included multiple antiepileptic drugs (AEDs) (4-9 drugs) (median 5 drugs). Midazolam (MDZ) infusion was administered in seven patients. Eight patients required barbiturate coma to suppress the seizure activity. The duration of the barbiturate coma ranged 2-90 days (median 3 days). Steroids were used in 14 children and intravenous immunoglobulin (2 g/kg) in 7 children. Three children died in the acute phase. All children were maintained on multiple AEDs till the last follow-up, the number of AEDs ranged 1-6 (median 5 AEDs). The patients with super refractory status in the acute phase were found to be more severely disabled at the follow-up; the median score of these patients on the Glasgow Outcome Scale (GOS) was 2 compared to 5 in the RSE group. Significance: This study reports one of the largest single center cohorts from India, with an adverse long-term developmental and seizure outcome. The duration and severity of seizures in the acute period correlated directly with the short-term and long-term clinical outcomes. There is an urgent need for developing new effective therapeutic strategies to treat this acute catastrophic epileptic syndrome.


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