Status Epilepsy Syndromes Made Easy: Pediatric Perspectives
Bibliographic record
Abstract
Introduction: Refractory Status Epilepsy Syndrome is a heterogeneous group of diseases associated with status epilepsy. Literature and definition have been conflicting and confusing in terms of their nomenclatures. New-onset refractory status epilepticus (NORSE) is a syndrome characterized by new onset refractory seizures in a previously health child. Febrile infection-related epilepsy syndrome (FIRES) is a similar syndrome now considered a variant of NORSE and is defined as a febrile event taking place between twenty-four hours and two weeks prior to the commencement of refractory status epilepticus. An autoimmune or inflammatory etiology is often implied in both conditions because infection is rarely identified. Aim: This review provides an update on hypotheses, etiology, pathophysiology, clinical features, diagnosis, laboratory evaluation, treatment, and perspectives for NORSE/FIRES. Methods: A PubMed Clinical Queries search is performed using keywords of NORSE and FIRES, on human subjects up to May 2025. All reviews, systematic reviews, case series and case reports were included. Results: Seizures are typically recalcitrant in NORSE/FIRES. Treatments include anti-seizure medications (ASM), ketogenic diet, immunotherapy (intravenous immunoglobulin ± plasmapheresis ± corticosteroid). The prognosis is usually poor. Most children would suffer refractory epilepsy and associated cognitive impairment if they survived. Guidelines and new consensus on NORSE/FIRES terminology have aided clinicians in managing status epilepticus in a previously healthy child that occurs ± a minor febrile episode. When an autoimmune or paraneoplastic condition is subsequently identified, the condition will be named accordingly. Conclusions: NORSE and FIRES are similar conditions except that vagus nerve stimulation appears to be more efficacious in NORSE than FIRES. We propose to define these heterogeneous and confusing conditions as “NOSES” as a two-criteria syndrome: New Onset + Status Epilepticus Syndrome, lasting for over 24 h despite the use of two standard ASM. Autoimmune, paraneoplastic and infectious encephalitis are specific diagnoses of NOSES with etiology subsequently identified.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".