Febrile seizure: Difference between revisions
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== Background | ==Background== | ||
*50% of | *50% of patients never have temp >39 | ||
*Antipyretics do not offer significant improvements in recurrence rates of febrile seizures<ref>Rosenbloom E, et al. Do antipyretics prevent the recurrence of febrile seizures in children? A systemic review of randomized controlled trials and meta-analysis. Eur J Paediatr Neurol. 2013; 17:585-588.</ref> | *Antipyretics do not offer significant improvements in recurrence rates of febrile seizures<ref>Rosenbloom E, et al. Do antipyretics prevent the recurrence of febrile seizures in children? A systemic review of randomized controlled trials and meta-analysis. Eur J Paediatr Neurol. 2013; 17:585-588.</ref> | ||
===Prognosis=== | |||
*2-3% chance of developing epilepsy (1% for general population) | |||
*50% of pts <12 mo will have another simple febrile seizure | |||
*30% of pts >12 mo will have another simple febrile seizure | |||
==Clinical Presentation== | ==Clinical Presentation== | ||
*[[Seizure]] + [[fever]] | *[[Seizure]] + [[fever]] | ||
==Differential Diagnosis == | ==Differential Diagnosis== | ||
{{Pediatric seizure DDX}} | {{Pediatric seizure DDX}} | ||
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==Diagnosis== | ==Diagnosis== | ||
=== Simple versus Complex | ===Simple versus Complex=== | ||
*Simple | *Simple | ||
**Generalized tonic-clonic seizure | **Generalized tonic-clonic seizure | ||
** | **<15 min in duration | ||
**Age 6mo - 6yr | **Age 6mo - 6yr | ||
**Occurs only once in 24hr period | **Occurs only once in 24hr period | ||
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**INH ingestion | **INH ingestion | ||
== Management == | ==Management== | ||
===Ongoing Seizure=== | ===Ongoing Seizure=== | ||
See [[Seizure (peds)]] | See [[Seizure (peds)]] | ||
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**See [[pediatric fever of uncertain source]] | **See [[pediatric fever of uncertain source]] | ||
== Disposition | ==Disposition== | ||
===Discharge === | ===Discharge=== | ||
*Simple febrile seizure if pt at baseline | *Simple febrile seizure if pt at baseline | ||
**Follow-up in 1-2d | **Follow-up in 1-2d | ||
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*Ill-appearing | *Ill-appearing | ||
*Lethargy beyond postictal period | *Lethargy beyond postictal period | ||
== See Also | ==See Also== | ||
*[[Seizure]] | *[[Seizure]] | ||
*[[Fever (Peds)]] | *[[Fever (Peds)]] | ||
== References == | ==References== | ||
<references/> | <references/> | ||
[[Category:Peds]] | [[Category:Peds]] | ||
[[Category:Neuro]] | [[Category:Neuro]] |
Revision as of 01:17, 9 March 2016
Background
- 50% of patients never have temp >39
- Antipyretics do not offer significant improvements in recurrence rates of febrile seizures[1]
Prognosis
- 2-3% chance of developing epilepsy (1% for general population)
- 50% of pts <12 mo will have another simple febrile seizure
- 30% of pts >12 mo will have another simple febrile seizure
Clinical Presentation
Differential Diagnosis
Pediatric seizure
- Epileptic seizure
- First-time seizure
- Seizure with known seizure disorder
- Status epilepticus
- Temporal lobe epilepsy
- Non-compliance with or "outgrowing" AEDs
- Non-epileptic seizure
- Febrile seizure
- Brain inflammation
- Increased ICP
- Seizure with VP shunt
- Hydrocephalus
- Intracranial mass
- Toxicologic
- Metabolic abnormalities: hyponatremia, hypernatremia, hypocalcemia, hypomagnesemia, hypoglycemia, hyperglycemia
- Pyridoxine responsive seizure[2]
- Eclampsia
- Posterior reversible encephalopathy syndrome
- Impact seizure (head trauma)
- Other mimics
- Psychogenic nonepileptic seizure (pseudoseizure)
- Syncope (peds)
- Breath-holding spell
- Hyperventilation syndrome
- Migraine headache
- Movement disorders
- Narcolepsy/cataplexy
- Post-hypoxic myoclonus (Status myoclonicus)
- Infantile Spasms/West Syndrome
Pediatric fever
- Upper respiratory infection (URI)
- UTI
- Sepsis
- Meningitis
- Febrile seizure
- Pneumonia
- Acute otitis media
- Whooping cough
- Unclear source
- Kawasaki disease
- Neonatal HSV
- Specific virus
Diagnosis
Simple versus Complex
- Simple
- Generalized tonic-clonic seizure
- <15 min in duration
- Age 6mo - 6yr
- Occurs only once in 24hr period
- No focal features
- Complex
- Any exception to above
Work-Up
- Glucose in all pts
- Simple febrile seizure
- Neither labs nor neuroimaging are absolutely necessary
- Normal pediatric fever workup
- Complex febrile seizure
- Consider CBC, blood cx, UA, Ucx, CSF studies
- Consider CT if:
- Persistently abnormal neuro exam (esp w/ focality)
- Signs/symptoms of increased ICP
- pt has VP shunt
- Routine EEG not indicated
- Consider only if developmental delay or for focal symptoms
- Causes amenable to specific Tx
- Hypoglycemia
- Hyponatremia (water intoxication, dilution of formula)
- Hypocalcemia
- Hypomagnesemia
- INH ingestion
Management
Ongoing Seizure
See Seizure (peds)
Seizure Stopped
- Treat underlying infection if indicated
Disposition
Discharge
- Simple febrile seizure if pt at baseline
- Follow-up in 1-2d
- Complex febrile seizure if pt well-appearing, work-up normal
- Follow-up in 24hr
Admit
- Ill-appearing
- Lethargy beyond postictal period
See Also
References
- ↑ Rosenbloom E, et al. Do antipyretics prevent the recurrence of febrile seizures in children? A systemic review of randomized controlled trials and meta-analysis. Eur J Paediatr Neurol. 2013; 17:585-588.
- ↑ Baxter P. et al. Pyridoxine‐dependent and pyridoxine‐responsive seizures. Developmental Medicine & Child Neurology 2001, 43: 416–42