Management of Febrile Seizures in Children
Acute Seizure Management
- The American Academy of Pediatrics recommends administering lorazepam 0.05-0.1 mg/kg IV (maximum 4 mg) given slowly at 2 mg/min as first-line treatment for acute seizure management in children with febrile seizures 1, 2, 3
- The American Academy of Pediatrics suggests that rectal diazepam should be administered when IV access is not available, and IM diazepam is not recommended due to erratic absorption 1
Immediate Supportive Care
- The American Heart Association recommends positioning the child on their side, protecting the head from injury, and removing harmful objects from the environment to prevent injury during a seizure 3
- The American Academy of Pediatrics advises against restraining the patient or placing anything in the mouth during active seizure activity 1, 3
- The American Heart Association recommends assessing and securing airway, breathing, and circulation immediately 3
Critical Assessment for Serious Bacterial Infection
- The Centers for Disease Control and Prevention recommend measuring blood glucose concentration immediately with a glucose oxidase strip in any child who is still convulsing or unrousable 4, 5, 6
- The American Academy of Pediatrics suggests performing lumbar puncture in children under 18 months with febrile seizures, especially if there are clinical signs of meningism, after a complex convulsion, or if the child is systemically ill 4, 5, 6
Seizure Classification and Prognosis
- The International League Against Epilepsy defines simple febrile seizures as brief (<15 minutes), generalized, occurring once in 24 hours in children aged 6-60 months with fever ≥100.4°F without CNS infection 1, 3
- The International League Against Epilepsy defines complex febrile seizures as prolonged (>15 minutes), focal, or occurring more than once within 24 hours 1, 3
Fever Management
- The American Academy of Pediatrics recommends treating fever with paracetamol (acetaminophen) to promote comfort and prevent dehydration, though antipyretics do not prevent febrile seizures or reduce recurrence risk 6, 1, 3
- The American Academy of Pediatrics advises against using physical methods such as fanning, cold bathing, and tepid sponging to reduce fever, as they cause discomfort 6
Disposition and Follow-up
- The American Academy of Pediatrics recommends admitting children with febrile seizures who have not returned to neurologic baseline, have concerning neurologic findings, require ongoing seizure management, or are systemically ill 2, 3, 4, 5, 6
- The American Academy of Pediatrics suggests that factors favoring admission after a first convulsion include a complex convulsion lasting longer than 20 minutes, though CT or MRI will usually be performed first in this scenario 4, 5, 6
Long-term Prophylaxis
- The American Academy of Pediatrics recommends against continuous or intermittent anticonvulsant prophylaxis for simple febrile seizures, as the potential toxicities outweigh the minimal risks 1, 3
Parent Education
- The American Academy of Pediatrics advises that simple febrile seizures have an excellent prognosis with no long-term adverse effects on IQ, academic performance, or neurocognitive function 3
- The American Academy of Pediatrics recommends educating caregivers about practical home management and when to seek emergency care, as recurrence risk is approximately 30% overall, with 50% probability in children younger than 12 months at first seizure 1, 3, 6