Structures seizure evaluation with EEG interpretation and anticonvulsant selection for pediatric populations. Use when evaluating pediatric seizures, interpreting pediatric EEGs, or selecting anticonvulsants for children.
Structures the evaluation, classification, acute management, and long-term treatment of seizures in children using the ILAE 2017 classification framework, age-specific epilepsy syndrome recognition, evidence-based anticonvulsant selection, and status epilepticus protocols.
Why This Skill Exists
Seizures are the most common pediatric neurologic emergency, with febrile seizures affecting 2-5% of children and epilepsy affecting approximately 1% of the pediatric population. The ILAE 2017 three-tier classification system (seizure type → epilepsy type → epilepsy syndrome) replaced outdated terminology and drives treatment selection. Different epilepsy syndromes require different medications — some anticonvulsants worsen certain epilepsies (e.g., carbamazepine in absence epilepsy). This skill enforces proper classification, syndrome-directed therapy, and standardized status epilepticus management.
Checkpoint A — Intake Verification
Required Intake Questions
What is the child's age (determines likely seizure syndrome)?
Describe the event in detail: what was the child doing before, during (motor activity, eye deviation, cyanosis, duration), and after (postictal state)?
相关技能
Was there witnessed loss of consciousness?
What is the total seizure duration? Was there clustering?
Has the child had fever? (if < 5 years, febrile seizure differential)
Is there a family history of seizures or epilepsy?
Are there developmental concerns or known neurologic conditions?
What medications is the child currently taking (including OTC and herbals)?
Was there any preceding head trauma?
If on anticonvulsants: current drug levels, recent dose changes, adherence?
Carbamazepine, oxcarbazepine, phenytoin, lamotrigine (worsen seizures via Na-channel blockade)
Step 3 — Febrile Seizures (Special Category)
Simple Febrile Seizure
Age 6 months to 5 years
Generalized tonic-clonic, duration < 15 minutes, does not recur within 24 hours
Temperature ≥ 38°C (100.4°F)
Normal neurologic exam after postictal period resolves
Management: no workup needed (no EEG, no imaging, no labs routinely); reassurance and antipyretic education
Complex Febrile Seizure
Focal features, duration > 15 minutes, recurrence within 24 hours, or abnormal postictal exam
Warrants: LP consideration (especially < 12 months or if meningitis suspected), EEG, possible MRI
AAP Febrile Seizure Guidance
EEG is NOT recommended after a simple febrile seizure (does not predict recurrence or epilepsy risk)
LP: perform if < 12 months with incomplete Hib/PCV vaccination; strongly consider if 12-18 months; consider if > 18 months with meningeal signs
Daily anticonvulsant prophylaxis is NOT recommended for simple febrile seizures
Recurrence risk: approximately 30% after first febrile seizure; risk factors: age < 18 months, lower temperature at seizure onset, family history
Step 4 — Acute Seizure / Status Epilepticus Protocol
Definition
Status epilepticus: seizure lasting > 5 minutes, or ≥ 2 seizures without return to baseline between episodes
Timed Protocol (Aligned with AES/NCS Guidelines)
Time Point
Action
0-5 min (stabilization)
ABCs, position, oxygen, suction, check glucose, monitor SpO2; if ≥ 5 min → treat
5-20 min (first-line)
Benzodiazepine: midazolam 0.2 mg/kg IM (max 10 mg) OR lorazepam 0.1 mg/kg IV (max 4 mg) OR diazepam 0.2-0.5 mg/kg rectal (max 20 mg); may repeat once at 5-10 min
20-40 min (second-line)
Fosphenytoin 20 mg PE/kg IV (max rate 3 mg PE/kg/min) OR levetiracetam 40-60 mg/kg IV (max 4500 mg) OR valproate 40 mg/kg IV (max 3000 mg)
40-60 min (refractory)
Repeat second-line agent if different from first OR begin continuous infusion: midazolam 0.2 mg/kg bolus → 0.05-2 mg/kg/hr
> 60 min (super-refractory)
ICU: pentobarbital, propofol (caution in children — propofol infusion syndrome), ketamine; continuous EEG monitoring
Step 5 — Chronic Anticonvulsant Selection and Monitoring
First-Line Agents by Seizure Type
Seizure Type
First-Line Options
Notes
Focal
Oxcarbazepine, levetiracetam, lamotrigine
Oxcarbazepine: watch for hyponatremia
Generalized tonic-clonic
Valproate, levetiracetam, lamotrigine
VPA: avoid in females of childbearing age if possible
Absence
Ethosuximide, valproate, lamotrigine
ESM for absence only; does not cover GTC
Infantile spasms
ACTH (high-dose, short course), vigabatrin
Vigabatrin first if tuberous sclerosis
Monitoring Requirements
Drug levels: phenytoin, phenobarbital, valproate, carbamazepine (others rarely needed)
CBC and LFTs at baseline and periodically for VPA, carbamazepine, phenytoin
VPA: monitor ammonia if lethargy develops; check for polycystic ovarian syndrome in adolescent females
Lamotrigine: titrate slowly (risk of Stevens-Johnson syndrome; increased risk with VPA co-therapy)
Levetiracetam: monitor for behavioral side effects (irritability, aggression) — common in children
Discontinuation Criteria
Consider discontinuation after 2 years seizure-free (most syndromes)
EEG before taper: normal EEG supports successful withdrawal
BECTS: may remit by mid-teens; trial off medication reasonable
JME: lifelong treatment typically required (high relapse rate off medication)
Step 6 — Diagnostic Workup
EEG
Obtain routine EEG for all new-onset unprovoked seizures (except simple febrile seizures)
Sleep-deprived EEG increases yield for generalized epilepsies (JME, CAE)