A 3-year-old boy from rural Maharashtra presents to the emergency department with continuous generalized tonic-clonic seizures for 18 minutes. He had a fever 2 days ago (now afebrile). On arrival, he is actively seizing. Airway is patent, oxygen saturation 94% on room air. IV access has been established. What is the most appropriate immediate next step in management?

Explanation

## Status Epilepticus: First-Line Management **Key Point:** Status epilepticus (SE) is defined as seizures lasting ≥5 minutes or recurrent seizures without full recovery of consciousness between episodes. This child has been seizing for 18 minutes and requires immediate pharmacological intervention. ### Treatment Algorithm for Pediatric Status Epilepticus ```mermaid flowchart TD A["Seizure ≥5 min or recurrent"]:::outcome --> B["Secure airway, O₂, IV access"]:::action B --> C["First-line: Benzodiazepine"]:::action C --> D["Lorazepam 0.1 mg/kg IV<br/>or Diazepam 0.3 mg/kg IV"]:::action D --> E{"Seizure stopped?"}:::decision E -->|"Yes"| F["Observe, identify cause"]:::outcome E -->|"No (after 5 min)"| G["Second-line: Phenytoin or Levetiracetam"]:::action G --> H{"Seizure stopped?"}:::decision H -->|"No (after 10-15 min)"| I["Third-line: Intubation + ICU"]:::urgent ``` **High-Yield:** The **ILCM mnemonic** for SE management: - **I**nitial: Benzodiazepines (lorazepam, diazepam) - **L**oading: Phenytoin, levetiracetam, or valproate - **C**ontinuous: Infusions if refractory - **M**aintenance: Long-term antiepileptic drugs ### Dosing in Pediatrics | Drug | Dose | Route | Onset | |------|------|-------|-------| | Lorazepam | 0.1 mg/kg (max 4 mg) | IV | 1–3 min | | Diazepam | 0.3 mg/kg (max 10 mg) | IV | 1–2 min | | Phenytoin | 15–20 mg/kg | IV (slow) | 10–20 min | | Levetiracetam | 20–30 mg/kg | IV | 5–10 min | **Clinical Pearl:** Lorazepam is preferred over diazepam in pediatric SE because it has longer duration of action (4–6 hours vs. 15–30 minutes), reducing the risk of seizure recurrence during the loading phase. **Warning:** Do NOT delay benzodiazepines to perform investigations. Prolonged SE (>30 min) causes neuronal injury, hyperthermia, rhabdomyolysis, and metabolic derangements. Airway is already patent and O₂ saturation acceptable; proceed with IV lorazepam immediately. ### Why Lumbar Puncture Is Not the First Step Although meningitis must be ruled out (fever history), **LP is deferred until seizures are controlled** because: 1. Ongoing seizure activity increases aspiration risk and complicates airway management. 2. Benzodiazepines do not mask meningeal signs for >30 minutes. 3. After seizure control, empiric antibiotics (ceftriaxone) are given pending LP results. [cite:Nelson Textbook of Pediatrics 21e Ch 609]