Pediatric Absence Status Epilepticus MCQ — NEET PG Practice Question | NEETPGAI
Pediatric Absence Status Epilepticus
medium
smile Pediatrics
A 9-year-old girl with childhood absence epilepsy on suboptimal valproate presents with a 6-hour history of staring, slowed responses, frequent eye blinking, and intermittent perioral myoclonic twitches. She is afebrile with no focal neurological deficits. An emergent EEG is performed. The pattern marked **A** in the diagram—continuous or near-continuous generalized 2.5–4 Hz spike-and-wave discharges with impaired consciousness—is documented. What is the most appropriate immediate pharmacological management?
A. Intravenous levetiracetam monotherapy as first-line agent
B. Intravenous lorazepam 0.1 mg/kg followed by optimization of valproate dosing
C. Oral carbamazepine loading to suppress spike-wave activity
Intravenous phenytoin 15–20 mg/kg to terminate the discharge pattern
D.
Explanation
Why intravenous lorazepam 0.1 mg/kg is correct
The EEG pattern marked A—continuous or near-continuous generalized 2.5–4 Hz spike-and-wave discharges with clinical impairment of consciousness—is diagnostic of absence status epilepticus (ASE), a form of nonconvulsive status epilepticus (NCSE). According to ILAE NCSE Classification and Pellock's Pediatric Epilepsy, IV benzodiazepines (lorazepam 0.1 mg/kg or diazepam 0.2–0.3 mg/kg) are the first-line agents for ASE and typically produce dramatic clinical and EEG response within minutes. The patient's suboptimal valproate dosing is the likely precipitant, and optimization of valproate is the appropriate long-term strategy after acute termination.
Why each distractor is wrong
Intravenous phenytoin 15–20 mg/kg: Phenytoin is contraindicated in absence status epilepticus; it may exacerbate spike-wave activity and worsen clinical impairment. It is not used for ASE management.
Oral carbamazepine loading: Carbamazepine is explicitly contraindicated in absence seizures and ASE; it can precipitate or worsen absence status. It is inappropriate for this patient with idiopathic generalized epilepsy.
Intravenous levetiracetam monotherapy as first-line: While levetiracetam may be used as a second- or third-line agent in ASE, it is not first-line. IV benzodiazepines are the gold standard for immediate termination of ASE.
High-YieldNEET PG
Absence status epilepticus (continuous generalized 2.5–4 Hz spike-wave with altered consciousness) is a medical emergency requiring immediate IV benzodiazepine; avoid phenytoin and carbamazepine, which worsen absence seizures.
