Management of Hyponatremia-Induced Seizures in Children

Initial Emergency Actions

• The American Heart Association recommends helping the child to the ground if seizing, placing them on their side in recovery position to prevent aspiration, clearing the area around them to minimize injury risk, and not restraining the child or putting anything in their mouth 2, 3
• The American Heart Association suggests providing high-flow oxygen and ensuring airway patency, and staying with the child throughout the seizure 2, 4

Correction Rate Guidelines

• The American College of Physicians recommends an initial target to increase sodium by 4-6 mmol/L over the first 6 hours or until seizures resolve, with a maximum total correction of 8 mmol/L in 24 hours to prevent osmotic demyelination syndrome 1, 5

Monitoring Protocol

• The American Academy of Pediatrics recommends frequent sodium checks every 2 hours during active seizure management and initial correction phase, and every 4 hours after seizure resolution until stable 1, 5

Adjunctive Anticonvulsant Use

• The British Medical Journal suggests that lorazepam 0.1 mg/kg IV/IO may be given as adjunctive therapy if seizures persist despite hypertonic saline or if the child has a seizure disorder 4

Subsequent Management After Seizure Control

• The American College of Physicians recommends determining volume status, checking urine sodium, and ongoing treatment based on volume status, including fluid restriction and maintenance fluids 5
• The American College of Physicians suggests using isotonic solutions for ongoing IV fluid needs and avoiding hypotonic fluids as they increase hyponatremia risk 5