What is the first-line antiarrhythmic in pediatric VT/VF if amiodarone is available?

What is the first-line antiarrhythmic in pediatric VT/VF if amiodarone is available?

• A. Lidocaine 1 mg/kg IV/IO
• B. Amiodarone 5 mg/kg IV/IO per dose; may give a second dose.
• C. Procainamide 20 mg/kg
• D. Sotalol 1 mg/kg

Answer: (B)

In pediatric VT/VF during arrest, the antiarrhythmic given first-line when amiodarone is available is amiodarone 5 mg/kg IV/IO per dose, and you may give a second dose. This choice is preferred because amiodarone acts on multiple cardiac ion channels, helping restore and stabilize the rhythm across different VT/VF scenarios, and it tends to have a favorable safety profile in children during resuscitation. The dosing allows one repeat dose for a total of up to about 15 mg/kg if needed, which provides a strong option to suppress recurrent arrhythmias during the arrest period. Lidocaine is a reasonable alternative if amiodarone isn’t available, but it is not the first-line choice when amiodarone is on hand. Procainamide and sotalol are not used as the initial antiarrhythmic in this acute, pulseless context due to concerns about hemodynamic effects and proarrhythmia, and they’re reserved for more specific situations outside immediate resuscitation.

In pediatric VT/VF during arrest, the antiarrhythmic given first-line when amiodarone is available is amiodarone 5 mg/kg IV/IO per dose, and you may give a second dose. This choice is preferred because amiodarone acts on multiple cardiac ion channels, helping restore and stabilize the rhythm across different VT/VF scenarios, and it tends to have a favorable safety profile in children during resuscitation. The dosing allows one repeat dose for a total of up to about 15 mg/kg if needed, which provides a strong option to suppress recurrent arrhythmias during the arrest period.

Lidocaine is a reasonable alternative if amiodarone isn’t available, but it is not the first-line choice when amiodarone is on hand. Procainamide and sotalol are not used as the initial antiarrhythmic in this acute, pulseless context due to concerns about hemodynamic effects and proarrhythmia, and they’re reserved for more specific situations outside immediate resuscitation.