Early Amiodarone in Shockable Cardiac Arrest

"The use of a modified treatment protocol by emergency medical services where the initial dose of amiodarone is given after the second defibrillator shock, during the same two-minute cycle as the initial dose of epinephrine, for out-of-hospital cardiac arrest due to a shockable rhythm (ventricular fibrillation or ventricular tachycardia) that is persistent or recurs after at least one defibrillation attempt.~If an EMS agency is assigned to this arm, no downstream care after the initial dose of amiodarone is dictated by the study."

"The use of a usual care treatment protocol by emergency medical services where the initial dose of amiodarone is given after the third defibrillator shock, one two-minute cycle after the initial dose of epinephrine, for out-of-hospital cardiac arrest due to a shockable rhythm (ventricular fibrillation or ventricular tachycardia) that is persistent or recurs after at least one defibrillation attempt.~If an EMS agency is assigned to this arm, no downstream care after the initial dose of amiodarone is dictated by the study."