Administering Repeat Dose of Epinephrine IV for Neonatal Resuscitation

Rationale and Recommendations

The International Consensus on Cardiopulmonary Resuscitation recommends administering further doses of epinephrine every 3 to 5 minutes, preferably intravascularly, if the heart rate remains less than 60/min in newborns with persistent bradycardia despite adequate ventilation and chest compressions 1, 2, 3
The American Heart Association suggests that the intravenous route is strongly preferred over endotracheal administration because IV epinephrine achieves higher plasma concentrations more rapidly and results in shorter time to return of spontaneous circulation (ROSC) 2, 4, 5
The recommended IV dose of epinephrine remains 0.01-0.03 mg/kg per dose, with higher doses (>0.03 mg/kg) not recommended due to increased mortality risk without improved long-term survival 6

The American Academy of Pediatrics recommends continuing chest compressions and ventilation with 100% oxygen using a 3:1 compression-to-ventilation ratio, and administering repeat IV epinephrine 0.01-0.03 mg/kg immediately if heart rate remains <60 bpm 1, 7
Volume expansion with blood products is indicated when there is documented blood loss and the infant is not responding to resuscitation, but epinephrine takes precedence when heart rate remains <60 bpm despite adequate ventilation and chest compressions 6
The American Heart Association advises against delaying repeat epinephrine while preparing for blood transfusion or other interventions, as time is critical for survival and neurologic outcomes 1, 6