Epinephrine for Neonatal Resuscitation: The Limits of Knowledge

Know the Code: Medications for Resuscitation in Neonates

Resuscitations in the delivery room or the nursery cause significant stress for caregivers. Diligent preparation will improve the efficacy and safety of life-saving interventions and increase staff comfort. When establishment of an airway and delivery of positive pressure ventilation and chest compressions fail to result in return of spontaneous circulation, pharmacotherapeutic interventions should be considered. Epinephrine is first-line pharmacotherapy for severe bradycardia or cardiac arrest, increasing coronary arterial pressure and blood flow during chest compressions. Despite limited data regarding dosing and efficacy, the first dose of epinephrine may be delivered through the endotracheal tube during attainment of venous access (preferably a low-lying umbilical venous catheter in the delivery room). Intravenous dosing is preferred, and any facility caring for newborns must ensure optimized logistics including readily available dosing guidance and optimal flush volumes. After provision of epinephrine, additional medications may be considered, especially for resuscitations occurring outside of the immediate perinatal period, including normal saline, glucose, adenosine, atropine, and calcium. Clinicians must understand the indications, dosing, and monitoring parameters for these medications and ensure rapid availability for resuscitation. Every second truly counts in a neonatal resuscitation, and optimal understanding and preparation will ensure delivery of pharmacotherapy to optimize both patient outcomes and staff comfort.

Singapore Neonatal Resuscitation Guidelines 2021

Neonatal resuscitation is a coordinated, team-based series of timed sequential steps that focuses on a transitional physiology to improve perinatal and neonatal outcomes. The practice of neonatal resuscitation has evolved over time and continues to be shaped by emerging evidence as well as key opinions. We present the revised Neonatal Resuscitation Guidelines for Singapore 2021. The recommendations from the International Liaison Committee on Resuscitation Neonatal Task Force Consensus on Science and Treatment Recommendations (2020) and guidelines from the American Heart Association and European Resuscitation Council were compared with existing guidelines. The recommendations of the Neonatal Subgroup of the Singapore Resuscitation and First Aid Council were derived after the work group discussed and appraised the current available evidence and their applicability to local clinical practice.

What is the optimal initial dose of epinephrine during neonatal resuscitation in the delivery room?

The neonatal resuscitation program recommends a wide dose range of epinephrine for newborns who receive chest compressions (endotracheal tube [ET] dose of 0.05-0.1 mg/kg or intravenous [IV] dose of 0.01-0.03 mg/kg), which presents a challenge to neonatal care providers when attempting to determine the optimal initial dose. Dosing errors are common when preparing epinephrine for neonatal resuscitation. Based on animal data, we suggest preparing 0.1 mg/kg or 1 ml/kg of 1 mg/10 ml epinephrine in a 5 ml syringe for ET administration. For IV epinephrine, we suggest preparing an initial dose of 0.02 mg/kg or 0.2 ml/kg of 1 mg/10 ml epinephrine in a 1 ml syringe. A dose of 0.02 mg/kg enables use of a 1 ml syringe for a wide range of birth weights from 500 g to 5 kg. The use of a color-coded syringe may decrease errors in dose preparation.