Ep. 150 Volume 29 Issue No. 1: Single Dose Epinephrine in Cardiac Arrest

Out-of-hospital cardiac arrest management traditionally relies on multi-dose epinephrine protocols, yet evidence suggests single-dose strategies may offer superior patient-centered outcomes. Researchers Tyler George and Nick Ashburn evaluated this shift, finding that a single dose of epinephrine significantly improves survival to hospital discharge for patients who receive bystander CPR. While return of spontaneous circulation rates decreased in groups without bystander intervention, survival outcomes remained unchanged, suggesting that prioritizing survival and favorable neurologic recovery over immediate circulation return is more clinically meaningful. The study emphasizes that high-quality chest compressions and early defibrillation remain the primary drivers of success in cardiac arrest resuscitation. Future efforts should focus on personalized resuscitation strategies that account for specific patient factors, such as bystander intervention and initial rhythm type, rather than adhering to rigid, one-size-fits-all epinephrine administration schedules.