We compared PEA with Asystole in cases without bystander witness or bystander CPR.
Neurological outcome was more favorable in PEA than in Asystole.
Neurologically favorable survival rate was ≥ 1% in PEA even for patients aged ≥ 85 years.
Neurologically favorable survival rate was < 1% in Asystole among all age groups.
PEA and Asystole should be distinguished from the perspective of medical futility.