Paediatric out-of-hospital cardiac arrest occurring before and after emergency medical service arrival: a retrospective study.
AIM To examine the association between witness status and the incidence, characteristics, and survival outcomes of paediatric out-of-hospital cardiac arrest (OHCA) attended by emergency medical services (EMS). METHODS We conducted a retrospective cohort study of paediatric (<18 years) OHCA cases attended by EMS betwe...