Can a simple device help paramedics deliver better CPR?

This study tested whether giving paramedics real-time feedback about their CPR ventilation technique improves the quality of care during out-of-hospital cardiac arrests. Researchers compared ventilation quality before and after paramedics used a monitoring device that shows if they're breathing too fast or too slow into patients. The goal was to understand if this feedback helps paramedics follow medical guidelines more closely during these critical emergencies.