Multiplying Flow and Pressure: Detecting Respiratory Phases in Intra-Arrest Ventilation

The authors aimed to develop an algorithm for detecting respiratory phases and their onsets during intra-arrest ventilation while chest compressions are ongoing. Their approach, which leverages the relationship between airflow and airway pressure, demonstrated perfect classification of respiratory phases in regular ventilation and high accuracy during intra-arrest scenarios. The results indicate that the algorithm can effectively differentiate between ventilation-induced airflow and that caused by chest compressions, providing a robust tool for automated analysis in emergency settings.