What does peak pressure measure during the respiratory cycle?

Peak pressure during the respiratory cycle specifically refers to the maximum pressure achieved in the airways during the inspiratory phase of mechanical ventilation. It is an important measurement as it helps assess the performance of the ventilator and the mechanics of the patient's lungs. When a patient inhales, the ventilator delivers air, and the peak pressure indicates how much pressure is required to deliver that air into the lungs.

This measurement can be critical for understanding various respiratory conditions. For example, increased peak pressures might suggest the presence of airway resistance or compliance issues, such as those found in conditions like asthma or acute respiratory distress syndrome (ARDS). Monitoring peak pressure is essential for managing ventilator settings and ensuring patient safety during mechanical ventilation.