What is the primary aim of Pressure Support Ventilation (PSV)?

The primary aim of Pressure Support Ventilation (PSV) is to decrease the work of breathing with preset positive pressure. In this mode of ventilation, the ventilator assists the patient’s spontaneous breaths by providing a preset level of pressure support during inhalation. This positive pressure reduces the amount of effort required by the patient to initiate a breath, making it easier for them to breathe effectively.

By supporting each breath with a set inspiratory pressure, PSV enhances patient comfort and can improve their ability to ventilate while still allowing for spontaneous respiratory effort. This approach is particularly beneficial for patients who are capable of initiating their own breaths but may struggle with the workload associated with inadequate mechanical support. Thus, the focus is on facilitating the patient's own breathing pattern rather than enforcing mandatory ventilation or maintaining a specific tidal volume.