<P> Pressure support ventilation (PSV), also known as pressure support, is a spontaneous mode of ventilation . The patient initiates every breath and the ventilator delivers support with the preset pressure value . With support from the ventilator, the patient also regulates his own respiratory rate and tidal volume . </P> <P> In Pressure Support, the set inspiratory pressure support level is kept constant and there is a decelerating flow . The patient triggers all breaths . If there is a change in the mechanical properties of the lung / thorax and patient effort, the delivered tidal volume will be affected . The user must then regulate the pressure support level to obtain desired ventilation . </P>

What is pressure support on a mechanical ventilator
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