Pressure support ventilation

{{Short description|Medical intervention}} '''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 their own respiratory rate and tidal volume.<ref name="pmid21235833">{{cite journal|vauthors=Bonett S, Banner MJ, Euliano NR, Peters CW, Layon AJ, Gabrielli A | title=Pressure support ventilation advisory system provides valid recommendations for setting ventilator. | journal=Respir Care | year= 2011 | volume= 56 | issue= 3 | pages= 271–7 | pmid=21235833 | doi=10.4187/respcare.00656 | doi-access=free }}</ref>

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.<ref>MAQUET, "Modes of ventilation in SERVO-i, invasive and non-invasive", 2008 MAQUET Critical Care AB, Order No 66 14 692</ref><ref>MAQUET, "Modes of ventilation in SERVO-s, invasive and non-invasive", 2009 MAQUET Critical Care AB, Order No 66 61 131</ref>

== Oxygenation == Pressure support improves oxygenation,<ref name="pmid21263322">{{cite journal |vauthors=Spieth PM, Carvalho AR, Güldner A, etal | title = Pressure support improves oxygenation and lung protection compared to pressure-controlled ventilation and is further improved by random variation of pressure support | journal = Critical Care Medicine | volume = 39 | issue = 4 | pages = 746–55 |date=April 2011 | pmid = 21263322 | doi = 10.1097/CCM.0b013e318206bda6 }}</ref> ventilation and decreases work of breathing.

== Ventilation == Pressure support improves patient ventilation.<ref name="pmid16108409">{{cite journal |vauthors=Goodyear-Bruch C, Long LR, Simon P, Clancy RL, Pierce JD | title = Pressure-support ventilation and diaphragm shortening in the rat model | journal = AANA Journal | volume = 73 | issue = 4 | pages = 277–83 |date=August 2005 | pmid = 16108409 }}</ref>

== Work of breathing == Pressure support decreases overall work of breathing when used in tandem with an intermittent mechanical ventilation mode.<ref name="pmid10838991">{{cite journal |vauthors=Pierce JD, Wiggins SA, Plaskon C, Glass C | title = Pressure support ventilation: reducing the work of breathing during weaning | journal = Dimensions of Critical Care Nursing | volume = 12 | issue = 6 | pages = 282–90; quiz 294 | year = 1993 | pmid = 10838991 | doi = 10.1097/00003465-199311000-00001}}</ref>

== References == <references/>

Category:Mechanical ventilation