Definition
Positive end-expiratory pressure will increase intrathoracic pressure, leading to:
- decreased venous return
- increased RV afterload
- decreased ventricular compliance
- decreased ventricular contractility
PEEP will decrease cardiac output in hypovolemic and normovolemic patients because of the drop in venous return.
If a patient has poor LVEF or CHF, PEEP will reduce LV transmural pressure, reducing afterload, which improves LV function. PAOP will also be reduced.
Subspecialty
Related Media
Keyword history
58%/2010
See Also:
Sources
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Grasso S., Mascia L., Ranieri M. V. Respiratory Care. Chapter 93. (Section: Positive End-Expiratory Pressure/Continuous Positive Airway Pressure, Subsection: PEEP/CPAP Effects on Hemodynamics) In: Miller Anesthesia. 7th edition. Saunders; 2009
