- Pulmonary wedge pressure
The pulmonary capillary wedge pressure or PCWP (also called the pulmonary wedge pressure or PWP, or pulmonary artery occlusion pressure or PAOP) is the pressure measured by wedging a pulmonary catheter with an inflated balloon into a small pulmonary arterial branch.
Physiologically, distinctions can be drawn among pulmonary venous pressure, pulmonary artery pressure, pulmonary capillary wedge pressure, and left atrial pressure, but not all of these can be measured in a clinical context.
Noninvasive estimation techniques have been proposed.
Central venous pressure 3–8 Right ventricular pressure systolic 15–30 diastolic 3–8 Pulmonary artery pressure systolic 15–30 diastolic 4–12 Pulmonary vein/
Pulmonary capillary wedge pressure
2–15 Left ventricular pressure systolic 100–140 diastolic 3-12
For example, it is considered the gold standard for determining the cause of acute pulmonary edema; this is likely to be present at a PCWP of >20mmHg. It has also been used to diagnose severity of left ventricular failure and mitral stenosis
Calculating PCWP is also important in diagnosis of acute respiratory distress syndrome (ARDS).
Physiological pressure: 6–12 mm Hg.
- ^ Peacock, Andrew J.; Lewis J. Rubin (2004). Pulmonary Circulation: Diseases and their treatment. Arnold Publisher. ISBN 0-340-80782-2.
- ^ Chaliki HP, Hurrell DG, Nishimura RA, Reinke RA, Appleton CP (July 2002). "Pulmonary venous pressure: relationship to pulmonary artery, pulmonary wedge, and left atrial pressure in normal, lightly sedated dogs". Catheter Cardiovasc Interv 56 (3): 432–8. doi:10.1002/ccd.10203. PMID 12112902.
- ^ Uzun M, Erinc K, Kirilmaz A, et al. (November 2004). "A novel method to estimate pulmonary artery wedge pressure using the downslope of the Doppler mitral regurgitant velocity profile". Echocardiography 21 (8): 673–9. doi:10.1111/j.0742-2822.2004.03174.x. PMID 15546367. http://www3.interscience.wiley.com/resolve/openurl?genre=article&sid=nlm:pubmed&issn=0742-2822&date=2004&volume=21&issue=8&spage=673.
- ^ Table 30-1 in: Trudie A Goers; Washington University School of Medicine Department of Surgery; Klingensmith, Mary E; Li Ern Chen; Sean C Glasgow (2008). The Washington manual of surgery. Philadelphia: Wolters Kluwer Health/Lippincott Williams & Wilkins. ISBN 0-7817-7447-0.
- ^ "Gun Shot Wound Case Study Discussion". http://classes.kumc.edu/cahe/respcared/ptcs/ptcsdis.html. Retrieved 2009-03-02.
- ^ "CV Physiology". http://www.cvphysiology.com/Heart%20Failure/HF008.htm.
- ^ "Pulmonary Capillary Wedge Pressure". http://www.healthsystem.virginia.edu/internet/anesthesiology-elective/cardiac/pacphys.cfm.
- -1113980888 at GPnotebook
- Overview at cvphysiology.com
- Description at virginia.edu
- MeSH Pulmonary+wedge+pressure
Cardiovascular system, physiology: cardiovascular physiology HeartVolumesFractional shortening = (End-diastolic dimension – End-systolic dimension) / End-diastolic dimensionInteraction diagramsChamber pressureOther Vascular system/
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Look at other dictionaries:
pulmonary wedge pressure — n WEDGE PRESSURE … Medical dictionary
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wedge pressure — n intravascular pressure that is measured by means of a catheter wedged into the pulmonary artery so as to block the flow of blood and that is equivalent to the pressure in the left atrium called also pulmonary capillary wedge pressure, pulmonary … Medical dictionary
pulmonary capillary wedge pressure — n WEDGE PRESSURE abbr. PCWP … Medical dictionary
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pulmonary capillary wedge pressure — pressure of blood in the left atrium of the heart, which indicates the adequacy of the pulmonary circulation. It is measured using a catheter wedged in the most distal segment of the pulmonary artery. See also Swan Ganz catheter … Medical dictionary
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