Ventricular pressure

Partial Wiggers diagram.

Red = aortic pressure
Blue = left ventricular pressure
Yellow = left atrial pressure.

Ventricular pressure is a measure of blood pressure within the ventricles of the heart.[1]

Left ventricular pressure

During most of the cardiac cycle, ventricular pressure is less than the pressure in the aorta, but during systole, the ventricular pressure rapidly increases, and the two pressures become equal to each other (represented by the junction of the blue and red lines on the diagram on this page), the aortic valve opens, and blood is pumped to the body.

Elevated left ventricular end-diastolic pressure has been described as a risk factor in cardiac surgery.[2]

Noninvasive approximations have been described.[3]

An elevated pressure difference between the aortic pressure and the left ventricular pressure may be indicative of Aortic stenosis.[4]

Right ventricular pressure

Right ventricular pressure demonstrates a different pressure-volume loop than left ventricular pressure.[5]

Site Normal
pressure range
(in mmHg)[6]
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

See also

References

  1. ↑ Ventricular pressure at the US National Library of Medicine Medical Subject Headings (MeSH)
  2. ↑ Salem R, Denault AY, Couture P, et al. (September 2006). "Left ventricular end-diastolic pressure is a predictor of mortality in cardiac surgery independently of left ventricular ejection fraction". Br J Anaesth 97 (3): 292–7. doi:10.1093/bja/ael140. PMID 16835254.
  3. ↑ Brenner JI, Baker KR, Berman MA (October 1980). "Prediction of left ventricular pressure in infants with aortic stenosis". Br Heart J 44 (4): 406–10. doi:10.1136/hrt.44.4.406. PMC 482419. PMID 7426202.
  4. ↑ "Aortic Stenosis: Overview - eMedicine Emergency Medicine". Retrieved 2009-02-28.
  5. ↑ Redington AN, Gray HH, Hodson ME, Rigby ML, Oldershaw PJ (January 1988). "Characterisation of the normal right ventricular pressure-volume relation by biplane angiography and simultaneous micromanometer pressure measurements". Br Heart J 59 (1): 23–30. doi:10.1136/hrt.59.1.23. PMC 1277068. PMID 3342146.
  6. ↑ 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.
This article is issued from Wikipedia - version of the Tuesday, November 24, 2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.