WordNet

the force applied to a unit area of surface; measured in pascals (SI unit) or in dynes (cgs unit); "the compressed gas exerts an increased pressure" (同)pressure level, force per unit area
an oppressive condition of physical or mental or social or economic distress
the somatic sensation that results from applying force to an area of skin; "the sensitivity of his skin to pressure and temperature was normal" (同)pressure_sensation
a force that compels; "the public brought pressure to bear on the government"
of or relating to a ventricle (of the heart or brain)

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〈U〉『押すこと』,『押しつけること』,圧搾,圧縮;〈C〉〈U〉『圧力』,圧力の強さ / 〈U〉『圧迫』,『強制』 / 〈U〉(不快な)圧迫感 / 〈C〉〈U〉(精神的な)重荷,苦脳;(時間・金銭的)切迫 / 〈U〉多忙,あわただしさ / 《おもに米》…‘に'圧力をかける,強制する(《英》pressurise)

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/07/24 08:04:34」(JST)

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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
Right ventricular pressure	diastolic	3–8
Pulmonary artery pressure	systolic	15–30
Pulmonary artery pressure	diastolic	4–12
Pulmonary vein/ Pulmonary capillary wedge pressure		2–15
Left ventricular pressure	systolic	100–140
Left ventricular pressure	diastolic	3-12

References

^ Ventricular pressure at the US National Library of Medicine Medical Subject Headings (MeSH)
^ 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.
^ 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.
^ "Aortic Stenosis: Overview - eMedicine Emergency Medicine". Retrieved 2009-02-28.
^ 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.
^ 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.

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