elastance


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elastance

 [e-las´tans]
the quality of recoiling on removal of pressure without disruption, or an expression of the measure of the ability to do so in terms of unit of volume change per unit of pressure change; it is the reciprocal of compliance.

e·las·tance

(ē-las'tănts),
A measure of the tendency of a structure to return to its original form after removal of a deforming force. In medicine and physiology, usually a measure of the tendency of a hollow viscus (for example, lung, urinary bladder, gallbladder) to recoil toward its original dimensions on removal of a distending or compressing force, the recoil pressure resulting from a unit distention or compression of the viscus; the reciprocal of compliance. The relationship between elasticity and elastance is of the same nature as that between the specific inductive capacity of an insulator material and the capacitance of a particular condenser made from that material.

elastance

/elas·tance/ (e-las´tans) the quality of recoiling without disruption on removal of pressure, or an expression of the measure of the ability to do so in terms of unit of volume change per unit of pressure change. Symbol E. It is the reciprocal of compliance.

elastance

[ilas′təns]
Etymology: Gk, elaunein, to drive
1 the quality of recoiling or returning to an original form after the removal of pressure.
2 the degree to which an air- or fluid-filled organ, such as a lung, bladder, or blood vessel, can return to its original dimensions when a distending or compressing force is removed.
3 the measurement of the unit volume of change in such an organ per unit of decreased pressure change.
4 the reciprocal of compliance.

e·las·tance

(ĕ-las'tăns)
1. A measure of the stiffness of a chamber expressed as a change in pressure per unit change in volume; the reciprocal of compliance.
2. internal medicine, physiology Usually a measure of the tendency of a hollow viscus (e.g., lung, urinary bladder, gallbladder) to recoil toward its original dimensions on removal of a distending or compressing force.

elastance

the measure of the tendency of a hollow viscus to recoil toward its original dimensions upon removal of a distending or compressive force; reciprocal of compliance

elastance

the quality of recoiling on removal of pressure without disruption, or an expression of the measure of the ability to do so in terms of unit of volume change per unit of pressure change; it is the reciprocal of compliance.
References in periodicals archive ?
Static elastance of the respiratory system (Est[sub]RS) was calculated with the following formula: (Pplat[sub]RS – PEEP[sub]tot, RS)/VT.
Effects of chest wall elastance on respiratory elastance and oxygenation
The patients were divided into two groups according to the former study:[sup][8] a high chest wall elastance group (H group) whose chest wall/respiratory system elastance was higher than 30% and a low chest wall elastance group (L group) whose chest wall/respiratory system elastance was lower than 30%.
The results suggested that for the patients with high chest wall elastance did not act on the P[sub]aw stress index, and the P[sub]aw stress index and P[sub]L stress index were consistent in evaluating lung mechanics.
In males, maximum tissue elastance to MCh was significantly higher in influenza-infected mice (p = 0.
We observed increased tissue damping and tissue elastance at baseline (lung mechanics measurements taken without MCh) with the maximum dose of MCh, as well as an increased number of mucus-producing cells in the airways, of influenza-exposed mice compared with control mice.
Relationship between heterogeneous changes in airway morphometry and lung resistance and elastance.
the height of the PV curves) (C), baseline values for airway resistance (Rn) (D), the coefficient of lung tissue damping, G (E), and the coefficient of lung tissue elastance, H (F).
Shown are methacholine induced changes in Rn (A-D), which largely reflects the conducting airways, and the coefficient of lung tissue elastance (H) (E-H), which reflects changes in the small airways and pulmonary parenchyma, including airway closure.
There was no effect of arsenic on tissue damping or tissue elastance (p = 0.
There was evidence to suggest that both tissue damping and tissue elastance were lower in arsenic-exposed mice compared with controls (p = 0.
aw]) and coefficients of tissue damping (G) and elastance (H).