preload


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Related to preload: afterload

preload

 [pre´lōd]
the volume of blood in the ventricle at the end of diastole.

pre·load

(prē'lōd),
1. The load to which a muscle is subjected before shortening.
2. Synonym(s): ventricular preload

preload

Cardiology The amount of hemodynamic pressure upstream from the heart, which is ↑ in heart failure due to mitral or aortic valve regurgitation. Cf Afterload.

pre·load

(prē'lōd)
1. The load to which a muscle is subjected before shortening.
2. Synonym(s): ventricular preload.

pre·load

(prē'lōd)
1. The load to which a muscle is subjected before shortening.
2. Synonym(s): ventricular preload.
References in periodicals archive ?
Shock source [E.sub.M,S|high preload] (10 kN) Preload release 57.51% Piston impact 15.01% Piston shear 13.05% Propellant combustion 14.43% Total 100% Shock source [E.sub.M,S|low preload] (2 kN) Preload release 13.15% Piston impact 28.14% Piston shear 29.60% Propellant combustion 29.11% Total 100%
The effects of crystalloid and colloid preload on cardiac output in the parturient undergoing planned cesarean delivery under spinal anesthesia: a randomized trial.
Continuous COPAC can provide continuous analysis of both CO and mixed venous oxygen saturations, but give pressure measures as surrogates of preload. Pulmonary artery occlusion pressure (PAOP) is affected by LV compliance (1) and is not a reliable measure of preload in patients following cardiac surgery (2).
In September 2013, the fluid-loading regimen for spinal anaesthesia for CD was changed from a colloid preload of 500 ml hetastarch (6% hydroxyethyl starch in 0.9% sodium chloride; B.
Conclusion: Prophylactic phenylephrine infusion with crystalloid preload was found associated with reduced number of rescue boluses and rescue phenylephrine dose and lesser total intraoperative fluid administration, when compared to preload with rescue boluses.
With this an idea of the prevailing preload and additional axial forces could be monitored.
[12] focused on the self-loosening of bolts in curvic coupling and noted that the slip states at contact surfaces highly depend on the values of the preload of the bolt and the torque loads on the disc.
The C04TB1 face collar increases stiffness, prevents the shaft or bushings from moving side-to-side, and preloads opposing thin film pressure, maintaining the perfect gap and tolerances.
Because the carbon on the back is different from that on the belly, you get a much higher preload static-tipped limb that shoots close to 200 fps with a 10 grains-per-pound tip.
Besides, considering the effects of the preload and rigidity of linear guide modules, the vibration characteristics of the stage were researched using the FE method [6-9].
In anchored forging press the anchor preload was set as 1.4 times of the nominal force.