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

/pre·load/ (pre´lōd) the mechanical state of the heart at the end of diastole, the magnitude of the maximal (end-diastolic) ventricular volume or the end-diastolic pressure stretching the ventricles.

preload

[prē′lōd]
Etymology: L, prae + AS, lad
the stretch of ventricular muscle fibers at end diastole. It is reflected by the ventricular pressure and volume at that part of the cardiac cycle. Cardiac output increases with preload. Also called preload filling pressure.

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.

preload,

n the tensile force in the neck of a tightened screw that locks the screw in place without exceeding the screw material's elastic limit.

preload

see cardiac preload.
References in periodicals archive ?
To account for preload variation from assembly influences, the transmitted friction forces in the interface are subtracted from the transverse force in each case.
Jackson et al4 compared the protective effect of 1000 ml preload with 200 ml preload of crystalloid solution, administered during and 10 min before spinal anaesthesia.
Preload has long been considered an estimation of volemia, but although volemia is one of the determinants of preload, these are two different terms.
The Nokia preload represents Poynt Corporation's second distribution agreement with a handset manufacturer in India.
This review outlines these principles, considering first preload, then fluid responsiveness.
The pressure is applied in increments of 500 psi because application of any pressure results in a loss of preload of the bolts.
Spring stiffness seemed less important than the preload level.
Now, universities can preload textbooks from more than a dozen prominent publishers onto IBM ThinkPad notebooks and ThinkCentre desktops.
In fact, placing the preload was the biggest challenge for Terasen's Project Manager Vincent Yung.
1% bupivacaine and 2 [mu]g/mL fentanyl) or no preload.
Dynamic Preload Control with fluid dampening optimizes bearing preload for ideal operational characteristics and suppresses harmful harmonic vibrations.