diastole


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Related to diastole: diastolic pressure, atrial diastole

diastole

the dilatation of the chambers of the heart that follows each contraction, during which they refill with blood

diastole

[dī′as·tə·lē]
(physiology)
The rhythmic relaxation and dilation of a heart chamber, especially a ventricle.
References in periodicals archive ?
As the result of the return of the ribs and the lower part of the sternum into a deeper and flatter position, it was necessary for the heart, which had adhered to the diaphragm, to undergo a movement during diastole, contrary to the conditions prevailing under normal conditions.
Initial horizontal (also referred to as the "4 chamber" despite the presence of five chambers including the aorta) view of the heart in diastole via echocardiography in the African grey parrot described in Figure 1.
Ductus venosus wave form assessment methods Indices Method Consecutive cardiac event Pulsatility index Reflects deterioration in forward for vein cardiac function Systolic velocity Semi quantitative Cannot identify which component of - End diastolic forward cardiac function was velocity deteriorated (preload, contractility/compliance or afterload) Time average maximum velocity A-wave assessment Visual Impaired atrial contraction Velocity ratios S/v Forward flow into atria during end-systole v/D Ventricular relaxation D/a Ratio Passive and active diastolic filling S/D Ventricular systole and early diastolic filling S/a Ventricular systole and late diastole (active filling) v/a End-systole and late diastole (active filing)
(16) designed a new methodology based on fractal geometry that includes the creation of the concept of degrees of similarity, which allows the comparison of the fractal dimensions of the ventricular contours in systole, diastole and totality from images with a diagnosis of cardiac ventricular normality and severe abnormality.
Caption: Figure 3: Cardiac MRI postcarnitine replacement in (a) diastole and (b) systole.
Phillips & Harkin (2003) diagnosed hypothyroidism and cardiac failure in two dogs, whose echocardiographic findings were similar to those documented in subjects diagnosed with dilated cardiomyopathy, including diminished fractional shortening and augmented left ventricular internal diameters in systole and diastole. Nevertheless, because no overt cause-and-effect relationship could be established, they also speculated that both diseases could be distinct and just coexist.
However, at diastole, the IOP drops by 1.5mmHg, while the CSF only drops by 0.5mmHg, creating an upward pressure gradient; this results in a temporary stasis of blood within the venous system at the lamina cribrosa (seen as venous engorgement in SVP).
Stiffness of the heart muscles, preventing them from relaxing adequately during the resting phase (diastole) of the heart cycle
Further interrogation confirmed blood flow between the LV and the RA, consistent with an acquired Gerbode-type ventricular septal defect (VSD), with flow present in both systole and diastole. No 2-D or color flow doppler (CFD) evidence of a communication between the aortic root and the RA was seen (Figs.
Diastole represents the period of time when the ventricles are relaxed (not contracting).
Las mediciones del indice de pulsatilidad, indice de resistencia y relacion de flujo sistole / diastole de las arterias uterinas mostraron valores significativamente mas altos en el grupo de las preeclampticas (p < 0,05).