the cardiac event that completes ventricular filling is referred to as ventricular systole.
the cardiac event that completes ventricular filling is referred to as?
ventricular systole
during diastole, the ventricular pressure falls from the peak reached at the end of systole. when this pressure falls below the atrial pressure, atrio-ventricular valves open (mitral valve at left side and tricuspid valve at right side) and the blood passes from the atria into the ventricles. first, ventricles are filled by a pressure gradient but near the end, atria contract (atrial kick) and force more blood to pass into ventricles. atrial contraction is responsible for around 20% of the total filling blood volume. (in atrial fibrillation, this additional 20% filling volume is lost and the patient may experience systolic heart failure symptoms). complete left ventricular filling is essential to maintain maximum cardiac output. left ventricular filling is dependent upon ventricular relaxation and compliance, mitral valve area, atrio-ventricular gradient, atrial contraction and end-systolic volume. diastole has four phases: isovolumetric relaxation, rapid filling, diastasis and atrial contraction. all of these phases can be evaluated by doppler echocardiography.
heart failure with preserved ejection fraction
section::::associations.:rapid ventricular filling.









































bullet::::- mitral regurgitation - this is when one of the mitral valve leaflets that usually stop blood flowing from the left ventricle to the left atrium fails, allowing blood into the atria during systole. this means that the left atrium will be overfilled, leading to rapid ventricular filling when the mitral valve opens.









































bullet::::- elevated left atrial and left ventricular filling pressures, usually a result of a stiffened and dilated left ventricle









































bullet::::- ventricular septal defect - this is a hole in the wall between the two ventricles, which allows rapid filling from the other ventricle.
third heart sound