The cardiac cycle consists of two phases: diastole and systole. The first phase is diastole, in which the ventricles fill with blood. It begins when the aortic or pulmonary valve closes and ends ...

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There is an increase in afterload, potentially raising myocardial oxygen demand Late deflation Balloon is still inflated at start of next systole, causing an increase in ventricular afterload.

During electrical systole, cardiomyocytes are refractory right after the onset of depolarization, while during repolarization in physiological conditions, they seem to be protected from systolic ...

To do this, the aortic valve must maintain durability and strength in response to changes in mechanical stresses during the cardiac cycle; ensuring that the valve orifice is open during ventricular ...

Results: The mitral annular peak mean velocity and amplitude in systole were lower in the patients with diastolic heart failure (mean (SEM), 4.8 (0.2) cm/s) than in the age matched normal controls ...

Induction of foetal asystole refers to the medical procedure that intentionally causes the cessation of the foetal heart (cardioplegia). In the context of abortions at advanced gestations, ...

4 Even in the normal subject, several mechanisms are involved: Decline of the myocardial active state following systole. Passive effects of connective tissue. Compression or extension of connective ...

A single heartbeat is divided into two basic phases, the systole (systolic) and the diastole (diastolic). During the systole phase, both ventricles contract, or squeeze. The left ventricle pushes ...

This study presents compelling evidence that the denitrosylase SCoR2 regulates cardioprotective metabolic reprogramming in the heart following ischemia/reperfusion injury. The findings are supported ...