loppudiastolinen

Loppudiastolinen refers to the final phase of diastole, the relaxation period of the heart muscle between beats. This specific stage is known as atrial contraction or atrial kick. During this time, the atria, the upper chambers of the heart, contract and push the remaining blood into the ventricles, the lower chambers. This atrial contraction plays a significant role in optimizing ventricular filling, particularly during times of increased heart rate or when the heart's filling time is reduced.

The effectiveness of the atrial kick can be influenced by several factors. For instance, in certain cardiac conditions, such as atrial fibrillation where the atria quiver irregularly instead of contracting effectively, this contribution to ventricular filling is lost. In these cases, the ventricles may not fill as completely, potentially impacting the amount of blood pumped out with each beat. Understanding loppudiastolinen is crucial in analyzing overall cardiac function and diagnosing certain heart ailments. It represents a critical, though often overlooked, component of the cardiac cycle, contributing to the heart's ability to efficiently circulate blood throughout the body.