3 results about "Afterload" patented technology

Afterload is the pressure the heart must work against to eject blood during systole (ventricular contraction). Afterload is proportional to the average arterial pressure. As aortic/pulmonary pressure increases, the afterload on the left/right ventricle increase respectively. Afterload changes in order to adapt to the continually changing demands on an animal's cardiovascular system. Afterload is proportional to mean systolic blood pressure and is measured in millimeters of mercury (mm Hg).