calculated left ventricular end-systolic blood pressure left ventricle end-systolic wall stress 2019-07-22T15:33:47Z CMO:0003201 LVES-WS Left ventricle end-systolic wall stress (LVES-WS)is calculated measurement of the force acting against the left ventricle wall at the endo of end of systole, the period of contraction of the heart when the blood is forced from the ventricles into the pulmonary artery (right ventricle) and the aorta (left ventricle). It is calculated by multiplying ventricular pressure by ventricular radius and dividing by 2 times the wall thickness. Commonly referred to as Law of Laplace (PMID: 2198115) VT:0010750 clinical_measurement_ontology sjwang