percent change in developed blood pressure percent change in left ventricular developed pressure 2012-03-21T01:08:08Z A calculated measurement of the difference in developed pressure measured in the heart left ventricle between a treated state and a control state, expressed as a percentage. Developed pressure is systolic minus diastolic pressure when measured in an isolated organ or vessel under conditions where perfusion pressure or flow can be controlled. JSmith change in left ventricular developed pressure