Figure 8.

Systolic (P_sys), mean (P_mean), and diastolic pressure (P_dia) in the proximal aorta and end-diastolic pressure (LVEDP) in the left ventricle of animal #2’s graft in the 72 h following transplantation, measured by telemetric pressure probe. Both recipient and donor hearts had normal functions. After extubating and moving the animal from supine into upright position, LVEDP changed from negative to positive values, indicating a hydrostatic effect responsible for perioperative measurement errors.