The pathogenesis of septic myocardial depression is complicated.
Mitochondrial dysfunction has been suggested to be one of the main reasons
for the reduced cardiac function.
To evaluate the relationships between the changes in stroke volume index (SVI),
measured in both the aorta and the pulmonary artery, and the changes in intrathoracic blood volume index (ITBVI), as well as the relationship between changes in aortic SVI and changes in the pulmonary artery wedge pressure (PAWP).