Clinical Study of the Effect of Chronic Right Ventricular Pressure Overloading due to Chronic Pulmonary Disorders on Mean Pulmonary Artery Wedge Pressure and Arterial and Mixed Venous Oxygen Content Difference

To investigate the effect of chronic pressure overloading to the right heart due to chronic pulmonary disorders on the left cardiac function, right cardiac catheterization was performed using Swan-Ganz flow-directed 7F catheter under fluoroscopic guidance in 90 adults. Mean pulmonary artery wedge pressure (<WP>^^^-), mean pulmonary artery pressure (<P_PA>^^^-) and pxygen content content both in arterial and mixed venous blood (C_aO_2 and C_v^^-O_2, respectively) were measured. No significant difference in <WP>^^^- and in C_(a_^v^^-)O_2 between pulmonary hypertension group and nonpulmonary hypertension group was observed.…