Interventional cardiology. Dilatation of pulmonary valve stenosis in boy 10 kg with combined stenosis and regurgitation.0:16
Diameter of valve is increased from 5 mm to 8 mm. Increase in cardiac output and decrease in right sided loading is seen.0:16
Interventional cardiology. Atrial septostomy in 45 years old man with pulmonary hypertension and right heart failure.0:16
With a 6 mm diameter device cardiac output as well as oxygen delivery increase despite lower arterial saturation.0:16
Extra-corporeal circulation. When increasing veno-arterial ECMO flow 0-4 L/min in a patient with left heart failure a progressive increase in LV loading is seen.0:16
Heart failure pathophysiology. When left ventricular contractility is decreased a progressive dilatation of the left ventricle is seen while left atrial pressure increases. With increse in left ventricular stiffness a further increase in left ventricular filling pressure is seen, although left ventricular size becomes smaller.0:16
Interface and heart failure pathophysiology.