Figure.3 Basis of hemodynamic changes after constriction
The decreasing pressure is restricted to be transmitted to the pericardial cavity through the intrathoracic when inhaling, and with a decrease of intrathoracic pressure. The constrictive pericardium makes the diastolic function impaired, and lead to a difference of pressure between left atrial and pulmonary vein, which causes a decreasing flow into the left ventricular. So we can see the shift of ventricular septum during the breathing. LA= left atrium RA= right atrium, LV= left ventricle, RV= right ventricle, PV= pulmonary vein, P= pressure.