Cardiac tamponade occurs when a pericardial effusion exerts a significant amount ... velocities on echocardiography indicate tamponade physiology, as well. Right heart catheterization will show ...

Prolonged QTc interval, pericardial effusion and diastolic dysfunction are associated with higher mortality.

This hemodynamic effect of a large pericardial effusion causing cardiac tamponade is referred to as pulsus paradoxus. To understand the physiologic mechanism of pulsus paradoxus, the normal ...