instillation of an average of 89.0 +/- 14.9 ml of modified normosol into the pericardial space in dogs with normal hemoglobin levels produced mild tamponade with a modest decline in aortic pressure ( 119.5 +/- 14.3 to 96.8 +/- 12.1 mm hg ) and significant rises in left and right atrial and pericardial pressures to 7-8 mm hg .
C0225972
pericardial space
C0031050
pericardial