What is pericardial effusion?
The pericardial sac is the sac that contains the heart. Normally there is a small amount of fluid between the heart and the lining of the sac. Excess fluid in the sac is known as pericardial effusion and can lead to problems with heart function. The liver and kidneys can also be affected by this condition. Congestive heart failure is one of the possible causes of pericardial effusion.
