Fluid around the heart, known as pericardial effusion, is a significant health problem with many possible causes. The symptoms and treatment will vary depending on the cause.

Pericarditis is inflammation of the sac around the heart, called the pericardium. If pericarditis becomes chronic, it can lead to pericardial effusion. This is when the pericardium fills with fluid.

Researchers have discovered a previously unidentified cell population in the pericardial fluid found inside the sac around the heart. The discovery could lead to new treatments for patients with ...

Investigators at Children's Hospital Los Angeles and the University of Southern California have demonstrated the feasibility of implanting a micropacemaker system in the pericardial sac ...