Answer:
Cardiac tamponade is a medical condition that occurs when there is excessive fluid accumulation in the space between the heart and the sac that surrounds it (pericardium). As the fluid builds up, it puts pressure on the heart and prevents it from functioning properly. The pressure on the heart can also affect the amount of blood that is able to flow to the rest of the body, which can lead to organ damage and, in severe cases, can be life-threatening. Symptoms of cardiac tamponade can include shortness of breath, chest pain, low blood pressure, and a rapid heart rate. Treatment usually involves removing the fluid from the pericardial sac through a procedure called pericardiocentesis, which involves inserting a needle or catheter into the sac to drain the fluid.