Pericardial effusion refers to the accumulation of excess fluid in the pericardial sac, the double-layered membrane surrounding the heart. This condition can result from various causes, such as inflammation, infection, trauma, or underlying medical conditions. As fluid builds up, it may increase pressure on the heart, potentially causing symptoms ranging from mild discomfort to life-threatening complications, emphasizing the importance of prompt diagnosis and appropriate management. Join us to learn more about the topic.