What does hydropericardium involve?

Hydropericardium refers specifically to the accumulation of fluid in the pericardial sac, which surrounds the heart. This condition can arise due to various underlying issues such as inflammation, infection, or other medical conditions that lead to increased fluid production or decreased absorption. When this fluid builds up, it can exert pressure on the heart, potentially compromising its ability to function properly. This is critical for understanding the implications of hydropericardium, as it directly relates to cardiovascular health and may require medical intervention to relieve the pressure and restore normal heart function.