Medically reviewed by Jeffrey S. Lander, MD Key Takeaways S1 and S2 are the normal heart sounds you hear when the heart ...

Lupus can cause inflammation of the pericardium, the lining around your heart. Depending on the severity of your symptoms, treatments range from over-the-counter pain relievers to surgery. Systemic ...

The pericardium is the layer that surrounds the heart. The pericardium has two layers that work to lubricate the heart, protect it, and prevent it from filling up with too much blood. When this layer ...

Blood flows through the heart and generates noises known as heart sounds. These noises occur due to heart valves opening and closing as the heart pumps blood. A doctor can gain valuable information by ...