Left atrial appendage occlusion is a generally safe and effective procedure to lower the risk of stroke in people with atrial fibrillation. It closes or blocks off the left atrial appendage of the ...

Structural or functional abnormalities within the heart's left atrium, with or without symptoms, may increase a person's risk of developing dementia later in life by 35%, according to new research ...

Your heart has four chambers, two on the right and two on the left. Blood flows into the right side of the heart, then to the lungs where it receives oxygen. From the lungs it flows into the left ...