RAE can be caused by various conditions that increase the pressure load on the right atrium. Some common causes include:
Pulmonary Hypertension: Increased pressure in the pulmonary arteries forces the right atrium to work harder to pump blood into the lungs. Tricuspid Valve Disease: Conditions like tricuspid stenosis or regurgitation can lead to increased volume and pressure in the right atrium. Chronic Lung Disease: Diseases such as chronic obstructive pulmonary disease (COPD) can lead to increased resistance in the pulmonary circulation, causing RAE.
