What causes enlargement of the left atrium?

Left atrium enlargement is generally caused by heart malformation, hypertension, rheumatic heart disease, etc.

1, heart development malformation

heart development malformation can lead to mitral valve insufficiency, regurgitation, manifested as left atrium enlargement.

2, hypertension high blood

pressure level will lead to increased left ventricular pressure, blood flow is difficult to pass, so that part of the blood retention in the left atrium, long-term can cause left atrium enlargement.

3, rheumatic heart disease

caused by rheumatic heart disease mitral valve stenosis, mitral valve insufficiency, etc., can lead to increased left atrial pressure, left atrium enlargement.