Membership: The old 15-member Veterans Committee has been replaced by a group comprised of the living members of the Baseball Hall of Fame (60), the living recipients of the J.G. Taylor Spink Award (12), the living recipients of the Ford C. Frick Award (13) and the current Veterans Committee members whose terms have not yet expired (3).
High blood pressure can cause the left ventricle to enlarge, causing the heart muscle eventually to weaken. High blood pressure may also enlarge the upper chambers of your heart (atria). 1  Heart valve disease.
Valvular Heart Disease. Disorders of certain heart valves can also lead to left atrial enlargement. The mitral valve separates the left atrium from the left ventricle. If the mitral valve becomes narrow -- a condition known as mitral stenosis -- blood accumulates in the left atrium and causes enlargement.