The most common causes of cardiomegaly are congenital (patients are born with the condition based on a genetic inheritance), high blood pressure (which can enlarge the left ventricle causing the heart muscle to weaken over time), and coronary artery disease. The most common causes of an enlarged heart are high blood pressure and coronary artery disease, but any condition that makes your heart work harder than normal can cause cardiomegaly. An enlarged heart (cardiomegaly) can be caused by damage to the heart muscle or any condition that makes the heart pump harder than usual, including pregnancy.
Sometimes the heart gets larger and becomes weak for unknown reasons. Coronary artery disease, the most common cause of cardiomegaly, happens to many people. It affects an estimated 18 million people aged 20 and older in the United States. Other risk factors for the development of cardiomegaly include heart valve disease, congenital heart conditions, rare diseases (e.g., amyloidosis), and having a family history of cardiomegaly.
cardiomegaly causes, An enlarged heart, or cardiomegaly, can result from a range of conditions, including high blood pressure, inherited heart diseases, or problems with the heart's valves. Cardiomegaly describes an enlarged heart. It is most commonly caused by medical conditions that force the heart to work harder than usual, such as hypertension (high blood pressure), coronary artery disease, and obesity. Cardiomegaly is an enlarged heart, and it can be a sign of heart failure or another life-threatening condition.