Possible causes of an enlarged heart include conditions that cause the heart to pump harder than normal, such as disease of the heart valve or muscle, and high blood pressure, according to Mayo Clinic. In some cases, the... More »

Causes of an enlarged heart are usually high blood pressure or coronary artery disease, according to WebMD. Other causes include a viral infection of the heart, alcohol or cocaine abuse, genetics, and an abnormal heart v... More »

www.reference.com Health Conditions & Diseases Cardiac Health

More often than not, an enlarged heart causes no symptoms and may pose no issues, according to WebMD. However, an enlarged heart may be increasingly ineffective in pumping blood, resulting in varying symptoms similar to ... More »

www.reference.com Health Conditions & Diseases Cardiac Health

Mayo Clinic states that atrial fibrillation can be caused by high blood pressure, myocardial infarctions, abnormal heart valves, congenital heart defects, coronary artery disease or other conditions that affect the heart... More »

www.reference.com Health Conditions & Diseases Cardiac Health

An enlarged heart is dangerous because it can be indicative of congenital heart problems, arrhythmia, high blood pressure and diseases of the heart valve, according to Mayo Clinic. Kidney disease and HIV infections can a... More »

Thickening of the heart wall, which is called cardiomyopathy, has many causes, including genetic factors, long-term high blood pressure, damage of the heart tissue, heart valve problems and metabolic disorders, such as d... More »

Causes of irregular heartbeat, called arrhythmia, include high blood pressure, overactive or underactive thyroid gland, excessive alcohol consumption and changes in the structure of the heart, according to Mayo Clinic. O... More »