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What is cardiology?

Cardiology deals with the investigation, diagnosis and medical (non-surgical) treatment of disorders of the heart and blood vessels. A specialist in this field is called a consultant cardiologist and the range of investigations available include electrocardiography, echocardiography and coronary angiography (or arteriography). 

Cardiologists may also treat coronary artery disease by using a procedure known as angioplasty which involves dilating a narrow blood vessel in the heart via a catheter inserted in the arm or groin.