Cardiologists are doctors who diagnose, assess and treat patients with diseases and defects of the heart and blood vessels (the cardiovascular system). This page provides useful information on the nature of the work, the common procedures/interventions, sub-specialties and other roles that may interest you.
A cardiologist is a doctor who specializes in treating diseases of the cardiovascular system — mainly the heart and blood vessels. In order to become a cardiologist, a physician must attend four years of medical school and an additional six to eight years of internal medicine and specialized cardiology training.
While medical science itself is a highly competitive and challenging discipline, cardiology is, with the possible exception of neurology, the most difficult sub-discipline that comes to mind. Hence, even among doctors, only the most competitive and capable go on to become cardiologists.
The cardiologist’s role is to evaluate and treat medically (without surgery) heart problems. Cardiologists also perform procedures, such as heart catheterizations, angioplasty (inserting balloons in arteries to clear them), and placing stents to keep arteries open.