Cardiology deals with the heart and vascular system. Cardiologists are the one who specializes in cardiology and treat patients who have suffered heart attacks or in other words, cardiac arrests & other conditions. In addition, they also treat the patients who were born with cardiac issues and try to prevent heart disease. Cardiology is also happened to be one of the most competitive medical specialities. For an individual to qualify as a cardiac surgeon or a cardiologist, surgeons and doctors must complete a cardiac surgery training programme that normally lasts around 5 years which is followed by their initial medical training. Branches of cardiology: Non-invasive cardiology - Detecting and diagnosing cardiac problems using latest techniques. Interventional cardiology - Treating heart problems by inserting tubes or catheters into the body of a patient. However, cardiologists will normally be trained in both interventional and non-invasive techniques and deal with patients who have been fitted with pacemakers. Treatments: Ablation, Angioplasty & Stenting, Cardiac Rehabilitation. Coronary Artery Bypass Grafting, Heart Transplant, Heart Valve Repair, Heart Valve Replacement, Implantable Defibrillator, Orthopedics Atherectomy.