A coronary heart disease is a leading cause of heart disease in India. And there have been many research studies that have been done to come up with simple yet effective treatment approaches to treat heart blockages. One such treatment option is chelation in which a chelating agent is used to clear the heart block and treat a heart attack or coronary artery disease. However the effectiveness and safety of the treatment are still in doubt. Our expert Dr Tilak Suvarna Senior Interventional Cardiologist Head Department of Cardiology Asian Heart Institute Mumbai explains what chelation therapy is and its role