Every year, 17.9 million people die of a cardiovascular disease (CVD), says the World Health Organization (WHO). In addition to being the real life-giving organ, the heart is also quite complex. There are so many things that could go wrong; the nodes could start sending out irregular impulses, the coronary arteries could get blocked by plaque, the heart could stop beating altogether, the valves could dysfunction, or the heart muscle (myocardium) or its inner or outer layers could swell up. This is why, the demand for a number of cardiac procedures, including those that involve placing a medical device inside the body, is increasing.