stents

Stents Technologies in Coronary Artery Disease

Author – Dr. Alan Koay Choon Chern, Consultant Cardiologist, Columbia Asia Hospital – Taiping An overview of coronary stents evolution, its current status and future directions The heart has a network of coronary arteries which circulates blood within the organ. From the aorta,  vessels branch off to form the right and the left coronary arteries for coronary circulation. Coronary artery disease is the obstruction of any of these vessels, resulting in heart attacks or acute coronary syndrome. Coronary artery disease (CAD), either narrowing (stenosis) or blockage (occlusion), arises from plaque deposition in the arterial wall, also known as atherosclerosis. This results in restriction of  blood flow and hence oxygen to the heart muscle, which is called ischemia. Atherosclerosis is beyo...

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