The most common cause of CAD is vascular injury with cholesterol plaque buildup in the arteries, known as atherosclerosis. Reduced blood flow occurs when one or more of these arteries becomes partially or completely blocked. The four primary coronary arteries are located on the surface of the heart: right main coronary artery left main coronary artery left circumflex artery left anterior descending artery Cardiologist in Nagpur || Heart Specialist in Nagpur || Heart Doctor in Nagpur || Heart treatment in Nagpur ||