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Clinical Congenital Coronary Artery Ostial Disease (COSA)

Coronary Ostial Stenosis or Atresia (COSA) is a spectrum of rare developmental conditions with different implications in pathophysiologic mechanisms and clinical areas. A normal coronary ostium is located in the middle of aortic sinus. However, when the left ostium is located at sinus of Valsalva that is abnormal for distal coronary distribution, the situation is Read more

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Coronary Artery Stenosis

The coronary artery stenosis occurs due to the atherosclerosis that takes place in epicardial coronary arteries. The Atherosclerotic plaques affect the blood flow also narrow down that coronary artery lumen. The decrease in the coronary artery may give symptoms or not. It could occur during rest or while involving in any physical activity. This heart Read more