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Coronary artery disease (CAD) or ischemic heart disease are the terms used to describe narrowing of the coronary arteries. [8] As the disease progresses, plaque buildup can partially block blood flow to the heart muscle. Without enough blood supply , the heart is unable to work properly, especially under increased stress.
In the second approach, called the off-pump coronary artery bypass (OPCAB), these anastomoses are constructed while the heart is still beating. The anastomosis supplying the left anterior descending branch is the most significant one and usually, the left internal mammary artery is harvested for use.
The heart is a muscular organ situated in the mediastinum.It consists of four chambers, four valves, two main arteries (the coronary arteries), and the conduction system. The left and right sides of the heart have different functions: the right side receives de-oxygenated blood through the superior and inferior venae cavae and pumps blood to the lungs through the pulmonary artery, and the left ...
Coronary occlusion is caused by plaque inside of the blood vessels that direct oxygen rich blood to the heart. [8] Plaque is caused by fatty deposits and scar tissue that cling to the walls of coronary arteries. [9] The development of plaque takes years and leads to stenosis of the coronary arteries and progressively reduces blood flow. [8]
Plaque build-up often doesn’t cause symptoms, but it can block blood flow to vital organs like your heart. Coronary artery disease occurs when atherosclerosis affects the arteries supplying ...
English: Heart diagram with labels in English. Blue components indicate de-oxygenated blood pathways and red components indicate oxygenated blood pathways ...
Anatomy figure: 20:04-01 at Human Anatomy Online, SUNY Downstate Medical Center – "Posterior view of the heart." [dead link ] Anatomy photo:20:09-0104 at the SUNY Downstate Medical Center [dead link ] – "Heart: The Left Coronary Artery and its Branches" Image at merck.com Archived 14 April 2006 at the Wayback Machine
The progressive accumulation of plaque within the artery wall over decades leads to the development of unstable vulnerable plaque which can detach as clots leading to strokes and heart attacks. IVUS is of use to determine both plaque volume within the wall of the artery and/or the degree of stenosis of the artery lumen.