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70 percent stenosis of the right internal carotid artery as seen by ultrasound. Arrow marks the lumen of the artery. CT image of a 70 percent stenosis of the right internal carotid artery. Carotid artery stenosis is usually diagnosed by color flow duplex ultrasound scan of the carotid arteries in the neck.
Vascular occlusion is a blockage of a blood vessel, usually with a clot. It differs from thrombosis in that it can be used to describe any form of blockage, not just one formed by a clot. When it occurs in a major vein , it can, in some cases, cause deep vein thrombosis .
Arterial occlusion is a condition involving partial or complete blockage of blood flow through an artery. Arteries are blood vessels that carry oxygenated blood to body tissues. [ 1 ] [ 2 ] An occlusion of arteries disrupts oxygen and blood supply to tissues, leading to ischemia . [ 1 ]
London had a 99% blockage in his right coronary artery, which cut off blood flow to his heart muscle. It required doctors to widen the artery and insert a stent.
Ray Romano. Stephen Lovekin/Shutterstock A close call. Ray Romano revealed that he had heart surgery to deal with a major blockage in his main artery. Celebrity Health Scares Through the Years ...
Arrhythmias can also occur, most-commonly atrial fibrillation (incidence of 20–40%) that is treated with correcting electrolyte balance, and rate and rhythm control. [ 42 ] [ 38 ] However, arrhythmia such as ventricular tachycardia or fibrillation can be a sign of postoperative myocardial ischemia that is treated depending on the cause.
Percent diameter restenosis (or just percent diameter stenosis) is a measure observed in individual patients and is typically calculated as the difference between the minimal (or minimum) luminal diameter (MLD) from the target reference vessel diameter (RVD), divided by the RVD, and multiplied by 100 to get the percentage of stenosis.
Romano revealed that he had "just had to have a stent put in" his heart, because "I had 90% blockage" in "the main artery." He added, "I got kinda lucky that we found it."