Against the opposition of the current President and leaders of the Democratic Party, they have fought to establish, and now to expand, the D.C. Opportunity Scholarship Program, through which thousands of low-income children have been able to attend a school of their choice and receive a quality education.
coronary occlusion. noun. Medical Definition of coronary occlusion. : the partial or complete blocking (as by a thrombus, by spasm, or by sclerosis) of a coronary artery.
Chronic Total Occlusions (CTOs) of coronary arteries repre-. sent one of the most challenging problems in contemporary. interventional cardiology. A CTO is a complete blockage. that has been present for at least three months, although. most of these arteries have been occluded for consider-. ably longer. CTOs are very common, occurring in 15-20%. of patients with significant coronary artery disease.