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- W2085401567 abstract "We studied the course of coronary stenosis in the first 62 patients (45 men and 17 women) referred for coronary angioplasty in the interval between the diagnostic arteriogram and the preangioplasty coronary arteriogram. In 42 patients, the stenosis was in the left anterior descending artery, in 17 patients in the right coronary artery, in one patient in the left circumflex, and in two patients in the vein graft. Twenty-six patients had stable angina pectoris, 34 patients had unstable angina, and two patients had no angina. The coronary stenosis did not change significantly in any patient with stable angina. Conversely, the stenosis progressed in nine of the 34 patients with unstable angina (26.5%). In five of the nine patients with progression, total occlusion ensued. In four of the five patients total occlusion occurred within the 45-day interval between the diagnostic and the preangioplasty coronary arteriogram. New or increased preexisting collaterals to the occluded vessel developed in all five patients with total occlusion. None of these patients had clinical or electrocardiographic evidence of myocardial infarction or significant changes in ventricular function. Angiographic evidence of thrombi was seen in ten of 34 patients with unstable angina (29%). We concluded that coronary artery stenosis in patients with unstable angina pectoris is progressive in a significant number after a short time. The cause of progression of coronary stenosis in patients with unstable angina is unknown. Since in a significant number of patients with unstable angina coronary thrombus was suggested by angiography, coronary thrombosis superimposed on coronary atherosclerosis may play a significant role in this syndrome. Further prospective studies are needed, including repeat coronary arteriograms to evaluate the cause of unstable angina, define the role of coronary thrombosis, and evaluate the cause of unstable angina, define the role of coronary thrombosis, and evaluate the efficacy of more aggressive treatment adding the use of prolong heparin and antiplatelet agents prior to coronary angioplasty." @default.
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- W2085401567 date "1984-01-01" @default.
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- W2085401567 title "Rapid progression of coronary stenosis in patients with unstable angina pectoris selected for coronary angioplasty" @default.
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- W2085401567 doi "https://doi.org/10.1002/ccd.1810100202" @default.
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