نتایج جستجو برای: coronary arteries
تعداد نتایج: 236920 فیلتر نتایج به سال:
Heart failure is a clinical syndrome characterized by the inability of the heart to provide nutrient supply to tissues. In 75% of cases, the underlying pathology causing heart failure in patients with cardiac death is coronary heart disease. A rabbit model of heart failure with coronary ligation was produced to mimic coronary heart disease in humans. After producing the model, two arteries ...
Background: A correlation between coronary artery disease (CAD) and atherosclerosis of peripheral arteries and the determination of noninvasive indexes for its existence and extent have been sought by many researchers. Some studies report that the intima-media thickness (IMT) of peripheral arteries could play this role. This study evaluated the correlation between the IMTs of common carotid and...
Coronary artery originating from pulmonary is a rare congenital vascular malformation, which generally presents corresponding clinical symptoms with the growth of patients’ age. CTA and angiography are important methods for diagnosis this disease, provide evidence treatment strategies patients. Keywords: bicardiovascular malformations; coronary arteries; cta.
OBJECTIVES This study sought to examine effect of vitamin C, an antioxidant, on the abnormal vasomotor reactivity in spasm coronary arteries. BACKGROUND Oxygen free radicals generated in the arterial walls have been shown to cause endothelial vasomotor dysfunction. METHODS Responses of the epicardial arterial diameters of the left coronary arteries to the intracoronary infusion of acetylcho...
Coronary artery disease and severe aortic stenosis (AS) often coexist. This study sought to investigate the impact of normal coronary arteries as negative risk marker in patients undergoing transcatheter valve implantation (TAVI). Consecutive with AS TAVI were dichotomized according presence or absence arteries, defined lesions diameter ≥30% vessels ≥1.5 mm on angiogram without prior revascular...
A 49-year-old man presenting with ST-elevated myocardial infarction was brought to our emergency department with AL amyloidosis. Baseline coronary angiography showed no significant stenosis of the epicardial coronary arteries, however, coronary artery angiography in response to acetylcholine and coronary flow reserve in response to papaverine were abnormal, which suggested impairment of vascula...
Exercise training produces enhanced nitric oxide (NO)-dependent, endothelium-mediated vasodilator responses of porcine coronary arterioles but not conduit coronary arteries. The purpose of this study was to test the hypothesis that exercise training increases the amount of endothelial NO synthase (eNOS) in the coronary arterial microcirculation but not in the conduit coronary arteries. Miniatur...
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