نتایج جستجو برای: coronary stenosis
تعداد نتایج: 244216 فیلتر نتایج به سال:
This study evaluated the relationship between the location of the most severe coronary artery stenosis and the subsequent acute myocardial infarction (AMI). Methods: Of 1590 patients who were admitted with a diagnosis of AMI, we identified 44 patients who had undergone previous myocardial perfusion SPECT. Thirty-one of these patients also had previous coronary angiography. The relationshi...
abstract background: recently, small dense low density lipoprotein (sdldl) has been highlighted as a new risk factor for the coronary artery disease (cad).small dense ldls are believed to be atherogenic since these particles are taken up more easily by arterial wall. they are readily oxidized and have reduced affinity for low density lipoprotein (ldl) receptor and increased affinity for arter...
objectives to evaluate predictive value of vessel specific coronary artery calcium (cac) score in predicting obstructive coronary artery disease. patients and methods in this diagnostic test study we evaluated patients with coronary computed tomography angiography (ccta) and cac score which had been referred to two referral radiology center in tehran, iran and finally we selected 2525 patients ...
Background & Aim :Low density lipoprotein (LDL) particles are heterogenous with respect to their size,density and lipid composition. Among LDL particles ,the smaller and denser LDLs (small dense (sd)LDL) are believed to be atherogenic since these particles are taken up more easily by arterial wall.They are readily oxidized and have reduced affinity for LDL receptor and increased affinity for ...
conclusions our findings revealed that the severity of coronary artery stenosis is common in diabetic patients compared to nondiabetics. early diagnosis and treatment of cad in diabetic patients is recommended. results based on data found in our study, 93.8% of diabetic and 83.4% of nondiabetic patients were shown to suffer coronary artery stenosis. severe involvement (grade 3vd) of coronary ar...
Background: Epidemiological studies have suggested an association between higher body iron stores and coronary artery disease. It is believed that inflammation and oxidation are important mechanisms involved in the complex pathological process of atherogenesis. Free radical production is catalyzed and accelerated in the presence of iron. The determination of plasma ferritin levels is a convenie...
we report a rare case of acute right coronary artery stenosis developing in a patient undergoing aortic valve replacement. we present a case report with a brief overview of the literature relating to coronary artery occlusion associated with cardiac valve surgery – the theories and treatments are discussed. a 85 year-old female was admitted under the care of the cardiothoracic team with signs ...
myocardial fractional flow reserve (ffr) is a new index of the functional significance of intermediate coronary stenoses that is calculated from pressure measurements made during coronary arteriography. the aim of this study was to evaluate the correlation between non-hyperemic coronary pressure dicrotic notch and fractional flow reserve (ffr). a consecutive of 114 patients (73 men and 41 women...
Abstract Background: Coronary artery disease, (CAD) is an important risk for morbidity and mortality. Because of controversial reports about relation between high-sensitivity C-reactive protein (hs-CRP) level and the severity of coronary artery stenosis, this study was done in Taleghani Hospital. Methods: In this case-control study 85 patients with CAD undergoing coronary angiography were ...
percutaneous coronary angioplasty (ptca) of a coronary stenosis without documented ischemia at noninvasive stress testing is often performed, but its benefit is unproven. coronary pressure– derived fractional flow reserve (ffr) is an invasive index of stenosis severity defined as the ratio of maximal blood pressure in a stenotic vessel to the normal maximal pressure in the same vessel. ffr is a...
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