نتایج جستجو برای: coronary artery stenosis
تعداد نتایج: 346871 فیلتر نتایج به سال:
BACKGROUND Renal artery stenosis (RAS) is a common finding in patients undergoing coronary angiography. We designed this study to look for the frequency and any predictors of renal artery stenosis in patients with coronary artery disease (CAD). METHODS A total of 201 consecutive patients with CAD confirmed by coronary angiography underwent an abdominal aortogram in the same sitting to screen ...
BACKGROUND There are controversies regarding the usefulness of coronary artery calcium score (CACS) for predicting coronary artery stenosis. The aim of this study was to determine the prognostic value of CACS for determining the presence and severity of coronary artery disease (CAD) in patients with sign and symptoms of the disease. MATERIAL/METHODS In this cross-sectional study, 748 consecut...
Assessment of coronary artery stenosis severity depends on either determination of the anatomic dimensions of the stenosis by angiographic techniques or assessment of the functional significance of the stenosis by measurement of its effect on blood flow. Measurement of myocardial blood flow during maximal pharmacological vasodilation (vasodilator reserve) has been used to examine the functional...
BACKGROUND AND PURPOSE The impact of asymptomatic coronary artery disease on the risk of major vascular events in patients with cerebral infarction is unknown. METHODS Four hundred five patients with acute cerebral infarction underwent carotid, femoral artery, thoracic, and abdominal aorta ultrasound examination. Of 342 patients with no known coronary heart disease, 315 underwent coronary ang...
background one of the most important causes of mortality in developed and developing countries is coronary artery disease. coronary artery disease (cad) may develop by deposition of lipid, fibrous or calcified debris on the surface of the coronary artery lumen. fibrous plaque and calcified plaque may cause substantial stenosis of coronary arteries leading to ischemia of heart muscle while lipid...
Invasive coronary angiography (ICA) is the accepted reference standard for assessment of artery stenosis because its unprecedented temporal and spatial resolution ability to perform therapeutic interventions in same session [1].
OBJECTIVES The aim of the present study is to explore the correlation between vascular endothelial function and coronary artery stenosis in non-hypertensive patients with elevated blood pressure under stress. METHODS This study included 1141 patients suspected of having coronary artery disease (CAD) without hypertension. Coronary arteriography and ultrasonic detection were used to measure the...
introduction : significant left main coronary artery stenosis jeopardizes the entire myocardium of the left ventricle and has the worst prognosis of any form of coronary artery disease. coronary-artery bypass grafting (cabg) has been considered as the standard therapeutic approach for such patients. there are limited data on the safety and effectiveness of percutaneous coronary intervention (pc...
BACKGROUND Most coronary artery anomalies are congenital in origin. This study angiographically determined the prevalence of different forms of anomalous aortic origins of coronary anomalies and their anatomic variation in a selected adult Lebanese population. Correlation between these anomalies and stenotic coronary atherosclerotic disease was also investigated. METHODS 4650 coronary angiogr...
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