Chronic Coronary Artery Disease Clinical Trial
Official title:
Contribution of the Pharmacological Profile of the A2A Receptor to Adenosine in the Diagnosis of Myocardial Ischemia
The chronic coronary artery disease could be detected by a drop in the expression of A2A receptors to adenosine, while high values of the KD / EC50 ratio are a sign of coronary ischemia. Knowing the number of A2A receptors in circulating lymphocytes could allow detection of coronary artery disease and evaluating the functionality of A2A receptors in circulating lymphocytes could allow quantification of myocardial ischemia. Thus, a simple and unique blood sample would quickly detect patients with life-threatening coronary ischemia. This would avoid prolonged hospitalizations and costly non-invasive tests (stress echocardiography, myocardial scintigraphy) in patients without coronary artery disease.
The main objective of this study is to evaluate the discriminating capacities of A2A adenosine receptors expression on the surface of circulating lymphocytes for the detection of coronary artery disease in patients hospitalized for surgery of the aorta and / or arteries of the lower limbs. The secondary objectives are: Assessment of the discriminating capacities of the functionality (KD / EC50) of A2A adenosine receptors on the surface of circulating lymphocytes, for the diagnosis of myocardial ischemia in patients hospitalized for surgery of the aorta and / or arteries of legs. Determinate the best threshold for discriminating patients with coronary artery disease and estimate the discriminating performance associated with this threshold. Determinate the best threshold for discriminating patients with myocardial ischemia and estimate the discriminating performance associated with this threshold. ;
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