Blood Endothelium Biomarkers to Predict Major Adverse Cardiovascular Events After Percutaneous Coronary Intervention

Inclusion Criteria: * Age\>18 years old * Scheduled for PCI * Clinical evidence of ischemic heart disease and/or abnormal functional study * New coronary artery lesion \>50% * treatment with bare metal stent planned * Informed consent explained, red, understood and signed by the patient Exclusion Criteria: * Pregnancy, birth or lactation period \<6 months ago * Women of childbearing age who do not intend to use accepted anticonceptive measures or who wish to get pregnant * Left ventricular ejection fraction \<30% * Acute coronary syndrome (ST-elevation or not) in the past month * Planned drug eluting stent implantation * Lesion in arterial or venous bypass or anastomosis with coronary * Severe renal insufficiency (creatinine clearance \<30 mL/') * Severe hepatic insufficiency * Systemic inflammatory pathology of any kind * Hematologic or other malignancy, prior radio- or chemotherapy * Use of corticosteroïds or immune suppression therapy * Contrast allergy * Life expectancy \<1 year * Participation in other clinical study which has not ended yet