 1. Clinical 1 Patients with angina and documented ischemia or patients with documented silent ischemia 2 Patients who are eligible for intracoronary stenting 3 Age 18 years, 75 ages 4 Preserved left ventricular ejection fraction 40 5 Written informed consent to the study protocol 6 Patients with hemodynamic stability and appropriate blood pressure, which were suitable for administration of valsartan 160mg 