Coronary Artery Disease and Renal Failure Registry

Inclusion Criteria: * Women and men \>= 18 years of age * Patients with actually performed interventional coronary angiography and there a documented coronary heart disease, defined as at least one documented stenosis \>= 50 % in at least one main coronary vessel (Main steam; RCX; RIVA; RCA) * European/Caucasian descent (European/Caucasian parents and grandparents) * Availability of an urine, serum- and EDTA blood sample of the patient * Documented consent of patients for handling of personal medical data, including a genetic analysis Exclusion Criteria: * Patients who have been already recruited into this registry * Patients with organ transplantations, apart from kidney transplantations * Immunosuppressive therapy, apart from immunosuppressive therapy after kidney transplantation * Patients with polycystic renal disease * Pregnant and breastfeeding patients * Known malignant tumor