<qa>  What is the average dose of candesartan?Patients scheduled for elective aortic valve replacement for severe AVS at Odense University Hospital will consecutively be offered participation in the study at hospital admission 2 days prior to surgery. If patient consent is obtained patients will undergo the study program. Baseline echocardiography, neurohormonal analyses, and 6 min walk test will be performed the day before surgery. After surgery and when the patient is transferred from cardiac intensive care unit to step down unit treatment with candesartan Atacand 8 mg daily is initiated, and during hospitalization patients are titrated to 32 mg. After hospital discharge patients will be followed in the heart failure clinic at Odense University Hospital. Study medication will be handed to the patient at each visit. 