Spot Urinary Analysis to Assess Loop Diuretic Efficiency in Stable Heart Failure (DIPSTICK)

The primary objective of this study is to assess whether the urinary sodium/creatinine or chloride/creatinine ratio might predict successful downtitration of loop diuretics in patients with stable heart failure without clinical signs of volume overload. In addition, this study will provide information on loop diuretic efficiency and urinary electrolyte composition after intake of diuretics in stable outpatients with heart failure.