Venous Ultrasound Guided Organ Decongestion in Patients Hospitalized with Acute Decompensated Heart Failure

The purpose of this study is to assess the feasibility, safety and effectiveness of VExUS guided organ decongestion compared to standard of care in patients hospitalized with acute decompensated heart failue (ADHF). 180 patients will be randomly assigned to either intervention (VExUS) arm or standard of care (SOC) arm. In the intervention arm, the treatment team will be informed by the study team about the results of the VExUS examination to supplement the clinical decision of proper decongestion treatment, while no information will be provided in the standard of care arm. Study visits are scheduled every second day while hospitalized, end of study is set to day of discharge from the ward. Telephone consultation and review of medical journal scheduled after 6 months to assess exploratory endpoints. The overall rationale of the the study is to investigate if venous organ congestion investigated by VExUS score, is a modifiable risk factor in patients hospitalized with ADHF. And secondary to assess if venous organ decongestion guided by VExUS score may safely be implemented in patients hospitalized with ADHF and result in: * differences in length of hospitalization * changes in biomarkers of cardiac strain * changes in renal function and markers of renal injury * achieved doses of heart failure treatment at discharge * in-hospital complications Safety measures with special attention on symptomatic hypotension, arrhythmias, metabolic alkalosis and electrolyte disturbances will be addressed.