ReDS-guided Decongestion Strategy in Patients Hospitalized for Heart Failure

This study is testing a device-guided approach to treating fluid buildup (congestion) in patients hospitalized for heart failure. The device, called ReDS (Remote Dielectric Sensing), measures the amount of fluid in the lungs non-invasively. Researchers want to see if using this device to guide diuretic (water pill) treatment leads to better outcomes than standard care. **You may be eligible if...** - You are hospitalized primarily because of heart failure with signs of fluid buildup (shortness of breath, leg swelling, etc.) - Your blood levels of a heart stress marker (NT-proBNP or BNP) are elevated on admission **You may NOT be eligible if...** - You are shorter than 150 cm or taller than 190 cm, or your BMI is under 22 or over 39 (as the ReDS device is not validated in these ranges) - You need intravenous medications to support your heart (inotropes, vasopressors) or mechanical heart support - You have an abnormality affecting your right lung (including a pacemaker on that side) - You are scheduled for heart surgery or a procedure (bypass surgery, valve repair, TAVR, etc.) during the trial - You have severe kidney disease (GFR under 20) or are on dialysis - Your life expectancy is less than 12 months due to a non-heart condition - You are already enrolled in another interventional clinical trial Talk to your doctor to see if this trial is right for you.