Testing nerve block procedure to reduce heart failure fluid buildup

This trial is testing a procedure that blocks signals in the splanchnic nerves—nerves that control how your body holds onto fluid—to see if it can help people with heart failure feel better and move around more easily. Researchers think that part of heart failure involves the body holding onto too much fluid in the belly area, and this new treatment might help redirect that fluid. The study will compare people who receive the nerve-blocking procedure to those who receive a sham (fake) procedure to see if it truly works.

Current heart failure treatments mainly focus on removing excess fluid from the body, but these approaches haven't worked as well as doctors hoped. Researchers believe this new treatment addresses a different part of the problem—how the body distributes fluid internally—which could help reduce congestion, improve your ability to exercise, and ease symptoms like shortness of breath.