Using ultrasound to predict which ICU patients need fluid treatment

This research is testing whether doctors can use a bedside ultrasound scan to predict which intensive care patients will respond well to fluid treatment. The study measures the size of blood vessels in the groin before and after patients receive fluids, then compares these measurements to see if they can reliably identify who will improve. This is an observational study, meaning researchers will simply measure and track what happens during your routine care — they won't do any extra procedures just for research.

Doctors in the ICU often need to give patients extra fluids to help their heart and circulation, but giving too much fluid can sometimes cause harm by causing swelling and breathing problems. This study exists to find a simple, non-invasive bedside tool that can help doctors know ahead of time which patients actually need the extra fluid and which patients won't benefit from it.