Puerta De Hierro University Hospital

This study is testing a 'prehabilitation' program designed to help patients with digestive cancers get stronger before major surgery. The program combines supervised exercise, nutritional advice, and psychological support during the period of chemotherapy before an operation. The…

This study is testing if adding a drug called acetazolamide helps hospitalized heart failure patients who still have significant fluid buildup despite receiving standard diuretic medications. Researchers will measure how much extra salt and fluid patients' bodies release over 24-…