Hospital Universitario La Paz

This study compares two types of artificial elbow joints used to replace a broken bone in the elbow that can't be fixed. About 90 patients will be randomly assigned to receive one of two implant designs. Researchers will track their elbow function, pain, and movement for two year…

This study looks at whether a special laser can help open heart arteries that are too hard or blocked for standard balloon treatment. About 230 adults with severe coronary artery disease will receive the laser procedure and be followed for one year. The goal is to see if the lase…

This study tests whether giving very preterm babies (born before 32 weeks) a special oil containing arachidonic acid and DHA helps them absorb these essential fatty acids. Fifteen babies will receive the supplement from their first days of life until 36 weeks or discharge. Resear…