Purpose: Analyse the influence of the nutritional status of older patients undergoing emergency abdominal surgery on postoperative complications, mortality and mean length of hospital stay.
Methods: We performed a longitudinal observational study including patients older than 80 years who underwent emergency surgery by the general surgery service for abdominal pathology, who were followed by the geriatrics service between September 2018 and May 2021. Malnutrition was diagnosed using Global Leadership Initiative on Malnutrition (GLIM) criteria, classifying patients as malnourished and normonourished.