Low Geriatric Nutritional Risk Index Increases Postoperative Delirium Risk

Postoperative delirium remains a frequent and costly complication in the geriatric surgical population, often leading to increased mortality, prolonged hospitalization, and a loss of functional independence [1, 2]. While several risk factors for this acute neurocognitive disorder are nonmodifiable, clinical focus has increasingly shifted toward identifying and addressing physiological vulnerabilities before the patient enters the operating room [3]. Malnutrition is a particularly significant concern, as it has been linked to a nearly threefold increase in delirium risk among patients undergoing surgery for hip fractures [4]. Current clinical guidelines emphasize the importance of multicomponent preventive strategies, yet the utility of specific, objective nutritional screening tools in predicting these adverse outcomes remains a subject of active investigation [2]. A new meta-analysis now offers fresh insights into the predictive value of a standardized nutritional index for identifying patients at risk for this postoperative complication.