According to an article published in Anesthesiology News, intraoperative transfusion of packed red blood cells (PRBC) increases the risk of postoperative delirium. The study suggests that even transfusions performed at a relatively high hemoglobin threshold (7.3 g/dL) may contribute to this risk. The article highlights the importance of considering the risk of delirium when deciding on intraoperative PRBC transfusion. The full article is available in the print edition of Anesthesiology News.