Metabolomics Analysis of Acute Kidney Injury and Delirium After Cardiac Surgery

Clinical evidence suggests that renal injury leads to changes in the structure of the cerebral cortex in patients, suggesting the existence of the renal brain axis. Therefore, some scholars have proposed that AKI may be an important cause of secondary injuries such as delirium. Approximately 60% of AKI patients in clinical practice experience delirium.Although the underlying mechanism associated with acute renal injury and delirium is still unclear, it has been recognized that it increases incidence rate and mortality, prolongs hospital stay, and accelerates long-term cognitive decline. The investigators assume that the serum metabolic profiles of patients with delirium and AKI after cardiac surgery, with delirium only, with AKI only, and without delirium or AKI after surgery can be compared separately to explore the mechanisms of complications and the interaction mechanisms between organ damage after extracorporeal circulation cardiac surgery, and to identify metabolic markers specific to complications, identify patients with increased susceptibility, and provide reference for early diagnosis of complications and basis for early intervention.