Predictors and Outcomes of Cardiac Surgery-Associated Delirium. A Single Centre Retrospective Cohort Study

Abstract

Background: The predictors and independent outcome association of delirium after cardiac surgery are important and yet poorly characterised. Methods: We performed a retrospective observational study of cardiac surgery patients between January 2009 and March 2016. We defined delirium using ICD-10 diagnostic codes. Multivariable analysis was conducted to find independent associations between baseline variables, delirium, and key clinical outcomes. Results: We studied 2,447 study patients (28.7% female, median age was 66 [IQR 57–74] years). Delirium was coded for in 12.9% of patients overall, and in 22.9% of those aged >75 years. Increasing age, Charlson co-morbidity index, admission not from h..