In the “This Month in Anesthesiology” feature in the September 2018 issue,1 the Z score was incorrect in the paragraph highlighting an article by Brown et al.2 published in the same issue: “Cognitive Decline after Delirium in Patients Undergoing Cardiac Surgery.” The Brown et al. article has been corrected as of September 12, 2023,3 and the “This Month in Anesthesiology” feature is corrected as follows:
“The hypothesis that delirium would be associated with decline in cognition at 1 month after cardiac surgery was tested in a prospective observational study of 142 patients. Delirium was defined as any Confusion Assessment Method, Confusion Assessment Method for the Intensive Care Unit, or chart-review positive assessment during hospitalization. Neuropsychologic testing, which assessed a number of cognitive domains known to be affected by cardiac surgery, was generally performed within 2 weeks of surgery and then 4 to 6 weeks and 1 yr after surgery. Delirium was diagnosed in 76 (53.5%) patients. The decline in composite cognitive Z score from baseline to 1 month after surgery was greater among patients with delirium compared to patients without delirium (greater decline by –0.19; 95% CI, –0.35 to –0.04) in a model adjusted for age, sex, race, education, and logistic EuroSCORE. On the other hand, at 1 yr there was no difference in adjusted decline from baseline in composite cognitive Z score by delirium status. See the accompanying Editorial View on page 389. (Summary: M. J. Avram. Image: ©ThinkStock.)”
