[Assessment of concordance between CAM-ICU scale and nursing delirium scale in postoperative period of ICU patients after cardiac surgery].

OBJECTIVE: To evaluate concordance between the scale of delirium assessment CAM-ICU and the Nursing Delirium Screening Scale (NDSS) in postoperative cardiac surgery.

MATERIAL AND METHODS: Prospective study in tertiary hospital with consecutive selection of patients after cardiac surgery. During the stay in the Intensive Care Unit, CAM-ICU and NDSS were administered by the same researcher. For demographic and preoperative risk factors of delirium, descriptive statistical analysis was performed. Concordance was assessed using kappa index.

RESULTS: 106 patients were included, performing 214 evaluations. Incidence of delirium with the CAM-ICU scale was of 8.4%, and of 16.8% with NDSS. The concordance expressed by the index Kappa was of 0.541.

CONCLUSIONS: The concordance between the CAM-ICU scale and the NDSS in the postoperative cardiac surgery and during the stay in the Intensive Care Unit is low. Currently, the use of the CAM-ICU was recommended in this context, but it must not be replaced for the NDSS.